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许多果农在果园的周围植树作围墙,可有些树是一些病虫的寄生,或它们的分泌物对果树生长有危害,这些树在果园周围是不宜栽植的。 葡萄园周围不宜植榆树,因榆树的分泌物对葡萄的生长发育有很强的抑制作用,只要输树根系达到的地方,就会造成葡萄减产,甚至死亡。 葡萄园、苹果园、梨园周围不宜植刺槐,更不宜用刺槐作栅栏。因为刺槐分泌的鞣酸类物质对多种果树都有较强的抑制作
Many growers plant trees around the orchards, but some of the trees are parasitic by some pests or their secretions are detrimental to the growth of the trees, which are not planted around the orchards. Around the vineyard should not be planted elm trees, elm secretions on the growth and development of the grape has a strong inhibitory effect, as long as the roots of the tree to reach the place, it will result in grape production, or even death. Vineyards, apple orchards, pear orchard should not be planted around acacia, not to use acacia for fencing. Because the acacia secretion of tannin substances on a variety of fruit trees have a strong suppression