果树进入结果期以后,需要经常调节结果与生长之间的矛盾,减少“大小年”现象,以期达到果树连年丰产、稳产、优质的目的。在果树栽培管理中,根据树体的合理负担量,多了“疏”,少了“保”,已成为调节“大小年”的重要措施之一。 果树生物学产量(包括果实产量和根、茎、叶等营养器官的生长量)的形成,主要依靠树叶制造有机营养。树体生长良好,能使其营养积累和消耗之间保持平衡,每年不仅为开花座果、果实发育提供足 After the fruit tree enters the fruiting period, it is necessary to adjust the contradiction between the result and its growth frequently to reduce the phenomenon of “size year” and achieve the purpose of fruit yield increasing year by year, stable yield and high quality. In the fruit tree cultivation and management, according to the reasonable burden of the tree, more “sparse”, less “Paul” has become one of the important measures to adjust the “size year”. The biological yield of fruit trees (including fruit yield and the growth of vegetative organs such as roots, stems and leaves) mainly depends on the production of organic nutrition by leaves. Tree growth well, can make the balance between nutrient accumulation and consumption, not only for the flowering pericarp, fruit development to provide adequate