钙、铁、锌,硼是果树必需的营养元素。本文主要谈谈果树对钙、铁、锌、硼元素的吸收运输与失调矫治技术的基本原理和一般方法,供果树工作者和广大农果参考。一、钙营养元素一般认为钙属于大量营养元素。就山西省来说,大部分土壤含有丰富的钙。但因其吸 Calcium, iron, zinc and boron are essential nutrient elements of fruit trees. This article mainly talks about the fruit trees on calcium, iron, zinc, boron absorption and transport of disorders and the basic principles of correction techniques and general methods for fruit workers and farmers reference. First, the calcium nutrients It is generally believed that calcium is a large number of nutrients. For Shanxi Province, most of the soil is rich in calcium. But because of its suction