NVND Study for Greenhouse gas Reduction through Agricultural Carbon Enhancement network in Sidney, Montana
Management practices, such as irrigation, tillage, cropping system, and N fertilization, may influence soil greenhouse gas (GHG) emissions. We quantified the effects of irrigation, tillage, crop rotation, and N fertilization on soil CO2, N2O, and CH4 emissions from March to November, 2008 to 2011 in a Lihen sandy loam in western North Dakota. Treatments were two irrigation practices (irrigated and non-irrigated) and five cropping systems (conventional-tilled malt barley [Hordeum vulgaris L.] with N fertilizer [CTBFN], conventional-tilled malt barley with no N fertilizer [CTBON], no-tilled malt barley-pea [Pisum sativum L.] with N fertilizer [NTB-PN], no-tilled malt barley with N fertilizer [NTBFN], and no-tilled malt barley with no N fertilizer [NTBON]). The GHG fluxes varied with date of sampling while peaking immediately after precipitation, irrigation, and/or N fertilization events during increased soil temperature. Both CO2 and N2O fluxes were greater in CTBFN under the irrigated condition but CH4 uptake was greater in NTB-PN under the non-irrigated condition than in other treatments. While tillage and N fertilization increased CO2 and N2O fluxes by 8 to 30%, N fertilization and monocropping reduced CH4 uptake by 39 to 40%. The NTB-PN, regardless of irrigation, might mitigate GHG emissions by reducing CO2 and N2O emissions and increasing CH4 uptake relative to other treatments. To account for global warming potential for such a practice, information on productions associated with CO2 emissions along with N2O and CH4 fluxes are needed.
Field | Value |
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Tags | |
Modified | 2021-12-30 |
Release Date | 2020-08-25 |
Frequency | Irregularly |
Identifier | 686b4236-9997-4d32-93b6-1bb490d3fa13 |
Spatial / Geographical Coverage Area | POLYGON ((-103.102579 48.103804, -103.100454 48.103804, -103.100454 48.102689, -103.102579 48.102689)) |
Publisher | U.S. Department of Agriculture - Agricultural Research Service |
Temporal Coverage | January 1, 2008 to December 31, 2011 |
License | |
Contact Name | Sainju, Upendra |
Contact Email | |
Public Access Level | Public |
Program Code | 005:040 - Department of Agriculture - National Research |
Bureau Code | 005:18 - Agricultural Research Service |
Source ID | 686b4236-9997-4d32-93b6-1bb490d3fa13 |
Harvest Source Title | Geodata Harvest |
Harvest Source URI | https://geodata.nal.usda.gov/geonetwork/srv/eng/csw |
Last Harvest Performed | Thu, 04/22/2021 - 01:01 |