大豆是我省重要栽培作物之一,也是主要出口基地。多年来单产水平不高,其原因之一就是缺苗、断条,植株分布不合理,不能充分利用地力和光能。使大豆个体和群体的增产潜力得不到充分发挥,影响产量的提高,所以研究大豆群体结构,是目前一项有效地增产措施。为此,我们在1916年、1981年和1982年,通过不同播种方式,研究了大 Soybean is one of the important cultivated crops in our province and also the main export base. Over the years the level of yield is not high, one of the reasons is the lack of seedlings, broken strips, plant distribution is not reasonable, can not make full use of soil and light energy. So that the yield potential of individual and group of soybean can not be brought into full play, which will affect the increase of yield. Therefore, studying soybean colony structure is an effective stimulation measure. For this reason, in 1916, 1981 and 1982, we studied the big by different sowing methods