生物炭对烤烟生长及烟叶品质的影响

The effects of biochar on the growth and quality of flue-cured tobacco

为探明生物炭在洛阳烟区烟叶生产上的应用效果,采用大田试验,研究了生物炭对烟株生长、烟叶经济性状、物理特性和化学成分的影响。结果表明:(1)生物炭处理可促进采烤期烟株生长,表现为移栽后120 d株高增加了11.81 cm,茎围增加了0.74 cm,可采烤叶片数平均增加了1.21片,生育期延长6~17 d;(2)生物炭可以使烟叶均价增加1.10元/kg,上等烟比例增加3.39%,每公顷产值增加1 919.25元;(3)生物炭处理可以显著提高烟叶钾和烟碱含量,提高烟叶填充值和弹性,改变单叶重和叶质重。

By field experiment,the application effects of biological carbon on tobacco plant growth,economiccharacters,the physical properties and chemical components of tobacco leaves were studied in Luoyang area.Theresults show that:(1)the plant height increases by11.81cm,and the stem girth increases by0.74cm,The number ofharvested leaves increase by2numbers after transplanting120d,and the growth period of tobacco plant is delayedfor6～17days.(2)with the application of biological carbon,the average price of tobacco leaves increase1.10yuan/kg,the proportion of high class leaves increase by3.39%,and the production value increased by1919.25yuan perhectare.(3)application of biological carbon can significantly increase the contents of potassium and nicotine intobacco leaves,and increase the filling power and elasticity of tobacco leaves,single leaf weight and unit leaf areaweight also changed.