银白杨(Populus alba L.)是新疆广大平原地区主要速生用材、四旁绿化和农田防护林的重要树种.过去,我们采用多种方法提高银白杨扦插育苗成活率,但成效不大.1982年,我们试用地膜覆盖扦插育苗(0.5亩),成活率达64%;1983年又试验8亩,成活率达81.1%;1984又试验20亩,其中4亩成活率达83%,平均苗高100厘米, Populus alba L. is one of the most important tree species for greening and farmland shelterbelts in the vast plain area of ​​Xinjiang. In the past, we used various methods to improve the survival rate of cuttage seedlings of Populus tomentosa with less success. In 1982, Trial mulching cutting seedlings (0.5 acres), the survival rate of 64%; in 1983 and 8 acres of trials, the survival rate of 81.1%; 1984 and test 20 acres, of which 4 acres of survival rate of 83%, the average height of 100 cm,