加强现有柑桔衰弱树和老树的管理、复壮,是我省当前发展柑桔生产,扩大出口贸易必须注意的一个重要问题。复壮柑桔衰弱树、老树的经验和技术措施很多,其中比较有效的就是夏季修剪,因为复壮树势快,从而提高产量显著。如江津县先峰公社程家大队40年生的甜橙衰老低产园,1963年夏剪 Strengthening the management and rejuvenation of the existing decaying trees and old trees of citrus is an important issue that our province should pay attention to in the current development of citrus production and expansion of export trade. Rejuvenation Citrus weak tree, the old tree experience and technical measures are many, of which more effective is the summer pruning, because the rejuvenation of the tree fast, thereby increasing yield significantly. For example, Jiangjin Xianfeng commune Cheng Brigade 40-year-old orange low-yielding garden, cut in the summer of 1963