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从钙镁磷肥含有多种作物所需的中、微量元素论述其作用、与三元复合（混）肥在配合施用中存在的互补作用；从钙镁磷肥的自身发展，说明钙镁磷肥在肥料中占有的位置
From the calcium and magnesium phosphate fertilizer contains a variety of crops required trace elements discussed its role, and the ternary compound (mixed) fertilizer in the cooperation with the existence of the complementary role; from the self-development of calcium magnesium phosphate, indicating that calcium magnesium phosphate fertilizer In possession of the location