江西农业学报2023，Vol.35Issue(10)：80-86,7.DOI:10.19386/j.cnki.jxnyxb.2023.10.013
红壤条件下不同土壤改良剂对土壤氮供应和烟株抗病性的影响
Effects of Different Soil Amendments on Soil Nitrogen Supply and Disease Resistance of Tobacco Plants under Red Soil Conditions
摘要
Abstract
In this study,K326 was used as the study material and chemical fertilizer treatment as the control to investigate the effects of different soil amendments(organic fertilizer and biochar)on the growth,yield and economic benefits of tobacco plants and soil nitrogen supply capacity under red soil conditions.The results showed that:(1)The growth of tobacco plants in biochar and organic fertilizer treatments was better than that in chemical fertilizer treatment.The growth of tobacco plants in biochar treatment was better than that in organic fertilizer treatment during the resettling period,but the opposite was true during the vigorous growing period and the mature period.(2)Compared with chemical fertilizer treatment,the incidence of green blight was reduced by 6.70%and 21.13%,the incidence of black shin disease were reduced by 84.78%and 69.57%,and the incidence of leaf blight were reduced by 33.33%and 16.67%in organic fertilizer treatment and biochar treatment,respectively.(3)The order of yields and economic benefits of tobacco,the proportion of medium and top-quality tobacco was organic fertilizer treatment＞biochar treatment＞chemical fertilizer treatment.Compared with the chemical fertilizer treatment,the yields of the organic and biochar treatments were increased by 3.85%and 2.22%,the production value was increased by 4.94%and 3.21%,and the proportion of medium-grade tobacco increased by 3.75%and 2.50%,respectively.(4)The soil N supply capacity of biochar and organic fertilizer treatments was better than that of chemical fertilizer treatment.The soil N supply capacity of biochar treatment was better than that of organic fertilizer treatment in the resettling period,but the opposite was true during the vigorous growing period and the mature period.In conclusion,the flue-cured tobacco in organic fertilizer treatment under dryland red soil conditions was better than that of biochar treatment,which could help to improve tobacco yield and increase the soil improvement.关键词
烤烟/红壤/生物炭/有机肥/土壤供氮能力Key words
Flue-cured tobacco/Red soil/Biochar/Organic fertilizer/Soil nitrogen supply capacity分类
农业科技引用本文复制引用
张鲁民,杨焕文,何建忠,龙云生,周磊,吕亚媚,吕凯,徐照丽,欧阳铖人..红壤条件下不同土壤改良剂对土壤氮供应和烟株抗病性的影响[J].江西农业学报,2023,35(10):80-86,7.基金项目
国家重点研发计划(2022YFD1901500) （2022YFD1901500）
云南省烟草公司科技计划项目(20235300000241020) （20235300000241020）
湖南中烟工业有限责任公司项目(KY2020JD0008). （KY2020JD0008）
