嘉湖平原桑园土壤酸化的原因和对策  

The Reason and Policy to the Acidification of Mulberry Field Soil in Plain Jiahu

作　　者：周奇迹[1] 张益农[1] 

机构地区：[1]浙江省嘉兴农业学校

出　　处：《蚕桑通报》1997年第4期1-3,共3页Bulletin of Sericulture

摘　　要：近年来，浙北嘉湖平原部分桑园土壤酸化现象十分明显，表现为土壤呈强酸性（pH值5.0左右）、粘闭板结，桑树茂势减弱，肥料反应迟钝，即使重施化肥．仍不能获得高产。经调查研究，化验分析，初步明确桑园土壤酸化状况及酸化原因，并提出部分对策。In recent years,the acidification of mulberry field soil in part of Plain Jiahunorthern Zhejiang province was very serious. The phenomenon was clear,whick the soil was strong acidic (pH = 5.0 approximately),stick-hardened,and mulberry tree developed slower, fertilizer react slowly. It is also impossible to obtain the higher yield although fertilizers were used heavy. By investigation and chemical analysis, the reason and state of acidification of mulberry field soil were understood preliminarily, and some control policies were pointed Out,

关 键 词：桑树 桑园 土壤酸化 原因 对策 

分 类 号：S888.5[农业科学—特种经济动物饲养]