前言随着农业生产的发展,磷素化肥的需要量不断增加。近几年来,除国家新建磷肥厂,扩火工业磷肥生产量外,各地都在探索直接施用磷矿粉的方法,以补充磷素化肥的不足。但是,磷矿粉来源不同,成分复杂,在不同土壤、不同作物、不同施肥方法往往表现出不同的效果,通常情况下,肥效都比较低,在宁夏灌区石灰性土壤上施用,效果很差。促进磷矿粉 Preface With the development of agricultural production, the demand for phosphorus fertilizer is increasing. In recent years, in addition to the country’s new phosphate plant, expanding industrial output of phosphate fertilizer, all over the world are exploring the direct use of phosphate rock method to supplement the lack of phosphorus fertilizer. However, different sources of phosphate rock powder, complex composition, in different soil, different crops, different fertilization methods often show different effects, usually, the fertilizer efficiency is relatively low, in Ningxia irrigation area calcareous soil application, the effect is poor. Promote phosphate rock