为了寻求柞蚕增产的新途径,1987年以来,我们首次在柞蚕生产中试用了稀土,商品名为“常乐益植素”。试验结果证明,柞蚕用稀土浸卵、拌卵或喷施,公斤卵产茧量比对照增产14.7％。柞树绿叶期,喷洒树冠鲜叶增重14.1％。目前已开始在养蚕生产中示范推广。 一、应用稀土的作用 1.促进蚕儿生长发育。柞蚕卵期用稀土浸卵,幼虫期用稀土液喷施,能增强蚕儿的抗逆性,龄期发 In order to seek a new way to increase production of tussah, since 1987, we first tried rare earth in the production of tussah, and the trade name is “Changleyi”. Test results show that, tussah rare earth soaked eggs, mixed eggs or spray, kg egg cocoon yield increased 14.7% compared with the control. Oak tree leaves, spray canopy fresh weight gain of 14.1%. Has now started to demonstrate the promotion of sericulture production. First, the role of application of rare earth 1. Promote the growth and development of Caner. Tussah eggs with rare earth immersion eggs, larvae spraying with rare earth, can enhance the resistance of the cavy, age hair