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2013年套袋红富士苹果轮纹病发生原因

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摘要 2013年的异常气候,使我地生长季节出现了前期(3、4月份)低温,中期(7月份)多雨,后期(8、9月份)干旱的不正常现象,致使果树物候期推迟,病虫害发生频繁,尤其套袋红富士苹果轮纹病比正常年份发生严重.初步调查发现,不少园片烂果率达20%左右,个别严重者高达90%(尤其套塑膜袋),几乎无收,给果农造成了重大的经济损失.为清楚其发生原因,笔者进行多处实地调查,并进行了分析.
出处 《河北果树》 2014年第2期9-9,11,共2页 Hebei Fruits
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