论文部分内容阅读
1.P~(32)在树体内的分布地上部与地下部不同。不同物候期有其分配中心。如开花期以花内分布最多,座果期以幼果内分布最多。其 P~(32)分布的多少,与器官的生长强弱、活动强度有密切关系。2.摘心、环割等农业技术可以改变 P~(32)的分布情况。从而有利于提高座果率和促进花芽的形成。3.施肥应根据果树的不同物候期对磷的需要而进行。
1. P ~ (32) in the distribution of trees aboveground and underground different. Different phenology has its distribution center. Such as flowering to flowers within the distribution, fruit set to young fruit distribution within the most. The P ~ (32) distribution of how much, and organ growth, activity intensity are closely related. 2. Topping, ring cutting and other agricultural techniques can change the distribution of P ~ (32). Which will help improve fruit set rate and promote the formation of flower buds. Fertilization should be based on the different phenological stages of fruit trees on the phosphorus needs.