To definite the suitable proportion of N,P and K for late rice after tobacco in Ningxiang tobacco planting area, a field experiment was conducted to study the effect of different proportions of N,P and K on yield and nutrients accumula-tion and distribution of late rice after tobacco.The results showed that:Under soil conditions in this experiment (the con-tent of available phosphate and available potassium in soil before transplanting were 37.56 mg/kg and 227.25 mg/kg,re-spectively),the difference in yield among treatments with different proportions of N,P and K was not significant,and yield of 1∶1∶0 treatment was slightly higher,8 457.3 kg/hm2 ,which indicated that the late rice after tobacco should not apply P and K fertilizer because of the heavy fertilizer application in tobacco season.The differences in N,P and K accumulation and nutrients harvest indexes were significant among different treatments.Accumulation and distribution of N,P and K of late rice after tobacco were significantly affected by nutrients application rate and by proportion of N,P and K.%为明确宁乡烟区烟后晚稻适宜的氮磷钾比例，于2012年开展大田试验，比较研究不同氮磷钾配比对烟后晚稻的产量与养分积累分配的影响。结果表明：本试验条件下（移栽前土壤有效磷、速效钾含量分别为37.56、227.25 mg／kg），各氮磷钾配比处理间产量差异不显著，以1∶1∶0处理产量略高（8457.3 kg／hm2），说明烟草季重施肥条件下，宁乡烟区烟后晚稻可不施磷钾肥。各处理氮磷钾积累量与养分收获指数差异显著，烟后晚稻氮磷钾养分的积累与分配明显受到养分施用量的影响，同时也受到氮磷钾养分配比的显著影响。
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