论文部分内容阅读
桑树绿枝扦插是在春蚕的五龄期,结合采叶利用桑枝上当年生生长50～60天的健壮绿枝,剪取插穗,给予适宜的环境条件,使其发根长成完整植株.日本采用绿色塑料薄膜覆盖扦插繁苗试验成功,国内江苏、浙江、湖南等温暖地域通过土钵扦插活后移栽的繁苗方法已趋于实用化.山东省地处黄河流域,年生长期仅180天左右.为加速繁育桑苗,适应本省蚕业生产发展的需要,针对山东的气侯特
Mulberry green branch cutting is in the fifth instar of the spring silkworm, combined with the use of mulberry branches on the growth of annual growth of 50 to 60 days of robust green branches, cut the cuttings, given the appropriate environmental conditions so that the hair grow into a complete plant. Japan The successful application of green plastic film to cover cuttings and seedlings has become more and more practical in domestic warm areas such as Jiangsu, Zhejiang and Hunan after transplanting by soil mortar cuttings. Shandong Province is located in the Yellow River basin with an annual growth period of only 180 days To speed up the breeding of saplings, to adapt to the needs of the development of sericulture in our province, for the special climate in Shandong