论文部分内容阅读
当前,刺槐育苗虽然利用嫁接或插根方法都较简单,成活率也高,但种根来源毕竟有限,嫁接法又难于产生自生根。都是很大弱点,在生产实践中有很大局限性。所以插条法育苗,日益成为探讨的问题。我县在试验中,着重抓好下述五个技术环节,取得85％的成活率,当年苗高达到3米。现分述如下。(一)选插穗:选取一年生粗壮萌条,剪取其中下部作插穗。插穗长度20～25厘
At present, although Robinia pseudoacacia seedlings are relatively easy to be grafted or rooted, the survival rate is high, but the source of seedling is limited after all. The grafting method is difficult to produce self-rooting. Are great weaknesses, in the production practice has great limitations. Therefore, cutting seedling nursery, increasingly become a discussion of the issue. My county in the experiment, focus on the following five aspects of technology, access to 85% survival rate, when the seedlings up to 3 meters. Now is as follows. (A) election cuttings: Select annual thick buds, cut the lower part of cuttings. Cuttings length of 20 to 25%