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钾是大豆所必需的三大要素之一。近年来，随着大豆单产的提高，在大量施氮。磷肥的同时，对钾需求日趋紧迫，土壤施钾肥已纳人提高单产的重要措施之一。1．增施钾肥的必要性1．1从钾的生理功能上看植物体代谢需要酶来催化。现已查明植物体内有60多种酶需钾来活化，所以钾在大豆
Potassium is one of the three essential ingredients for soybeans. In recent years, with the improvement of soybean yield, a large number of nitrogen. Phosphate fertilizer at the same time, the increasingly urgent demand for potassium, soil fertilizers have been included in one of the important measures to increase yields. 1. Necessity of increasing potassium fertilizer 1.1 From the physiological function of potassium plant metabolism requires enzyme to catalyze. Has now been identified in plants with more than 60 kinds of enzymes needed to activate potassium, so potassium in soybeans