一、技术来源:该项目由黑龙江省农业科学院大豆研究所栽培室多年研究而成,1994年审定推广。 二、增产效果:1991年—1993年总试验面积3165亩,平均亩产231.5公斤,比70厘米垄上精量点播增产18.2％,比45厘米单条增产5.6％,比50厘米单条增产3.9％。总的增产幅度5.1～41.9％,平均增产幅度15—25％。三年试验“两垄一沟”栽培法比70厘米垄上精量点播平均公顷增产大豆 First, the technical sources: The project by the Heilongjiang Academy of Agricultural Sciences soybean research room made from years of research, 1994 validation promotion. Second, the effect of increasing production: 1991-1993, the total test area of ​​3165 acres, an average of 231.5 kilograms per mu, than the 70 cm Ridge on-demand production increased 18.2%, 5.6% more than 45 cm single, an increase of 3.9% than the single 50 cm. The overall increase rate of 5.1 ~ 41.9%, the average yield increase of 15-25%. Three-year trial “two furrows and one furrow” cultivation method than the 70 cm ridge on-demand fine crop averaging hectare yield soybean