长期以来,在老桃园的迹地上再植桃树,往往生长不良,严重时甚至死亡。这就是果树的再植病。从对桃等核果类果树再植问题所做的研究指出,造成树体衰弱的原因是多方面的。一些人提出是营养缺乏,或是土壤中积累有毒物质,有人注意到与土壤中线虫有关。我们在本校老桃园迹地上,对新植桃、李、杏三种果树进行了观察和调查。从地上部和根系得到的数据认为、三种果树均有再植问题。对此、我们加以论述,供生产上参考。 For a long time, replanting peach trees in the vestiges of the old Taoyuan Mountains often leads to poor growth and serious death. This is the replantation of fruit trees. The research on the replanting of the fruit tree of the stone fruit such as peach pointed out that the reasons for the weakening of the tree are many. Some have suggested that there is a lack of nutrition, or the accumulation of toxic substances in the soil, it was noticed that the nematodes in the soil. On the veranda of Old Taoyuan in our school, we observed and investigated three new fruit trees, namely, peach, plum and apricot. Data obtained from aboveground and root systems suggest that all three fruit trees have replantation problems. In this regard, we will discuss for production reference.