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虽然大多数果园的土壤中含钙量较高,而且苹果树有较高的吸钙潜力,然而缺钙仍是造成苹果树多种生理病害的原因。树体中钙作用的模式钙既可作为磷酸酶活化剂,也可与原生质
Although most of the orchards have higher calcium content in soil and apple trees have higher calcium absorption potential, calcium deficiency remains the cause of many physiological diseases in apple trees. The calcium mode of action in the body of calcium can act as a phosphatase activator, but also with protoplasm