江西农业学报2023，Vol.35Issue(10)：14-20,25,8.DOI:10.19386/j.cnki.jxnyxb.2023.10.003
不同生物质炭基肥施用量对土壤养分及烤烟产质量的影响
Effects of Different Biochar-based Fertilizer Application Rates on Soil Nutrients and Yield and Quality of Flue-cured Tobacco
摘要
Abstract
To explore the effects of different biochar-based fertilizer application rates on soil nutrients,yield and quality of flue-cured tobacco,field plot experiment was used to analyze and compare the effects of different biochar-based fertilizer application rates(T0:0 kg/hm2,T1:500 kg/hm2,T2:1000 kg/hm2 and T3:1500 kg/hm2)on soil nutrients,agronomic traits,disease occurrence and yield of flue-cured tobacco and chemical composition of tobacco leaves.Compared with T0,the contents of organic matter,alkali-hydrolyzed nitrogen and available potassium in soil were significantly increased,but the content of available phosphorus was significantly decreased.T1 and T2 treatments significantly promoted the growth and development of tobacco plants in the middle and late stages,and T1,T2 and T3 treatments significantly improved the disease resistance of tobacco plants.The incidence of tobacco mosaic,climatic spot and tomato spot wilt decreased by 32.83%～69.17%,13.19%～86.38%and 45.36%～68.04%,respectively,compared with the control.The comprehensive performance of economic traits in T2 treatment was the best,and the yield,output value,average price and proportion of medium-grade tobacco increased by 1.99%,12.58%,10.39%and 10.87%,respectively,compared with the control.The application of biochar-based fertilizer significantly increased the potassium content and decreased the chlorine content of tobacco leaves,and the chemical composition availability index was significantly increased by 26.55%,28.47%and 20.79%,respectively.The correlation analysis showed that the chemical composition and availability index of tobacco leaf were closely related to soil nutrient content,and increased application of biochar may have a positive effect on the chemical composition and availability of tobacco leaves through regulating soil pH value,available phosphorus and available potassium content.In conclusion,increased application of biochar-based fertilizer can improve the physical and chemical condition of soil,promote the formation of tobacco yield and quality,and increase the availability of tobacco chemical components.Under the conditions of this experiment,the application of 1000 kg/hm2 biochar-based fertilizer had the best comprehensive effect on yield and quality.关键词
生物质炭/农艺性状/土壤养分/烟叶化学成分/经济性状/相关性Key words
Biochar/Agronomic trait/Soil nutrient/Chemical composition of tobacco leaves/Economic character/Correlation分类
农业科技引用本文复制引用
方远鹏,谢晏芬,赵宇婷,张艳艳,张国洪,方志鹏,王文波,韩家宝,王娜..不同生物质炭基肥施用量对土壤养分及烤烟产质量的影响[J].江西农业学报,2023,35(10):14-20,25,8.基金项目
中国烟草总公司云南省公司科技计划项目(2021530000242005). （2021530000242005）
