Soil Plant Nutrient Research (SPNR) Site Logo
ARS Home About Us Helptop nav spacerContact Us En Espanoltop nav spacer
Printable VersionPrintable Version     E-mail this pageE-mail this page
Agricultural Research Service United States Department of Agriculture
Search
  Advanced Search
 
Programs and Projects
Subjects of Investigation
 

Research Project: MANAGEMENT PRACTICES TO MITIGATE GLOBAL CLIMATE CHANGE, ENHANCE BIO-ENERGY PRODUCTION, INCREASE SOIL-C STOCKS & SUSTAIN SOIL PRODUCTIVITY...

Location: Soil Plant Nutrient Research (SPNR)

Title: Nitrous Oxide Emissions from Several Nitrogen Sources Applied To A Strip-Tilled Corn Field

Authors

Submitted to: Fluid Fertilizer Foundation Symposium Proceedings
Publication Type: Proceedings
Publication Acceptance Date: January 12, 2011
Publication Date: April 20, 2011
Citation: Halvorson, A.D., Del Grosso, S.J., Jantalia, C. 2011. Nitrous Oxide Emissions from Several Nitrogen Sources Applied To A Strip-Tilled Corn Field. In Proc. of the 2011 Fluid Forum, Feb. 20-23, Scotsdale, AZ. Fluid Fertilizer Foundation, Manhattan, KS. 28:21-27.

Interpretive Summary: Nitrogen (N) fertilizer source (urea, ESN, SuperU, UAN, UAN+AgrotainPlus, UAN+Nfusion) effects on nitrous oxide (N2O) emissions from a clay loam soil in strip-tilled (ST), irrigated continuous corn production were evaluated to determine if N source selection could be a mitigation option for reducing N2O emissions from cropping systems. Each N source was surface band applied (202 kg N/ha) near the corn row and watered into the soil the day after application, including a subsurface band application of ESN (ESNssb). Treatments included a check (no N applied) located in separate plots and a blank treatment (no N applied) located within the N source plots. With the exception of ESNssb, all N sources had significantly lower growing season N2O emissions than dry granular urea. Cumulative increases in daily N2O fluxes were more rapid for urea and UAN than the other N sources following N application. The enhanced efficiency fertilizers sources showed potential for reducing N2O emissions. Corn grain yields in 2010 did not vary among N sources, but were greater than the blank or check treatments. The data suggest that N source selection can be a mitigation tool for reducing N2O emissions in irrigated cropping systems under strip-till in the Central Great Plains. publication may be viewed at www.fluidfertilizer.com

Technical Abstract: We evaluated the effects of nitrogen (N) source on nitrous oxide (N2O) emissions from a clay loam soil that was in strip-tilled (ST), irrigated continuous corn production in 2010 near Fort Collins, CO. Emissions were monitored from six different inorganic N fertilizer sources (urea, ESN1, SuperU, UAN, UAN+AgrotainPlus, UAN+Nfusion). Each N source was applied at a rate of 202 kg N/ha, surface band applied near the corn row and watered into the soil the day after application including a subsurface band application of ESN (ESNssb). A check treatment (no N applied since 2000) located in separate plots and a blank treatment (no N applied) located within the N source plots were included. All treatments except the check were located in plots ST in 2009 that had received 202 kg N/ha of ESN. Nitrous oxide fluxes were measured during the growing season using static, vented chambers for gas sample collection, one to three times per week, and analyzed with a gas chromatograph. With the exception of ESNssb, all N sources had significantly lower growing season N2O emissions than dry granular urea. Cumulative increases in daily N2O fluxes were more rapid for urea and UAN than the other N sources following N fertilizer application. The enhanced efficiency fertilizers (polymer-coated, stabilized, and slow release) sources showed potential for reducing N2O emissions during the 2010 growing season. Corn grain yields in 2010 were not significantly different among N sources, but greater than the blank or check treatments with no N applied. These results indicate that N source selection can be of value in reducing N2O emissions in irrigated cropping systems under strip-till in the Central Great Plains. publication may be viewed at www.fluidfertilizer.com

   

 
Project Team
Follett, Ronald - Ron
Delgado, Jorge
Hunter, William
Del Grosso, Stephen - Steve
Manter, Daniel
 
Publications
   Publications
 
Related National Programs
  Climate Change, Soils, and Emissions (212)
 
Related Projects
   USDA AGRI AND FORSTRY GREENHOUSE GAS INVENT. AND EVALUATE THE POTENTIAL OF DIFF. CROPPING SYSTEMS, INCL. BIOFUELS, TO MITIGATE GHG EMISSIONS
   CONTINUATION OF GRACENET STUDY IN PRESQUE ISLE, ME
   A SYSTEMS APPROACH TO UNDERSTAND THE INTERACTIONS OF POTATOES WITH THEIR SOIL MICROBIAL ENVIRONMENT
   ROLE OF DUNG BEETLES IN NUTRIENT CYCLING, SOIL CARBON SEQUESTRATION AND GREENHOUSE GAS EMISSION IN SEMIARID RANGELAND ECOSYSTEMS
 
 
Last Modified: 05/25/2013
ARS Home | USDA.gov | Site Map | Policies and Links 
FOIA | Accessibility Statement | Privacy Policy | Nondiscrimination Statement | Information Quality | USA.gov | White House