根据土层可移动性石灰、总碳酸盐及一些盐类的含量来确定地段是否适宜栽培葡萄嫁接苗。土壤中石灰含量高,常使大多数砧木发生石灰性失绿病。每一种砧木在同种土壤中,对石灰含量有自己的适宜界限,低于这种界限砧木生长良好,而高于这种界限则引起失绿病乃至死亡。只有在碳酸盐土壤中葡萄才发生石灰性失绿病,但在碳酸盐含量相同的土壤中,失绿病的发生取决于砧木的特性和石灰粒的大小。土壤的机械组成、湿度、通 According to the soil mobility of lime, total carbonate and some salt content to determine the lot suitable for grafting grape grafting. High lime content in soils often leaves most rootstocks calcareous chlorosis. Each rootstock in the same soil, the lime content has its own appropriate limits below which rootstocks grow well, and above this limit is caused by chlorosis and even death. Calcareous chlorophyll occurs only in carbonate soils. However, in soils of the same carbonate content, the occurrence of chlorosis is dependent on the characteristics of the rootstock and the size of the lime grains. Soil mechanical composition, humidity, pass