去年,我场在6年生温州蜜柑和5年生暗柳橙树上,试用植物生长抑制剂—调节膦抑制夏梢,收到良好效果。 当温州蜜柑和暗柳橙的夏梢抽发长度达1—1.5厘米时,分别喷布调节膦(含40％)250ppm、500ppm、750ppm和1000ppm四种不同浓度。试验结果:①温州蜜柑的控梢率达51.9—87.4％,夏梢长度为对照的22.3—28.2％;暗柳橙的控梢率达32.8—80.9％, Last year, we experimented with plant growth inhibitors - Phosphine-inhibiting summer shoots on 6-year-old Wenzhou Satsuma and 5-year-old dark orange trees and received good results. Phosphorus (containing 40%) of phosphine (250 ppm, 500 ppm, 750 ppm, and 1000 ppm) were sprayed and dispensed at four different concentrations, respectively, on summer shoots of satsuma and dark orange. The results showed that: (1) The control rate of Satsuma mandarin was 51.9-87.4%, the length of summer shoot was 22.3-28.2% of the control, the control rate of dark orange was 32.8-80.9%