Chemical weeding efficient, thorough , labor , time , help large scale mechanized operations, efficient agriculture has become an indispensable important measures. However, due to the improper selection or spraying herbicides wrong way, the season or after the crop to cause serious injury to occur. Once phytotoxicity science should take timely countermeasures .
First, rule out the use of herbicides drug excessive drug toxicity , injury has occurred or will occur , to take early measures to detox . Immediately drain the water contained in the field of irrigation , several consecutive flush with the new irrigation, drainage facilities into lime or a combination of other methods , and in the fields of acidic herbicides, reducing the content of herbicides in soil ; medicine for plants harm , garden sprayers the available water irrigation machinery residue leaching of toxic plants , reducing the poison stick on the leaf . Severe poisoning plots should be rinsed after exposure to deep plowing , and then try to grow a small amount of sensitive crops can observe two weeks to prove that no injury again when other crops .
Second, to strengthen field management of crops on plots by the injury , to strengthen field management , the use of fast-acting fertilizer by Shi , scientific management, to reduce the impact of herbicides on crops , to reduce the losses down .
Third, the application of plant growth regulators to promote crop growth plant growth regulator is to promote crop growth agents, it has a good crop growth stimulation , but also help reduce injury .
Fourth, the use of chemical antidotes dressing with activated carbon can reduce or prevent four alachlor , linuron ,24-D herbicide phytotoxicity to corn , but also in plants before planting their roots or stems dipped in powdered activated carbon , can prevent injury. Planting the crop every 15 mu 10-40 kg evenly spread on the soil surface , can also be sprinkled on the soil surface to prevent local or ribbon simazine on soybean , cucumber, wheat injury. Naphthalene dicarboxylic anhydride is used to prevent EPTC injury to corn , the usual dose is 0.15% of the seed weight ,pressure water sprayer the effect is better. CGA-43089 for sorghum seed dressing to prevent isopropyl amine, acetochlor on sorghum injury. General sorghum seeds per 1 kg 1.25-1.5 g up control effect.
02
2013年10月31日星期四
Paddy herbicide phytotoxicity main treatment measures
1 irrigation detox . Soil caused due to excessive pesticide phytotoxicity , can be repeatedly washed irrigation fields . 2 agricultural sprayer wash seedlings . Concentration is too large , or the use of foliar injury caused by excessive absorption , continuous spray rinse , reduce the concentration of the drug on the rice plants .
3 antidote . According to the nature of the injury , the choice of appropriate drug detoxification remedy. Some Plant Growth Regulators can be used as a herbicide antidote. Such as spraying modest " 920 " , can ease the extent of the injury .
4 topdressing fertilizer. Timely removal of injured leaves , increasing livestock manure composting facilities , such as urea fertilizer available , can promote root development and regeneration of new leaves .
5 foliar spraying . Yemianpenfei , rice plants absorb quickly . If using 0.1-0.3 % potassium dihydrogen phosphate or phosphorus and potassium fine, Penshibao etc. foliar fruit tree sprayers can promote rice root development , to restore growth .
3 antidote . According to the nature of the injury , the choice of appropriate drug detoxification remedy. Some Plant Growth Regulators can be used as a herbicide antidote. Such as spraying modest " 920 " , can ease the extent of the injury .
4 topdressing fertilizer. Timely removal of injured leaves , increasing livestock manure composting facilities , such as urea fertilizer available , can promote root development and regeneration of new leaves .
5 foliar spraying . Yemianpenfei , rice plants absorb quickly . If using 0.1-0.3 % potassium dihydrogen phosphate or phosphorus and potassium fine, Penshibao etc. foliar fruit tree sprayers can promote rice root development , to restore growth .
2013年10月28日星期一
The use of chemical pesticides can not be arbitrary
Farmers can not blindly mixed pesticide use in order to save labor, and to consider a variety of disease prevention and control, or another disease prevention and pest control, often several pesticides sprayed mixed results and some produce injury, and some failures (acid-base neutralization), Some toxicity increased, causing poisoning and even death. So, should scientific medicine.
To pay attention to safety when spraying backpack chemical sprayers spraying, wear a mask, plastic gloves, goggles, hand-mixed drugs is strictly prohibited. Sprayer when problems arise, not directly nibbled, mouth suction. After spraying medicine, use soapy water and rinse hands clean. If dizziness, nausea, stop spraying, to fresh air and rest, if poisoned, should go to hospital symptomatic treatment. To take good care of pesticide use should be finished bottles buried, not for containing other items.
To comply with regulations on highly toxic pesticides such as phorate, Suhua 203, one thousand six hundred and five, methyl six zero five one thousand and fifty-nine, fenitrothion Granville, flower sprayer long validity spirit, phosphorus amine, methamidophos, isopropyl phosphorus, three parathion, omethoate, zinc phosphide, aluminum phosphide, cyanides, carbofuran, fluoroacetamide, arsenic, chlordimeform, West Lik Sang, Saili scattered, ulcers net, chloropicrin , pentachlorophenol, DBCP and so on. And high pesticide residues, such as BHC, DDT, chlordane and other pesticides, the state has expressly provided, are not allowed to use on vegetables. However, some farmers still secretly uses a six zero five maggot control leeks, use of methamidophos prevention moth, aphids and other use of carbofuran, the result of consumers eating these vegetables, the cause poisoning, serious consequences.
To pay attention to safety when spraying backpack chemical sprayers spraying, wear a mask, plastic gloves, goggles, hand-mixed drugs is strictly prohibited. Sprayer when problems arise, not directly nibbled, mouth suction. After spraying medicine, use soapy water and rinse hands clean. If dizziness, nausea, stop spraying, to fresh air and rest, if poisoned, should go to hospital symptomatic treatment. To take good care of pesticide use should be finished bottles buried, not for containing other items.
To comply with regulations on highly toxic pesticides such as phorate, Suhua 203, one thousand six hundred and five, methyl six zero five one thousand and fifty-nine, fenitrothion Granville, flower sprayer long validity spirit, phosphorus amine, methamidophos, isopropyl phosphorus, three parathion, omethoate, zinc phosphide, aluminum phosphide, cyanides, carbofuran, fluoroacetamide, arsenic, chlordimeform, West Lik Sang, Saili scattered, ulcers net, chloropicrin , pentachlorophenol, DBCP and so on. And high pesticide residues, such as BHC, DDT, chlordane and other pesticides, the state has expressly provided, are not allowed to use on vegetables. However, some farmers still secretly uses a six zero five maggot control leeks, use of methamidophos prevention moth, aphids and other use of carbofuran, the result of consumers eating these vegetables, the cause poisoning, serious consequences.
Bee Disease Control and Prevention
1 Disease Prevention
There are a variety of bee diseases, in order to prevent bee diseases, harm bees, must carry out the principle of prevention, usually to strengthen the feeding and management of bees, back pack sprayer bee farm environment and attention beehive, honeycomb, bee hygiene. On the beehive, honeycomb, bee and venue for disinfection and sterilization. A small amount of lime available to open, the preparation of 10% to 20% of the milk of lime, evenly sprinkle on the bee farm or stucco walls. Or with 2% caustic soda solution was washed larvae larvae rancid disease and cystic disease contaminated hives and nest boxes, and then wash with water. For small tools, such as cover cloth and clothes can be 2% to 5% soda solution to clean. Meanwhile bee species to choose disease-resistant, keeping strong group, the introduction of quarantine must be carefully when bees. Fangfeng site requirements ventilated and dry, less than Fangfeng bee diseases endemic areas. Once a bee disease and early treatment should be promptly isolated to prevent the spread of the disease caused economic losses.
2 methods given medicines
Bee disease is given medicines given medicines during the day using the spray method spleen, splenic given medicines at night using an empty method. Method is to spray the spleen given medicines decoction after cooling, spray lightly with a clean, non-toxic spray to the honeycomb, the spraying amount of each bee can be stained with sticky syrup without wings is appropriate, at intervals of 2 ~ 3 hours 1 spray better. Empty spleen given medicines France is suffering at the 2nd stew by adding honey 50 grams or 100 grams of sugar, and then poured into the two sides of the spleen, for the bees at night to eat.household sprayer If the edge of the spleen pile beam sprinkle a little honey, bee foraging disease lure more and better efficacy.
There are a variety of bee diseases, in order to prevent bee diseases, harm bees, must carry out the principle of prevention, usually to strengthen the feeding and management of bees, back pack sprayer bee farm environment and attention beehive, honeycomb, bee hygiene. On the beehive, honeycomb, bee and venue for disinfection and sterilization. A small amount of lime available to open, the preparation of 10% to 20% of the milk of lime, evenly sprinkle on the bee farm or stucco walls. Or with 2% caustic soda solution was washed larvae larvae rancid disease and cystic disease contaminated hives and nest boxes, and then wash with water. For small tools, such as cover cloth and clothes can be 2% to 5% soda solution to clean. Meanwhile bee species to choose disease-resistant, keeping strong group, the introduction of quarantine must be carefully when bees. Fangfeng site requirements ventilated and dry, less than Fangfeng bee diseases endemic areas. Once a bee disease and early treatment should be promptly isolated to prevent the spread of the disease caused economic losses.
2 methods given medicines
Bee disease is given medicines given medicines during the day using the spray method spleen, splenic given medicines at night using an empty method. Method is to spray the spleen given medicines decoction after cooling, spray lightly with a clean, non-toxic spray to the honeycomb, the spraying amount of each bee can be stained with sticky syrup without wings is appropriate, at intervals of 2 ~ 3 hours 1 spray better. Empty spleen given medicines France is suffering at the 2nd stew by adding honey 50 grams or 100 grams of sugar, and then poured into the two sides of the spleen, for the bees at night to eat.household sprayer If the edge of the spleen pile beam sprinkle a little honey, bee foraging disease lure more and better efficacy.
2013年10月27日星期日
Catfish fish rice farming pesticide application methods to properly
Depending on the circumstances , selective spraying using the following method .
( 1 ) Sham spraying method
In the fish before the first application of pesticides in paddy field water deepened, flooded field surface 7 to 10 cm , such as a larger concentration of pesticides can be further deepened some of the fields of water , diluting the concentration of the liquid in the water , reducing or avoiding fish hazards. With a pore size bottle sprayer, sprinklers should upward sweep of rice stems and leaves, try spraying the drug in the rice leaf surface , reducing pesticide falling into the water field .
( 2 ) Drainage spraying method
Water off the field before treatment , exposing the soil surface , so that the fish concentrated in fish ditch, the fish slipped , and then spraying pesticides attention can not be applied into the ditch fish , the fish slipped in . Tanaka toxicity of pesticides to be degraded , and then further to the normal water depth of field .
( 3 ) The next sub- spraying method
First half a field or fields in a certain part to fight drugs , fish can not escape to another part of Tanaka fight drugs , the next day and then in another part of the Tanaka spraying.
( 4 ) water spraying method
Pesticides can also be applied to the inlet and outlet open, so that the water flow field , starting with the outlet of a pesticide , applied to the fields intermediate pause, to make contaminated water out of the field , and then applied to the intake from the middle at the end .
( 5 ) timing spraying method
Use powder pesticide manual sprayer spraying in the morning , because the morning Inaba , rice straw on the dew, most adherent powder , thereby reducing pesticide into the water . Use liquid, emulsion pesticides should be applied after the 16:00 ; summer temperatures should be in the 17 o'clock after spraying, reduce pesticide toxicity to fish . Do not raining or rain before spraying pesticides or pesticide will be washed into the water field , easily lead to fish poisoning.
Pay close attention to fish after spraying activities , such as found with symptoms of poisoning , you must immediately add new water , the best part of the discharge side of infusion of new waterside field water dilution water concentration to avoid fish poisoning .
( 1 ) Sham spraying method
In the fish before the first application of pesticides in paddy field water deepened, flooded field surface 7 to 10 cm , such as a larger concentration of pesticides can be further deepened some of the fields of water , diluting the concentration of the liquid in the water , reducing or avoiding fish hazards. With a pore size bottle sprayer, sprinklers should upward sweep of rice stems and leaves, try spraying the drug in the rice leaf surface , reducing pesticide falling into the water field .
( 2 ) Drainage spraying method
Water off the field before treatment , exposing the soil surface , so that the fish concentrated in fish ditch, the fish slipped , and then spraying pesticides attention can not be applied into the ditch fish , the fish slipped in . Tanaka toxicity of pesticides to be degraded , and then further to the normal water depth of field .
( 3 ) The next sub- spraying method
First half a field or fields in a certain part to fight drugs , fish can not escape to another part of Tanaka fight drugs , the next day and then in another part of the Tanaka spraying.
( 4 ) water spraying method
Pesticides can also be applied to the inlet and outlet open, so that the water flow field , starting with the outlet of a pesticide , applied to the fields intermediate pause, to make contaminated water out of the field , and then applied to the intake from the middle at the end .
( 5 ) timing spraying method
Use powder pesticide manual sprayer spraying in the morning , because the morning Inaba , rice straw on the dew, most adherent powder , thereby reducing pesticide into the water . Use liquid, emulsion pesticides should be applied after the 16:00 ; summer temperatures should be in the 17 o'clock after spraying, reduce pesticide toxicity to fish . Do not raining or rain before spraying pesticides or pesticide will be washed into the water field , easily lead to fish poisoning.
Pay close attention to fish after spraying activities , such as found with symptoms of poisoning , you must immediately add new water , the best part of the discharge side of infusion of new waterside field water dilution water concentration to avoid fish poisoning .
When using herbicides influence of temperature on the efficacy of
When using herbicides influence of temperature on efficacy , generally only postpone or advance the efficacy of play time . If the temperature is low , due to the physiological activity of weeds is also relatively slow , and thus the conductivity also slow the absorption of herbicides , such as winter or spring, and thus the efficacy of performance when backpack weed sprayers spraying time , and compared to the hot summer months , generally extending 5 10 days or even longer. This is why the temperature is low more than 10 days after the use of herbicides , the weeds are not symptoms of poisoning. Currently on the influence of temperature on herbicide roughly as follows: the temperature is below 10 degrees Celsius, most of the herbicide efficacy is difficult to play, as the temperature gradually increased gradually shown efficacy, if prolonged continuous low temperature , herbicides lose part of the effect will be weathered ; 10 degrees Celsius, most of the herbicide can show herbicidal effect , but higher than under normal circumstances, be delayed 5-10 or so ; 15 degrees Celsius, herbicide efficacy normal play ; 15-35 degrees Celsius between efficacy with increasing temperature performance faster. But not the higher the temperature the better.
And herbicides for families and genera close to target plants lawn grass, under any circumstances do not arbitrarily increase the dosage , or carried out under the guidance of technicians spraying . Grasses such as Kentucky bluegrass lawns in using consumer bluegrass, miscellaneous consumer controlling crabgrass, goose grass and other weeds ; using clover in clover music broadleaf weeds ; lawn in Golden Horseshoe Horseshoe Net Control in use broadleaf weeds , etc., are not arbitrarily increase the dosage.
For more emaciated weeds , leaves small, upright weeds , control method can be used when spraying twice . As used in bluegrass lawns eliminate Wo controlling weeds crabgrass, the dosage is 90 ml per acre , you need to be watered 25-30 kg evenly spraying . We can eliminate the first use of 45 ml Wo watered 25-30 kg spraying a mu of land, the next day using 45 ml elimination Wo watered 25-30 kg spraying a mu of land, is better than a sufficient amount of perfume sprayer spraying the herbicidal effect .
And herbicides for families and genera close to target plants lawn grass, under any circumstances do not arbitrarily increase the dosage , or carried out under the guidance of technicians spraying . Grasses such as Kentucky bluegrass lawns in using consumer bluegrass, miscellaneous consumer controlling crabgrass, goose grass and other weeds ; using clover in clover music broadleaf weeds ; lawn in Golden Horseshoe Horseshoe Net Control in use broadleaf weeds , etc., are not arbitrarily increase the dosage.
For more emaciated weeds , leaves small, upright weeds , control method can be used when spraying twice . As used in bluegrass lawns eliminate Wo controlling weeds crabgrass, the dosage is 90 ml per acre , you need to be watered 25-30 kg evenly spraying . We can eliminate the first use of 45 ml Wo watered 25-30 kg spraying a mu of land, the next day using 45 ml elimination Wo watered 25-30 kg spraying a mu of land, is better than a sufficient amount of perfume sprayer spraying the herbicidal effect .
2013年10月25日星期五
Bacterial pesticide application note
First, avoid using inferior pharmaceutical agents used to ensure the quality , should be regular manufacturers and pharmaceutical point of sale purchase , to prevent counterfeiting, and to pay attention to pharmaceutical production date and age as well as pharmaceutical reasonable safekeeping to prevent expired .
Second, avoid the use of low bacterial biological pesticide active ingredient is protein crystals and buds full of life . At low temperatures , spores multiply in vivo pest slow, not easy to play a role in protein crystals .
Third, avoid dry bacterial spores of bacteria in biological insecticide hi humid environment, and therefore the greater efficacy when used field humidity is higher, especially pesticide spraying powdered biological agents should pay attention to the field moisture . Usually in the early morning and evening when there is dew powder backpack chemical sprayers spraying bacteria , in order to facilitate better stick agents stems and leaves of crops and promote spores multiply and improve efficacy. In the foggy morning half an hour before spraying spraying or watering the vegetables are better.
Fourth, avoid strong sunlight sun's ultraviolet radiation on spores killing effect , if the strong ultraviolet light will kill bacteria . According to tests , direct sunlight for half an hour , about 50% mortality of spores ; direct one hour , spores mortality rate of 80%. In addition , ultraviolet radiation causes the crystal deformation Parasporal fallback . Therefore , spraying bacteria biocides should be cloudy or low light when vegetable intake . Generally before 10:00 on a sunny day or evening spraying.
Fifth, avoid spraying of bacterial biocide leaching heavy rain shortly after , in case of moderate to heavy rain , will be sprayed on the crop stems rinse off bacteria and reduce efficacy. However, if the pesticide under the rain after 5 hours , then not only does not reduce the control effect , but a synergistic effect , because it is conducive to bacterial spores in vivo and in vitro pests multiply rapidly .
Sixth, avoid mixing with fungicides when applying bacterial bio-pesticides and fungicides do not ( such as carbendazim, thiophanate-methyl and other mix , otherwise easily lead to pharmaceutical severe reduction in the number of bacteria , thus affecting the insecticidal effect . Thus, even weed killer sprayer sprayed fungicide spray should be washed clean before assembling bacterial biopesticides .
Second, avoid the use of low bacterial biological pesticide active ingredient is protein crystals and buds full of life . At low temperatures , spores multiply in vivo pest slow, not easy to play a role in protein crystals .
Third, avoid dry bacterial spores of bacteria in biological insecticide hi humid environment, and therefore the greater efficacy when used field humidity is higher, especially pesticide spraying powdered biological agents should pay attention to the field moisture . Usually in the early morning and evening when there is dew powder backpack chemical sprayers spraying bacteria , in order to facilitate better stick agents stems and leaves of crops and promote spores multiply and improve efficacy. In the foggy morning half an hour before spraying spraying or watering the vegetables are better.
Fourth, avoid strong sunlight sun's ultraviolet radiation on spores killing effect , if the strong ultraviolet light will kill bacteria . According to tests , direct sunlight for half an hour , about 50% mortality of spores ; direct one hour , spores mortality rate of 80%. In addition , ultraviolet radiation causes the crystal deformation Parasporal fallback . Therefore , spraying bacteria biocides should be cloudy or low light when vegetable intake . Generally before 10:00 on a sunny day or evening spraying.
Fifth, avoid spraying of bacterial biocide leaching heavy rain shortly after , in case of moderate to heavy rain , will be sprayed on the crop stems rinse off bacteria and reduce efficacy. However, if the pesticide under the rain after 5 hours , then not only does not reduce the control effect , but a synergistic effect , because it is conducive to bacterial spores in vivo and in vitro pests multiply rapidly .
Sixth, avoid mixing with fungicides when applying bacterial bio-pesticides and fungicides do not ( such as carbendazim, thiophanate-methyl and other mix , otherwise easily lead to pharmaceutical severe reduction in the number of bacteria , thus affecting the insecticidal effect . Thus, even weed killer sprayer sprayed fungicide spray should be washed clean before assembling bacterial biopesticides .
Herbicides on weeds and crop selectivity
1 -selective herbicide (selective herbicide): these herbicides in a certain dose range, can kill weeds while the crop no poison, or poison is very low. Such as 2,4 - drops, MCPA ,liquid sprayer dicamba , bentazon , oats fear , propanil and stable killing and so on. Relative selectivity of herbicides only in certain doses, the crop growing specific security . Administered overdose or sensitive period of application of the crop will affect crop growth and development , or even kill crops.
(2) non-selective herbicides or herbicide (non-selective herbicide): these herbicides on crops and weeds have toxic effects , such as glyphosate , paraquat ( Gramoxone ) and so on. These herbicides are mainly used in non-cultivated land or kill weeds before crop emergence , or spray with a protective cover crops between the rows in the directed manual sprayer spray .
(2) non-selective herbicides or herbicide (non-selective herbicide): these herbicides on crops and weeds have toxic effects , such as glyphosate , paraquat ( Gramoxone ) and so on. These herbicides are mainly used in non-cultivated land or kill weeds before crop emergence , or spray with a protective cover crops between the rows in the directed manual sprayer spray .
2013年10月24日星期四
Banana foliage spray
What kind of foliar fertilizer , to be based on soil nutrient content, plant nutrient deficiency condition and bananas at different growth stages , generally with urea ( excluding biuret ) , NPK ( N : P: K 15 : 15:15 ) . Potassium dihydrogen phosphate , fertilizer ( such as leaf treasure etc.) and various fertilizer ( zinc sulfate , manganese sulfate , ferrous sulfate, borax , neutral sulfate , etc. ) . Use concentration should also be based on different types of fertilizer and banana growing period may be, such as juvenile period ( 7 to 12 leaf stage ) urea, NPK 150 to 250 times, grow plants to young fruit ( 22 leaf stage to fruit four into meat degrees ) urea, NPK 50 to 100 times , potassium dihydrogen phosphate 250 to 350 times, green Boom is 800 to 1000 times , 2000 times as magnesium sulfate , a variety of other micro- fertilizer ( zinc sulfate , etc. ) from 3000 to 5000 times , such as foliar fertilizer containing auxin treasure 8000 to 10,000 times,
Foliar application should also pay attention to do : Use good performance spray mist , fog spot fine and uniform ; preferably 0.5% of spreading agent ( such as mild detergent ) ; spraying best time after 4 o'clock in the afternoon .
After years of production practice has proved that the banana rhizosphere fertilization combined with foliar fertilization effect than the single one occasion , able to increase production , but also to improve fruit quality, especially for the skin color , trigger sprayers the fruit quality and storability have been greatly improved , while saving the amount of fertilizer , reduce banana production costs.
Foliar application should also pay attention to do : Use good performance spray mist , fog spot fine and uniform ; preferably 0.5% of spreading agent ( such as mild detergent ) ; spraying best time after 4 o'clock in the afternoon .
After years of production practice has proved that the banana rhizosphere fertilization combined with foliar fertilization effect than the single one occasion , able to increase production , but also to improve fruit quality, especially for the skin color , trigger sprayers the fruit quality and storability have been greatly improved , while saving the amount of fertilizer , reduce banana production costs.
Banana important during fertilization
Banana nutrient demand generally increases leaf stage increases. 18 to 40 banana leaf stage of growth and development is good or bad , on the yield and quality of banana play a decisive role , so this period is important fertilization of banana . This period can be divided into vegetative growth and flower bud in the late period of two re-applied ,pressure sprayers should be most concentrated in these two periods fertilizer application .
① in the late vegetative growth ( 18 to 29 leaf stage ) , that spring planting banana planting of 3 to 5 months after planting and summer perennial planting banana banana shoots sprouting given after 5-9 months. From the leaf look, just pumping by the middle of this period ( this time just out new leaves mostly curved shape like Huwei ) to enter the big leaf 1 to 2 . This period is at peak vegetative growth , nutrient requirements are very strong , most sensitive , banana plant growth and development was good or bad , by the abundance or shortage of fertilizer supply is determined , if this was re-applied fertilizer , banana plants to obtain sufficient nutrients, can long evening stem diameter banana leaf large strains for efficient assimilation , the accumulation of a large number of organic compounds, is to lay the material foundation for the next stage of flower bud .
② flower bud differentiation stage ( 30 to 40 leaf stage ) , ie after planting spring planting banana 5-7 months after planting and summer perennial planting banana banana shoots sprouting given after 9 to 11 months, from leaf look, this time by the pumping large leaves 1 to 2 to short round spade leaf , leaves began to turn away from the most sparse dense foliage pumping speed slowed ; see from the stem , pseudostem development to the most coarse , corms ( banana head ) begins on the exposed surface , weed killer sprayer was the altar -shaped ; see from suckers have entered suckers Sheng period . This period is in the reproductive growth bud differentiation process that requires a lot of nutrients for growth and development of young spike , spike big fruit in order to form long ear . According to overseas research , when the late vegetative stage into the flower bud , leaf nitrogen content plummeted , because then need to use a lot of nitrogen supply bud , when the roots absorb nitrogen from the soil can not meet the need , nitrogen had from the leaves , stems and other tissues and organs transferred over. Then re-applied fertilizer , can promote the blade for maximum assimilation , creating more organic matter for the panicle formation and growth and development.
① in the late vegetative growth ( 18 to 29 leaf stage ) , that spring planting banana planting of 3 to 5 months after planting and summer perennial planting banana banana shoots sprouting given after 5-9 months. From the leaf look, just pumping by the middle of this period ( this time just out new leaves mostly curved shape like Huwei ) to enter the big leaf 1 to 2 . This period is at peak vegetative growth , nutrient requirements are very strong , most sensitive , banana plant growth and development was good or bad , by the abundance or shortage of fertilizer supply is determined , if this was re-applied fertilizer , banana plants to obtain sufficient nutrients, can long evening stem diameter banana leaf large strains for efficient assimilation , the accumulation of a large number of organic compounds, is to lay the material foundation for the next stage of flower bud .
② flower bud differentiation stage ( 30 to 40 leaf stage ) , ie after planting spring planting banana 5-7 months after planting and summer perennial planting banana banana shoots sprouting given after 9 to 11 months, from leaf look, this time by the pumping large leaves 1 to 2 to short round spade leaf , leaves began to turn away from the most sparse dense foliage pumping speed slowed ; see from the stem , pseudostem development to the most coarse , corms ( banana head ) begins on the exposed surface , weed killer sprayer was the altar -shaped ; see from suckers have entered suckers Sheng period . This period is in the reproductive growth bud differentiation process that requires a lot of nutrients for growth and development of young spike , spike big fruit in order to form long ear . According to overseas research , when the late vegetative stage into the flower bud , leaf nitrogen content plummeted , because then need to use a lot of nitrogen supply bud , when the roots absorb nitrogen from the soil can not meet the need , nitrogen had from the leaves , stems and other tissues and organs transferred over. Then re-applied fertilizer , can promote the blade for maximum assimilation , creating more organic matter for the panicle formation and growth and development.
2013年10月23日星期三
What principles should pay attention to pesticide mixtures
Winter indoor studio disease -prone , spraying more often, many farmers to reduce the frequency of spraying , reduce labor intensity , each spraying pesticides are mixed . Pesticide many species prone to problems when mixed , require special attention. So, when mixed pesticides should pay attention to what ?
First, in order to accurately mixed pesticides .
Most farmers in pesticide mixtures , do not know which one should add agents. Sometimes to join the fertilizer, sometimes to join the EC, and sometimes to join the wettable powder, plus picked up what kind , which is unreasonable. The events that occur because of this precipitation .
Fertilizer and pesticide mixtures in order: fertilizer, wettable powders, suspensions , liquid , cream then added , each adding a stir that mix, then add the next .
Two is to add water after dosing, the secondary dilution.
Currently , there are many farmers when mixed pesticides is to join all pesticide sprayer , and then diluted in water , this approach is wrong.
Pesticide mixtures , not simply together against it. Mixed , you can add the first half bucket of water in the hand pump sprayers , add after the first pesticide mix ; Then, the rest of the pesticide with a plastic bottle be diluted , diluted and poured into a sprayer , mix order forth.
Third, use spray immediately after dispensing .
In many cases, farmers generally will be at home against a good agent , and then transported to shed spraying, when many agents have prepared several hours . Although just with the liquid does not respond when it does not mean you can be set free for a long time , or prone to react slowly , gradually reduce the efficacy .
In addition ,trigger sprayer farmers do not know when the pesticide can not be mixed , best first test a small area . Not only depends on the preparation when there is no response , but also to spend will not cause injury.
First, in order to accurately mixed pesticides .
Most farmers in pesticide mixtures , do not know which one should add agents. Sometimes to join the fertilizer, sometimes to join the EC, and sometimes to join the wettable powder, plus picked up what kind , which is unreasonable. The events that occur because of this precipitation .
Fertilizer and pesticide mixtures in order: fertilizer, wettable powders, suspensions , liquid , cream then added , each adding a stir that mix, then add the next .
Two is to add water after dosing, the secondary dilution.
Currently , there are many farmers when mixed pesticides is to join all pesticide sprayer , and then diluted in water , this approach is wrong.
Pesticide mixtures , not simply together against it. Mixed , you can add the first half bucket of water in the hand pump sprayers , add after the first pesticide mix ; Then, the rest of the pesticide with a plastic bottle be diluted , diluted and poured into a sprayer , mix order forth.
Third, use spray immediately after dispensing .
In many cases, farmers generally will be at home against a good agent , and then transported to shed spraying, when many agents have prepared several hours . Although just with the liquid does not respond when it does not mean you can be set free for a long time , or prone to react slowly , gradually reduce the efficacy .
In addition ,trigger sprayer farmers do not know when the pesticide can not be mixed , best first test a small area . Not only depends on the preparation when there is no response , but also to spend will not cause injury.
Sprayers often malfunction and troubleshooting
Sprayer will always encounter everyday use spray ineffective, switch leakage or screw fixed , leaking joints , etc. fails, then it should be how to troubleshoot them ?
Insufficient pressure sprayer atomization bad : If you flip the joystick when the spray more than 15 times , the barrel pressure has not reached the working pressure , farmers should first check whether the inlet valve Geqi been debris , resulting in insufficient air pressure affect the effect of atomization . Inlet valve can be removed , if there is , then the application rag scrub clean ; if the spray pressure is still insufficient , you should check the gas chamber cup without damage, if damaged , replace the new cup ; Ruoyin sealing joints ring is not installed or damaged cause leaks , you should install or replace the seals.
Not a liquid spray mist : nozzle body inclined holes are not blocked by dirt is causing spray mist one of the most common factors , farmers can remove the nozzle from the spray hole reverse blowing , the clogging dirt can be removed ; Ruoyin can open the cleaning nozzle clogged hand held sprayer spray holes, but can not use hard objects such as wire poke orifices to prevent perforations to expand , affecting spray quality ; Ruoyin casing filter is clogged or too small ball valve dirt Geqi , and cleaning of the filter should be cleaned Geqi ball dirt.
Switch leakage or screw fixed : If for switch cap is not tightened , you should tighten the switch cap ; Ruoyin switch core gasket leaks caused by wear and tear , replace gaskets. Switch screw fixed place mostly because of longer , switching core is etched and stick Pharmacy , farmers should switch on kerosene or diesel oil to soak for some time, and then removed and washed clean.
Leaking joints : Ruoyin connector is loose, tighten the nut should be ; Ruoyin washer is not flat or damaged , you should put the flat washer , or replace the gaskets.
Insufficient pressure sprayer atomization bad : If you flip the joystick when the spray more than 15 times , the barrel pressure has not reached the working pressure , farmers should first check whether the inlet valve Geqi been debris , resulting in insufficient air pressure affect the effect of atomization . Inlet valve can be removed , if there is , then the application rag scrub clean ; if the spray pressure is still insufficient , you should check the gas chamber cup without damage, if damaged , replace the new cup ; Ruoyin sealing joints ring is not installed or damaged cause leaks , you should install or replace the seals.
Not a liquid spray mist : nozzle body inclined holes are not blocked by dirt is causing spray mist one of the most common factors , farmers can remove the nozzle from the spray hole reverse blowing , the clogging dirt can be removed ; Ruoyin can open the cleaning nozzle clogged hand held sprayer spray holes, but can not use hard objects such as wire poke orifices to prevent perforations to expand , affecting spray quality ; Ruoyin casing filter is clogged or too small ball valve dirt Geqi , and cleaning of the filter should be cleaned Geqi ball dirt.
Switch leakage or screw fixed : If for switch cap is not tightened , you should tighten the switch cap ; Ruoyin switch core gasket leaks caused by wear and tear , replace gaskets. Switch screw fixed place mostly because of longer , switching core is etched and stick Pharmacy , farmers should switch on kerosene or diesel oil to soak for some time, and then removed and washed clean.
Leaking joints : Ruoyin connector is loose, tighten the nut should be ; Ruoyin washer is not flat or damaged , you should put the flat washer , or replace the gaskets.
2013年10月22日星期二
Causes and Countermeasures injury
With the development of science and technology , the scope and use of herbicides rapidly expanding area . Herbicide injury generation has become a universal phenomenon, not only caused serious loss of crop yield , but also bring social problems , has attracted attention of all levels of government .
Herbicide injury causes are many, home garden sprayer there is the nature of the herbicide itself ; have an adverse impact of climatic conditions ; sensitive period with crop fertility problems ; also does not regulate pesticide applicators problems posed . These problems are sometimes alone, sometimes overlap occurs , it is difficult to distinguish between major and minor . Because of space limitations articles without detail.
Basic Strategy : research workers should be developed more secure , easier to use herbicides ; manufacturers should be strictly according to the standard herbicide production of qualified products ; agricultural sprayers pesticide distribution , agricultural extension shall master the relevant knowledge of herbicides for farmers to strengthen technical guidance ; farmers and friends should also be actively learning technology knowledge to improve herbicide relevant knowledge and use of technology, so as to avoid or reduce the incidence of injury .
Herbicide injury causes are many, home garden sprayer there is the nature of the herbicide itself ; have an adverse impact of climatic conditions ; sensitive period with crop fertility problems ; also does not regulate pesticide applicators problems posed . These problems are sometimes alone, sometimes overlap occurs , it is difficult to distinguish between major and minor . Because of space limitations articles without detail.
Basic Strategy : research workers should be developed more secure , easier to use herbicides ; manufacturers should be strictly according to the standard herbicide production of qualified products ; agricultural sprayers pesticide distribution , agricultural extension shall master the relevant knowledge of herbicides for farmers to strengthen technical guidance ; farmers and friends should also be actively learning technology knowledge to improve herbicide relevant knowledge and use of technology, so as to avoid or reduce the incidence of injury .
Herbicide herbicide can choose to use the characteristics of the period
Chemical herbicides have different biological activity and herbicidal methods , therefore, must make good use of its features herbicides , in order to obtain the desired control effect .
Such as: acetochlor : amide herbicides to absorb coleoptile main control annual grass weeds and some broadleaf weeds in small grain seed , closed with a certain role . After sowing in wheat crop soil to stand needle enclosed use, the herbicidal effects influenced by soil moisture , drought conditions not conducive to the efficacy of the play , the herbicidal effect is poor, when the rain water in field after application when they prone to injury.
Isoproturon : herbicides , some of the main controlling grass weeds and some broadleaf weeds ( good effect on the chickweed ) , preemergence , postemergence can use , but early postemergence use works best. In wheat ( barley ) after sowing bud to 4 leaf stage . chemical sprayer Isoproturon efficacy of play is also affected by the impact of soil moisture , drought conditions using ineffective, postemergence than preemergence use .
Fenoxaprop , alkynyl oxalic acid , both foliar treatment agent , no closure effect, which can only be carried out after a homogeneous weed foliage treatment .
Tribenuron : herbicides , in order to absorb the main stem , the role of both closed , the main control broadleaf weeds in the 3-4 leaf stage of weed works best . Because of its dead grass is slower , in order to expand the spectrum herbicide , dead grass to improve the speed , multi- yl grass with ketones, MCPA ,2.4-D, Fluoroglycofen ether compound used .
Azole oxadiazon : leaf contact insecticide , no sucking conductivity, for the control of broadleaf weeds , when a large amount of wheat leaves burns phenomenon , dead grass fast, but weeding recur , and for chickweed , large nest vegetables less effective, with tribenuron , MCPA and other compound used in the 3-4 leaf stage of weeds best .
Glyphosate is the uptake and Herbicide . Can use its uptake, 5-7 days before the grain filling weed sprayer spraying , control wheat reed good effect, no influence on the grain filling .
Such as: acetochlor : amide herbicides to absorb coleoptile main control annual grass weeds and some broadleaf weeds in small grain seed , closed with a certain role . After sowing in wheat crop soil to stand needle enclosed use, the herbicidal effects influenced by soil moisture , drought conditions not conducive to the efficacy of the play , the herbicidal effect is poor, when the rain water in field after application when they prone to injury.
Isoproturon : herbicides , some of the main controlling grass weeds and some broadleaf weeds ( good effect on the chickweed ) , preemergence , postemergence can use , but early postemergence use works best. In wheat ( barley ) after sowing bud to 4 leaf stage . chemical sprayer Isoproturon efficacy of play is also affected by the impact of soil moisture , drought conditions using ineffective, postemergence than preemergence use .
Fenoxaprop , alkynyl oxalic acid , both foliar treatment agent , no closure effect, which can only be carried out after a homogeneous weed foliage treatment .
Tribenuron : herbicides , in order to absorb the main stem , the role of both closed , the main control broadleaf weeds in the 3-4 leaf stage of weed works best . Because of its dead grass is slower , in order to expand the spectrum herbicide , dead grass to improve the speed , multi- yl grass with ketones, MCPA ,2.4-D, Fluoroglycofen ether compound used .
Azole oxadiazon : leaf contact insecticide , no sucking conductivity, for the control of broadleaf weeds , when a large amount of wheat leaves burns phenomenon , dead grass fast, but weeding recur , and for chickweed , large nest vegetables less effective, with tribenuron , MCPA and other compound used in the 3-4 leaf stage of weeds best .
Glyphosate is the uptake and Herbicide . Can use its uptake, 5-7 days before the grain filling weed sprayer spraying , control wheat reed good effect, no influence on the grain filling .
2013年10月9日星期三
New pharmaceutical control of potato late blight
The role of the characteristics Hilfiger Metalaxyl Metalaxyl is effective in the body , there is a strong uptake,chemical sprayer chlorothalonil adding more effectively delaying the resistance generated expanded antibacterial spectrum . Hilfiger protective and therapeutic dual activity , not manganese ions and zinc ions , and mixed formulations than mancozeb better security ( Mancozeb and its mixed formulations can not be reused , MZ elements inhibit plant absorption of iron , iron disorder caused indeed ) , not prone to injury does not affect the fruit coloring ; suspension formulations , safer for the environment and crops ; Hilfiger can be used in most countries of pollution-free , green food production and high-value fruits and vegetables export base.
Hilfiger , suspension type , fineness of 1 micron , more through plant stomata , the absorption is strong, better than cymoxanil , dimethomorph , propionamide , Cyazofamid , oxazole bacteria copper, copper imidazole bacteria .
Hilfiger against Phytophthora infestans comprehensive prevention and treatment was significantly better than Phytophthora Ling ( fosetyl ) , enoyl Marlene , imidazole cycloheximide , Cyazofamid , oxazole bacteria copper, mancozeb, metalaxyl , garden sprayers backpack mixing agent fungicide metalaxyl . Is mancozeb and metalaxyl , metalaxyl mixtures replacement new product . Disease control for a long time are generally valid for 10 days.
Bactericidal spectrum: tyranny gas -borne diseases caused by downy mildew mesh downy mildew, late blight and fruit rot , downy mildew , such as soybean , grape downy mildew, downy mildew of lettuce , cucumber downy mildew, potato and tomato late disease . Against soil-borne diseases Pythium , downy mildew caused by Phytophthora genus and cataplexy , root rot and other such as lychee cream blight effective .
Hilfiger , suspension type , fineness of 1 micron , more through plant stomata , the absorption is strong, better than cymoxanil , dimethomorph , propionamide , Cyazofamid , oxazole bacteria copper, copper imidazole bacteria .
Hilfiger against Phytophthora infestans comprehensive prevention and treatment was significantly better than Phytophthora Ling ( fosetyl ) , enoyl Marlene , imidazole cycloheximide , Cyazofamid , oxazole bacteria copper, mancozeb, metalaxyl , garden sprayers backpack mixing agent fungicide metalaxyl . Is mancozeb and metalaxyl , metalaxyl mixtures replacement new product . Disease control for a long time are generally valid for 10 days.
Bactericidal spectrum: tyranny gas -borne diseases caused by downy mildew mesh downy mildew, late blight and fruit rot , downy mildew , such as soybean , grape downy mildew, downy mildew of lettuce , cucumber downy mildew, potato and tomato late disease . Against soil-borne diseases Pythium , downy mildew caused by Phytophthora genus and cataplexy , root rot and other such as lychee cream blight effective .
Surface diffusion of new pesticide use should be 3 days in advance
Insiders : compared to traditional pesticides , drops on governance will kill drops , drip that is, except the merits of such diffusion pesticides ?
Compared to conventional pesticides , these new pesticides are seven advantages:
First, efficient, low-residue . Because spread evenly, greatly improving the effective amount of pesticide per unit area , reducing pesticide use per unit area . The active component of this product easily degradable pesticides, almost no residual in nature .
Second, the diffusion speed and diffusion radius . Solves liquid dispersible solid forms exist to bring the rate of diffusion and diffusion radius due to poor trigger sprayers spraying center could easily lead to injury and even distribution of pesticide active ingredients not affect efficacy and phytotoxicity problems, it is the rate of diffusion up to 0.3 m / sec , the diffusion radius of up to 5-10 meters , compared with the same type of product , its diffusion rate can be increased 10-20 times , diffusion radius can be increased more than 10 times .
Three are easy to use , saving labor . Because it does not require the use of any equipment , as long as drops in the water, you can automatically spread uniformly throughout the whole field , suitable for rural farming weak labor situation . A labor day, can prevent more than 50 acres , greatly improving the efficiency of labor .
Four are protected from the weather . Rice growing stages often encountered even rainy weather, pesticide pressure sprayer spraying , encounter a rainy necessary complement Shi , this method applied , as long as the field does not drain water layer , you can maintain efficacy , no fill applied .
Five is to reduce pollution. Because these pesticides in the water just run , do not spray can reduce air pollution, pollution and human contamination grain for the production of green rice provided technical support .
Sixth, protection from predators , significant social benefits . Spray pesticide often killed together with the natural enemies of pests , use this drug only kill pests , does not kill predators , play a role in protection from predators .
Seven is the country's first , patent protection.
Compared to conventional pesticides , these new pesticides are seven advantages:
First, efficient, low-residue . Because spread evenly, greatly improving the effective amount of pesticide per unit area , reducing pesticide use per unit area . The active component of this product easily degradable pesticides, almost no residual in nature .
Second, the diffusion speed and diffusion radius . Solves liquid dispersible solid forms exist to bring the rate of diffusion and diffusion radius due to poor trigger sprayers spraying center could easily lead to injury and even distribution of pesticide active ingredients not affect efficacy and phytotoxicity problems, it is the rate of diffusion up to 0.3 m / sec , the diffusion radius of up to 5-10 meters , compared with the same type of product , its diffusion rate can be increased 10-20 times , diffusion radius can be increased more than 10 times .
Three are easy to use , saving labor . Because it does not require the use of any equipment , as long as drops in the water, you can automatically spread uniformly throughout the whole field , suitable for rural farming weak labor situation . A labor day, can prevent more than 50 acres , greatly improving the efficiency of labor .
Four are protected from the weather . Rice growing stages often encountered even rainy weather, pesticide pressure sprayer spraying , encounter a rainy necessary complement Shi , this method applied , as long as the field does not drain water layer , you can maintain efficacy , no fill applied .
Five is to reduce pollution. Because these pesticides in the water just run , do not spray can reduce air pollution, pollution and human contamination grain for the production of green rice provided technical support .
Sixth, protection from predators , significant social benefits . Spray pesticide often killed together with the natural enemies of pests , use this drug only kill pests , does not kill predators , play a role in protection from predators .
Seven is the country's first , patent protection.
2013年10月8日星期二
Late ripening cotton
Spraying methods, and pesticide use . To select no wind or breeze on a sunny day , 9:00 to 15:00 for spraying . The amount of pesticides , should be based on cotton growing , then the temperature and spraying period may be. For growth vigor , application period late, low temperatures and eager Tengcha cotton fields , application rates should be increased , but the amount of pesticide per acre not more than 200 ml ; Conversely, application rates should be reduced appropriately. In the Yellow River Basin , in early October if you need spraying of pesticides per acre with 40% ethephon 100 ml , 50 kg of water , diluted evenly spraying ; if in early October to mid- late early spraying, per acre medication 150 ml, water 60 kg diluted evenly spraying. The diluted liquid into the sprayer, aligned on a blue cotton boll , sprayer evenly from top to bottom , so that everyone who needs ripening bolls are Nianman liquid.
Ethephon spraying 40% and 2%, superphosphate mixed effect. Late spraying cotton 2% superphosphate dilution with promoting premature , anti premature aging, increase production, income significant role generally yield about 5%. Are acidic because of superphosphate fertilizer, mixed with acidic ethephon , not only does not affect the efficacy of ethephon , but also on ethephon synergism , it is worth promoting local conditions . The method is: first 1 kg superphosphate fertilizer quality with 50 to 60 kilograms of open water , filtered residue , then add the required ethephon per acre , mixed well immediately after spraying.
Use ethephon to note a few questions. First, ethephon are acidic pesticides, alkaline substances decompose encounter failure , so do not mix with alkaline pesticides . Preparation of a good ethephon diluent should not be stored , to do with the preparation with the use . Second, cotton spraying ethephon , if rainfall within 6 hours after the rain need to re- spraying . Third, before spraying , harvesting should boll bolls , boll boll avoid back sprayers spraying caused decline in quality . Fourth, a strong acidic liquid ethephon , the human body has a strong stimulating effect , work to do security. Skin glue solution , they should immediately wash with soap and rinse with water. Fifth , do not outperform , buy counterfeit drugs . In recent years, there have been many kinds on the market crops ripening agent products, which are mostly agricultural administrative department for approval without registration , you can not use inferior products . Farmers should be through formal channels to purchase regular manufacturers ethephon pesticide use .
Ethephon spraying 40% and 2%, superphosphate mixed effect. Late spraying cotton 2% superphosphate dilution with promoting premature , anti premature aging, increase production, income significant role generally yield about 5%. Are acidic because of superphosphate fertilizer, mixed with acidic ethephon , not only does not affect the efficacy of ethephon , but also on ethephon synergism , it is worth promoting local conditions . The method is: first 1 kg superphosphate fertilizer quality with 50 to 60 kilograms of open water , filtered residue , then add the required ethephon per acre , mixed well immediately after spraying.
Use ethephon to note a few questions. First, ethephon are acidic pesticides, alkaline substances decompose encounter failure , so do not mix with alkaline pesticides . Preparation of a good ethephon diluent should not be stored , to do with the preparation with the use . Second, cotton spraying ethephon , if rainfall within 6 hours after the rain need to re- spraying . Third, before spraying , harvesting should boll bolls , boll boll avoid back sprayers spraying caused decline in quality . Fourth, a strong acidic liquid ethephon , the human body has a strong stimulating effect , work to do security. Skin glue solution , they should immediately wash with soap and rinse with water. Fifth , do not outperform , buy counterfeit drugs . In recent years, there have been many kinds on the market crops ripening agent products, which are mostly agricultural administrative department for approval without registration , you can not use inferior products . Farmers should be through formal channels to purchase regular manufacturers ethephon pesticide use .
How to improve the utilization of pesticides
Want to improve the utilization of pesticides , it is necessary to improve the quality of the manual spraying machine , spraying parts single change the status quo, to promote the upgrading of manual sprayers
Spray atomization quality is the determining factor , directly affect the deposition of pesticide on crops distribution . Droplet distribution density is related to the control effect is an important factor. The same amount of liquid, if the droplet size by half , and the resulting 8 -fold increase the number of droplets . Led the establishment of the National Agricultural Center in Shandong Wish Plant Protection Machinery Co. , development and production of the " Guardian " card WS-16 Type Sprayer , won the national key new product certificate and four patents, and has been the first to get "3C" certification, becoming the ideal replacement of manual sprayers varieties .
The implementation of low volume hand pump sprayers spraying technology to reduce the amount of liquid present Mushi
Crop leaf surface can be attached pesticide droplets is limited , when spray volume exceeds a certain limit , the leaves on the tiny droplets will agglomerate into large droplets and rolled , the loss , but to make the blade attached to the drastically reduced the amount of pesticides . Spray volume in developed countries are generally controlled at 100 per hectare - 300 l range , less spray volume per unit area of 1/3 , and thus the loss was minimal, pesticide utilization is higher.
Spray atomization quality is the determining factor , directly affect the deposition of pesticide on crops distribution . Droplet distribution density is related to the control effect is an important factor. The same amount of liquid, if the droplet size by half , and the resulting 8 -fold increase the number of droplets . Led the establishment of the National Agricultural Center in Shandong Wish Plant Protection Machinery Co. , development and production of the " Guardian " card WS-16 Type Sprayer , won the national key new product certificate and four patents, and has been the first to get "3C" certification, becoming the ideal replacement of manual sprayers varieties .
The implementation of low volume hand pump sprayers spraying technology to reduce the amount of liquid present Mushi
Crop leaf surface can be attached pesticide droplets is limited , when spray volume exceeds a certain limit , the leaves on the tiny droplets will agglomerate into large droplets and rolled , the loss , but to make the blade attached to the drastically reduced the amount of pesticides . Spray volume in developed countries are generally controlled at 100 per hectare - 300 l range , less spray volume per unit area of 1/3 , and thus the loss was minimal, pesticide utilization is higher.
2013年10月7日星期一
Pay attention to the effect of improving medication safety Flower
1 dilution powder into a paste with water , and then multiple dilution ; cream , liquid in the flower sprayer should be loaded within 1/ 4 of the water and then poured into drug shake, and pour into the amount of water ; powder, emulsion and manure mixed , should be dissolved powder , adding 80 times of water , then mixed with cream , and finally mixed with fertilizer , red enough water spraying. A variety of pharmaceutical and fertilizer mix , mixed with the use to be with , do not keep well , so as not to reduce the efficacy.
(2) the general dilution dilution 500-1500 times , pest prevention desirable when the minimum concentration ; pest control young desirability moderate concentrations ; peak and kill pests older , crusty pests , should take the maximum concentration . In floriculture , often is the same pest hazards, so sterilization, insecticide, fertilizer should simultaneously. But the pH of different agents can not be mixed fertilizers , and the mixture can not be more than three kinds . The mixing concentration of : barrel of water sterilizing agent 25-30 g , 20-25 g of pesticides , fertilizers and 50 grams.
3 application time and method of 17:00 ( positive leaves holes open ) spraying absorb the best, and no sunburn , can reduce injury. Less easily decomposed in light use efficiency Zineb , Fenaminosulf , phoxim and other agents should be carried out on a cloudy day or in the evening , perfume sprayer when it rains it rains before or not spraying . Spraying a mist as well, and the entire plant to be sprayed .
(2) the general dilution dilution 500-1500 times , pest prevention desirable when the minimum concentration ; pest control young desirability moderate concentrations ; peak and kill pests older , crusty pests , should take the maximum concentration . In floriculture , often is the same pest hazards, so sterilization, insecticide, fertilizer should simultaneously. But the pH of different agents can not be mixed fertilizers , and the mixture can not be more than three kinds . The mixing concentration of : barrel of water sterilizing agent 25-30 g , 20-25 g of pesticides , fertilizers and 50 grams.
3 application time and method of 17:00 ( positive leaves holes open ) spraying absorb the best, and no sunburn , can reduce injury. Less easily decomposed in light use efficiency Zineb , Fenaminosulf , phoxim and other agents should be carried out on a cloudy day or in the evening , perfume sprayer when it rains it rains before or not spraying . Spraying a mist as well, and the entire plant to be sprayed .
Science floriculture reduce medication
Through tillage , can eliminate some pests , pests and diseases is not conducive to the formation of the conditions . low pressure sprayer At the same time , we should improve the ability of flowers resistant to insect pests , such as for rural clean processing plant debris , reduce pest sources , rational close planting, increase greenhouse or shed of air and light , and remove waterlogging , reduce field humidity , scientific formula fertilization , so that the flowers robust growth, improve its resistance to diseases and pests .
Strengthen physical control
In order to avoid the generation of pest resistance , should try to choose physical control . For example, hanging yellow sticky boards can be used to trap and kill aphids and leaf miner , hanging silver shop in the field aphid repellent membrane , while increasing light intensity . Advantage of the many nocturnal insects phototaxis characteristics, hand sprayers the light trapping , predator trapping and other methods to eliminate pests, insect nets can also be used to reduce the probability of occurrence of pests .
Strengthen physical control
In order to avoid the generation of pest resistance , should try to choose physical control . For example, hanging yellow sticky boards can be used to trap and kill aphids and leaf miner , hanging silver shop in the field aphid repellent membrane , while increasing light intensity . Advantage of the many nocturnal insects phototaxis characteristics, hand sprayers the light trapping , predator trapping and other methods to eliminate pests, insect nets can also be used to reduce the probability of occurrence of pests .
订阅：
博文 (Atom)