近年来,葡萄生产常常采用篱架整形密植或高度密植栽培,每亩地栽800棵或更多,定植后的一、二年即获得较高的产量。但由于栽植密度大,采用直立绑蔓,顶端优势过强,导致结果部位迅速上移,下部枝蔓衰弱枯死,而上部因枝蔓密挤郁闭,不但结果不好,且易招致病虫害的发生。采用篱架密植葡萄四级主蔓“之”字形整枝可收到抑 In recent years, grapes are often planted in the form of high-density or high-density plastic planting, planting 800 or more acres per mu, planting one or two years to obtain higher yields. However, due to planting density, the use of upright tied vine, the top advantage is too strong, leading to the results quickly move up parts of the lower branches of the weak dead, while the upper part of the crowded crowded crowded closed, not only the results are not good, and easily lead to the occurrence of pests and diseases. Fence planting grapes four main vine “” shape pruning can be received suppressed