After the flood, the cotton field

After the rainstorm, the cotton field should be dug and drained, quickly remove the clear water, reduce the waterlogging in the cotton field, not only to clear the water, but more importantly to reduce the groundwater level and soil water content.

Scientific fertilization

Waterlogging control refers to three types of seedlings and cotton fields that are flooded for more than 36 hours. The cotton field does not form water control. During the actual water control period, these cotton fields should be applied with quick-acting nitrogen fertilizer, and 10 kg of urea per mu should be applied. Diammonium phosphate 15 kg.

Rainy hair style is currently a key period for the transformation of vegetative growth to reproductive growth. Long-term heavy rain inhibits the reproductive growth of cotton. The vegetative growth of cotton is too prosperous, forming water, cotton plants are long, and buds are severely shed. For water-based cotton, it is necessary to reduce the quick-acting nitrogen fertilizer, and spray the Huahua No. 3 cotton topping agent in time to make the top of the cotton nutrient return to the development of the cotton peach, weakening the top advantage until the top stops growing. To achieve the purpose of topping. When used together with a small amount of ketamine, it can effectively improve the canopy permeability of the cotton field, prevent premature aging, increase the effective boll weight, increase the yield, and increase the efficiency.

The root dressing and external flooding caused the cotton root system to be seriously damaged, and the nutrient absorption was blocked. Through the root dressing, the cotton nutrients could be quickly supplemented, the cotton resistance to waterlogging and the cotton buds could be reduced. Specific methods: 200 grams of urea per acre, 100 grams of potassium dihydrogen phosphate, 100 grams of boron fertilizer combined with cotton Zhuang Ti Ling 2 tablets with 50 kg of water for foliar spray, foliar spray when paying attention to cloudy or sunny In the morning and evening, the concentration must not be too large.

After a long period of flooding, the cultivating and cultivating of the cotton is very weak. If the lodging is serious, it must be quickly corrected and cultivated. When the soil moisture is allowed, the cultivating and deep cultivation are carried out quickly. Inter-cultivation is good for breaking the soil compaction, promoting root respiration and accelerating root growth.

Prevention and treatment of diseases and insects timely control of the third generation of cotton bollworm, second generation of red bollworm, corn borer, aphids, red spiders and so on. Control cotton blight and prevent cotton bell disease in advance. (Zhong Wenxin)