Application of microbial Fertilizer to Cotton can prevent Disease
The purpose of chemical fertilizer is to supply cotton nutrients, and in addition to providing nutrients to cotton, the application of microbial fertilizer is important to increase the beneficial microflora of the soil in the root layer, improve the soil microflora and improve the aggregate structure. adjust the soil physical, biological and chemical properties to the optimal proportion, so as to improve soil fertility. The application of microbial fertilizer to cotton is divided into seedling fertilizer, base fertilizer and topdressing fertilizer. When using the cotton seedling transplanting method to prepare the seedling nutrient soil, 5 kg of bio-organic fertilizer can be added to every cubic meter of nutrient soil, which is beneficial to prevent disease and strengthen seedlings. Base fertilizer in cotton fields with certain fertilizer conservation capacity, 50 kg of bio-organic fertilizer per mu is used as base fertilizer. Topdressing cotton at flower and boll stage with black plus white biological fertilizer 20Mu 25kg topdressing. The cotton fields with poor soil fertility and sandy texture should increase the amount of fertilizer application. In addition, in the middle and later stage of cotton growth, 1 kg of microbial agent per mu, 20 kg of water, stirring evenly and standing for 1 hour, and the supernatant combined with foliar spraying of zinc and boron fertilizer can promote cotton plant growth and enhance cotton plant resistance. reduce the occurrence and harm of Verticillium wilt.
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Key points of Cotton Field Management
Water and fertilizer are the two most active factors in cotton production measures, and the regulation, promotion and control of water and fertilizer play a very important role in determining cotton yield. But some cotton farmers are impractical, in order to pursue higher cotton yield and higher cotton planting efficiency, blindly irrigate and fertilize, resulting in cotton yield decline, and even some cotton field water.
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Whole process Chemical Control Technology of Cotton
Cotton has unlimited growth habits, and vegetative growth and reproductive growth overlap at the same time. If fertilizer and water are not properly managed or climatic conditions change, cotton plants are very prone to overgrowth or greedy green late maturity, which is very disadvantageous to the realization of high and stable cotton yield. This problem is generally solved by chemical regulation. At present, it should be.
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