套作红苕对烤烟生长及经济效益的影响

Effects of Intercropping Sweet Potato on Growth and Economic Benefit of Flue-Cured Tobacco

以南江3号烤烟为试材,研究当地优质红苕不同套作时间对烤烟生长及烤后烟叶质量和经济效益的影响。结果表明,套作红苕对烤烟上部叶的物理性状和主要化学成分具有一定影响;烤烟移栽后25天套红苕,比其它处理的单位面积产出率都高,纯收益为41 086.5元/hm2。实行烟苕套作,不仅增加复种指数,还能增加烟农收入。

With flue-cured tobacco variety Nanjiang 3 as material, the effects of intercropping time of sweet potato on their growth ,quality and economic benefit were studied .The results showed that intercropping sweet potato had certain influences on the physical properties and main chemical contents in upper leaves of flue-cured tobacco .Intercropping sweet potato after transplanted for 25 days, the flue -cured tobacco had the highest output rate with the net income of 41 086 .5 yuan per hectare .Intercropping sweet potato with to-bacco could not only raise the multiple cropping indexes , but also increase farmers ’ income .