钾是果树营养三大元素之一 ,对促进果实膨大、上色、花芽形成及提高果实内在品质、抗病性均有显著作用。但以往施用钾肥 ,多用硫酸钾 ,而不用氯化钾 ,认为苹果树是“忌氯植物”,导致这一价廉有效的肥料不能发挥应有的作用 ,影响了钾肥的施用。为开辟钾肥资源 ,降低生产成本 ,我 Potassium is one of the three major elements of fruit tree nutrition, and has a significant effect on promoting fruit enlargement, color formation, flower bud formation, and improving fruit intrinsic quality and disease resistance. But in the past, the use of potassium fertilizer, potassium sulfate and more, without potassium chloride, that apple tree is “bogey chlorine plant”, resulting in the cheap and effective fertilizer can not play its due role, affecting the application of potash. To open up potash resources, reduce production costs, I