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

表4 地形和生物炭对烟株氮素吸收量和氮肥利用率的二因素方差分析（P值）结果

Table 4 Results of two-factor analysis of variance (P value) for nitrogen uptake and agronomic use efficiency between topography and biochar

处理 Treatment 氮素吸收量 Nitrogen uptake 氮肥农学利用率 Nitrogen agronomic use efficiency 氮肥回收利用率 Nitrogen fertilizer recovery efficiency 氮素表观损失 N apparent loss 地形Topography 0.001 0.001 0.001 0.001 生物炭Biochar 0.001 0.001 0.027 0.001 地形×生物炭Topography×Biochar 0.5718 0.9724 0.9272 0.5032