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延边地区处吉林省东部山区,包括六县二市,其中延吉、敦化、珲春三个县是延边地区重要的大豆产区。延边地区大豆的分布,大约在北纬42°53—43°21,东径128°12′-129°28′左右。这个地区中凡是年降雨量在500—700mm、大豆生育期的有效积温在2100—2800℃、日照时数为2300—2600小时、土壤PH值6—7.5范围内都适合大豆的栽培。大豆是工业的重要原料,人民生活的主要油料和付食品,其付产品又是家畜的良好饲料,大豆
Yanbian area at the eastern mountainous area of Jilin Province, including six counties and two cities, including Yanji, Dunhua, Hunchun three counties in Yanbian is an important soybean producing areas. The distribution of soybean in Yanbian is about 42 ° 53-43 ° N and latitude 128 ° 12’-129 ° 28 ° north. In this area, annual rainfall of 500-700mm, the effective accumulated temperature in soybean growth period 2100-2800 ℃, sunshine hours 2300-2600 hours, the soil PH value range of 6-7.5 are suitable for soybean cultivation. Soybean is an important raw material for industry, the main fuel of people’s daily life and food, and its products are good feed for livestock. Soybeans