Biochar application to rice with 15N-labelled fertilizers, enhanced leaf nitrogen concentration and assimilation by improving morpho-physiological traits and soil quality
Joint Authors
Liang, He
Zhao, Quan
Aman Allah
Sayf Allah
Ali, Izhar
Iqbal, Anas
Wei, Shanqing
Cheng, Fangwei
Jiang, Ligeng
Jiang, Ligeng
Jilani, Sayyidah Wajihah
Anwar, Shazma
Khan, Zaid
Ahmad, Shakil
Wu, Ke
Source
Saudi Journal of Biological Sciences
Issue
Vol. 28, Issue 6 (30 Jun. 2021), pp.3399-3413, 15 p.
Publisher
Publication Date
2021-06-30
Country of Publication
Saudi Arabia
No. of Pages
15
Main Subjects
Abstract EN
Leaf nitrogen (N) concentration plays an important role in biochemical and physiological functions, and N availability directly influences rice yield.
However, excessive N fertilization is considered to be a root cause of environmental issues and low nitrogen use efficiency.
Therefore, the selection of appropriate nutrient management practices and organic amendments is key to maximizing nitrogen uptake and maintaining high and sustainable rice production.
Here, we evaluated the effects of different 15Nlabelled nitrogen sources (urea, ammonium nitrate, and ammonium sulfate at 315 kg ha_1) with or without biochar (30 t ha_1) on paddy soil properties, root growth, leaf gas exchange, N metabolism enzymes, and N uptake in the early and late seasons of 2019.
We found significant differences among N fertilizer sources applied with or without biochar (P < 0.05).
Across the seasons, the combination of biochar with N fertilizers significantly increased soil organic carbon by 51.21% and nitrogen availability by 27.51% compared with N fertilizers alone.
Correlation analysis showed that rice root morphological traits were strongly related to soil chemical properties, and higher root growth was measured in the biochar treatments.
Similarly, net leaf photosynthetic rate averaged 9.34% higher, chlorophyll (Chl) a concentration12.91% higher, and Chl b concentration 10.05% higher in the biochar treatments than in the biocharfree treatments across the seasons.
Notably, leaf 15N concentration was 23.19% higher in the biochar treatments in both seasons.
These results illustrated higher activities of N metabolism enzymes such as NR, GS, and GOGAT by an average 23.44%, 11.26% and 18.16% in the biochar treatments across the seasons, respectively.
The addition of biochar with synthetic N fertilizers is an ecological nutrient management strategy that can increase N uptake and assimilation by ameliorating soil properties and improving the morpho-physiological factors of rice.
American Psychological Association (APA)
Sayf Allah& Zhao, Quan& Wu, Ke& Ali, Izhar& Liang, He& Iqbal, Anas…[et al.]. 2021. Biochar application to rice with 15N-labelled fertilizers, enhanced leaf nitrogen concentration and assimilation by improving morpho-physiological traits and soil quality. Saudi Journal of Biological Sciences،Vol. 28, no. 6, pp.3399-3413.
https://search.emarefa.net/detail/BIM-1437212
Modern Language Association (MLA)
Sayf Allah…[et al.]. Biochar application to rice with 15N-labelled fertilizers, enhanced leaf nitrogen concentration and assimilation by improving morpho-physiological traits and soil quality. Saudi Journal of Biological Sciences Vol. 28, no. 6 (2021), pp.3399-3413.
https://search.emarefa.net/detail/BIM-1437212
American Medical Association (AMA)
Sayf Allah& Zhao, Quan& Wu, Ke& Ali, Izhar& Liang, He& Iqbal, Anas…[et al.]. Biochar application to rice with 15N-labelled fertilizers, enhanced leaf nitrogen concentration and assimilation by improving morpho-physiological traits and soil quality. Saudi Journal of Biological Sciences. 2021. Vol. 28, no. 6, pp.3399-3413.
https://search.emarefa.net/detail/BIM-1437212
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 3411-3413
Record ID
BIM-1437212