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核桃壳发黑如何处理

更新时间: 2021-03-01 05:06:12     

1、落叶后彻底清扫核桃园,及时清除树体病果、枝和叶,深埋或烧毁;

2、加强核桃树综合管理,及时补充营养,多施磷钾肥,增强树势,提高抗病力,采收果实时尽量少用棍棒敲击,减少树体伤口;

3、注意保持树冠内部通风透光,修剪内膛枝、徒长枝,并在发病前使用优丰1500倍+正生1000倍进行叶面喷施,防止病害发生及扩散。

关键词: 核桃壳 发黑 如何 处理

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