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Dryland Soil Carbon and Nitrogen Stocks in Response to Cropping Systems and Nitrogen Fertilization.
- Source :
- Environments (2076-3298); Apr2024, Vol. 11 Issue 4, p70, 15p
- Publication Year :
- 2024
-
Abstract
- Innovative management practices are needed to mitigate greenhouse gas (GHG) emissions from the agricultural sector by enhancing soil carbon (C) and nitrogen (N) stocks, which serve as major reservoirs of C and N in the terrestrial ecosystem. The effect of cropping systems and N fertilization rates were examined on soil organic C (SOC) and soil total N (STN) stocks at the 0–120 cm depth from 2011 to 2018 in a dryland farm in the US northern Great Plains. Cropping systems were no-till continuous spring wheat (Triticum aestivum L.) (NTCW), no-till spring wheat–pea (Pisum sativum L.) (NTWP), no-till spring wheat–fallow (NTWF), and conventional till spring wheat–fallow (CTWF) and N fertilization rates were 0, 50, 100, and 150 kg N ha<superscript>−1</superscript> applied to spring wheat. The SOC and STN were greater for NTWP than other cropping systems at most N fertilization rates and depth layers. Increasing N fertilization rate increased SOC at 0–30 cm for NTWP and NTCW, but had a variable effect on STN for various cropping systems and soil depths. The NTWP with 50–100 kg N ha<superscript>−1</superscript> can enhance SOC and STN at 0–30 cm compared to other cropping systems and N fertilization rates in the US northern Great Plains. [ABSTRACT FROM AUTHOR]
- Subjects :
- CROPPING systems
NITROGEN in soils
CARBON in soils
DRY farming
NO-tillage
WHEAT
Subjects
Details
- Language :
- English
- ISSN :
- 20763298
- Volume :
- 11
- Issue :
- 4
- Database :
- Complementary Index
- Journal :
- Environments (2076-3298)
- Publication Type :
- Academic Journal
- Accession number :
- 176904007
- Full Text :
- https://doi.org/10.3390/environments11040070