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我省山区有比较丰富的野生或半野生梨树,因常年撂荒,产量很少,梨果品质较差,采用高接换头的办法改造山梨树,可使劣种变良种,野果变家果,两三年内可见成效。高接换头在整个生长季节都可以进行,以“清明”至“芒种”嫁接效果最好。1.处理砧术大树高接换头,最好结合改造树形进行。对全树各级枝预先要有个计划,选出主枝、侧枝,在最适宜的部位锯断;中心领导枝尽量少去头;过密的大枝从基部一次锯掉;其他小枝只留一小段做砧木(如图1)。
There are abundant wild or semi-wild pear trees in the mountainous areas of our province. Due to perennial famine shortage, low yield and poor quality of pear fruit, Fruit, two or three years to see results. High interchangeable head can be carried out throughout the growing season to “clear” to “mount” the best graft. 1. Treatment of anvil surgery tree high interchangeable head, the best combination of transformation tree. The whole tree at all levels of branches in advance to have a plan, select the main branch, collateral, sawing in the most appropriate parts; the central leading branches to minimize head; the dense branches from the base saw off once; other branchlets only leave a Small pieces of rootstock (Figure 1).