不同冬油菜翻压量对安康地区烤烟产量和品质的影响

目的]研究不同冬油菜翻压量对安康地区烤烟生长发育、产量、品质的影响,为烟叶生产的可持续发展提供有益的参考。方法]通过田间小区试验研究不同冬油菜绿肥翻压量对烤烟生长发育以及烟叶产量、产值,烤烟农艺性状、外观品质以及化学成分含量的影响。结果]翻压适量的绿肥能够促进烟株的生长,尤其是叶片的开片,提高烟株干物质积累量及烤后烟叶的产量,改善烟叶的化学品质。当100%绿肥翻压量处理时,烟叶的产量、产值和上等烟比例最高,烟叶中的钾含量以及烟碱含量明显增加,其化学成分协调性与对照处理相当。结论]翻压绿肥量以100%处理为宜。

Effects of Different Burying Amount of Winter Rape on Yield and Quality of Flue-cured Tobacco in Ankang Area

Objective ] The aim was to study the effects of different burying amount of winter rape on yield and quality of flue-cured tobacco in Ankang Area, and provide a useful reference for tobacco leaves＇ sustainable development. Method ~ Field experiment was carried out to study the effects of different burying amount of winter rape on growth, yield, economical character, quality and chemical composition of flue- cured tobacco. Result ] The results showed that burying green manure promoted tobacco plant growth, especially leaf development, improve dry matter accumulation and leaf yield, and improved tobacco chemical quality. When burying green manure was 100%, the leaf yield, eco- nomic value and ratios of first-class leaf were the highest, K content of middle and low parts of leaves, and nicotine content of top and middle parts of leaves obviously increased. The harmony of chemical composition equaled the control. Conclusion] It suggested that it was advisable when burying green manure was 100%.