Strong winds and heavy rains cause the corn to fall, affecting ventilation and light transmission, and pollination is poor. Measures should be taken in a timely manner to try to reduce losses.
1. Artificial straightening: Immediately after the lodging of the corn , the artificial straightening should be carried out. When the straightening is straightened, it is necessary to prevent the broken and increase the root injury. One person can support one person and raise the soil to the root. It is best to help after the fall, once delayed, it is not only difficult to raise and increase losses. Plants that are not seriously lodging can generally stand upright due to their strong ability to adjust, and do not need secondary support.
2, fertilizer and water regulation: the poor photosynthesis of the lodging of corn, physiological functions are disturbed, affecting the filling and fruiting. For a field that only chases 1 fat, you can chase 1 time. Plants can also be sprayed with special fertilizers such as potassium dihydrogen phosphate, which is beneficial to increase the seed setting rate and reduce the baldness.
3, pest control: the disease often occurs after the lodging of corn. Leaf diseases such as corn size spot disease, rust, etc., water-stained blue-gray spots appear in the early stage of the disease, and can be sprayed with 50% carbendazim WP 500 times or 75% chlorothalonil WP 300 times. Spray once every 7-10 days, even spray 2-3 times. Use 15-20 kg of lime powder per acre and mix 50 kg of fine soil to spread the field evenly, which can effectively prevent the occurrence and spread of diseases. To control corn mash, when the corn is flared, use Sutelling (Bacillus thuringiensis) for 15 kg of fine sand in the leaves or 200 g of 3% phoxim granules for 15 kg of fine sand.
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