尿素对难溶性磷酸盐作用的分析

STUDY ON ACTIVATION OF INSOLUBLE PHOSPHATE BY UREA

通过试验得知尿素与磷肥混和施用，土壤中水溶性磷的含量比单施磷肥时要高，表明尿素有活化难溶性磷酸盐的作用．

It was demonstrated that the content of water-soluble phosphorus in soil after the combined application of CO(NH2 )2 with phosphate was higher than the single application of phosphate. This indicated that the CO(NH2)2 was capable of activating the insoluble phosphate.