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2008年1—2月,四川省泸州市出现百年不遇的雨雪冰冻灾害,龙眼遭受严重冻害。本文研究龙眼受冻树不同修剪技术的复壮效应,结果表明:根据树体不同冻害程度而采取相应的修剪技术(如重冻树实施重度回缩,中冻树轻度回缩,轻冻树短截结合疏剪),同时结合施肥灌水,在处理当年均能恢复树冠,复壮树势。轻冻树以轻剪为主,尽量保留鲜活枝叶,既能恢复树势,又能获得丰产。
January-February 2008, Luzhou City, Sichuan Province, a rare rain and snow disaster, longan suffered serious frost damage. In this paper, we study the rejuvenation effects of different pruning techniques of longan by freezing tree. The results show that: according to the degree of frost damage of the tree, the corresponding pruning techniques (such as heavy retraction, heavy retraction, Cut with a combination of pruning), combined with fertigation irrigation, in the treatment of the same year can recover the crown, rejuvenation Shushan. Light frozen trees to light shear-based, try to keep fresh leaves, both to restore the tree vigor, but also to obtain high yield.