我国东北地区,属冷凉地带,是我国的一个重要大豆产区。大豆的分布,北起黑龙江大兴安岭东麓,北纬50°左右,南到辽宁省旅大,北纬39°左右。在这个地区,凡是年降雨量350—1000mm,生育期≥10℃的有效积温在1700—3500℃,土壤PH值5—8,都有大豆的栽培。其中以松花江、辽河流域的广大平原,面积最大,为东北大豆的主要产 China’s northeast region, is a cool zone, is an important soybean producing areas in our country. Soybean distribution, north of Daxinganling Heilongjiang East Foothills, latitude 50 degrees south of Liaoning Province Luda, 39 degrees north latitude. In this area, all the annual rainfall of 350-1000mm, the growth period of ≥ 10 ℃ effective accumulated temperature at 1700-3500 ℃, the soil PH value of 5-8, there are soybean cultivation. Among them, the Songhua River, Liaohe River Basin, the vast plains, the largest area for the main production of soybean in Northeast China