论文部分内容阅读
1987年春,67团场在碱性大,粘性重的土壤上定植了550亩杨树林带,成活率达92％,比去年提高21％。与历来造林方式相比,不同之处就是采用了秋整春植的办法。
In the spring of 1987, a total area of 55 hectares of poplar forest was planted in 67 large-scale alkaline and viscous soils with a survival rate of 92%, an increase of 21% over last year. Compared with the traditional methods of afforestation, the difference is the use of autumn and spring planting methods.