延边地区位于吉林省东部山区和半山区,降雨较多,气候湿润,很利于大豆生产。近几年来全区大豆面积一直稳定在120万亩左右,约占旱田耕地面积的37％。解放后30多年,虽然不断更新品种,但亩产只增加8％。多年来亩产一直在150斤上下波动,其原因,主要是没有采用科学的栽培技术。表现在,①拉拉稀手滤豆,大犁扣。下种多,且缺苗断条,或豆苗 Yanbian region is located in the eastern mountainous and semi-mountainous areas of Jilin Province with more rainfall and humid climate, which is good for soybean production. In recent years, the soybean area in the region has been stable at about 1200000 acres, accounting for about 37% of dry land area. More than 30 years after the liberation, the output per mu only increased by 8% despite continuous updating of varieties. Over the years mu yield has fluctuated up and down 150 pounds, the reason is mainly not the use of scientific cultivation techniques. In the performance, ① Labrador hand filter beans, big plow buckle. Under the species, and lack of broken seedlings, or bean sprouts