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什么是复合肥料?在一种肥料中,同时含有氮、磷、钾三要素中的两种或三种元素的就叫做复合肥料。例如硝酸钾和偏磷酸铵,它们分别含有植物生长所必需的氮、钾,氮、磷两种元素,是两种复合肥料,又称二元复合肥料。复合肥料所含的肥分,绝大部分可以被作物吸收利用,肥分浓厚,肥效持久,便于大面积施用。但也有它的缺点,因为所含氮、磷、钾比例固定,不能灵活地满足作物生长期所需某种单一营养肥素的需要,必须与其它单一肥料配合施用。
What is a compound fertilizer? In a fertilizer, containing three elements of nitrogen, phosphorus and potassium three or three elements called compound fertilizer. Such as potassium nitrate and ammonium metaphosphate, which contain the necessary plant growth nitrogen, potassium, nitrogen and phosphorus are two kinds of compound fertilizers, also known as binary compound fertilizer. Fertilizer fertilizer compound contained, the vast majority can be absorbed by the crop, fertilizer, strong, lasting fertilizer, easy to large-scale application. However, it has its shortcomings because it contains nitrogen, phosphorus and potassium in a fixed ratio and can not flexibly meet the needs of a single nutrient for crop growth and must be used in combination with other single fertilizers.