Mainly organic fertilizer, full base fertilizer. During soil preparation, 2000-3000 kilograms of farmyard manure per acre is applied to fully balance cotton nutrition, improve root absorption and fertility, activate soil, prevent compaction, and maintain ecological balance in the rhizosphere. Reduce the application of diammonium phosphate. Nitrogen, phosphorus and potassium ternary compound fertilizers should be used, or special formula fertilizers for local cotton should be used. Nine, phosphorus and potassium 15-15-15 compound fertilizers of 40 kg can also be used as base fertilizer. Adding 2 kg of Luhong No. 1 powder to other compound fertilizers can improve the resistance of cotton to blight, verticillium wilt, and blight, and effectively solve the problem of dead seedlings. 100 kg of cake fertilizer and 40-50 kg of biological fertilizer are used as base fertilizer per acre. When the base fertilizer is used, organic fertilizer, cake fertilizer, fungus fertilizer and 2/3 compound fertilizer are turned into the ground, and 1/3 of the compound fertilizer is applied to the surface when the land is used, which is favorable to the utilization of nutrients at the seedling stage of the cotton. Stable application of fertilizer. The bud fertilizer can be applied with a small amount of compound fertilizer, generally 8 to 10 kilograms per mu, to achieve stable growth. Reapply flower bell fertilizer. More than 80% of the nutrients needed by cotton are in the boll stage, so it is necessary to re-fertilize and use 20 kg of urea per mu for watering to meet the needs of cotton for nutrients. Apply cover top fertilizer. Premature aging phenomenon was found in the top of the peach in the autumn peach, to apply 8 to 10 kg of urea water application, to prevent premature aging. Clever foliar fertilizer. In order to meet the needs of cotton for medium and trace elements, especially for boron, zinc and other elements, to reduce the deficiency of the disease, we should choose to apply foliar fertilizer after the growth of cotton, can use Lu Hong Hui Hui dew fertilizer. After budding period, the special foliar fertilizer used by Luhong Jinkelao was sprayed once every 7 days, and even sprayed 3 to 4 times, which can increase the weight of the boll, promote growth, reduce the phenomenon of falling bells, and significantly increase production. Limbs Rehabilitation Device,Rehabilitation Instrument,Rehabilitation Training Bed,Electric Rehabilitation Bed Puyang Degren Medical Equipment Co., Ltd. , https://www.degrenyuwei.com