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于1996~2002年在新疆4个主要棉区,采集21个点的主要类型耕层土壤,应用土壤养分状况系统研究法,根据土壤分析、吸附试验和盆栽试验的结果确定试验方案,阐述了新疆主要棉区土壤养分状况的差异性、土壤主要养分限制因子和氮磷钾肥对棉花的增产效益,结果表明:氮、磷是棉田土壤养分的第一、第二限制因子,钾和锌已成为新疆棉田土壤养分的限制因子或潜在限制因子,硼和锰各地表现不同,其主要养分的平均缺乏顺序为N>P>K>Zn>B>Mn。施用氮肥、磷肥和钾肥对棉花的增产效益分别为1.62 kg/kgN,1.85 kg/kgP2O5和2.71 kg/kgK2O。
The main types of tillage soils were collected from 21 main points in four major cotton areas in Xinjiang from 1996 to 2002. Based on the systematic study of soil nutrient status, the experimental plan was determined according to the results of soil analysis, adsorption test and pot experiment. Xinjiang The results showed that nitrogen and phosphorus are the first and second limiting factors of soil nutrients in cotton field, and potassium and zinc have become the most important nutrients in Xinjiang The limiting factors or potential limiting factors of soil nutrients in cotton field are different in boron and manganese, and the order of their main nutrient deficiency is N> P> K> Zn> B> Mn. The yield-increasing benefits of applying nitrogen fertilizer, phosphate fertilizer and potassium fertilizer to cotton were 1.62 kg / kgN, 1.85 kg / kgP2O5 and 2.71 kg / kgK2O, respectively.