贮藏营养是苹果树年周期生命活动的基础栽培苹果树，要控制好树的生长势，使树不旺长，适龄结果，产量增长，树势稳定不早衰，长时期稳产高产，延长树的经济寿命，如何调节、利用好树体本身的营养物质，则是个重要的问题。果树的营养状况好坏，营养水平高低，主要是指有机... Storage of nutrients is the apple tree life-cycle basis for the cultivation of apple trees, to control the growth potential of the tree so that the tree does not grow long, age-appropriate results, yield growth, tree instability does not premature decline, long-term stable and high yield, to extend the economy Life, how to adjust, make good use of the tree’s own nutrients, it is an important issue. The nutritional status of fruit trees is good or bad, the level of nutrition, mainly refers to the organic ...