云南省化工研究院化肥农药试验推广站于1988年开始硅肥肥效试验研究,1989年又联合云南省农资公司、云南省土肥站共同开展硅钙、硅磷肥肥效试验研究,经过两年的盆栽试验和田间多点试验,取得了一定的效果,在前两年的基础上,1990年重点在云南省五县(澄江、江川、宜良、呈贡、安宁)开展黄磷炉渣硅钙肥万亩示范推广工作,现 Fertilizer and Pesticide Experimental Extension Station of Yunnan Chemical Industry Research Institute started to study the effect of fertilizer on silicon fertilizer in 1988, and in 1989, jointly with Yunnan Agricultural Research Company and Soil and Fertilizer Station of Yunnan Province, carried out experiments on the effect of silicon, calcium and phosphorus fertilizers. After two years of pot experiment On the basis of the previous two years, in 1990, the key counties of phosphorous slag, calcium silicate and calcium phosphate, were built in five counties in Yunnan Province (Chengjiang, Jiangchuan, Yiliang, Chenggong and Anning) with a yield of 10,000 mu Demonstration work, now