广东西江地区国营林场1965年育的100多亩杉苗,绝大部份高达35厘米、根径0.5—0.6厘米,积累了一些经验。现将育苗的主要技术环节介绍如下:一、选择圃地生产实践表明,在腐殖质层较厚的山坡或生荒地上育苗,较水田育苗好;苗木粗壮、生势旺盛、根系发达、合格苗率高,而水田年年耕种,没有休闲,肥 State Forest Farm in Xijiang, Guangdong 1965 breeding more than 100 acres of fir seedlings, the vast majority of up to 35 cm, root diameter 0.5-0.6 cm, has accumulated some experience. Now nursery the main technical aspects are as follows: First, the selection of nursery production practice shows that the thick humus layer of hillsides or wasteland seedling nursery better than paddy field; sturdy seedlings, strong potential health, developed root system, qualified seedling rate High, while rice fields are cultivated year after year, there is no casual, fat