我县是浙江省柑桔生产的北缘地区,近年发展温州蜜柑八十多万株,现已有部分幼树陆续结果。为提高幼树座果率,1982年我们试用国产新型激素三十烷醇、增产灵等进行保果试验。供试药剂和浓度: 1.三十烷醇(广西平乐化工厂产品)O.13ppm; My county is the northern margin of citrus production in Zhejiang Province. In recent years, there have been more than 800,000 mandarin oranges in Wenzhou, and some of the young trees are now in succession. In order to improve the rate of sapling in 1982, we experimented with the domestic-made new-type hormones, such as triacontanol, ZSP, etc. Test agents and concentrations: 1. triacontanol (Guangxi Pingle Chemical Products) O.13ppm;