生物炭和微量元素对烤烟生长及产质量的影响

Effects of Biochar and Micro Elements on Growth,Yield and Quality of Flue-cured Tobacco

以云烟87为材料,研究在施用常规肥的前提下增施生物炭或微量元素对烤烟生长、经济性状和化学成分的影响。结果表明,增施生物炭增加了株高、节距、叶面积,可以促进烤烟生长,提高了中上等烟比例,降低了烟叶总糖,增加了烟碱、钾含量;在常规施肥条件下,增施微量元素提高了烤烟产量、产值,提高烟叶经济性状,增加了烟叶总糖,降低了烟碱、氯和钾含量,使烟叶化学成分更协调,利于提高烟叶品质、增加烟叶安全性。综合分析,2种施肥组合对烤烟生产有一定促进作用,可进一步研究。

This experiment used Yunyan 87 as the material to study the effects of biochar or micro elements on the growth,economic characters and chemical compositions of flue-cured tobacco under the premise of applying conventional fertilizer.The results showed that adding biochar increased the plant height,pitch and leaf area,which could promote the growth of flue-cured tobacco,improve the proportion of middle and superior tobacco leaves,reduce the total sugar of tobacco leaves,increase the content of nicotine and potassium;under conventional fertilization conditions,the application of micro elements increased the yield and output value of flue-cured tobacco,improved the economic characters of tobacco leaves,increased total sugar in tobacco leaves,reduced the content of nicotine,chlorine and potassium,and made the chemical composition of tobacco leaves more harmonious.It was conducive to improve the quality of tobacco leaves and increase the safety of tobacco leaves.Comprehensive analysis,the two fertilization combinations had a certain promoting effect on the production of flue-cured tobacco,which could be further explored.