对菜用大豆品种“２９２”分别于二复叶期、始花期、结英期、采青期的植株进行化验分析的结果表明：（１）结荚至采青期为于物质积累最快时期，占总积累量的４３．９８％，始花至结荚为日增重最快阶段。（２）苗期至始花期氮、磷均以叶中含量最高，钾以茎中含量最高。采青期荚中氮、磷、钾含量最高。（３）不同器官中全氮、磷、钾含量存在较大差异，氮含量叶＞花荚＞茎、磷含量花荚＞叶＞茎、全钾含量茎＞叶＞花荚。（４）每１００ｋｇ青英需Ｎ１．７３ｋｇ，Ｐ２Ｏ５０．１９ｋｇ，Ｋ２Ｏ０．９４ｋｇ，氮、磷、钾比例为１：０．１１：０．５４。 The results of the laboratory analysis of the vegetable soybean variety “292” in the two-foliar-leaf stage, the first flowering stage, the end of the engulfing stage and the harvesting stage showed that: (1) , Accounting for 43.98% of the total accumulated volume, the first flower to the pod for the fastest growing weight gain phase. (2) The content of nitrogen and phosphorus in seedling and flowering stage was the highest in leaf, and the content of potassium in stem was the highest. Green pods in the highest nitrogen, phosphorus and potassium content. (3) The contents of total nitrogen, phosphorus and potassium in different organs were quite different. The contents of nitrogen, such as leaf> flower pod> stem and phosphorus, flower pod> leaf> stem, total potassium content stem> leaf> flower pod. (4) For each 100kg of green need N1.73kg, P2O50.19kg, K2O 0.94kg, nitrogen, phosphorus and potassium ratio of 1: 0.11: 0.54.