A SYSTEMS APPROACH INCORPORATING SOIL TEST INFORMATION INTO SITE-SPECIFIC MANURE MANAGEMENT RECOMMENDATIONS
| dc.creator | Lambert, Dayton M. | |
| dc.creator | Malzer, Gary L. | |
| dc.creator | Lowenberg-DeBoer, James | |
| dc.date | 2017-04-01T19:26:32Z | |
| dc.date.accessioned | 2026-07-09T04:01:56Z | |
| dc.description | This report analyzes results of a variable rate manure trial designed to test the potential of site-specific manure (SSM) management. To estimate corn and soybean response to manure, a system of equations estimated with three stage least squares (3SLS) including continuous soil test information as well as discrete management zones is proposed. Net present values (NPV) over a corn and soybean growing cycle were highest for whole-field manure management strategy combined with a variable rate fertilizer (VRF) phosphorous, potassium, and lime program (WFM-VRF), followed by a variable rate manure (VRM) management strategy combined with a VRF program. The third best strategy is a WFM-VRF strategy following an extension recommendation rate of 3500 gallons (gal) acre-1 of applied manure. The VRM strategies may have environmental benefits because they result in the lower average manure loadings than either following extension recommendations or developing a field specific uniform rate plan. If higher manure loadings are environmentally acceptable, then the WFM-VRF strategy is an attractive alternative. | |
| dc.identifier | doi:10.22004/ag.econ.28623 | |
| dc.identifier | https://ageconsearch.umn.edu/record/28623/files/sp03-13.pdf | |
| dc.identifier | http://ageconsearch.umn.edu/record/28623 | |
| dc.identifier.uri | http://hdl.handle.net/123456789/543797 | |
| dc.language | eng | |
| dc.publisher | ||
| dc.source | http://ageconsearch.umn.edu/record/28623 | |
| dc.title | A SYSTEMS APPROACH INCORPORATING SOIL TEST INFORMATION INTO SITE-SPECIFIC MANURE MANAGEMENT RECOMMENDATIONS | |
| dc.type | Text |