山西省沁县核桃发展低效的原因经分析,主要存在有:多年放任实生老树粗放管理、对新栽园群众掌握管理技术不高、部分园中存在缺苗现象、主干有的受冻害、品种授粉不足、长势不均、挂果不匀和株间差异大等现象,基于这些问题,笔者对其改良技术进行了论述。 Analysis of the causes of the inefficient development of walnut in Qinxian County, Shanxi Province includes the following: The extensive management of old trees that have been let go for many years, the lack of management skills in the new plantation gardens, the lack of seedlings in some gardens, Under the conditions of pollination, uneven growth, uneven fruiting and large differences among strains, the author discussed the improvement techniques based on these problems.