以低酚棉绵无４１７６为材料，连续两年采用三元二次回归正交旋转组合设计，初步研究了氮、磷、钾不同施用量对低酚棉产量和纤维品质的影响。结果表明：（１）施用过多的氮肥会降低低酚棉的产量，增施磷肥并按一定比例配合施用钾肥能提高产量；（２）增施钾肥会降低低酚棉的纤维品质，而合理增施氮、磷肥能提高纤维品质。同一材料在两年间表现一致 With low phenol cotton, no 4176 as material, the quadratic quadratic regression orthogonal rotation combination design was used for two consecutive years to study the effects of different application rates of nitrogen, phosphorus and potassium on the yield and fiber quality of low phenol cotton. The results showed that: (1) Excessive application of nitrogen fertilizer would reduce the yield of low phenol cotton, increase the amount of phosphate fertilizer and increase the yield by applying potassium fertilizer in a certain proportion; (2) Adding potassium fertilizer would reduce the fiber quality of low phenol cotton, Increasing nitrogen and phosphorus fertilizer can improve fiber quality. The same material in the two years consistent