建国以来,我国大豆生产和科研工作取得了显著进展。1949年种植面积1.25亿亩,总产509万吨,所用品种基本为农家品种,耕作粗放,单产很低。70年代以后,由于新品种丰产栽培技术的不断推广应用,大豆产量逐渐提高。1986年大豆面积1.24亿 Since the founding of the People’s Republic of China, remarkable progress has been made in China’s soybean production and scientific research. In 1949, the planting area was 125 million mu, with a total output of 5.09 million tons. The cultivars used were basically farmland cultivars, extensive farming and low yields. Since the 1970s, due to the continuous promotion and application of high-yield cultivation techniques of new varieties, the yield of soybean has gradually increased. 1986 soybean area of ​​124 million