为了阐明不同水肥管理措施与大豆产量及农艺性状的关系，在窄行密植栽培模式下，进行了不同氮素营养水平与不同氮素营养水平+灌水处理的比较分析。试验结果表明：灌水与氮肥共同作用比氮肥对大豆产量增产13.2%，通过统计分析得出，N2与灌水处理为最佳水肥处理措施。此外，灌水与氮肥协同处理，大豆的株高和茎粗均有明显增加，有利于获得更多生物产量，为秸秆还田提供更多的C、N营养成分。

To illustrate the effects of water and fertilizer management measures and soybean yield and agronomic traits. Comparative analysis of different nitrogen nutrition level and different nitrogen nutrition level + irrigation treatment under the cultivation mode of narrow row solid seeding. The results showed that: combination of irrigation and nitrogen fertilizer than nitrogen fertilizer on soybean yield increase by 13.2%, trough statistical analysis, N2 and irrigation is the best water treatment measures. In addition, water and nitrogen coordination treatment, the plant height and stem diameter of soybean were significantly increased, to get more biological production and provide more of C and N nutrition as the straw returned to field.