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 .
02
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 .
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