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李树的冬季修剪是李园管理中的一项重要措施 ,其得当与否对李树的生育状况影响很大。为了探讨李幼树适宜的修剪程度 ,作者于１９９２～１９９８年对李幼树进行了不同修剪试验 ,其结果如下。１材料与方法试验是在宁夏中宁县新堡乡新堡村马菊香李幼树园进行的。该地年降水量２０
Winter pruning of plum tree is an important measure in the management of plum tree. Its proper or not influence the fertility of plum tree greatly. In order to study the suitable degree of pruning, the author conducted different pruning experiments on the seedlings of Li Youshu from 1992 to 1998, and the results are as follows. 1 Materials and Methods The experiment was conducted at Ma Ju Xiang Li You Shuyuan in Newcastle Village, Xinbao Township, Zhongning County, Ningxia. The annual rainfall of 20