现代农业科技Issue(24)：23-28,6.DOI:10.3969/j.issn.1007-5739.2023.24.007
生物炭负载NH4+-N对烤烟农艺性状与氮素吸收利用的影响
Effect of Biochar-loaded NH4+-N on Agronomic Traits,Nitrogen Absorption and Utilization of Flue-cured Tobacco
马晓刚 1张锦韬 2杜小冰 2卢珊 3武东玲 4李梦竹 4王惠4
作者信息
- 1. 中国农业科学院烟草研究所,山东青岛 266101
- 2. 湖南中烟工业有限责任公司,湖南长沙 410000
- 3. 民盟鹰潭市委会,江西鹰潭 335000
- 4. 河南省烟草公司洛阳市公司,河南洛阳 471000
- 折叠
摘要
Abstract
Using biochar to reuse NH4+-N in non-point source polluted water bodies for farmland is of great significance for reducing the application of chemical nitrogen fertilizers.Under equal nitrogen content(90 kg/hm2)conditions,this study investigated the effects of different proportions of biochar-loaded NH4+-N replacing nitrogen fertilizer(biochar-loaded NH4+-N accounting for 0%,20%,40%,60%,80%,and 100% of total nitrogen,respectively)on the agronomic traits,nitrogen absorption and utilization of flue-cured tobacco.The results showed that 60% substitution ratio was most beneficial for improving the agronomic traits of flue-cured tobacco,with the largest stem circumference,the most effective leaf numbers,the maximum leaf length,and the maximum leaf area.Meanwhile,the 60% substitution ratio could significantly improve the biomass,nitrogen fertilizer apparent utilization efficiency,nitrogen fertilizer agronomic efficiency,nitrogen fertilizer physiological efficiency,and nitrogen fertilizer partial productivity of flue-cured tobacco.It can be seen that biochar-loaded NH4+-N can′t completely replace ordinary chemical nitrogen fertilizer,and 60% is the optimal substitution ratio.关键词
生物炭负载NH4+-N/烤烟/农艺性状/生物量/氮素利用效率Key words
biochar-loaded NH4+-N/flue-cured tobacco/agronomic trait/biomass/nitrogen utilization efficiency分类
农业科技引用本文复制引用
马晓刚,张锦韬,杜小冰,卢珊,武东玲,李梦竹,王惠..生物炭负载NH4+-N对烤烟农艺性状与氮素吸收利用的影响[J].现代农业科技,2023,(24):23-28,6.
