葡萄枝蔓更新通常有三法:①局部更新法,即“双枝更新法”。冬剪时留结果母枝和预备母枝,结果母枝中档修剪,次年彻底去除;预备母枝短梢修剪,只留两三个芽,次年冬剪时再按上述办法进行。这样可使结果部位基 Grape vine manure usually have three methods: ① local update method, that is, “two branches update method.” When the winter shears leave the result mother and reserve mother, the result mother branch mid-range pruning, the following year completely removed; Prepared parent branch short shoot pruning, leaving only two or three buds, the following year winter shear again according to the above method. This will make the result site base