不同揭膜培土方式对旱地烤烟产量与质量的影响

Effects of Different Times of Stripping Film and Different Ways of Earth-up on Yield and Quality of Flue-cured Tobacco

以K326品种为试验材料,研究了多雨烟区不同揭膜时期和不同培土方式对旱地烤烟产量与质量的影响。结果表明,在大培土的情况下,团棵期揭膜处理的烤烟产量与产值最高,分别为2 578.95 kg/hm^2、58 772.0元/hm^2;在不大培土的情况下,打顶时揭膜的烤烟产量最高,为2 512.80 kg/hm^2,团棵期揭膜且增施肥料处理的产值最高,为58 416.0元/hm^2,不揭膜处理的产量及产值均最低;与对照(不大培土、不揭膜)相比,培土和揭膜均能不同程度地增加烟株的茎围,培土且揭膜处理增加了上部烟叶的长、宽值。由此可知,揭膜培土有利于上部叶开片及产量与质量的提高,其中以大培土且团棵期揭膜处理表现最优。

Taking K326 as test material the effects of different time of film uncovering and different ways of earth-up on the yield and quality offlue-cured tobacco in dry land were studied.The results were as follows in the case of large earth-up,the highest yield of tobacco leaves,2 578.95 kg/hm2,and production value,58 722.0 yuan/hm2,could be achieved when the films were uncovered at resettle stage.In the case of not large earth-up,thehighest yield,2 512.80 kg/hm2,was achieved when the films were uncovered during top pruning,and the highest production value,58 416.0 yuan/hm2,was achieved at the resettle stage with additional supply of fertilizers.Compared with the control groups,the treatment of earthing up and strippingfilm could both increase the stems girth of tobacco,and the treatment group with both earthing up and stripping film increased the length and widthvalues of upper tobacco leaf.Therefore,it can be concluded that film uncovering and earth-up were both conducive to opening size of the up leaves andimproving of yield and quality of tobacco leaves,and the best results can be found in the treatment of earth-up with films uncovering at resettle stage.