摘要： 以东北主栽填充型烤烟品种龙江911为试验材料,采用最优回归设计方法,建立了N、P、K肥与烤烟产量的回归效应模型,并对各因子和交互作用进行了分析,通过模型计算出获得最佳产量和效益的优化施肥方案。结果表明:烤烟产量随着磷肥和钾肥的增加而增加,为正相关关系。烤烟产量随着氮肥增加而降低,而与氮肥用量成负相关关系。N、P、K肥对产量的贡献率为磷肥>钾肥>氮肥。增施氮的经济效益最佳,净利润达到22 947.19元/hm²。在松花江流域烤烟生产区,推荐烟田的基础施肥量为:施氮量39.0～51.0 kg/hm²,施磷量44.4～67.0 kg/hm²,施钾量91.7～137.5 kg/hm²。

关键词: 烤烟, 肥料, 产量, 肥料模型, 交互作用

Abstract: Using filling flue-cured tobacco variety Longjiang 911 as the test materials,the optimum regression design method was conducted to eatablish regression effect models of N,P,and K fertilization rates and yield of filling flue-cured tobacco.The effects of the fertilization rates and their interactions were analyzed,and the optimization fertilizing plan from best yield and benefit through the model was calculated.The result showed that yield of filling flue-cured tobacco increased with P and K fertilizer,and relationship between yield of filling flue-cured tobacco and P,K fertilizer was positive.Yield of filling flue-cured tobacco decreased with N fertilizer,and relationship between yield of filling flue-cured tobacco and N fertilizer was negative.The percentage of fertilizers contribution to yield can be ranked PKN.The economic benefits from nitrogen fertilizer application was the best to reach 22 947.19 yuan/ha.It concluded that a comprehensive analysis on the regression effect models of N,P,and K fertilization rates and upper leaf nicotine content showed that the basal fertilization rates of N,P,and K for the tobacco production in Songhua River basin were recommended as 39.0-51.0,44.4-67.0,91.7-137.5 kg/ha,respectivly

Key words: Flue-cured tobacco, Fertilizer, Yield, Fertilization Interaction

中图分类号: 

• S143