近年来,随着西昌市果树种植规模的扩大,生产中出现一些果树缺乏微量元素的现象,如枝条枯死,叶变小、变脆,树冠难形成,不能按时投产等。现将果树缺乏微量元素的表现症状及防治办法介绍如下:一、营养元素缺乏的症状表现1.缺硼硼缺乏病状首先在果实上出现,以后随着缺硼的加重,症状 In recent years, Xichang City, with the expansion of the scale of fruit trees, the production of some fruit trees lack trace elements phenomenon, such as dead branches, leaves smaller, brittle, difficult to form crown, can not be put into operation on time. Now the lack of trace elements in fruit trees symptoms and prevention methods are described below: First, the lack of symptoms of nutrient deficiency 1. Boron deficiency boron deficiency symptoms first appeared in the fruit, with the subsequent lack of boron increased, the symptoms