条件筛选
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What preparations are needed before sowing cotton
1. Land preparation and fertilization: On the basis of winter plowing and freezing of the soil, apply base fertilizer in spring by broadcasting 3 cubic meters of slow-release organic manure and 30 kg of quick-acting NPK compound fertilizer per mu, then plow again, harrow and level. After rain, harrow again to retain moisture and preserve soil moisture, and wait for sowing with sufficient moisture. 2. Seed preparation: (1) Variety selection. Choose disease-resistant and insect-resistant hybrid cotton varieties. Commonly used varieties include Yuzha 35, Zhongmian 47, Zhongmian 48, etc. (2) Seed selection. Choose seeds with high purity, plump grains, maturity, and high germination rate. (3) Sunning seeds.