热带作物学报2025，Vol.46Issue(7)：1702-1715,14.DOI:10.3969/j.issn.1000-2561.2025.07.017
氮用量和基追肥氮比例对稻茬烤烟氮、磷、钾积累和产量、产值的影响
Effects of Nitrogen Application Rate and Basal-topdressing N Ratio on Accumulation of Nitrogen,Phosphorus and Potassium and Yield and Output Value of Paddy-tobacco
摘要
Abstract
The response of nitrogen,phosphorus and potassium nutrient accumulation,yield and output value of flue-cured tobacco in multi-planting area of tobacco-rice to the nitrogen application and basal-topdressing ratio was studied to provide a theoretical basis for the development of fertilizer application strategies for paddy-tobacco.Cultivar Yunyan 87 was used and three nitrogen application treatments(150 kg/hm2,165 kg/hm2 and 180 kg/hm2)and two basal-topdressing ratio of nitrogen treatments(3∶7 and 5∶5)were set up.The effects of nitrogen application and basal-topdressing ratio on the accumulation and distribution of nitrogen,phosphorus and potassium nutrients,also on yield,output value and fertilizer utilization of paddy-tobacco,and the contribution rate of nitrogen application and basal-topdressing ratio and the interaction to the accumulation of nitrogen,phosphorus and potassium were analysed using the effect value(η2p).The results showed that nitrogen,phosphorus and potassium nutrients accumulated by flue-cured tobacco were mainly allocated to tobacco leaves,and the proportion allocated to tobacco leaves decreased with the growth of flue-cured tobacco.With the increase of nitrogen application,nitrogen accumulation and tobacco yield and output value of flue-cured tobacco increased,meanwhile reducing the proportion of base fertilizer nitrogen could significantly increase the nitrogen accumulation of the tobacco plant and yield and output value of tobacco leaf,also significantly increase the utilization rate of nitrogen fertilizer and the partial productivity and the partial production benefit of nitrogen,phosphorus and potassium fertilizers.On average,nitrogen application and basal-topdressing ratio and the interactions contributed 42.89％,29.63％and 27.47％to nitrogen accumulation of flue-cured tobacco,and 38.62％,24.12％and 37.25％to phosphorus accumulation,and 41.22％,21.24％and 37.54％to potassium accumulation,and 62.13％,6.34％and 31.53％to yield,and 47.30％,14.74％and 37.95％to output.Throughout the reproductive pe-riod,nitrogen accumulation was relatively high in the nitrogen treatments of 180 kg/hm2 and the 3∶7 basal-topdressing N ratio.In the rosette stage and dome stage,the accumulation of phosphorus and potassium was relatively high in the nitrogen treatments of 180 kg/hm2 and 3∶7 basal-topdressing N ratio.The highest yield and output value were achieved in the nitrogen treatments of 180 kg/hm2 and 3∶7 basal-topdressing N ratio.Therefore,in the multi-planting area of tobacco-rice,the nitrogen application has the greatest influence on the accumulation of nitrogen,phosphorus and potas-sium nutrients in flue-cured tobacco,and the reduction of the proportion of base fertilizer nitrogen from 50％to 30％can increase the accumulation of nitrogen of tobacco leaf,which is conducive to the improvement of the yield and output value of tobacco leaf and the utilization rate of nitrogen fertilizer.关键词
稻茬烤烟/施氮量/基追肥氮比例/养分积累与分配/肥料利用率Key words
paddy-tobacco/nitrogen application/basal-topdressing N ratio/accumulation and distribution of nutrients/fertilizer utilization rate分类
农业科技引用本文复制引用
刘凌华,于大鹏,谢小丽,成明珠,邓小华,谭志鹏,李思军,吴文信,陈夏晔,马胤华,刘怡璟,宗毅,李旭..氮用量和基追肥氮比例对稻茬烤烟氮、磷、钾积累和产量、产值的影响[J].热带作物学报,2025,46(7):1702-1715,14.基金项目
郴州市烟草专卖局科技项目(No.CZYC2022JS06) （No.CZYC2022JS06）
吉林烟草工业有限责任公司科技项目(No.KJXM-2023-15). （No.KJXM-2023-15）
