随着我镇梨园面积的不断扩大和种植历史的逐年延长,梨树的缺素症在我地表现也越来越明显,造成的危害和损失也越来越严重。为了便于广大梨农充分识别和掌握对缺素症的防治技术,促进砂梨产业化的发展,特将梨树几种缺素症的识别与防治方法介绍如下。 With the continuous expansion of the area of ​​pear orchard in my town and the prolongation of planting history year by year, the deficiency of pear tree is becoming more and more obvious in my field, causing more and more harm and loss. In order to facilitate the majority of pears farmers to fully identify and master the prevention and treatment of the shortage of technology and promote the development of sand pear industry, special pear few identification and prevention methods are described below.