干旱沙区河北杨扦插育苗技术试验

Experiments of Cuttage Seedling-raising of Populus hopeiensis in the Arid Desert Region

在干旱沙区对河北杨进行扦插育苗试验,结果表明:河北杨育苗时间宜在4月下旬至5月上旬,稍晚于一般杨树;采用覆膜扦插,可提高地温、土壤表层含水率,减少杂草,提高生根成活率和苗木生长量;以沙壤土为基质,用当年生萌条作为扦插材料,经冬季沙藏后于翌年春季,用ABT1号生根粉200 mg/L浸泡2 h,生根成活率达95%以上,经济实用,效果好。

By the method of field test and variance analysis, the techniques of cuttage seedling-raising by clone propagation of Populus hopeiensis is studied in desert area. The results showed that the stages is the last ten day of April to the first ten day of May, it is less later than other Populus. Compared with the control, peritoneum plastic is well, which can improve temperature and moisture of soil, reduce grass, increase the survival rate and make growth fast. The survival rates increased treated by 4 plant hormones treatments with the best effect of ABT No.2(200 mg/L, 2 h) from economical and practical viewpoints.