After the rain is clear, the young leaves of the cotton seedlings are prone to wilting. The main reason is that after the waterlogging, the oxygen in the roots of cotton is insufficient, the roots suffocate, the longer the suffocation time, the more severe the damage of the root system. Of course, the cause of wilting is also the over-dressing of excess fertilizer before the rain, which increases the concentration of fertilizer solution and leads to reverse osmosis of cotton leaves. There are also two films used to remove cotton film too late, the roots of the cotton is not deep, the absorption of fertilizer and water function is restricted.
In order to restore this type of cotton to normal growth and development as soon as possible, the following measures should be taken in management:
First, focus on time, and concentrate on labor to grab clear water;
Second, quickly clear the ditch filtration dark water;
Third, spray fast 10% sl, 20 ml per mu watered 50 kg;
4. Spray Huimanfeng Active Liquid Fertilizer, watering 40-50 kilograms per mu;
Fifth, topdressing urea, 15 kg per mu, and with potassium fertilizer 5-7.5 kg. At the same time, combined with spraying, spraying fertilizer with quick-acting boron fertilizer, 30 grams per mu, watered 25 kg.
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