烟草科技2026，Vol.59Issue(9)：42-50,9.DOI:10.16135/j.issn1002-0861.2025.0580
碳纳米溶胶对黔西南植烟土壤养分与微生物活性的影响
Effects of carbon nanosol on nutrients and microbial activity in tobacco-planting soils of Southwest Guizhou Prefecture
摘要
Abstract
To investigate the effects of carbon nanosol application in tobacco-planting soils of southwestern Guizhou Prefecture,field trials were conducted in Qianxiang Subdistrict of Anlong County,Yuzhang Town of Xingren City and Zhuchangping Town of Xingyi City.The effects of supplementary applications of carbon nanosol at different rates(T1:200 mL/plant;T2:400 mL/plant)on soil fertility based on conventional fertilization was examined.Ten indicators including soil pH value,alkali-hydrolyzable nitrogen,available phosphorus,available potassium,urease activity,sucrase activity,microbial biomass nitrogen,microbial biomass carbon,respiration rate,and respiratory quotient were measured and analyzed.Principal component analysis(PCA)and Mantel test were employed to explore the influence mechanisms of application rate effects and variations among experimental sites.The results showed that carbon nanosol application reduced soil pH value and affected soil nutrient contents and microbial properties across the different experimental sites.Compared with the control,the T1 treatment(200 mL/plant)demonstrated the most significant enhancement effects on available phosphorus,sucrase activity,microbial biomass carbon,microbial biomass nitrogen and soil respiration rate,with average increasing rates all exceeding 45%,while the increasing rates of alkali-hydrolyzable nitrogen and urease activity were comparatively smaller.The T2 treatment(400 mL/plant)significantly increased urease activity by an average of 60.5%and other indicators by 4.7%-31.9%.Principal component analysis showed that both application rate and experimental site resulted in the variations in soil indicators.Mantel test further revealed that soil respiration rate was more sensitive to carbon nanosol application rate.In conclusion,carbon nanosol can be regulated to effectively improve soil fertility in tobacco-planting areas in southwestern Guizhou,with 200 mL/plant as a proper application rate that significantly enhances soil nutrient contents and microbial activity.关键词
烟草/黔西南州/碳纳米溶胶/土壤养分/微生物活性Key words
Tobacco/Southwest Guizhou Prefecture/Carbon nanosol/Soil nutrient/Microbial activity分类
农业科技引用本文复制引用
曹钰敏,张辉红,马耀武,张仕祥,姜瑛..碳纳米溶胶对黔西南植烟土壤养分与微生物活性的影响[J].烟草科技,2026,59(9):42-50,9.基金项目
中国烟草总公司研发项目"山地烟区覆膜栽培'减量、回收、替代'绿色低碳技术研发与应用"(110202202030) （110202202030）
贵州省烟草公司黔西南州公司科技项目"'贵烟'黔西南基地烟叶高端原料保障技术开发"(202152230024134). （202152230024134）
