(五) 冬季修剪 葡萄冬季修剪,在我国北方寒冷地区,应在落叶后至埋土防寒前进行:在不需(?)土防寒地区,可在最低温过后至伤流前三周进行。冬季修剪主要是平衡生长与结果的关系,使幼树及时成形,适期结果;使成年树枝蔓分布均匀、生长健壮,防止结果部位上升或外移,更新复壮树体,延长结果年限。 1.结果母枝的修剪长度 通常按留 (E) winter pruning Winter pruning of grapes in northern China cold region, should be in the cold after the fallen leaves to buried before: in the absence of (?) Soil cold areas, the lowest temperature in the three weeks before the wound to be carried out. Winter pruning is mainly to balance the relationship between the growth and the results, the saplings timely shape, the appropriate results; adult tree branches evenly distributed, robust growth, to prevent the site of the results rise or relocation, rehabilitation of rejuvenating trees, to extend the results of life. 1. Results The pruning length of the mother branch is usually left