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大豆,一般被认为是低产作物.的确,生产经验和科研结果都证明,肥水条件越好,大豆与玉米产量的差距越大.开原县金沟子公社蚂螂屯大队第四生产队实行大面积粮豆轮作,1973～1976年四年平均,玉米亩产为1,150斤,大豆为443斤.玉米、大豆的产量之比约为2.6:1.据报道,美国玉米每亩平均最高产量为1,159斤,大豆为435斤,二者之比约为2.7:1.另据日本各地连续五年试验的结果,每亩玉米的生物产量为2,093～3,533斤,大豆则为987～1,253斤.按平均产量计算,其比值为2.5:1.可见,中外资料相近似.
Soybean, generally considered to be low-yield crops.Practical production experience and scientific research have proved that the better the fertilizer and water conditions, the greater the gap between soybean and corn production.Jiayuan County Golden Grove Commune brigade antidan fourth production team to implement a large area Grain beans rotation, 1973-1976 four-year average, per mu yield of 1,150 pounds of corn, soybeans 443 pounds. Corn, soybean production ratio of about 2.6: 1 .American corn is reportedly the highest average yield of 1,159 pounds , 435 pounds of soybean, the ratio of the two is about 2.7: 1.According to the results of five consecutive years of tests across Japan, the biological yield of corn per acre 2,093 to 3,533 pounds, while the soybean was 987 to 1,253 pounds.According to the average yield Calculated, the ratio of 2.5: 1. Visible, similar to Chinese and foreign data.