灵武农场四队去年种植大豆12.6亩,亩产391斤,每亩纯盈利90多元.主要做法是:一、选用优良品种近几年来,通过种植试验,从四个品种中挑选出铁丰8号这个优良品种,该品种株高65～70厘米,主茎发达,秆强直立,耐肥抗倒,株形紧凑,分枝少,节间短,结荚密,适宜密植,增产潜力大. Lingwu farm four squat last year planted 12.6 acres of soybeans, 391 kg per mu, net profit per mu more than 90 yuan. The main approach is: First, the selection of fine varieties In recent years, through planting trials, from the four varieties selected Tiefeng 8 No. This excellent variety, the variety of plant height of 65 to 70 cm, developed the main stem, straw strong erect, resistant to lodging, compact plant shape, fewer branches, internodes short, dense pod, suitable for close planting, yield potential.