The rainy season is sufficient for the fertilizer to exert fertilizer effect, which may lead to long or mad cotton plants. How to prevent cotton (19875, -15.00, -0.08%) from being crazy, here are some suggestions:
1. Wipe off axillary buds and topping in time, break and inhibit the growth of apical growth, reduce the consumption of nutrients by the upper effectless branches, and promote the development of cotton bolls. Generally topping in the middle and late July.
2. Control the fertilizer and water, and apply less or no fertilizer to the cotton field with sufficient base fertilizer and large amount of seedling fertilizer application, and pay attention to clearing the ditch drainage to prevent waterlogging.
3. Timely chemical control spray acetaminophen or auxin, improve plant shape, and more buds. At the initial flowering stage, use 6 to 8 ml of supplemental supplement or 1.5 to 2 g of ketamine, and add 25 to 28 kg of water for spraying. In the flowering period (at the end of July and the beginning of August), use 3 grams of ketamine per acre, add 30-40 kg of water. Spray. It is usually sprayed after 3 pm or before 10 am to avoid evaporation of the liquid with high temperature. After spraying, it should be replenished in case of heavy rain, but the dosage should be halved.
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