Proceedings of the 2012 Central Plains Irrigation Conference

Colby, Kansas, February 21-22

February, 21-22, 2012, Colby Kansas

KANSAS IRRIGATION TRENDS Danny Rogers and Freddie Lamm	1
TILLAGE PRACTICES IN KANSAS: 2010 SURVEY RESULTS DeAnn Presley	16
TILLAGE AND CROP RESIDUE REMOVAL EFFECTS ON EVAPORATION, IRRIGATION REQUIREMENTS, AND YIELD Simon van Donk and Norman Klocke	22
OPTIMIZING CROPPING SYSTEMS UNDER LIMITED IRRIGATION CONDITIONS Alan Schlegel, Loyd Stone, Troy Dumler, and Freddie Lamm	31
ASSESSMENT OF PLANT AVAILABLE SOIL WATER ON PRODUCER FIELDS IN WESTERN KANSAS Freddie Lamm, Danny Rogers, Alan Schlegel, Norman Klocke, Loyd Stone, Rob Aiken, and L. Kent Shaw	37
A RETURN LOOK AT DORMANT SEASON IRRIGATION STRATEGIES Alan Schlegel, Loyd Stone, Troy Dumler, and Freddie Lamm	51
NEBRASKA AGRICULTURAL WATER MANAGEMENT NETWORK (NAWMN) UPDATE Gary Zoubek, Suat Irmak, Jenny Rees, and Brandy VanDeWalle	59
IRRIGATION CAPACITY IMPACT ON LIMITED IRRIGATION MANAGEMENT AND CROPPING SYSTEMS Joel Schneekloth, David Nielsen, and Alan Schlegel	68
WATER PRODUCTION FUNCTIONS FOR CENTRAL PLAINS CROPS Tom Trout and Walter Bausch	79
ERRATICITY OF SPRINKLER IRRIGATED CORN IN 2011 Freddie Lamm, Terry Howell, and Jim Bordovsky	88
CENTER PIVOT SPRINKLER NOZZLE REPLACEMENT AND MAINTENANCE Bill Kranz, Ray Glaser, Gene Ross, and Danny Rogers	102
CONSIDERATIONS FOR VARIABLE RATE IRRIGATION Jake Larue and Bob Evans	111
INVESTIGATING STRATEGIES TO IMPROVE CROP GERMINATION WHEN USING SDI Jim Bordovsky, Andy Cranmer, Paul Colaizzi, Freddie Lamm, Steve Evett, and Terry Howell	117
SDI, THE BASICS OF SUCCESSFUL SYSTEMS Freddie Lamm and Danny Rogers	133
HYDRAULIC CONSIDERATIONS FOR SDI SYSTEMS Slight corrections made 3-02-12 Freddie Lamm and Danny Rogers	150
USING THE K-STATE CENTER PIVOT SPRINKLER AND SDI ECONOMIC COMPARISON SPREADSHEET - 2012 Slight corrections made 3-02-12 Freddie Lamm, Dan O'Brien, Danny Rogers and Troy Dumler	159
INTEGRATING MULTIPLE IRRIGATION TECHNOLOGIES FOR OVERALL IMPROVEMENT IN IRRIGATION MANAGEMENT Slight corrections made 2-23-12 Terry Howell, Susan O'Shaughnessy and Steve Evett	170
USING SOIL WATER SENSORS TO IMPROVE IRRIGATION MANAGEMENT Slight corrections made 2-21-12 José L. Chávez and Steve Evett	187
USING PLANT CANOPY TEMPERATURE TO IMPROVE IRRIGATED CROP MANAGEMENT Paul Colaizzi, Susan O'Shaughnessy, Steve Evett, and Terry Howell	203
CROP SELECTIONS AND WATER ALLOCATIONS FOR LIMITED IRRIGATION Norm Klocke, Troy Dumler, Loyd Stone and Steven Briggeman	224
INTRODUCING THE WEB-BASED VERSION OF KANSCHED: AN ET-BASED IRRIGATION SCHEDULING TOOL Danny Rogers	230
PROPOSED PROCEDURES FOR LIMITED IRRIGATION FOR CROP INSURANCE Jay Waechter	237