试验结果表明：氮、磷、钾配合能显著促进棉株地上部、地下部干物质的累积，但根冠比有所降低；ＮＰＫ，ＮＰ，ＮＫ 配合有利于单株成铃率的提高，且成铃空间分布均匀；而棉铃性状表现为铃重、衣分、衣指、子指、单铃种籽数增加，不孕籽数减少，纤维长度变化不大；另外，不同的氮、磷、钾配合形式对棉铃各性状空间分布的影响趋势基本一致，影响程度是ＮＰＫ＞ ＮＰ＞ ＮＫ＞ ＰＫ． The results showed that the combination of nitrogen, phosphorus and potassium could significantly promote the accumulation of dry matter in shoots and shoots, but the ratio of root to shoot was decreased. The combination of NPK, NP and NK could improve the boll rate per plant and The bolls were distributed in a uniform spatial distribution. Boll bolls were characterized by boll weight, lint percentage, index finger, index finger and boll number, fewer seeds and less fiber length. In addition, different nitrogen, phosphorus, The trend of the effect of potassium coordination forms on the spatial distribution of cotton bolls was basically the same, and the influence degree was NPK> NP> NK> PK.