本文对大豆“两垄一沟”栽培法土壤耕层中水分、温度、容重、三相比、土壤养分和根系生长状况进行了研究。结果表明，该栽培法０—３０ｃｍ耕层含水量和温度均较高；容重除两垄一沟中间行０—１０ｃｍ耕层较小外，其它耕层也较高；三相比２０—３０ｃｍ耕层中空气减少，固相有增加，容积含水量增加最大；土壤中速效氮和速效磷有明显增加。说明“两垄一沟”栽培法改善了土壤耕层理化特性，创造了良好的环境条件，促进根系生长，增加大量不定根和中小根瘤，有利于大豆后期的生长发育。 In this paper, the soil moisture, temperature, bulk density, three-phase ratio, soil nutrient and root growth were studied in two ridge and one furrow cultivation methods. The results showed that the water content and temperature of top 0-30cm layer were higher in this cultivation method. The top layer of two furrows and one furrow was smaller than the 0-10cm layer in middle row, The air in the layer decreased, the solid phase increased and the volumetric water content increased most. The contents of available nitrogen and available phosphorus in soil increased obviously. The results showed that the cultivation method of “two ridges and one furrow” improved the physical and chemical characteristics of soil tillage, created good environmental conditions, promoted the growth of root system, increased the number of adventitious roots and small and medium root nodules, which was beneficial to the later growth and development of soybean.