一、試验的依据、目的、要求及经过我省甘蔗主产区地处亚热带和热带,常年月平均气温都在20℃以上,年降雨量平均为1440毫米,几乎四季都可以种蔗。但是,在我省种蔗历史上,都是以清明前后下种的迟春植为主的。解放后五十年代,才结合良种的推广逐步把迟春植改为早春植,1958年甘蔗亩产量由1949年的1.54吨提高3.02吨,人们从生产实践中,体会到提早植期延长甘蔗生长期,对 First, the test basis, purpose, requirements and through the main producing sugarcane in our province is located in the subtropical and tropical, perennial average temperatures are above 20 ℃, the average annual rainfall of 1440 mm, almost four seasons can grow cane. However, the history of planting sugarcane in our province is dominated by late spring planting of Chimonanthus chinensis. After the liberation of the fifties, only with the promotion of improved seed gradually to Chichun planted to early spring planting, in 1958 the output of sugarcane mu from 1.54 tons in 1949 increased 3.02 tons, people from the production practice, to appreciate the early planting to extend the growth of sugar cane Period, right