杨树是我省营造速生丰产林,农田防护林及城乡绿化的主要树种。但是,由于我省年降雨量较少,多数年份发生春旱、造林成活率低。在黄河故道地区尤为突出。从而影响了杨树的迅速发展。为了提高栽植成活率。我场分别于1981年5月、1982年3月和1983年3月对沙兰杨、Ⅰ～72/58杨、Ⅰ～69/55杨、Ⅰ～63/51杨和Ⅰ～214杨进行了 Poplar is the province to create fast growing forest, farmland shelterbelt and urban greening the main tree species. However, due to less annual rainfall in our province, most of the years experienced spring drought and low afforestation survival rate. In the old course of the Yellow River is particularly prominent. Thus affecting the rapid development of poplar. In order to improve the survival rate of planting. In May 1981, March 1982 and March 1983, we conducted a series of experiments on Sallam, I ~ 72/58 Yang, I ~ 69/55 Yang, I ~ 63/51 Yang and I ~ 214 Yang