Short-term lime application impacts microbial community composition and potential function in an aci

删除或更新信息，请邮件至freekaoyan#163.com(#换成@)

本站小编 Free考研考试/2021-12-12

论文编号:
论文题目:	Short-term lime application impacts microbial community composition and potential function in an acid black soil
英文论文题目:	Short-term lime application impacts microbial community composition and potential function in an acid black soil
第一作者:	李森
英文第一作者:	lisen
联系作者:	王光华
英文联系作者:	wangguanghua
外单位作者单位:
英文外单位作者单位:
发表年度:	2021
卷:
期:
页码:
摘要:	Background and aims Soil acidification is a natural process that can be accelerated by intensive nitrogen fertilization. Lime application is a typical agricultural practice to enhance soil pH and increase nutrient availability for crop production. Our study aims to reveal how liming altered soil microbial community composition and potential function in the bulk and rhizosphere soils of soybean growing in an acid black soil. Methods A short-term soybean pot experiment was conducted in an acid black soil with the amendment of five different dosages of lime. Soybean plants were harvested and soil samples were collected at the initial flowering stage. Plant biomass, shoot height and root length, as well as soil chemical properties and total microbial activities of bulk soils were measured. The abundance and composition of microbial communities in bulk and rhizosphere soils were determined using qPCR and Illumina MiSeq sequencing, respectively. Results Liming significantly increased soybean growth and soil microbial activities, and altered soil properties such as soil pH, available phosphorus (AP), ammonium nitrogen (NH4+-N), nitrate nitrogen (NO3--N). Lime addition increased soil bacterial abundance and decreased fungal abundance in the bulk soils, but had no effect on microbial abundance in the rhizosphere soils as well as alpha-diversity of soil microbial community. Microbial community structures in bulk and rhizosphere soils were significantly varied with lime amendment that were related to soil chemical properties, of which soil pH was detected as the most important soil factors. In addition, liming significantly increased the potential functions of amino acid, cofactors and vitamins mechanisms of bacterial communities and the guild abundance of AM fungi. Conclusions Lime application altered soil properties, increased soil microbial activities, and changed soil microbial compositions and potential functions, which eventually resulted in the improvement of soybean plant growth.
英文摘要:	Background and aims Soil acidification is a natural process that can be accelerated by intensive nitrogen fertilization. Lime application is a typical agricultural practice to enhance soil pH and increase nutrient availability for crop production. Our study aims to reveal how liming altered soil microbial community composition and potential function in the bulk and rhizosphere soils of soybean growing in an acid black soil. Methods A short-term soybean pot experiment was conducted in an acid black soil with the amendment of five different dosages of lime. Soybean plants were harvested and soil samples were collected at the initial flowering stage. Plant biomass, shoot height and root length, as well as soil chemical properties and total microbial activities of bulk soils were measured. The abundance and composition of microbial communities in bulk and rhizosphere soils were determined using qPCR and Illumina MiSeq sequencing, respectively. Results Liming significantly increased soybean growth and soil microbial activities, and altered soil properties such as soil pH, available phosphorus (AP), ammonium nitrogen (NH4+-N), nitrate nitrogen (NO3--N). Lime addition increased soil bacterial abundance and decreased fungal abundance in the bulk soils, but had no effect on microbial abundance in the rhizosphere soils as well as alpha-diversity of soil microbial community. Microbial community structures in bulk and rhizosphere soils were significantly varied with lime amendment that were related to soil chemical properties, of which soil pH was detected as the most important soil factors. In addition, liming significantly increased the potential functions of amino acid, cofactors and vitamins mechanisms of bacterial communities and the guild abundance of AM fungi. Conclusions Lime application altered soil properties, increased soil microbial activities, and changed soil microbial compositions and potential functions, which eventually resulted in the improvement of soybean plant growth.
刊物名称:	Plant and Soil
英文刊物名称:	Plant and Soil
论文全文:
英文论文全文:
全文链接:
其它备注:
英文其它备注:
学科:
英文学科:
影响因子:
第一作者所在部门:
英文第一作者所在部门:
论文出处:
英文论文出处:
论文类别:
英文论文类别:
参与作者:	S. Li, J. J. Liu, Q. Yao, Z. H. Yu, Y. S. Li, J. Jin, X. B. Liu and G. H. Wang
英文参与作者:	S. Li, J. J. Liu, Q. Yao, Z. H. Yu, Y. S. Li, J. Jin, X. B. Liu and G. H. Wang

Short-term lime application impacts microbial community composition and potential function in an aci

本站小编 Free考研考试/2021-12-12

相关话题/

领限时大额优惠券,享本站正版考研考试资料!