缺铁黄叶病是苹果主要的生理病害之一。在我国苹果主要产区如辽西、冀东、晋中、京津等地以及我省的鲁西北、胶东、济南郊区等均有发生。在富含钙的石灰性土壤,碳酸盐过多或土壤板结、通气不良的园片发生尤为严重。对于苹果树体的生长发育和果品的产量质量均有不同程度的影响。为寻求防治缺铁黄叶病的有效措施,探明适合 Iron deficiency leaf disease is one of the major physiological diseases of apple. In China’s major apple producing areas such as western Liaoning, Jidong, Jinzhong, Beijing and Tianjin and other places as well as our province’s northwestern Shandong, Jiaodong, Jinan suburbs have occurred. In calcareous calcareous soils, too much carbonate or soil compaction, especially in poorly ventilated discs. For apple tree growth and fruit yield and quality have varying degrees of impact. In order to seek effective measures to prevent and control iron deficiency leaf disease, proved suitable