Integrated soil fertility and yield trend in response to long-term fertilisation under the Chinese double rice-cropping systems

Xiuxia Yang, Hui Yan, Xiaohui Wang and Qingyin Shang
Additional contact information
Xiuxia Yang: Collegeof Land Resources and Environment, Jiangxi Agricultural University, Nanchang, P.R. China
Hui Yan: Collegeof Land Resources and Environment, Jiangxi Agricultural University, Nanchang, P.R. China
Xiaohui Wang: Nanchang Garden Science and Technology Research Institute, Nanchang, P.R. China
Qingyin Shang: Ministry of Education and Jiangxi Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Jiangxi Agricultural University, Nanchang, P.R. China

Plant, Soil and Environment, 2020, vol. 66, issue 1, 22-32

Abstract: Soil fertility is fundamental in determining crop productivity and sustainability in farming systems. A long-term fertiliser experiment in Chinese double rice-cropping systems initiated in 2011 was used in this study to gain an insight into a complete estimating of soil fertility. The six fertiliser treatments included mineral fertiliser (NP, NK, and NPK), combined NPK with farmyard manure (NPKM) or crop straw (NPKS), and no fertiliser application as a control. Results showed that grain yield averaged 5.5-13.0 t/ha/year, and significant increasing trends were observed in the phosphorus-applied plots (NP, NPK, NPKM, and NPKS), but the treatments without phosphorus applied (control and NK) resulted in declining trends in both early- and late-rice yields. After long-term rice cultivation, the contents of total and available phosphorus significantly declined in phosphorus-deficient plots compared to other treatments. Regression analysis showed that the improvement in grain yields was positively correlated with the increased soil fertility over treatments. Relative to the NPK treatment, the NPKM treatment greatly enhanced soil fertility from 0.50 to 0.78, and particularly dramatically increased the content of available soil phosphorus. Therefore, the high grain yield and soil fertility can be simultaneously achieved by long-term balanced fertiliser applications in Chinese double rice-cropping systems.

Keywords: Oryza sativa L.; rice production; climate change; nutrition; soil quality (search for similar items in EconPapers)
Date: 2020
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
http://pse.agriculturejournals.cz/doi/10.17221/365/2019-PSE.html (text/html)
http://pse.agriculturejournals.cz/doi/10.17221/365/2019-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:66:y:2020:i:1:id:365-2019-pse

DOI: 10.17221/365/2019-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 ().