August to prevent premature aging of cotton
2021-06-28 05:03:39
After entering August, the growth of cotton gradually became slower and the root absorption capacity gradually weakened. This period of field management is mainly to prevent greediness, promote early maturing, prevent premature decay, and to adopt corresponding effective measures according to different cotton fields.
First, make up the fertilizer for the thin ground, the growing trend of weak deferring premature aging cotton field to make up timely fertilizer, fertilizer should not be ditching top dressing, so as not to cause root cause premature aging. It is possible to spray 2% urea plus 0.3% potassium dihydrogen phosphate solution after 10 o'clock in the morning and after 4 o'clock in the sunny day; in the prosperous cotton field, spraying 3% of the superphosphate solution can promote its early maturation. Use 50 kilograms of liquid per acre, spray once every 5 days, and spray 3 times.
Second, watering and watering can prevent a large amount of shedding of the bolls due to insufficient soil moisture. In particular, the soil is thin and weak, and there are cotton fields with declining trend of premature fertility. For ground fertilizer and cotton plants, the land may grow well late. When watering, avoid hot noon so as not to hurt the roots. In case of heavy rain, trenches should be drained in time.
Third, the pruning of cotton fields with a tendency to premature aging can be pruned rough or not pruning; for strong growth, closed fields, cotton fields with late-maturing phenomenon, to fine pruning and promote early maturing. In addition, we must promptly prevent and treat pests and diseases.
First, make up the fertilizer for the thin ground, the growing trend of weak deferring premature aging cotton field to make up timely fertilizer, fertilizer should not be ditching top dressing, so as not to cause root cause premature aging. It is possible to spray 2% urea plus 0.3% potassium dihydrogen phosphate solution after 10 o'clock in the morning and after 4 o'clock in the sunny day; in the prosperous cotton field, spraying 3% of the superphosphate solution can promote its early maturation. Use 50 kilograms of liquid per acre, spray once every 5 days, and spray 3 times.
Second, watering and watering can prevent a large amount of shedding of the bolls due to insufficient soil moisture. In particular, the soil is thin and weak, and there are cotton fields with declining trend of premature fertility. For ground fertilizer and cotton plants, the land may grow well late. When watering, avoid hot noon so as not to hurt the roots. In case of heavy rain, trenches should be drained in time.
Third, the pruning of cotton fields with a tendency to premature aging can be pruned rough or not pruning; for strong growth, closed fields, cotton fields with late-maturing phenomenon, to fine pruning and promote early maturing. In addition, we must promptly prevent and treat pests and diseases.
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