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磷素在植物体中除作为核酸、核蛋白和磷酯等有机化合物的组成成分外,还参与作物体内的多种代谢作用,对作物的生长发育及产量、品质都有密切的关系。近年来,随着生产水平和化肥工业的发展,棉田氮素化肥用量日趋增加,氮磷比例失调,因而磷肥的施用受到极大重施。
In addition to phosphorus as a component of organic compounds such as nucleic acids, nuclear proteins and phospholipids, phosphorus also participates in a variety of metabolic activities in crops and has a close relationship with crop growth, yield and quality. In recent years, with the production level and the development of chemical fertilizer industry, the amount of nitrogen fertilizer in cotton field is increasing day by day, and the proportion of nitrogen and phosphorus is out of balance. Therefore, the application of phosphate fertilizer has been greatly re-applied.