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1 基本要求要求地势平坦、土层深厚、地力均匀,0～20cm耕作层土壤有机质含量1.2%以上,全氮0.07%以上,速效磷20mg/kg左右,速效钾120mg/kg。还要求是无病地或轻病地。棉田要有良好的排灌条件,遇旱能浇、遇涝能排。底施优质土杂肥4.5万kg/hm~2,再加鸡粪1.5万kg/hm~2,复合肥750kg/hm~2左右,有条件的地方也可挖丰产沟,肥料施人沟内。春季备好地膜、化肥农药等。鲁西北和鲁北棉区宜采用纯作地膜覆盖栽培,鲁西南棉区在两熟种植
1 The basic requirements of flat topography, deep soil, uniform ground, 0 ~ 20cm tillage soil organic matter content of more than 1.2%, more than 0.07% of total nitrogen, available phosphorus 20mg / kg or so, available potassium 120mg / kg. Also claimed to be disease-free or lightly. Cotton fields have good conditions of irrigation and drainage, drought can be poured, waterlogging case. At the end of high-quality Tuzafei 4.5 million kg / hm ~ 2, plus chicken manure 15,000 kg / hm ~ 2, compound fertilizer 750kg / hm ~ 2, where conditions can also dig Feng Shougou, fertilizer applied to the ditch . Ready for the spring film, fertilizers and pesticides. Northwest Shandong and Lubei cotton should be used for pure film mulching cultivation, Southwest cotton growing in two crops