What preparations should be made before cotton is sown?

What to do before planting cotton? Is there any net friend to help introduce? The planting network sorted out the preparatory work that needs to be done before cotton sowing, listed in detail below for netizens 'reference. Prepare a, store cotton field ground: Due to less precipitation in winter and spring and dry climate, soil moisture in cotton fields prepared for sowing is generally poor. Therefore, cotton sowing before the timely soil moisture, pay attention to moisture conservation, to ensure that the soil moisture is sufficient, mouth moisture is good, the upper empty and the lower solid. Cotton fields that have been irrigated in winter and have good moisture content should be harrowed to preserve moisture or covered with plastic film to reduce moisture evaporation; cotton fields with poor moisture content should be irrigated in time to expand the area for moisture cultivation. If the cotton is watered 20 days before sowing, sprinkler irrigation can be adopted, and then the soil moisture can be preserved by ploughing and harrowing for sowing; if the cotton is watered near sowing, small water can be poured, and the soil moisture can be harrowed in time after receiving soil moisture from top to bottom, and sowing can be carried out later. Preparation 2. Preparation of cotton seeds: According to the production practice and test results in recent years, it is appropriate to select excellent and high-yield varieties in cotton field, such as Kaimian 5, Zhongmiansuo 23 and Luyanmian 21. Zhongzhumian No. 2 was suitable for planting in the disease area, especially in the seriously ill field. Commodity cotton seeds should be selected from high-quality seeds with standard identification, good purity, high germination rate and guaranteed quality supplied by regular seed departments. The seed purity after coating treatment shall not be lower than 95%, the purity shall not be lower than 99%, and the germination rate shall be above 85%. Select self-retaining seed, before sowing to carry out sun seed, in order to promote cotton seed ripening, improve germination rate, enhance germination potential. After sunning seeds, seed selection should be carefully carried out to leave plump, healthy and uniform seeds. Soaking seeds in warm soup and dressing seeds with chemicals should be carried out before sowing. Pesticide seed dressing advocates mixing seed dressing with pesticides and fungicides by mixing pesticides first and then fungicides. Insecticide 70% Gao Qiao is better, 10 grams of medicine, 1.5~2 kg of water, soaking 2 kg of cotton seeds. 50% Dixon or 70% Thiophanate-methyl or 50% Carbendazim can be selected as fungicide, and the dosage is 0.3% of the seed dosage. Preparation III. Applying sufficient base fertilizer to cotton fields: Fertilization before sowing is very important to promote early emergence and normal development of cotton seedlings. According to the scientific formula of increasing organic fertilizer, stabilizing nitrogen and phosphorus, supplementing potassium trace (boron and zinc), balanced fertilization should be carried out. Generally, 2500~3000 kg of high-quality farm manure or 50~75 kg of cake fertilizer, 10~15 kg of urea, 20~25 kg of diammonium and 25 kg of silicon-calcium-magnesium potassium fertilizer are applied per mu. Preparation IV. Leveling of cotton field: Combined with fertilization, further improve the land, the quality of land preparation requires that the upper part is empty and the lower part is solid, so as to achieve uniformity.(neat planning, plowing, harrowing and other mechanical operations can not be left blank edge or middle), flat (After ploughing, harrowing, manual leveling and other operations, the surface of the soil is flat, and there are no ridges and obvious pits on the surface of the soil), loose (the cultivated layer of the soil is loose, the upper part is empty and the lower part is solid, the soil is finely divided, and there are no soil lumps with a diameter of more than 2 cm on the surface), moisture (the soil should be ploughed when the soil moisture is appropriate, at this time, the soil is loose, the soil preparation is easy, and the soil can maintain appropriate moisture content during sowing, which is conducive to seed germination and drought prevention and moisture preservation), and clean (there are no crop stubble, weeds and waste plastic film in the field). Cotton field preparation is best done 3 to 5 days before sowing. Click for more cotton growing technology Click for more food crop growing technology