论文部分内容阅读
桑树是发展蚕茧生产的物质基础。如果按照过去的常规,从培育桑苗到采叶养蚕需经五年的时间,即第一年播种育苗,第二年嫁接,第三年栽桑,第四年养成树型,第五年开始采叶养蚕。这样做占地面积大,投资多,农民迟迟没有收益,直接束缚着蚕桑事业的发展。为了适应国民经济发展的需要,迅速开发新蚕区,1975年以来,我们本着自力更生的原则,坚持让农民自育苗、自嫁接、自栽桑的方针,在蚕桑新区摸索出一套当年播种育苗、当年采叶养蚕、当年收益;当年嫁接、当年采叶养蚕,当年收益;当年栽桑、当年采叶养蚕、当年收益的技术措施。群众把这种新的方法,叫做“三个三当年”。
Mulberry is the material basis for the development of cocoon production. According to the past practice, from the cultivation of mulberry leaves to sericulture of leaves after five years, that is, the first year of planting seedlings, the second year of grafting, planting mulberry the third year, the fourth year to form a tree, the fifth Year began to pick leaf sericulture. This covers an area of ?? large, more investment, farmers have no return, directly undermine the development of sericulture. In order to meet the needs of national economic development, the rapid development of a new area of silkworms, since 1975, we adhere to the principle of self-reliance, adhere to the principle of allowing farmers to raise their own seedlings, self-grafting and growing mulberry. , The year of leaf sericulture, then the proceeds; year grafting, then sericulture, the year proceeds; then planted mulberry, year sericulture, then the proceeds of technical measures. The masses call this new method “three or three years.”