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葡萄一般在主蔓胸径达1厘米以上后产量便开始下降。那么怎样使之高产稳产呢?我们在实践中演创了一种行之有效的变相环剥法。大家知道,在早期生长旺盛的葡萄树上直接环剥会造成伤流、病虫危害,还可能因管理不慎而造成主蔓、母蔓断裂。于是,我们进行了改进,即在5月上旬,用2厘米宽的塑料带在葡萄主蔓分枝处下面缠绕5～10厘米,两个月后,环剥的主蔓上部枝条粗度使相当于下面主蔓粗度的一倍半,这样叶面积光合作用制造的营养大部分集中在结果部位,再加之“环剥”
Grapes are generally in the main diameter of breast diameter of 1 cm or more after the production began to decline. So how to make it high and stable? We practice in creating a proven disguised derailment method. As we all know, perennial grapes in the early vigorous growth of grapevines will cause wounds, pests and diseases hazards, but also may lead to rupture of the main vine, mother vine due to mismanagement. As a result, we made improvements in the early May, with a 2 cm wide plastic strip wrapped around the vine main vine branches below 5 to 10 cm, two months later, the girdling of the main vine upper branches make a considerable degree of roughness Below the main vine coarse half times, so leaf area photosynthesis nutrition most of the focus on the results of the site, together with the “girdling”