一、科学施肥重施有机肥,增施磷、钾肥,适施氮肥,以便增强树势,可提高果实品质,促进着色。二、改善光照1.合理整形修剪,打开光路。冬剪时做到少留大枝,多留小枝。苹果着色前,去直立枝、遮光枝、内膛细弱枝和外围过多的长枝,改善树冠内部的通风、透光条件,促 First, the scientific re-fertilization of organic fertilizers, phosphorus, potassium, apply nitrogen fertilizer, in order to enhance the tree vigor, can improve fruit quality, and promote coloring. Second, to improve lighting 1. Reasonable plastic trim, open the light path. Winter scissors do less to stay big branch, leaving more twigs. Apple coloring, to the upright branches, shading branches, bore the weak branches and the outer long branches, to improve the interior of the canopy ventilation, light conditions, and promote