central plains irrigation short course proceedings · 2018-06-03 · central plains irrigation...
TRANSCRIPT
Central Plains Irrigation Short Course Proceedings
February 13 and 14, 1989 Colby, Kansas Crop Water Use
R. Wayne Shawcroft 1-6
Reasonable Cost Irrigation
Danny H. Rogers 7-11
Center Pivot Uniformity for Chemigation
Dale F. Heermann 12-26
Selecting Sprinkler Packages with Tillage Practice Interaction
William Kranz 27-38
Changing from Continuous Flow Irrigation to Cablegation or Surge Irrigation
Israel Israeli 39-49
Nebraska Surge Irrigation Results
C. Dean Yonts & Dean E. Eisenhauer 50-56
Workshop C -- Irrigation System Conversions
Harold R. Duke 57-64
Irrigation Pumping Plant Alternatives
Norman L. Klocke & Richard T. Clark 65-75
Concepts of Irrigation Scheduling
Danny H. Rogers 76-81
Irrigation Scheduling and Water Quality Concerns
William Kranz 82-88
Limited Irrigation and Crop Rotations Gary W. Hergert, Norman L. Klocke, Paul T. Nordquist, Gail A. Wicks, & Richard T. Clark
89-96
Crop Responses under Various Irrigation Scheduling Criteria
Freddie R. Lamm 97-104
Deficit Irrigation Planning
Derrel Martin 105-114
Soil-Water-Plant Relationships
Richard D. Black & DeLynn R. Hay 115-122
Managing Deficit Water Supplies Jack T. Musick
123-145
February 5 and 6, 1990 Wray, Colorado Overview of New Developments in Sprinkler Irrigation
Dale F. Heermann 5-12
Workshop A -- Low Energy Precision Applications (LEPA) for Center Pivot Machines
L. New, C. Buchleiter, W. Spurgeon, & B. Unruh
13-18
LEPA Irrigation Project Report
Bill Spurgeon 19-20
Workshop B -- Selecting Sprinkler Packages for Specific Conditions
William Kranz, Dale Heermann, Larry Brisendine, & Les Jochens
21-28
Workshop C -- Center Pivot Runoff
Danny H. Rogers & Freddie R. Lamm 29-35
Workshop D -- Chemigation – Safety, Equipment and Recommendations
William M. Lyle, Gary Newton, R. Wayne Shawcroft, & Stan Pilcher
36-43
Why Irrigation Water Management
N. L.. Klocke, D. G. Watts, W. L. Kranz, & K. G. Hubbard
44-52
The Impact of Irrigation and Nitrogen Management and Vadose Zone Conditions on Ground Water Contamination by Nitrates
Darrel Watts 53-63
Nitrogen Management for Sprinkler Irrigation
James S. Schepers 64-70
Irrigation Scheduling with Atmometers
Israel Broner 71-80
Computerized Irrigation Scheduling and Radio Control for Center Pivots
Gerald W. Buchleiter & Kenneth Goeglein 81-84
Irrigation Scheduling with Personal Computers
Ronald Roeber, Norman L. Klocke, & Terry Boekstadter
85-91
Drip Irrigation of Corn in Kansas Danny H. Rogers, Harry L. Manges, & William E. Spurgeon
92-96
February 5 and 6, 1991 North Platte, Nebraska Furrow Irrigation Management
Israel Broner & Joel Cahool 1-22
Managing Furrow Irrigation Systems Dean E.. Eisenhauer, David L. Varner, C. Dean Yonts, & Wayne Liesemeyer
23-33
Fundamentals of Surge Irrigation C. Dean Yonts, Dean E. Eisenhauer, & Joel E. Cahoon
34-41
Application of Surge Irrigation C. Dean Yonts, Dean E. Eisenhauer, & Joel E. Cahoon
42-51
Sprinkler Irrigation Basics Dale F. Heermann
52-58
Characteristics of Sprinkler Packages Les Jochens
59-63
Irrigation with LEPA
Gerald W. Buchleiter 64-68
Sprinkler Evaporation Losses and Efficiency
Terry A. Howell, Arland D. Schneider, & Judy A. Tolk
69-89
Minimum Center Pivot Design Capacities Bill Kranz, Greg Lackas, & Derrel Martin 90-96
Irrigation Systems/Conversions Pumping Plants Harold R. Duke
97-100
Considerations When Converting from Flood to Pivot Irrigation
Danny H. Rogers
101-104
Planning for Deficit Irrigation Derrel Martin, Norman Klocke, & Gary Hergert
105-116
Stretching Limited Water Supplies G. W. Hergert, J. P. Schneekloth, & N. L. Klocke
117-121
Irrigation Pumping Plant Alternatives Norman L. Klocke & Richard T. Clark
122-126
Runoff Control Practices William Kranz 127-135
The Nebraska Microcomputer Irrigation Scheduling Software
Ron Roeber & Norm Klocke 136-140
LEPA Irrigation Project Report William E. Spurgeon & Thomas P. Makens 141-144
LEPA Runoff Project Report William E. Spurgeon & Thomas P. Makens 145-147
Irrigation Scheduling with Atmometers Israel Broner 148-157
Groundwater in the Nebraska Panhandle Steven S. Sibrary 158-162
Nitrogen Management and Inhibitors Jim Schild 163-166
Nitrogen Management: Proper Accounting and Utilization of Nitrogen Resources
Richard B. Ferguson 167-173
Elm Creek Water Quality Project Webster County Cooperative Extension &
SCS 174-183
Mid-Nebraska Water Quality Demonstration Project
Andrew Christiansen 184-185
An Overview of Irrigation Scheduling Techniques
Joel Cahoon 186-189
Economic Considerations in Water Management
Roger Selley & Joel Cahoon 190-194
Cutting Irrigation Fuel Costs
Thomas W. Dorn 195-200
Tailwater Recovery System Operation and Design
Steve Moran 201-203
February 4 and 5, 1992 Goodland, Kansas Is One Sprinkler System Good for All?
Dale F. Heermann 1-4
How Much Water Do I Apply
Harold R. Duke 5-8
Evapotranspiration and Irrigation Capacity Terry A. Howell 9-13
LEPA, Concept and System William M. Lyle 14-16
LEPA Project Report William E. Spurgeon & Thomas P. Makens 17-19
Center Pivot Irrigation Energy Conservation Project for Western Nebraska
C. Dean Yonts, Derrel Martin, & LaVerne Stetson
20-22
Effect of System Capacity and Nozzle Type on Corn Production
Freddie R. Lamm 23-25
Furrow Irrigation Management Israel Broner, Joel Cahoon, & Harry Manges 26-48
Planning for Deficit Irrigation Derrel Martin, Norman Klocke, & Gary Hergert
49-64
Economics of Irrigation Efficiency Improvements and System Conversions
Danny H. Rogers, Kevin C. Dhuyvetter, Mark E. Nelson, & Ron F. Meyers
65-81
Irrigation Water Quality Implications Richard D. Black 82-85
Herbicide Mass Transport from Agricultural Fields in Kansas
Philip Barnes 86
Drip Irrigation for Corn Production Freddie R. Lamm, William E. Spurgeon, Harry L. Manges, & Danny H. Rogers
87-92
Kansas Requirements for Irrigation Water Conservation Plans
Matt A. Scherer, III 93-95
Writing Irrigation Water Conservation Plans Harold R. Blume 96-98
Irrigation Development Plans in GMD #4 Ray Luhman 99-100
Evaluation of Irrigation Water Conservation Plans L. Kent Shaw 101-102
February 2 and 3, 1993 Sterling, Colorado Pesticide Transport in Runoff from Agricultural Fields
Philip Barnes 1-4
Fertigation Through Surge Valves Richard C. Bartholomay & Daniel F. Champion
5-15
Management Considerations in Surged Flow Irrigation
Joel Cahoon 16-25
Soil Factors and Yield Variability in Furrow-Irrigated Corn
Richard B. Ferguson 26-31
Low Pressure Spray Mode and Tillage Management for Corn
W. E. Spurgeon, D. L. Martin, & C. D. Yonts 32-42
Reducing Sprinkler Water Losses Arland D. Schneider & Terry A. Howell 43-46
Well Capacity, Crop Water Use, & Irrigation Scheduling: Important Factors in Irrigation Management
Richard J. Wenstrom 47-52
Kansas: State Water Law and Current Issues Danny H. Rogers 53-55
February 7 and 8, 1994 Kearney, Nebraska Water Quality Programs in the Tri-Basin Natural Resources District
Kevin Breece 1-8
Corn Management System for Reducing Goundwater Contamination
Kirk Thompson & Israel Broner 9-11
Surface Irrigation Management Dean Eisenhauer, Joel Cahoon, & Chuck Burr
12-15
Nitrogen Management Activities at the MSEA Site James S. Schepers 16-21
Monitoring Management Effects on Ground Water Quality
Roy F. Spalding 22-28
The Nebraska Wellhead Protection Program and its Possible Impacts on Agriculture
Bruce V. Hanson 29-32
Interstate Water Compacts Donald Blankenau 33-34
Plugging Abandoned Wells DeLynn Hay 35-41
Surge Irrigation Extension Education Programs Kelly J. Wertz 42-47
Surge Irrigation Management
Kelly Wertz, Joel Cahoon, & C. Dean Yonts 48-52
Evaluating and Fine Tuning Furrow Irrigation Systems
Joel Cahoon & Dean Eisenhauer 53-65
Sprinkler Devices Ron Schultz 66-69
Matching Sprinkler Packages with Field Conditions
Bill Kranz 70-79
The Effects of Conversion on the Pumping Plant
Danny H. Rogers 80-94
Considerations in Switching from Furrow to Sprinkler Systems
Roger Selley 95-97
Design and Management Considerations for Subsurface Drip Irrigation Systems
Freddie R. Lamm, Danny H. Rogers, & William E. Spurgeon
98-106
Subsurface Drip Irrigation Research for Corn Freddie R. Lamm, William E. Spurgeon, Harry L. Manges, & Danny H. Rogers
107-110
An Economic Analysis of Subsurface Drip Irrigation for Corn
Mark E. Nelson & Kevin C. Dhuyvetter 111-125
High Frequency Low Pressure In-Canopy Sprinkler Irrigation
M. A. Vela Reyes, W. E. Spurgeon, & D. J. Tomsicek
126-131
February 7 and 8, 1995 Garden City, Kansas Crop Water Requirement or Irrigation Water Requirement
Gary A. Clark 1-4
Evapotranspiration (ET) or Crop Water Use (NebGuide G90-992)
Norman L. Klocke, Kenneth G. Hubbard, William L. Kranz, & Derrell G. Watts
5-8
Furrow Irrigation Harry L. Manges 9-14
Ridge Tillage Research in Western Kansas Alan Schlegel & Kevin Dhuyvetter 15-23
Surge Irrigation Management (reprinted from 1994 Central Plains Proceedings)
Kelly Wertz, Joel Cahoon, & C. Dean Yonts 24-28
Application of Surge Irrigation in Colorado Compiled by Israel Broner
29-42
Center Pivot Sprinkler Irrigation Requirements for Corn in Northwest Kansas
F. R. Lamm & D. H. Rogers 43-48
Variable Applications of Water and Chemicals Through Center Pivot Sprinkler Systems
G. W. Buchleiter, D. F. Heermann, & H. R. Duke
49-54
How Much Water Do I Apply? Harold R. Duke 55-59
Reducing Sprinkler Water Losses
Arland D. Schneider & Terry A. Howell 60-63
Uniformity of In-Canopy Center Pivot Sprinkler Application in Fully Developed Corn Canopies
Freddie R. Lamm 64-72
Sprinkler Package Option Effects on Runoff—General Guidelines
W. E. Spurgeon, D. H. Rogers, & W. Sothers 73-91
Economics of Converting from Flood Irrigation to Center Pivot Sprinkler Irrigation
K. C. Dhuyvetter 92-100
Pumping Plant Modifications Harold R. Duke 101-106
Irrigation and Crop Management for Limited Water Supplies
N. L. Klocke, J. P. Schneekloth, R. T. Clark, & G. W. Hergert
107-114
Wide-Spaced Furrow or Band Irrigation as a Tool for Deficit Irrigation
John F. Stone 115-121
Irrigation Scheduling: Determining Crop Water Use
Michael A. Kizer 122-127
Charting Soil Water—A Tool for Irrigation Scheduling
Norman L. Klocke & Joel E. Cahoon 128-132
Well Capacity, Crop Water Use, & Irrigation Scheduling: Important Factors in Irrigation Management
Richard J. Wenstrom 133-138
An Economic Comparison of Subsurface Drip Irrigation (SDI) and Center Pivot Irrigation for Field Corn
K. C. Dhuyvetter, F. R. Lamm, & D. H. Rogers
139-147
Design and Management Considerations for Subsurface Drip Irrigation Systems
Freddie R. Lamm, D. H. Rogers, & W. E. Spurgeon
148-155
Subsurface Drip Irrigation Research for Corn Freddie R. Lamm, Harry L. Manges, Danny H. Rogers, & William E. Spurgeon
156-159
Use of Drip Irrigation on Alfalfa
Joe Henggeler 160-168
February 6 and 7, 1996 Burlington, Colorado Sprinkler Application and Effects on Corn Yield Tillage Practice
Danny H. Rogers 1-12
Converting from Furrow Irrigation to Center Pivot Irrigation—Does It Pay?
Kevin C. Dhuyvetter 13-22
Electrical Safety Requirements for Irrigation Systems
LaVerne E. Stetson 23-36
Tractor Safety—Prevention and Protection Paul D. Ayers 37-45
Nitrogen Management Under Irrigated Conditions Grant E. Cardon 46-52
Water Management C. Dean Yonts 53-55
Chemigation Benefits Through Equipment Choices
Gary Newton & Erik W. Tribelhorn 56-62
Involving Agricultural Producers in Development of Localized Best Management Practices
Lloyd R. Walker & Reagan M. Waskom 63-67
Automation and Remote Sensing—Equipment and Application Benefits
Walter C. Bausch, Gerald Buchleiter, & Neil Havermale
68-73
An Economic Comparison of Alternative Irrigation Systems on Small and Irregularly Shaped Fields
Daniel O’Brien, Danny Rogers, & Freddie Lamm
74-88
GPS (Global Positioning System) Basics and Applications
Paul Ayers 89-99
CropFLEX-A Vadose Zone Quality and Farm Sustainability Decision Support Tool for Managing Irrigation and Fertilizer
P. Lorenz Sutherland, K. R. Thompson, Israel Broner, Adam Weinrich, Jim Valliant, Mike Bartalo, & P. N. Soltanpour
100-107
Microirrigation in Gardens and Landscapes Gary A. Clark 108-113
Assessment of Crop Water Use for Dry Beans with Drip Irrigation
Mahdi Al-Kaisi 114-121
Greenhouse Irrigation and Fertilization Overview Kyle R. Mankin 122-125
February 4, 1997 Colby, Kansas Weather Modification Update
W. Bossert 1-10
Water Runoff from Sprinkler Irrigation -- A Case Study
N.L. Klocke, W.L. Kranz, C.D. Yonts, and K. Wertz
11-13
In-Canopy Sprinkler Application for Corn: What Works and What Doesn’t Work
F.R. Lamm 14-23
An Economic Analysis of Flood and Center Pivot Irrigation System Modifications
D.R. DeLano, J.R. Williams, D.M. O’Brien 24-33
Performance of In-Canopy Sprinklers
C.D. Yonts 34-44
Irrigation Efficiencies of Surface Systems
Mahbub Alam 45-48
Improvements in Irrigation Efficiency
F.R. Lamm 49-52
Chemigation
M. Anderson 53-55
Irrigation Scheduling Using Evapotranspiration (ET): Example Schedule
D.H. Rogers 56-64
Design and Management Considerations for Subsurface Drip Irrigation Systems
F.R. Lamm, D.H. Rogers, W.E. Spurgeon 65-71
KSU Research for Corn Production Using SDI F.R. Lamm; W.E. Spurgeon, D.H. Rogers, H.L. Manges
72-80
Irrigation System Economics as Affected by Field Size
D.M. O’Brien, D.H. Rogers, F.R. Lamm, G.A. Clark
81-93
February 17-18, 1998 North Platte, Nebraska Computing Field Losses for Furrow Irrigation
B. L. Benham 1-5
Design and Management Considerations for Subsurface Drip Irrigation Systems
F.R. Lamm, D.H. Rogers, and W.E. Spurgeon
6-12
KSU Research for Corn Production Using SDI
F.R. Lamm and W.E. Spurgeon 13-21
Filtration and Maintenance Considerations for SDI Systems
T.P. Trooien, M. Alam, and F.R. Lamm 22-26
Economic Comparison of SDI and Center Pivots for Various Field Sizes
D.M. O’Brien, D.H. Rogers, F.R. Lamm, and G.A. Clark
27-38
In-Canopy Sprinkler Application for Corn: What Works and What Doesn’t Work
F.R. Lamm 39-48
Determining Runoff Potential
W.L. Kranz 49-54
The Effects of Conversion on the Pumping Plant
D.H. Rogers 55-69
Economics of Conversion from Flood to Pivot
R.A. Selley 70-73
Access and Use of ET Data on the Internet
K.G. Hubbard 74-87
Irrigation Scheduling -- An On-Farm Update
R.J. Wenstrom 88-91
Validation of Cropflex -- A Crop Management Program
J. Lorenz and I. Broner 92-98
Basinwide Recovery Program for Endangered Species in the Central Platte River Basin
J.R. Cook 99-104
Potential for Variable Water and Chemical Application
H.R. Duke 105-109
Moving Precision Agriculture to a New Dimension – The ARS/CSU Precision Farming Project at Wiggins, Colorado, USDA-ARS
K.L. Fleming, D.G. Westfall, D.F. Heermann
110-114
Polyacrylamide – A Method to Control Erosion
C.D. Yonts 115-121
February 9-10, 1999 Sterling, Colorado Water Issues in the Kansas Central Plains
C. Duffy 1-8
Irrigated Precision Farming
D.F. Heermann and H.R. Duke 9-12
Describing and Modeling Saline Shallow Water Table Problems in the Lower Arkansas River Valley, Colorado
T.K. Gates, J.W. Labadie and J. Valliant 13-23
Understanding Salinity in the South Platte River Valley
M. Petersen 24-28
Water Management: A Kansas Farmer’s Viewpoint
C.A. Meyer 29-31
Managing Swine Effluent Applications Under Irrigated Conditions in Northeast Colorado
M. Al-Kaisi and R. Waskom 32-41
Irrigation Corn with High Nitrate Water
D. Watts and D. Fekersillassie, and J. Schepers
42-51
Optimum Nitrogen Fertigation for Corn Using SDI
F.R. Lamm, A.J. Schlegel, and G.A. Clark 52-61
Limited Irrigation Strategies for Dry Edible Beans and Sugarbeets
C.D. Yonts 62-71
Irrigation Scheduling Demonstration for Water Conservation in Western Kansas
M. Alam, T.P. Trooien and D.H. Rogers 72-77
Sprinkler System Conversions
W. L. Kranz 78-85
Economics of Surface and Sprinkler Irrigation System Conversion for Lower Capacity Systems
D.M. O’Brien and F.R. Lamm 86-96
Reading Pump and Engine Performance Curves
D.H. Rogers and W.M. Sothers 97-100
Evaluating Pumping Plant Efficiency – Using On-Farm Fuel Bills
D.H. Rogers and R.D. Black 101-104
February 9-10, 2000 Garden City, Kansas Observing irrigation-based change in western Kansas
D.E. Kromm 1-10
Issues regarding Kansas water resource planning
Clark Duffy 11-25
The U. S. Geological Survey’s national water-quality assessment program — High Plains regional ground water study
Kevin F. Dennehy 26-27
George Knapp’s watery vision for Kansas
James E. Sherow 28-38
Risk issues of bio-engineering
Bob Bowden 39-41
Chemophobia -- The excessive fear of small amounts of chemicals
Clifton E. Meloan 42-51
Ground water quality of the quaternary deposits, Central High Plains, Kansas, 1999
Larry M. Pope 52
Ground-water quality of the Ogallala Formation, Central High Plains, Colorado, Kansas, New Mexico, Oklahoma, and Texas, 1999
Mark F. Becker 53
Retrospective analysis of historical water- quality data for the High Plains regional aquifer, 1950-97
David W. Litke 54
Upper Arkansas River subbasin management program
E. G. Hargett 55
A summary of the intensive groundwater control area concept in Kansas
Thomas L. Huntzinger 56-58
The total maximum daily loads process in Kansas
Daniel L. Devlin 59-62
Water quality of the Arkansas River and its effect on ground water
Donald O. Whittemore 63-71
Design and management considerations for subsurface drip irrigation systems
Freddie R. Lamm, Danny H. Rogers, and William E. Spurgeon
72-80
Using livestock wastewater with SDI Todd P. Trooien, Freddie R. Lamm, Loyd R. Stone, Mahbub Alam, Danny H. Rogers, Gary A. Clark, and Alan J. Schlegel
81-87
The economics of converting from surface to sprinkler irrigation systems for lower pumping capacity wells
Daniel M. O’Brien and Freddie R. Lamm 88-98
Irrigation scheduling demonstration in western Kansas
Mahbub ul Alam, Todd Trooien, and Danny Rogers
99-103
South Central Kansas irrigation management project
Danny Rogers and Gary Clark 104-106
Performance of in-canopy sprinklers
C. Dean Yonts 107-117
Who wants to be an in-canopy irrigator?
Freddie R. Lamm 118-127
Determining runoff potential
Bill Kranz 128-134
Precision agriculture: Variable rate technology and management zones
R. Khosla 135-139
February 5-6, 2001 Kearney, Nebraska Living with Limited Water in Southwest Nebraska
Joel Schneekloth and Nancy Norton 1-10
Design And Management Considerations For Subsurface Drip Irrigation Systems
Freddie Lamm, Danny Rogers, and William Spurgeon
11-13
Subsurface Drip Irrigation For Alfalfa In Kansas Mahbub Alam, Todd Trooien, Steven Stone, and Danny Rogers
14-23
Advances In Soil Mapping For Improved Irrigation Management
Gerald Buchleiter 24-33
Spatial Distribution Of Water And Nitrogen Application Under Center Pivot Sprinklers
Stan Best Sand Harold Duke 34-44
Using Ultrasonic Flow Meters In Irrigation Applications
Brian Benham and Dean Eisenhauer 45-48
Annualized Cost of an Irrigation System
Thomas Dorn 75-81
Computing Field Losses for Furrow Irrigation
Brian Benham 82-86
Selecting Sprinkler Packages for Land Application of Livestock Wastewater
Jacob LaRue 87-96
Using Livestock Wastewater with SDI – A Status Report After Three Seasons
Freddie Lamm, Todd Trooien, Loyd Stone, Mahbub Alam, Danny Rogers, Gary Clark, and Alan Schletel
97-104
Irrigating with Swine Effluent
Bill Kranz 105-111
Field Scale Evaluations Of Center Pivot Systems
Danny Rogers, Gary Clark, and Mahbub Alam
112-124
Impact of Wide Drop Spacing in Corn Dean Yonts, Brian Benham, Bill Kranz, and Jose Payero
125-135
Polyacrylamide (PAM) Effects on Irrigation and Sediment Yield
Dean Yonts and Brian Benham 136-141
Using Surge Irrigation for Automation
Dean Yonts 142-147
Low Volume Chemical Application System
Hamid Farahani and Gerald Buchleiter 148-155
February 5-6, 2002 Lamar, Colorado Water and Nitrogen Management Using Cropflex
Israel Broner 1-7
Using Livestock Wastewater With SDI -- A Status Report After Four Seasons
Freddie Lamm, Todd Trooien, Loyd Stone, Mahbub Alam, Danny Rogers, Gary Clark, and Alan Schlegel
8-15
Irrigating With Swine Effluent
Bill Kranz and Charles Shapiro 16-22
Field Scale Monitoring and Modeling of Salinity and Waterlogging in the Lower Arkansas River Basin of Colorado
Luis Garcia and Nathan Foged 23-35
Achieving A Sustainable Irrigated Agroecosystem in the Arkansas River Basin: A Historical Perspective and Overview of Salinity, Salinity Control Principles, Practices And Strategies
P. Lorenz Sutherland 36-63
Management Strategies to Stretch Limited Water Supplies
Joel Schneekloth and Norm Klocke 64-73
Cropping Strategies With Water Resource Constraints
Danny Rogers 74-79
Irrigation System Efficiencies
Terry Howell 80-92
Design And Management Considerations for Subsurface Drip Irrigation Systems
Freddie Lamm, Danny Rogers, and William Spurgeon
93-101
Using Subsurface Drip Irrigation for Alfalfa
Mahbub Alam and Troy Dumler 102-109
Filtration and Maintenance Considerations for Subsurface Drip Irrigation (SDI) Systems
Mahbub Alam, Todd P. Trooien, Freddie Lamm, and Danny Rogers
110-121
Irrigation Capacity and Plant Population Effects on Corn Production and Using SDI
Freddie Lamm and Todd Trooien 122-130
Canal Seepage reduction Demonstration Using Polyacrylamides in the Ditch and Water: Arkansas River Valley of Colorado
Jim Valliant 131-138
Economics of Converting to Center Pivots for Southeast Colorado Irrigated Alfalfa
Daniel O’Brien 139-148
Technical Considerations of Converting from Surface Irrigation
C. Dean Yonts 149-151
Drip Irrigation Studies for Vegetable Crops in the Arkansas Valley of Colorado
Michael Bartolo, Orren, Doss, and Jessica Davis
152-156
Irrigation Energy Source Alternatives Roger Selley, Richard Clark and Norm 157-167