江西农业学报2024，Vol.36Issue(11)：45-53,76,10.DOI:10.19386/j.cnki.jxnyxb.2024.11.007
旱地农田土壤生物和化学肥力关键影响因素分析
Analysis of Key Influencing Factors of Soil Biological Fertility and Chemical Fertility in Dryland Farmland
摘要
Abstract
Twenty representative dryland farmland soils from different regions of China were selected in this study.Arabidopsis thaliana was used as the indicator crop,and cultivated on the agar-solidified substrate of sterile soil extract to quantify its chemical fertility of soils,and its biological fertility was determined by inoculation of soil microbial community.The results showed that There were significant differences in soil biological fertility and chemical fertility in different regions.Regression analysis showed that biological fertility increased with the increase of annual average temperature,but decreased with the increase of latitude and soil pH value.Biological and chemical fertility were closely related to soil total organic carbon and mineral-associated soil carbon,but weakly related to soil total nitrogen and particulate organic carbon.The decrease in biological fertility with the increase of microbial biomass carbon and nitrogen suggested that the uncertainty of soil microbial biomass in predicting biological fertility.Soil biological fertility is significantly affected by site conditions and soil carbon and nitrogen components throughout the country.关键词
拟南芥/化学肥力/生物肥力/土壤/微生物Key words
Arabidopsis thaliana/Chemical fertility/Biological fertility/Soil/Microorganism分类
农业科技引用本文复制引用
卢巧改,苏晓曼,牛银星,司亚坤,李培培,韩燕来,田春丽,李芳..旱地农田土壤生物和化学肥力关键影响因素分析[J].江西农业学报,2024,36(11):45-53,76,10.基金项目
河南省自然科学基金优秀青年项目(242300421147) （242300421147）
国家自然科学基金面上项目(42377334) （42377334）
国家重点研发计划(2022YFD1500203) （2022YFD1500203）
河南农业职业学院科研创新团队项目(HNACKT-2020-06). （HNACKT-2020-06）
