生物炭对山坡地烟叶产量和氮肥利用效率的影响效果评价

刘美菊,李江舟,计思贵,樊苗苗,谷星慧,张立猛,张劲伟,瞿兴,周文兵,林杉

Evaluation of Effect of Biochar on Tobacco Yield and Nitrogen Use Efficiency in Mountain Slope Areas

Meiju Liu,Jiangzhou Li,Sigui Ji,Miaomiao Fan,Xinghui Gu,Limeng Zhang,Jinwei Zhang,Xing Qu,Wenbing Zhou,Shan Lin

图2 地形（n=45）和生物炭（n=9）对烤烟产量和产值相对增幅的影响 “*”、“**”表示地形间在0.05、0.01水平差异显著;ns表示差异不显著。下同

Fig.2 Effects of topography (n=45) and biochar (n=9) on relative increase of yield and economic value in tobacco "*", "**" indicate statistically significant difference between mountain slope areas and plain between mountain areas at 0.05, 0.01 probability level; ns indicate no significant. The same below