硼是大豆重要的营养元素。硼有降低大豆呼吸,降低琥珀酸脱氢酶和α-淀粉酶活性,提高固氮酶及硝酸还原酶活性,对碳水化合物运输,生长发育和产量等均有促进作用。美国已发现41个州土壤有效硼缺乏。我国土壤缺硼面积亦很大。黄淮及长江流域大豆产区,是我国大豆主产区之一,而大豆硼素营养研究甚少。为此,1982—1984年对该区土 Boron is an important nutrient element of soybeans. Boron can reduce soybean respiration, reduce succinate dehydrogenase and a-amylase activity, increase nitrogenase and nitrate reductase activity, and promote carbohydrate transport, growth and yield. The United States has found 41 soil available boron deficiency. China’s boron area is also a large area of ​​boron. Huanghuai and the Yangtze River Basin, soybean production areas, is one of the main producing areas of soybean in China, while little research on soybean boron nutrition. For this purpose, 1982-1984 on the area of ​​soil