施用生物炭对烤烟根系生长和经济性状的影响

摘要

To investigate the effects of biochar application on flue -cured tobacco root growth and the economic characters, and to study the effect of biochar application on the variety ‘Qinyan 96’.Field experiments were done in Ruyang with four biochar application amounts of 0,10,20,30,40 g/hole.The result showed that no significantly different on root volume,root dry weight and fresh weight in the early growth stage.But there were significant differences among the above three indexes after 90 d.When the biochar application amount were between 10 and 30 g/hole,the tobacco chemical components showed coordination,The yield,output value and proportion of upper grade cured -leaves were higher.%为探讨不同生物炭用量对烤烟根系发育和经济性状的影响，于2015年在汝阳县采用穴施的方法，设10、20、30和40 g／穴4个生物炭用量处理，以不施用生物炭为对照，研究生物炭对豫西烟叶‘秦烟96’的影响。结果表明，烟株生长发育前期根系体积、根干重和鲜重差异不显著，移栽90 d 后差异显著；生物炭用量每穴10~30 g，烟叶化学成分较协调，产量、产值和上等烟比例高于对照及40 g／穴的处理。