2013年9月17日星期二

Expert Weapon scientific and technological means to reduce disaster losses

Five Keys rice disaster management

Most of the current rice at booting to flowering stage, and ratoon rice at tillering stage. Therefore, flooded after early, mid-season manage to remember five points.

First, as soon as drainage. In the vegetative growth of rice, the most intolerant of flooded rice can cause death. Timely drainage, as soon as possible so that the tip of rice out of the water. As waterlogged paddy more fear of drought, if on cloudy days, can take a one-time drainage; case scorching hot weather, you should first make rice plants exposed upper surface of the water, then drain the rice water in the afternoon.

Second Dingmiao wash Miao Miao Fu. Strains of rice seedlings by hand propped the lodging and earth given root. As long as the ground is not completely lodging rice, can be put into a small bundle through artificial ways to save. Can also be used with a nylon rope tied weeds. Disaster is often attached to a layer of rice leaves sediment will affect photosynthesis. Subject Sunrise, leaves white, can be used on the blades pull the rope, or water power sprayer spray with spray, hydroplaning rice plants silt and other debris.

Third, pest and disease control. After the flood, many leaves appear wounds, the most prone to bacterial leaf blight, rice blast and other pests, blight available MBAMT WP, WP 1 leaf blight spray watered; blast control can be used tricyclic azole WP; or 45% blast Trane colloidal suspension agent.

Four is reasonable irrigation. After the rice fields flooded deepwater management should not try to take the moist management, adopt Dry wet irrigation methods, exposed mud promote root, garden sprayer backpack lower humidity field, the possibility of reducing the incidence of rice. Both to ensure the rice plant water needs, but also to ensure soil aeration, and promote root Upper Nodes occur quantity, strong vitality. Filling late, taking care to avoid premature shutoff.

Five is the importance of potash fertilizer application. Potash can enhance lodging resistance, but also enhance resistance to disease and improving rice paddy seed rate. Disaster must pay attention to the combined application of potash. 7.5 kg of potassium chloride can be applied per acre to 10 kilograms.

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