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我们从1983年开始,连续三年进行毛白杨地膜覆盖硬枝扦插育苗试验。结果证明,地膜覆盖能有效地提高毛白杨扦插成苗率,三年平均成苗率达60.1％,而对照(未覆膜)的成苗率只有24.9％,覆膜是对照的241％,同时,覆膜比对照苗木高生长量提高了8—38％。为培育优质壮苗,缩短育苗周期创造了条件。试验地选在运城市大渠乡北张村,土壤为轻壤土,排灌方便。育苗地需深耕细整。将1年生毛白杨种条截成20厘米长的插穗放于清水中浸泡5—7天后,
We started from 1983, for three consecutive years of white plastic film covered hardwood cutting propagation test. The results showed that the plastic film mulching could effectively increase the cuttage rate of Populus tomentosa cuttings, the average seedling rate reached 60.1% in three years, while the control (uncoated) seedling rate was only 24.9%, the covered film was 241% of the control Compared with the control, seedling height increased by 8-38%. To cultivate high quality seedlings, shorten the cycle of nursery has created the conditions. Experimental selection in Yuncheng Dukou North Village, soil light loam, irrigation and drainage convenience. Nursery to be intensive cultivation. The 1-year-old poplar cuttings cut into 20 cm long cuttings placed in water for 5-7 days,