磷素是作物细胞核、蛋白质的主要成份。能促进作物体内养分的积累转化，加速细胞分裂和生殖器的发育形成。增施磷肥，第一能促使作物根系发达，增强吸收能力；第二能提高作物抗旱抗寒的本领；第三能促进籽粒饱满，提高产量和品质；第四能防止作物贪青徒长，提早成熟。但磷... Phosphorus is the main component of crop nucleus and protein. Can promote the accumulation and transformation of crop nutrients, accelerate cell division and genital development. The first application of phosphate fertilizer can promote crop root development and enhance absorption capacity. The second is to increase the ability of crops to resist drought and cold. The third is to promote grain fullness and increase yield and quality. The fourth is to prevent crop growth and early maturity. . But phosphorus ...