Exogenous glucose modulated the diversity of soil nitrogen-related bacteria and promoted the nitrogen absorption and utilisation of peanut

Haiyan Liang, Liyu Yang, Qi Wu, Liang Yin, Cuiping Meng and Pu Shen
Additional contact information
Haiyan Liang: Shandong Peanut Research Institute/Chinese National Peanut Engineering Research Center, Qingdao, P.R. China
Liyu Yang: Shandong Peanut Research Institute/Chinese National Peanut Engineering Research Center, Qingdao, P.R. China
Qi Wu: Shandong Peanut Research Institute/Chinese National Peanut Engineering Research Center, Qingdao, P.R. China
Liang Yin: Shandong Peanut Research Institute/Chinese National Peanut Engineering Research Center, Qingdao, P.R. China
Cuiping Meng: Shandong Peanut Research Institute/Chinese National Peanut Engineering Research Center, Qingdao, P.R. China
Pu Shen: Shandong Peanut Research Institute/Chinese National Peanut Engineering Research Center, Qingdao, P.R. China

Plant, Soil and Environment, 2022, vol. 68, issue 12, 560-571

Abstract: Exogenous carbon (C) not only regulates plant growth but also provides energy for microbes and improves the soil environment. We hypothesised that exogenous C could improve plant growth by affecting the soil environment. Therefore, pot experiments were conducted and peanut cvs. Huayu 22(H) and NN-1(B) were used under three different treatments (the control, single nitrogen (N), and N combined with glucose (CN)). The results showed that the abundance and diversity of N-fixing bacteria are obviously influenced by the C and N, and exogenous C can promote the restoration of microbial diversity. The relative abundances of Burkholderiales were increased under HCN and BCN to 9.8% and 9.5%, respectively, compared to the control (3.9%, 2.5%). The abundance of N fixation bacteria increased mainly due to the soil nutrient change. In comparison with the single N treatment, the addition of the C significantly decreased the soil NH4+-N and NO3--N contents by 31.0% and 13.3%, respectively. And the activities of soil urease and nitrogenase were significantly increased. Compared to the control, single N significantly limited the root development, while the addition of C played a promoting role in root growth. Plant N accumulation increased compared with the control, but there was no significant difference between N treatment and CN treatment. These results indicated that exogenous C promoted soil microorganism activity and strengthened plant growth by changing the soil environment.

Keywords: Arachis hypogaea L.; legume; macronutrient; microbial community (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

Downloads: (external link)
http://pse.agriculturejournals.cz/doi/10.17221/275/2022-PSE.html (text/html)
http://pse.agriculturejournals.cz/doi/10.17221/275/2022-PSE.pdf (application/pdf)
free of charge

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlpse:v:68:y:2022:i:12:id:275-2022-pse

DOI: 10.17221/275/2022-PSE

Access Statistics for this article

Plant, Soil and Environment is currently edited by Kateřina Součková

More articles in Plant, Soil and Environment from Czech Academy of Agricultural Sciences
Bibliographic data for series maintained by Ivo Andrle ().