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板栗树,盛果期可达50～80年。此期冬季修剪的主要任务是调节生长与结果的矛盾,以保持健壮的树体,高产的树冠,良好的通风透光条件,控制结果部位外移速度,及时更新衰老的结果枝组,防止大小年结果的现象发生,达到延长盛果期年限之目的。冬季修剪的适宜时间,以落叶后半月至春季萌动的前半月,但冰冻时候不宜动剪。在修剪时要把病虫枝、重叠枝、轮生枝、交叉枝、干枯枝、细弱枝全部剪除,以改善树冠内的通风透光性。同时又集中营养使枝梢得以粗壮充实。对于顶端技及其骨干枝的延长技,每年宜留50厘米左右短截,以促发新技,增加结果母枝的数量,同时控制结果部位外移的速度。在修剪时要把树膛内或大枝中下部位的徒长枝保留一部分并加以改
Chestnut tree, fruit period up to 50 to 80 years. The main task of this winter pruning is to adjust the contradiction between growth and results, in order to maintain a robust tree, high yield crown, good ventilation and light conditions, control the site of the results of external migration speed, timely update aging results Zhizu, to prevent the size The phenomenon of the year results, reaching the purpose of extending the full fruit period. Winter pruning appropriate time to deciduous half to spring germination of the first half, but when frozen should not be cut. In the pruning of pest branches, overlapping branches, whorled branches, cross branches, dry branches, thin branches cut off all to improve the air permeability of the canopy. At the same time focus on nutrition to make stout full enrichment. For the top technology and its backbone extension technology, should be allowed to stay about 50 cm short stub each year to promote new technology to increase the number of results of the parent branch, while controlling the speed of the site of external migration. In the pruning of the tree trunk or branch to the lower part of the growth and keep a small branch and change it