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
 Columbia Plateau Conservation Research Center: Pendleton, OR
 close



    Research

                    Research Projects
                                    Publications
                                    Collaborations
                                    News
                People

                    Staff Listing
                                    Careers


        


                    Related TopicsSearch small
                    Search
            
            ARS Home
                                About ARS
                                Contact Us




ARS Home Pacific West Area Pendleton, Oregon Columbia Plateau Conservation Research Center 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
                                            Gollany, Heroitem
                                            Wuest, Stewartitem
                                            Williams, Johnitem
                                            SCHILLINGER, WILLIAM - WASHINGTON STATE UNIVitem
                                            Baker, Ameliaitem
                                            Robertson, David

                                                         - *Dave*
  Submitted to: Agronomy Abstracts
                                    Publication Type: Abstract Only
                                    Publication Acceptance Date: 3/21/2003
                                    Publication  Date: 11/1/2003
                                    Citation: GOLLANY, H.T., WUEST, S.B., WILLIAMS, J.D., SCHILLINGER, W.F., BAKER, A.A., ROBERTSON, D.S. SUBSOILING INFLUENCE ON NUTRIENTS IN RUNOFF FOLLOWING RAINFALL SIMULATION. AGRONOMY ABSTRACTS. 2003.Interpretive Summary:
                                Technical Abstract: Runoff from frozen soil is a major contributor to water erosion and sedimentation in fields after summer fallow in the inland Pacific Northwest. Some producers have used subsoiling, a process of creating 30- to 45-cm deep pits to open a channel to unfrozen subsoil, as a practical solution to reduce runoff and erosion. The objective of this study was to quantify C, N, S, and P losses in runoff from subsoiled vs. control treatments. Two treatments, subsoiled and control, were established using a randomized complete block design with four replications on a Bagdad silt loam soil. After fall rains, a rotary subsoiler was used to create 45-cm-deep pits with 15-L capacity every 0.7 m^2 along to contour of the hillside.  In February, rainfall was simulated for 2 hr at a rate of 36 mm/hr. Runoff water was sampled periodically and analyzed for total and soluble C, N, S, and P.  Compared to control, decreases in total runoff and total C, N, and S values in the sediment were highly significant (P < 0.01) for the subsoiled treatment. Total sediment loss during simulated rain for the subsoiled and control treatments were 1313- and 3355-kg/ha, respectively. Total C, N, and S losses in the sediments were 24-, 2.3-, and 0.36-kg/ha for the subsoiled treatment, and 72-, 6.9-, and 1.0-kg/ha for the control treatments. Subsoiling reduced runoff and soil loss with consequent reduction of C, N, and S losses.


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