果树“营养不良症”的防治□赤宇通常我们把由于营养不良而引起的果树生理机能紊乱在外形上的异常表现，诸如叶片变小、叶片变色、花芽减少、花期后移、果实变形等现象称之为“果树缺素症”，也即“营养不良症”。造成果树缺素症的原因主要有三条。一是土壤中缺少果树正常... Prevention and treatment of “malnutrition” in fruit trees □ Chiyu Normally, we take the appearance of abnormal physiological and physiological functions of fruit trees caused by malnutrition, such as smaller leaves, discolored leaves, reduced flower buds, later flowering and fruit deformation Call it “fruit tree deficiency syndrome”, that is, “malnutrition.” There are three main causes of fruit tree deficiency. First, the lack of normal fruit trees in the soil ...