Cotton drought relief experience

1, cotton encounters. Cotton locust plagues generally occur from June to July, affecting the area of ​​insurance coverage and causing the cotton to stagnate. The corresponding technologies are: (1) Robbing and squatting, and keeping the old seedlings. As long as the growth point does not die, the cotton will be able to resume growth after the row. Old seedlings should not be easily plowed. The sooner the drainage, the more active the disaster relief. (2) Injury due to heavy rain, big fertilizer supplement. The loss of manure in the cotton fields after the flood season was large. One had to catch up with the quick-acting fertilizers in the rain, and the second was to increase the number and quantity of manure, and 667 m2 of urea was applied to 15-20 kg. After a lot of peaches, the amount of topdressing should be increased. (3) loose soil training, ventilation and loose wet. After the rain, the cotton field is severely knotted. After grabbing topdressing, it is necessary to cultivate the soil as soon as possible. One can increase the permeability, the second can promote new roots, and the third can prevent the cotton plants from lodging. 2, cotton drought. Drought inhibits fertility in cotton, causing premature aging and reducing yields. Corresponding technologies are: (1) Fertilization with water, trickle irrigation. (2) Spray fertilizer to adjust temperature and reduce shedding. Every 667 square meters of cotton special fertilizer 100 grams plus urea 400 grams, spray 30-40 kg of water. One can ease the drought and reduce the temperature; the second can supplement nutrients and maintain normal growth; and the third can reduce the loss of 5-10% of bolls. Spray fertilizer 2-3 times according to drought. China Agricultural Network Editor

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