U.S. flagAn official website of the United States government
                    Here's how you know **Official websites use .gov**
                            
                            A **.gov** website belongs to an official government organization in the United States.
 **Secure .gov websites use HTTPS**
                            
                            A **lock** (                            
                              A locked padlock                                                      
                            
                            ) or **https://** means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.


Menu Agricultural Research Service
						
                    U.S. DEPARTMENT OF AGRICULTURE
 Agricultural Systems Research: Sidney, MT
 close



    Research

                    Research Projects
                                    Publications
                                    Collaborations
                                    News
                People

                    Staff Listing
                                    Careers


        


                    NPARL
                        NPARL
                                    Pest Management Research
                                    Grasshoppers: Their Biology, Identification and Management:Search small
                    Search
            
            ARS Home
                                About ARS
                                Contact Us




ARS Home Plains Area Sidney, Montana Northern Plains Agricultural Research Laboratory Agricultural Systems Research Research Publications at this Location





- ARS National Programs
- Search for a scientific manuscript
- Search for a research project
- ARS Software
- Programs and Projects
- Collaborations
- Subjects of Investigation
- Publications

Title:   Author  item
                                            Sainju, Upendra
  Submitted to: World Congress of Soil Science
                                    Publication Type: Proceedings
                                    Publication Acceptance Date: 2/9/2010
                                    Publication  Date: 8/1/2010
                                    Citation: Sainju, U.M. 2010. Management Practices Impact on Soil Nitrous Oxide Emission in the Northern Great Plains, USA. Proceedings of the 19th World Congress of Soil Science. p. 140-143.Interpretive Summary:
                                Technical Abstract: Management practices may influence soil N2O emission, a greenhouse gas responsible for global warming. The effects of irrigation, tillage, crop rotation, and N fertilization were evaluated on soil surface N2O flux and soil temperature and water content at the 0- to 15-cm depth from April to November in 2008 and 2009 in eastern Montana, USA. Treatments were two irrigation practices (irrigated and non-irrigated) and five cropping systems [conventional-tilled barley with N fertilization (CTBFN), conventional-tilled barley with no N fertilization (CTBON), no-tilled barley-pea with N fertilization (NTB-PN), no-tilled barley with N fertilization (NTBFN), and no-tilled barley with no N fertilization (NTBON)]. The N2O flux varied with changes in soil temperature and water content, peaking immediately following substantial precipitation and/or irrigation (>30 mm) over 7 d period. Cumulative N2O flux from April to November was greater in non-irrigated than in irrigated practice in 2008 and greater in CTBFN than in CTBON, NTB-PN, and NTBON in 2009. The flux was greater with N fertilization than without in 2009 and greater in 2008 than 2009. Increase in N substrate availability due to N fertilization and soil water availability due to irrigation and precipitation probably increased soil microbial activity that increased soil N2O emission.


Return to top


Connect with ARS Sign up


ARS Home
                            USDA.gov
                            Plain Writing
                            Policies & Links
                            Civil Rights Statements
                            FOIA
                            Accessibility Statement
                            Privacy Policy
                            Non-Discrimination Statement
                            Quality of Information
                            USA.gov
                            WhiteHouse.gov