Chemical composition of soil organic carbon changed by long-term monoculture cropping system in Chinese black soil

Yunfa Qiao, Shujie Miao, Yingxue Li and Xin Zhong
Additional contact information
Yunfa Qiao: Nanjing University of Information Sciences and Technology, Nanjing, P.R. China
Yingxue Li: Nanjing University of Information Sciences and Technology, Nanjing, P.R. China
Xin Zhong: Nanjing University of Information Sciences and Technology, Nanjing, P.R. China

Plant, Soil and Environment, 2018, vol. 64, issue 11, 557-563

Abstract: Monoculture is common to meet commodity grain requirements in Northeast China. The effect of long-term monoculture on chemical composition of soil organic carbon (SOC) remains unclear. This study was done to evaluate how changes in chemical compositions of SOC responded to long-term monoculture. To achieve this objective, the chemical compositions of SOC in maize-soybean rotation, continuous soybean and continuous maize were characterized with the nuclear magnetic resonance technique. Two main components, O-alkyl and aromatic C, showed a wider range of relative proportion in monoculture than rotation system across soil profiles, but no difference was observed between two monoculture systems. Pearson's analysis showed a significant relationship between plant-C and OCH3/NCH, alkyl C or alkyl O-C-O, and the A/O-A was closely related to plant-C. The findings indicated a greater influence of monoculture on the chemical composition of SOC compared to rotation, but lower response to crop species.

Keywords: cultivation; organic carbon composition; soil profile; rotation; continuous cropping (search for similar items in EconPapers)
Date: 2018
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
http://pse.agriculturejournals.cz/doi/10.17221/492/2018-PSE.html (text/html)
http://pse.agriculturejournals.cz/doi/10.17221/492/2018-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:64:y:2018:i:11:id:492-2018-pse

DOI: 10.17221/492/2018-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 ().