对苹果萌芽前根外营养 (P ,K ,Ca ,B)的吸收分配及与果实品质的关系进行了系统研究。结果表明 :萌芽前根外营养可明显提高长枝、短枝和幼果中的N、P、K含量。对提高果实品质效果明显 ,全红果率和优等级果率达 93 3%和 94 5 % ,比对照提高 1 5 1 %和 1 7 0 %。P、K可提高果形指数、全红果率和优等级果率。K、Ca可提高果实硬度和可溶性固形物含量 Absorption and distribution of nutrients (P, K, Ca, B) and their relationship with the fruit quality of apple before germination were systematically studied. The results showed that the nutrition before and after rooting could obviously increase the contents of N, P and K in long branches, short branches and young fruits. The effect of improving fruit quality was obvious. The rate of whole red fruit and excellent grade fruit reached 93.3% and 94.5%, which was 151% and 170% higher than that of the control. P, K can improve fruit shape index, whole red fruit rate and excellent fruit rate. K, Ca can increase fruit firmness and soluble solids content