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In terms of climatic factors, the low temperature and rainy from May to early June, the drought in the middle and late June, and the heavy rain in the middle of July caused the overall cotton growth period to be delayed by about 10 days or more. At the same time, it exposed the aging and fragility of cottonfield facilities and could not withstand the test of long-term rainfall and continuous drought. From a management point of view, many farmers still do not recognize the symptoms of lack of potassium fertilizer and boron fertilizer, and do not fully grasp the standards of chemical regulation, and there is still a long way to go with scientific fertilizers and water. Faced with the rare disasters and hidden disasters in cotton production and the mistakes in management in recent years, it is necessary to correctly summarize the experience of cotton disaster prevention and production increase, establish the confidence that the disaster will win, scientifically manage the fertilizer and water, and seize the cotton harvest after the disaster.
Do not give up, strengthen post-disaster management In addition to the growth point dead and irretrievable cotton seedlings need to be ploughed and replanted to Other crops, generally affected cotton farmers should not be anxious, not discouraged, do not give up. Because of the locust disasters in 1982, 1983, 1991, and 1998, the farmers who insisted on disaster relief had a bumper harvest. Because cotton has a strong ability to self-regulate, as long as conditions are created, it can quickly accelerate the return to childbearing. There are still 30 days for the effective bud period, and 50 days for the effective flowering period. Strengthen management and have time to catch up.
Promote new roots, pay attention to conventional measures. First, grab the clear water filter water to make the rain ditch dry; second, cultivate the loose soil, break the cotton field soil compaction; third, cover the cotton field, grab the film, smash the soil, One to prevent premature aging, the second to prevent lodging. By using these conventional measures, new roots and new leaves can be promoted to show new vitality.
Differentiating the seedlings and classifying the fertilizers for the delayed emergence of Shaolei without flowers should be based on the application of nitrogen fertilizer, about 10 kg per mu of urea, or about 25 kg of ammonium bicarbonate; for cotton seedlings that have been flowering and ringing, The application of high-content compound fertilizer is 15~20 kg per mu; for cotton fields with severe potassium deficiency, 15 kg of potassium chloride or potassium sulfate is applied per mu; if about 3 peaches per plant have been formed, urea should be applied. Mainly, after planting about 10 peaches per plant, 10-15 kg of urea should be applied per acre. In the case of boron-deficient cotton fields, it is necessary to combine spray and insect-proof, mixed spray speed Le Bor or other high-content boron fertilizer 3 times. In general, the affected cotton seedlings should be promoted. A small number of prosperous cotton seedlings should be sprayed with shrinking or promoting the main. Stick to a small number of times, before the light and then heavy. In addition, we must pay attention to the prevention and control of the third generation of blind cockroaches. Due to the delay in the growth period of cotton, all management measures can be delayed accordingly.
Author: Zhang Yuhong Source: Daily farmer
Do not give up, strengthen post-disaster management In addition to the growth point dead and irretrievable cotton seedlings need to be ploughed and replanted to Other crops, generally affected cotton farmers should not be anxious, not discouraged, do not give up. Because of the locust disasters in 1982, 1983, 1991, and 1998, the farmers who insisted on disaster relief had a bumper harvest. Because cotton has a strong ability to self-regulate, as long as conditions are created, it can quickly accelerate the return to childbearing. There are still 30 days for the effective bud period, and 50 days for the effective flowering period. Strengthen management and have time to catch up.
Promote new roots, pay attention to conventional measures. First, grab the clear water filter water to make the rain ditch dry; second, cultivate the loose soil, break the cotton field soil compaction; third, cover the cotton field, grab the film, smash the soil, One to prevent premature aging, the second to prevent lodging. By using these conventional measures, new roots and new leaves can be promoted to show new vitality.
Differentiating the seedlings and classifying the fertilizers for the delayed emergence of Shaolei without flowers should be based on the application of nitrogen fertilizer, about 10 kg per mu of urea, or about 25 kg of ammonium bicarbonate; for cotton seedlings that have been flowering and ringing, The application of high-content compound fertilizer is 15~20 kg per mu; for cotton fields with severe potassium deficiency, 15 kg of potassium chloride or potassium sulfate is applied per mu; if about 3 peaches per plant have been formed, urea should be applied. Mainly, after planting about 10 peaches per plant, 10-15 kg of urea should be applied per acre. In the case of boron-deficient cotton fields, it is necessary to combine spray and insect-proof, mixed spray speed Le Bor or other high-content boron fertilizer 3 times. In general, the affected cotton seedlings should be promoted. A small number of prosperous cotton seedlings should be sprayed with shrinking or promoting the main. Stick to a small number of times, before the light and then heavy. In addition, we must pay attention to the prevention and control of the third generation of blind cockroaches. Due to the delay in the growth period of cotton, all management measures can be delayed accordingly.
Author: Zhang Yuhong Source: Daily farmer
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