吕梁地区是全国核桃的重点产区之一，“汾州核桃”更久负盛名。多年来由于该区核桃园放任生长，严重影响了产量和品质的提高。对此笔者从1993年秋开始，对部分核桃园管理中存在的问题进行了调查、试验，以期找到解决问题的办法。1试验材料与方法试验于1993年9月至1994年8月。在 Luliang is one of the key producing areas of national walnut, “Fenzhou walnut” more prestigious. Over the years due to the development of the district walnut park, seriously affected the yield and quality improvement. In this regard, the author from the autumn of 1993, some of the problems in the management of the Walnut Park were investigated and tested in order to find a solution to the problem. 1 Test Materials and Methods Test in September 1993 to August 1994. in