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磷矿粉是磷矿经过磨细而成的一种磷肥。在国外已有一百多年施用历史。我国湖南,广西、四川、浙江、湖北等省已经大面积施用。磷矿粉与其他磷肥比较,具有许多优点:第一,磷矿粉加工简单,成本低,投资少,上马快;第二,可以节省大量硫酸、焦炭和其他原料;第三,不适宜做化学磷肥的中、低品位磷矿可以直接磨粉使用,因而有利于充分利用磷矿资源。我省具有丰富的磷矿资源,但是还没有直接使用磷矿粉的经验。1972年12月省农林局、燃化局联合在临潼召开磷矿粉肥生产、试验、推广会议,对磷矿粉肥效试验作了具体安排。为了帮助各地开展这项科学实验活动,拟订了以下试验方案。供各地参考应用。
Phosphate rock phosphate is a finely ground phosphate rock. In foreign countries have a hundred years of history. China’s Hunan, Guangxi, Sichuan, Zhejiang, Hubei and other provinces have been large-scale application. Compared with other phosphate fertilizers, phosphate rock powder has many advantages. First, phosphate rock powder is simple to process with low cost, less investment and quick loading; second, it can save a lot of sulfuric acid, coke and other raw materials; thirdly, it is not suitable for chemistry Phosphate fertilizer, low-grade phosphate rock can be used directly milling, which helps to make full use of phosphate rock resources. Our province is rich in phosphate rock resources, but there is no direct experience of using phosphate rock powder. In December 1972, the provincial Agriculture and Forestry Bureau and the Bureau of Combustion and Combustion held a joint meeting on the production, testing and popularization of phosphate fertilizer in Lintong and made specific arrangements for the test of fertilizer efficiency. In order to help carry out this scientific experiment around the world, the following experimental program has been developed. For reference around the application.