钼肥对晒红烟产量和品质的影响

Effects of Molybdenum Fertilizer on Yield and Quality of Sun-Cured Tobacco

通过大田试验,研究不同叶面喷施钼肥次数对晒红烟产量、主要化学成分、中性致香物质和感官质量的影响。结果表明：叶面喷施钼肥能够显著提高烟叶产值、产量和1~3级烟比例;提高烟叶中总糖、还原糖、钾和钼的含量,降低烟碱、总氮和氯的含量,以叶面喷施两次钼肥表现较明显;提高烟叶中性香气成分总量和感官质量,且叶面喷施一次钼肥对上部叶更好,叶面喷施两次钼肥对中部叶更好。因此,喷施钼肥能够明显提高晒红烟产量和品质。

The sun- cured tobacco was selected to study the effects of foliar spraying molybdenum fertilizer with different times on yield and main chemical compositions,neutral aromatic substances and sensory quality through a field experiment. The results showed that foliar spraying molybdenum fertilizer could significantly improve the output value,yield and proportion of 1 ~ 3- level leaves. It could improve the contents of total sugar,reducing sugar,potassium and molybdenum,and reduce the contents of nicotine,total nitrogen and chlorine in tobacco leaves. The change trend was more evident with the foliar spraying molybdenum fertilizer for twice. It also could improve the total content of neutral aromatic substances and sensory quality. And foliar spraying molybdenum fertilizer for one time was better to the upper leaves and that for twice was better to the middle leaves. Thus,foliar spraying molybdenum fertilizer could obviously improve the yield and quality of sun- cured tobacco.