Due to the impact of typhoon and rain, many areas of late rice seedlings are overgrown, and the management of improper application of nitrogen fertilizers makes the seedlings prematurely mad and long-term, the stems and leaves are soft, the leaves are drooping and shaded, and the light transmission performance is extremely poor. The seedlings cause serious disorders. If it is not timely prevented, it will lead to serious occurrence of pests and diseases, and the seed setting rate will be seriously degraded. There will be a phenomenon of “good seedlings and no good valleysâ€, resulting in low yield, inefficiency and even loss. The timely remedy has the following four points:
First, the application of lime, grass and ash stalks and strong seedlings. The use of 15 kg of quicklime plus 80 kg of grass ash in the morning leaves and dew is not dry, which has a good effect on promoting the stability of stems and leaves and preventing pests and diseases.
Second, the drainage exposed, the control is invalid, and the rate of adulthood is increased. By timely opening the three ditch (cavity, lumbar ditch, and furrow) to drain the exposed fields, control the ineffective tillering and enhance the ventilation and light transmission, prevent the pests from falling and spurting to promote new roots, and improve the rate of seedling formation. For the severely mad long-leaf-colored green fields, the field should be sun-dried to the field for cracking, the white roots are exposed, the leaves are faded and erect, and the horses are flooded in the fields to facilitate high yield.
Third, the application of quick-acting phosphorus and potassium fertilizer, strong stalks to promote roots and promote health. The mad long-grass seedlings should be added with quick-acting potassium chloride, and 8 kg of calcium and magnesium phosphate fertilizer can be used to adjust the physiological structure of rice in a timely manner, so as to achieve rapid growth and strong stalks to promote roots, thick leaves, improve light effect, and increase yield.
Fourth, timely control of pests and diseases, cold damage, and improve plant robustness. Leaf blast, panicle neck, sheath blight and thin strip disease pose a greater threat to the larvae. Insect pests include stem borer, rice planthopper, and rice leaf roller, so it is necessary to take comprehensive control measures and prevent pesticides. In addition, this year's autumn and autumn background storms have increased significantly, and it is not negligible to strengthen the anti-autumn cold damage. It is necessary to take corresponding countermeasures to prevent and ensure safe harvesting.
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