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胡杨耐盐碱,耐干旱、抗风沙,是荒漠盐碱地区造林的优良树种。胡杨播种育苗常采用垅式或床式,播种时间一般在夏季。1985～1986年,我所在学习外地经验的基础上,进行了春季大田式地膜覆盖育苗实验,取得了较好成效。保苗率达80％。育苗播种期和苗木生长期比夏初(5月下旬)和夏末(7月中下旬)播种提早和延长42～102天。苗木生长量一般提高50％以上。在未施基肥和仅在二年生时追尿素2次的情况下,春播二年生苗最高215厘米,平均114.2厘米,地径最大1.37厘米,平均0.69
Poplar saline-alkali resistance to drought, wind sand, is an excellent saline-alkali desert afforestation species. Poplar seedling seeding often use 垅 type or bed, sowing time is generally in summer. From 1985 to 1986, based on the field experience we learned, we carried out the field-field plastic film mulching experiment and achieved good results. Seedling rate of 80%. Seedling seeding and seedling growing period earlier than early summer (late May) and late summer (late July) sowing earlier and extended 42 to 102 days. Seedling growth generally increased by 50% or more. In the case of no application of base fertilizer and 2-year-old urea recovery only, the maximum annual spring seedling yield was 215 cm, an average of 114.2 cm and a maximum diameter of 1.37 cm with an average of 0.69