我地区从一九五九年开始试用磷肥。刚开始使用时,广大干部和群众都认为这是“石头粉”,对水稻增产起不了多大作用。当时地区化工厂生产钙镁磷肥和60年国家从摩洛哥进口一批磷矿粉,无偿赠给一些粘瘦土缺磷低产队试用,结果获得成倍增产。如北流民安公社松石大队早造施用磷肥亩产 Since 1959, our region has experimented with phosphate fertilizer. When it was first put to use, most cadres and the masses regarded it as a “stone powder,” which did little to increase the output of rice. At that time, the chemical plants in the region produced calcium magnesium phosphate fertilizer and 60 years the state imported a batch of phosphate rock powder from Morocco. These plants were given free trial for some low-yielding phosphorus-deficient team of clay-rich soil and the result was doubled. For example, Beiliuan Anhe Community Turquoise Brigade used phosphate fertilizer per mu