黑龙江省西部半干旱地区大豆采用带作少耕栽培，垅体增大，减少耕翻次数和地面积，减轻土壤水分散失，提高自然降水利用串１４．８％～２０．３％。带作穴播垅间距离增加，株行间通风透光良好，株间相对风速增加３８．２４％～４１．６５％，二氧化碳浓度增加１０．１％，光合强度增加２８．０３％～５９．２６％，生育期光能利用率提高９．８％～１１．６％，土壤耕层温度提高０．３～０．５℃。光温水条件的改善使大豆落花率减少２．５％～５．１％，落荚率减少７．７％～９．５％，生物产量增加１８．８％～２３．１％，子实产量提高１８．３％～１９．９％。 Soybean in the semi-arid western area of ​​western Heilongjiang Province used tillage for cultivation, increasing its population, reducing the number of tillage and land area, reducing soil water loss and increasing the use of natural precipitation by 14.8% -20.3%. With the increase of the distance between the planting sites, the relative air velocity between plants increased 38.24% ~ 41.65%, the carbon dioxide concentration increased 10.1% and the photosynthetic intensity increased 28.03% ~ 59.26 %, The utilization of light energy in growth period increased by 9.8% ~ 11.6%, the temperature of soil plowing increased by 0.3 ~ 0.5 ℃. The improvement of light and warm water conditions reduced the rate of falling of soybean by 2.5% -5.1%, the rate of falling pods by 7.7% -9.5% and the increase of biological yield by 18.8% -23.1% Increase 18.3% ~ 19.9%.