【摘要】 为寻求适合烤烟生产应用的水肥一体化水肥管理模式,开展不同水肥一体化模式在烤烟生产应用效应的研究。结果表明,与常规施肥灌溉模式相比,试验所设计的水肥一体化模式不仅能够显著促进烟株生长发育,促进烟株对钾素和干物质的积累,同时还能显著提高烟叶的产量和产值,以模式T₁和T₃应用效益最突出。综合T₁和T₃模式的水肥设计参数,全生育期总施氮量为165 kg/hm²,基追比为4∶6,还苗期和伸根期追施总追氮量的15%;N∶K₂O为1∶1,旺长期和成熟期分别追施总追氮量的70%和15%;N∶K₂O均为1∶3可作为烤烟水肥一体化技术的水肥管理模式应用于烤烟实际生产中。更多还原

【Abstract】 In order to find the appropriate fertigation pattern in flue-cured tobacco production,different flue-cured tobacco fertigation pattern were designed and put into used in order to find out its application effects on tobacco production.The result showed that all designed fertigation pattern especially pattern T₁ and T₃ could not only stimulate the growth of tobacco,increase the potassium and dry matter accumulation,but also enhance the yield and output value.Based on the design parameter of T₁ and T₃,165 kg/hm² act as the total nitrogen application rate,4∶6 act as dressing ration,the topdressing accounted for 15% of total nitrogen topdressing amount in transplanting seedling stage, root extending stage,and N :K₂O respectively act as 1∶1,1∶3.1∶3 can be considered as the reference model of fertigation pattern used in flue-cured tobacco production.更多还原