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苹果树对微量元素反应比较敏感,近些年来,我省各苹果产区都程度不同地发生了苹果缺素症。缺素症状和防治方法可参考下表:
Apple trees are more sensitive to trace elements reaction, in recent years, the apple producing areas in our province all occurred to different degrees of apple-deficiency syndrome. Deficiency symptoms and prevention methods can refer to the following table: