西红柿在生长发育过程中,需要吸收多种营养元素,当某种元素缺乏时,在外部形态上就会表现出相应的缺素症状,对番茄产量和品质造成严重影响。而通过缺素症的识别,能有效预防危害的发生,降低生产上的损失。下面就番茄主要缺素症状表现及防治介绍如下:西红柿缺钾症状:生育初期失绿由叶缘开始发生,以后向叶肉扩展。在生育的最盛期靠近中部叶的叶 Tomato growth and development process, the need to absorb a variety of nutrients, when a lack of an element, the external morphology will show the corresponding lack of symptoms, the yield and quality of tomatoes have a serious impact. Through the identification of deficiency, can effectively prevent the occurrence of harm, reduce production losses. Below the main symptoms of tomato deficiency and prevention and treatment are described below: Potassium deficiency in tomatoes symptoms: loss of green from the beginning of the birth leaf margin began to expand to the mesophyll. Near the leaf of the central leaf at the height of fertility