Top dressing nitrogen at R4 to R6 stage were beneficial to dry matter accumulation insoybean shoots at later growth stage, and also beneficial to dry matter transferring to seed.

• 在R4至R6时期追肥和缓释尿素处理更利于增加大豆地上部分后期干物质积累，并有利于鼓粒期大豆干物质向籽粒的转移。