苹果水心病 (Noninfectious disorder of apple 病因:钙氮不平衡,山梨醇积累
苹果水心病 (Noninfectious disorder of apple) 病因:钙氮不平衡,山梨醇积累
李黄叶病 (Iron deficiency of plum) 病因:铁素不足
李黄叶病 (Iron deficiency of plum) 病因:铁素不足
猕猴桃黄叶病 (Iron deficiency of kiwi)
猕猴桃黄叶病 (Iron deficiency of kiwi)