一、科学疏花疏果1.原则。一是根据品种结果特性疏花疏果,次序是先疏顶花芽,后疏腋花芽。二是根据树势、树龄确定留果量。即树势强健、枝龄较轻或枝条细弱的宜稀;树势较弱、树龄较大的少留;辅养枝适留;骨干枝少留;外围、冠上 First, the science of thinning thinning fruit 1. Principles. First, according to the characteristics of the results of varieties of thinning thinning fruit, the order is the first sparse top flower buds, axillary buds after the sparse. The second is based on tree potential, age determined to retain fruit. That is, the tree vigor is strong, the branch age is light or the branches are weak and should be thin; the tree vigor is weak, the older ones stay less;