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
 Cotton Production and Processing Research: Lubbock, TX
 close



    Research

                    Research Projects
                                    Publications
                                    Collaborations
                                    News
                People

                    Staff Listing
                                    CareersSearch small
                    Search
            
            ARS Home
                                About ARS
                                Contact Us




ARS Home Plains Area Lubbock, Texas Cropping Systems Research Laboratory Cotton Production and Processing 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
                                            Wanjura, Johnitem
                                            KELLEY, MARK - Texas Agrilife Extensionitem
                                            TAYLOR, RANDY - Oklahoma State Universityitem
                                            PORTER, WESLEY - Oklahoma State Universityitem
                                            BARNES, ED - Cotton, Incitem
                                            Pelletier, Mathewitem
                                            Holt, Gregory
  Submitted to: National Cotton Council Beltwide Cotton Conference
                                    Publication Type: Proceedings
                                    Publication Acceptance Date: 1/6/2014
                                    Publication  Date: 1/7/2014
                                    Citation: Wanjura, J.D., Kelley, M.S., Taylor, R.K., Porter, W.M., Barnes, E.M., Pelletier, M.G., Holt, G.A. 2014. Evaluation of a cotton stripper yield monitor. National Cotton Council Beltwide Cotton Conference. 481-493.Interpretive Summary: Managing crops with precision agriculture techniques requires the generation of yield maps to evaluate productivity across a field.  Yield monitors have been used primarily on cotton picker harvesters since the mid-1990's with limited adoption on cotton stripper harvesters.  A new commercial yield monitor was released for use on stripper harvesters in 2012 that uses microwave sensing technology to measure seed cotton flow.  The objective of this work was to evaluate the performance of this new yield monitoring system.  The yield measurement error of the new system was observed to be in the range reported for other previously released yield monitors and averaged 12% during our work in 2013.  The observed errors were related most to seed size and the amount of foreign material in the seed cotton.  When used to evaluate seed cotton yields for a replicated variety trial, the yield monitor did not report the same yields or statistical groupings by variety as did the reference scale system.  Therefore, it is not recommended at this time that the yield monitor be used as the only yield measurement tool in on-farm research studies.
                                Technical Abstract: The objective of this work was to evaluate the accuracy of a microwave sensor based yield monitor for measuring yield on a cotton stripper harvester and determine if the yield monitor can discriminate differences in yield to the same level as a reference scale system.  A new yield monitor was installed on a four-row John Deere 7460 cotton stripper in 2013 and used to harvest cotton at four locations in the Lubbock, TX area.  Yield monitor error varied with location and cultivar but averaged 12.2% on an absolute basis across all locations.  Errors were related most to seed size and foreign matter content parameters.  Consequently, when used to evaluate seed cotton yields for a replicated variety trial, the yield monitor did not report the same yields or statistical groupings by variety as did the reference scale system.  Therefore, it is not recommended at this time that the yield monitor be used as the only yield measurement tool in on-farm research studies.


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