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１９９４～１９９５年在陕西关中西部棉区选用中熟品种中棉所１２，研究了不同施肥情况下棉铃的发育规律及氮、磷、钾肥在纤维、棉子和铃壳动态发育过程中对棉铃体积增大和各部分干物质积累的影响。研究表明：氮可明显促进棉铃体积增大和棉子蛋白质含量提高，磷、钾能促使光合产物的转运，有利于纤维中纤维素的积累和种子油分含量的增加。
During 1994-1995, Zhongmiansuo 12, a middle-maturing cultivar, was selected in the cotton field of West Guanzhong in Shaanxi Province. The development of cotton bolls under different fertilization conditions and the effects of nitrogen, phosphorus and potassium fertilizers on cotton boll volume Increase and the impact of various parts of the accumulation of dry matter. The results showed that nitrogen could significantly increase the boll volume and the protein content of cotton seedlings. Phosphorus and potassium promoted the transport of photosynthate, which was beneficial to the accumulation of cellulose and the increase of seed oil content.