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1.播前(1)增施底肥。地膜棉生长发育快,结铃多,需肥量大,必须增施底肥。底肥以有机肥为主。因覆盖后苗期和蕾期追肥不便,所以要加大底肥用量。根据经验,产皮棉125千克,底肥需有机肥5000千克、饼肥50千克、碳铵20～30千克、过磷酸钙50千克左右。(2)播前浇水。覆盖棉田土壤墒情对全苗影响大。春季浇水造墒有两种方法,一是先浇水后整地起垄,二是先整地起垄后浇水,这种
1. Sow before (1) increase the base fertilizer. Rapid growth and development of cotton membrane, knot more than the required amount of fertilizer, we must increase the base fertilizer. The main fertilizer to organic fertilizer. Due to coverage after seedling stage and budding inconvenience, so to increase the amount of base fertilizer. According to experience, 125 kg of lint produced, at the end of organic fertilizer required 5000 kg, 50 kg cake, ammonium bicarbonate 20 to 30 kg, 50 kg of superphosphate. (2) Watering before sowing. Mulch cotton soil moisture content of the whole plant big impact. There are two ways to make water in spring watering: first, watering the soil and furring; second,