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在通化市冲积土和白浆土地区进行了氮磷钾配施对大豆产量影响的试验。结果表明：随着大豆生育期的进行，氮磷钾配施处理根瘤重呈显著增加趋势，播后６５ ｄ 根瘤重比播后４０ ｄ 增加１７５ ｇ／ 株；氮磷处理根瘤重前后测定结果虽有变化，但远不及氮磷钾处理显著，只增加０６５ ｇ／ 株；无肥处理根瘤重前后测定结果无变化，始终处在低水平上。氮磷钾配施处理比氮磷处理增产１０５ ％ ～１４４ ％ ，比无肥处 理增产３２８ ％ ～６９４ ％ 。
In Tonghua alluvial and albic soil areas of nitrogen, phosphorus and potassium fertilization experiment on the impact of soybean yield. The results showed that with the growth of soybean, the nodule weight increased significantly with the application of N, P and K fertilization, and the nodule weight increased by 175 g / plant at 65 days after sowing than 40 days after sowing; Although the results were changed, but far less than the NPK treatment was significant, only increased 0 65 g / strain; no fertilizer before and after the determination of nodules did not change the results, and always at a low level. N, P and K fertilizers increased the yield by 10.5% ~ 14.4% compared with nitrogen and phosphorus treatments, and increased 32.8% ~ 69.4% than non-fertilizer treatment.