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多元微肥含有多种微量元素，它能调节棉花的生长发育，提高棉株的生理活性，我们于1996年试验，以在初花期和盛花期二次喷施效果好，叶绿素a、b含量增加0．229和0．195mg·g（－1），硝态N吸收增加1．086ug·g（－1），增21．7倍，硝酸还原醇含量增加32．0％，增强了棉株的生理代谢；后期提高了SOD酶的活性，增强了棉株抗衰老能力；增产幅度为15．1—16．05％，并能增加单铃重，衣分和改善纤维品质。
Multivariate fertilizer contains trace elements, which can regulate the growth and development of cotton and improve the physiological activity of cotton. We tested in 1996 to make the second spraying effect at the first flowering stage and the full flowering stage, and the content of chlorophyll a, b increased 0.229 and 0.195 mg · g -1, respectively. The nitrate absorption increased by 1.086 μg · g -1, increased by 21.7 folds and the content of nitrate reductive alcohol increased by 32.0% Physiological metabolism increased the activities of SOD enzyme and enhanced the anti-aging ability of cotton plants in late stage. The yield was 15.1-16.05%, and the boll weight, lint percentage and fiber quality could be increased.