1987年春,六十七团在土壤粘性重,碱性大,气候干燥的边境林区定植550亩杨树林带,成活率达92％,比去年提高21％。与历年相比,其造林方式的不同之处就是采用了秋整春植的办法。 去年秋末,团林管部门组织拖拉机对劣质地进行深翻整地。深翻25厘米后再用人工开沟挖坑。沟的规格为上口1.2米,深30厘米,底宽60厘米,坑深50厘米,直径60厘米。挖好后待来春定植。 In the spring of 1987, the 67th group planted 550 hectares of poplar forest in border areas where the soil is heavy, alkaline and dry. The survival rate was 92%, an increase of 21% over last year. Compared with the past years, the difference in afforestation is the use of autumn and spring planting methods. At the end of last autumn, the Tuan-Lin Administration organized a tractor to conduct deep-tucking on the poor quality. Deep turning 25 cm and then ditching artificial digging. Ditch specifications for the mouth of 1.2 meters, 30 cm deep, bottom width of 60 cm, pit depth of 50 cm, diameter 60 cm. After digging ready to spring planting.