phosphatic fertilizer

it's applications in petroleum and phosphatic fertilizer production and in cooling water treatment are introduced.

并介绍了在石油工业、磷肥生产与工业循环冷却水中的应用。

status and assessment of fertilizing the nitrogen fertilizer and phosphatic fertilizer to the field in dianchi watershed

滇池流域农田氮、磷肥施用现状与评价

So among five kinds of environmental impact that come into being in phosphatic fertilizer production process, the solid waste environmental impact potential is the biggest, which means it is the most important environmental impact.

由此可见，在磷肥生产所造成的五类环境影响中，固体废物环境影响潜值最大，是最主要的环境影响；

preparation of ecological phosphatic fertilizer from low-grade phosphorite

用低品位磷矿制备生态型磷肥

phosphorus is an important nutrient for animals and plants, the phosphorus level in soil determines the effect of phosphatic fertilizer.

磷是动植物生命活动离不开的重要营养元素，土壤的供磷水平是决定磷肥肥效的主要因素。

insoluble or difficultly soluble phosphatic fertilizer

难溶性磷肥

Some ll and overy phosphatic microfossils from South China the residual effect of phosphatic fertilizer in calcareous soil

华南兰多维列世几种磷灰质微体化石石灰性土壤中磷肥后效的研究