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过去,我场对苹果树径粗5cm以上、因腐烂病只剩下1cm左右宽度健皮的大枝,既使尚未死亡,也都采取锯掉的办法,致使果园损失惨重。1990-1991年4月中旬初,我场刮治苹果腐烂病时,发现腐烂病基本烂透一圈,尚未死亡的百余个大枝发了芽,4月15日我们对这些病枝刮除腐烂病后,每个大枝剩下的健皮宽度仅1cm左右,然后利用刮治伤口下方的枝条跨越伤口进行桥接,每个大枝桥接3个枝,桥接全部成活,不但救活了这百余个大枝,而且其生育较好。例如,1990年和1991年分别救活的国光和金冠大枝,其基本烂透处的径粗分别为7cm和6cm,枝长分别为2.5m和3.0m,当年枝产果实分别为9kg和24.5kg,创产值分别为10.8元和19.6元。可见,采用
In the past, my field of apple trees diameter of more than 5cm, due to rot disease only about 1cm width of the skin big branches, even if not dead, but also take away the way, causing the orchard to suffer heavy losses. 1990-1991 early April mid-early, my field scrape Apple rot disease, rot rot basically found in a circle, have not yet died of more than a hundred large branches of buds, April 15, we scratch these branches cure decay After the illness, each big branch remaining healthy skin width is only about 1cm, and then use the scratch under the branches of wounds across the wound bridge, each branch of the bridge of 3 branches, bridge all survived, not only saved the hundreds of branches , But its birth is better. For example, in 1995 and 1991 respectively, Guoguang and Golden Delicious large branches, the diameter of which is basically 7cm and 6cm respectively, the branch lengths are 2.5m and 3.0m respectively, and the fruit production in that year was 9kg and 24.5kg respectively , Hit a production value of 10.8 yuan and 19.6 yuan respectively. Visible, adopted