入春以后,部分核桃园有枯枝死树现象,有的村这种现象还比较严重。通过现场调查和综合分析,发生原因主要有以下几个方面。一、核桃树枯枝死树的主要原因1、储藏营养不足。头年冬天下雪较早,养分没有正常回流,致使树体和根系储藏营养匮缺,加上冬季低温干旱,储藏营养不足成为枯枝死树的主要原因。 After the spring, part of the walnut orchard dead tree phenomenon, and some villages this phenomenon is still more serious. Through field survey and comprehensive analysis, the main reasons for the occurrence of the following aspects. First, the main reason for dead trees of dead branches of walnut trees 1, lack of nutrition. In the first year of winter, snow fell earlier and nutrients did not flow back normally, resulting in the lack of nutrients for tree and root storage. Combined with the cold and drought in winter, the lack of nutrients in storage led to the main cause of dead dead trees.