Central Plains Irrigation Short Course Proceedings

February 13 and 14, 1989
Colby, Kansas
Crop Water Use
Reasonable Cost Irrigation
Center Pivot Uniformity for Chemigation
Selecting Sprinkler Packages with Tillage
Practice Interaction
Changing from Continuous Flow Irrigation to
Cablegation or Surge Irrigation
Nebraska Surge Irrigation Results
Central Plains Irrigation Short Course Proceedings
Workshop C -- Irrigation System Conversions
Irrigation Pumping Plant Alternatives
Concepts of Irrigation Scheduling
Irrigation Scheduling and Water Quality Concerns
R. Wayne Shawcroft 1-6
Danny H. Rogers 7-11
Dale F. Heermann 12-26
William Kranz 27-38
Israel Israeli 39-49
C. Dean Yonts & Dean E. Eisenhauer 50-56
Harold R. Duke 57-64
Norman L. Klocke & Richard T. Clark 65-75
Danny H. Rogers 76-81
William Kranz 82-88
Limited Irrigation and Crop Rotations Gary W. Hergert, Norman L. Klocke, Paul T.
Nordquist, Gail A. Wicks, & Richard T. Clark
Crop Responses under Various Irrigation
Scheduling Criteria
Deficit Irrigation Planning
Soil-Water-Plant Relationships
Managing Deficit Water Supplies Jack T. Musick
89-96
Freddie R. Lamm 97-104
Derrel Martin 105-114
Richard D. Black & DeLynn R. Hay 115-122
123-145

February 5 and 6, 1990
Wray, Colorado
Overview of New Developments in Sprinkler
Irrigation
Workshop A -- Low Energy Precision Applications
(LEPA) for Center Pivot Machines
LEPA Irrigation Project Report
Workshop B -- Selecting Sprinkler Packages for
Specific Conditions
Workshop C -- Center Pivot Runoff
Workshop D -- Chemigation – Safety, Equipment
and Recommendations
Why Irrigation Water Management
The Impact of Irrigation and Nitrogen
Management and Vadose Zone Conditions on
Ground Water Contamination by Nitrates
Nitrogen Management for Sprinkler Irrigation
Irrigation Scheduling with Atmometers
Computerized Irrigation Scheduling and Radio
Control for Center Pivots
Irrigation Scheduling with Personal Computers
Dale F. Heermann 5-12
L. New, C. Buchleiter, W. Spurgeon, & B.
Unruh
13-18
Bill Spurgeon 19-20
William Kranz, Dale Heermann, Larry
Brisendine, & Les Jochens
21-28
Danny H. Rogers & Freddie R. Lamm 29-35
William M. Lyle, Gary Newton, R. Wayne
Shawcroft, & Stan Pilcher
N. L.. Klocke, D. G. Watts, W. L. Kranz, & K.
G. Hubbard
36-43
44-52
Darrel Watts 53-63
James S. Schepers 64-70
Israel Broner 71-80
Gerald W. Buchleiter & Kenneth Goeglein 81-84
Ronald Roeber, Norman L. Klocke, & Terry
Boekstadter
Drip Irrigation of Corn in Kansas Danny H. Rogers, Harry L. Manges, &
William E. Spurgeon
85-91
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
Fundamentals of Surge Irrigation C. Dean Yonts, Dean E. Eisenhauer, & Joel
E. Cahoon
Application of Surge Irrigation C. Dean Yonts, Dean E. Eisenhauer, & Joel
E. Cahoon
Sprinkler Irrigation Basics Dale F. Heermann
Characteristics of Sprinkler Packages Les Jochens
Irrigation with LEPA
Sprinkler Evaporation Losses and Efficiency
23-33
34-41
42-51
52-58
59-63
Gerald W. Buchleiter 64-68
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
Considerations When Converting from Flood to
Pivot Irrigation
Danny H. Rogers
Planning for Deficit Irrigation Derrel Martin, Norman Klocke, & Gary
Hergert
Stretching Limited Water Supplies G. W. Hergert, J. P. Schneekloth, & N. L.
Klocke
Irrigation Pumping Plant Alternatives Norman L. Klocke & Richard T. Clark
97-100
101-104
105-116
117-121
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
Economic Considerations in Water Management
Cutting Irrigation Fuel Costs
Tailwater Recovery System Operation and
Design
Joel Cahoon 186-189
Roger Selley & Joel Cahoon 190-194
Thomas W. Dorn 195-200
Steve Moran 201-203

February 4 and 5, 1992
Goodland, Kansas
Is One Sprinkler System Good for All?
How Much Water Do I Apply
Dale F. Heermann 1-4
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
Effect of System Capacity and Nozzle Type on
Corn Production
C. Dean Yonts, Derrel Martin, & LaVerne
Stetson
20-22
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
Economics of Irrigation Efficiency Improvements
and System Conversions
Danny H. Rogers, Kevin C. Dhuyvetter, Mark
E. Nelson, & Ron F. Meyers
49-64
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
Kansas Requirements for Irrigation Water
Conservation Plans
87-92
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
Low Pressure Spray Mode and Tillage
Management for Corn
Richard B. Ferguson 26-31
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
Corn Management System for Reducing
Goundwater Contamination
Kevin Breece 1-8
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
The Nebraska Wellhead Protection Program and
its Possible Impacts on Agriculture
Roy F. Spalding 22-28
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
Evaluating and Fine Tuning Furrow Irrigation
Systems
Kelly Wertz, Joel Cahoon, & C. Dean Yonts 48-52
Joel Cahoon & Dean Eisenhauer 53-65
Sprinkler Devices Ron Schultz 66-69
Matching Sprinkler Packages with Field
Conditions
The Effects of Conversion on the Pumping Plant
Considerations in Switching from Furrow to
Sprinkler Systems
Design and Management Considerations for
Subsurface Drip Irrigation Systems
Bill Kranz 70-79
Danny H. Rogers 80-94
Roger Selley 95-97
Freddie R. Lamm, Danny H. Rogers, &
William E. Spurgeon
Subsurface Drip Irrigation Research for Corn Freddie R. Lamm, William E. Spurgeon,
Harry L. Manges, & Danny H. Rogers
An Economic Analysis of Subsurface Drip
Irrigation for Corn
High Frequency Low Pressure In-Canopy
Sprinkler Irrigation
98-106
107-110
Mark E. Nelson & Kevin C. Dhuyvetter 111-125
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
Evapotranspiration (ET) or Crop Water Use
(NebGuide G90-992)
Gary A. Clark 1-4
Norman L. Klocke, Kenneth G. Hubbard,
William L. Kranz, & Derrell G. Watts
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)
Application of Surge Irrigation in Colorado Compiled by Israel Broner
Center Pivot Sprinkler Irrigation Requirements for
Corn in Northwest Kansas
Variable Applications of Water and Chemicals
Through Center Pivot Sprinkler Systems
5-8
Kelly Wertz, Joel Cahoon, & C. Dean Yonts 24-28
29-42
F. R. Lamm & D. H. Rogers 43-48
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
Uniformity of In-Canopy Center Pivot Sprinkler
Application in Fully Developed Corn Canopies
Sprinkler Package Option Effects on Runoff—
General Guidelines
Economics of Converting from Flood Irrigation to
Center Pivot Sprinkler Irrigation
Arland D. Schneider & Terry A. Howell 60-63
Freddie R. Lamm 64-72
W. E. Spurgeon, D. H. Rogers, & W. Sothers 73-91
K. C. Dhuyvetter 92-100
Pumping Plant Modifications Harold R. Duke 101-106
Irrigation and Crop Management for Limited
Water Supplies
Wide-Spaced Furrow or Band Irrigation as a Tool
for Deficit Irrigation
Irrigation Scheduling: Determining Crop Water
Use
Charting Soil Water—A Tool for Irrigation
Scheduling
Well Capacity, Crop Water Use, & Irrigation
Scheduling: Important Factors in Irrigation
Management
N. L. Klocke, J. P. Schneekloth, R. T. Clark,
& G. W. Hergert
107-114
John F. Stone 115-121
Michael A. Kizer 122-127
Norman L. Klocke & Joel E. Cahoon 128-132
Richard J. Wenstrom 133-138

An Economic Comparison of Subsurface Drip
Irrigation (SDI) and Center Pivot Irrigation for
Field Corn
Design and Management Considerations for
Subsurface Drip Irrigation Systems
K. C. Dhuyvetter, F. R. Lamm, & D. H.
Rogers
Freddie R. Lamm, D. H. Rogers, & W. E.
Spurgeon
Subsurface Drip Irrigation Research for Corn Freddie R. Lamm, Harry L. Manges, Danny
H. Rogers, & William E. Spurgeon
Use of Drip Irrigation on Alfalfa
139-147
148-155
156-159
Joe Henggeler 160-168

February 6 and 7, 1996
Burlington, Colorado
Sprinkler Application and Effects on Corn Yield
Tillage Practice
Converting from Furrow Irrigation to Center Pivot
Irrigation—Does It Pay?
Electrical Safety Requirements for Irrigation
Systems
Danny H. Rogers 1-12
Kevin C. Dhuyvetter 13-22
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
Involving Agricultural Producers in Development
of Localized Best Management Practices
Automation and Remote Sensing—Equipment
and Application Benefits
An Economic Comparison of Alternative Irrigation
Systems on Small and Irregularly Shaped Fields
GPS (Global Positioning System) Basics and
Applications
CropFLEX-A Vadose Zone Quality and Farm
Sustainability Decision Support Tool for
Managing Irrigation and Fertilizer
Gary Newton & Erik W. Tribelhorn 56-62
Lloyd R. Walker & Reagan M. Waskom 63-67
Walter C. Bausch, Gerald Buchleiter, & Neil
Havermale
Daniel O’Brien, Danny Rogers, & Freddie
Lamm
68-73
74-88
Paul Ayers 89-99
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
Water Runoff from Sprinkler Irrigation -- A Case
Study
In-Canopy Sprinkler Application for Corn: What
Works and What Doesn’t Work
An Economic Analysis of Flood and Center Pivot
Irrigation System Modifications
Performance of In-Canopy Sprinklers
Irrigation Efficiencies of Surface Systems
Improvements in Irrigation Efficiency
Chemigation
Irrigation Scheduling Using Evapotranspiration
(ET): Example Schedule
Design and Management Considerations for
Subsurface Drip Irrigation Systems
W. Bossert 1-10
N.L. Klocke, W.L. Kranz, C.D. Yonts, and K.
Wertz
11-13
F.R. Lamm 14-23
D.R. DeLano, J.R. Williams, D.M. O’Brien 24-33
C.D. Yonts 34-44
Mahbub Alam 45-48
F.R. Lamm 49-52
M. Anderson 53-55
D.H. Rogers 56-64
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
Irrigation System Economics as Affected by Field
Size
D.M. O’Brien, D.H. Rogers, F.R. Lamm, G.A.
Clark
72-80
81-93

February 17-18, 1998
North Platte, Nebraska
Computing Field Losses for Furrow Irrigation
Design and Management Considerations for
Subsurface Drip Irrigation Systems
KSU Research for Corn Production Using SDI
Filtration and Maintenance Considerations for
SDI Systems
Economic Comparison of SDI and Center Pivots
for Various Field Sizes
In-Canopy Sprinkler Application for Corn: What
Works and What Doesn’t Work
Determining Runoff Potential
The Effects of Conversion on the Pumping Plant
Economics of Conversion from Flood to Pivot
Access and Use of ET Data on the Internet
Irrigation Scheduling -- An On-Farm Update
Validation of Cropflex -- A Crop Management
Program
Basinwide Recovery Program for Endangered
Species in the Central Platte River Basin
Potential for Variable Water and Chemical
Application
Moving Precision Agriculture to a New
Dimension – The ARS/CSU Precision Farming
Project at Wiggins, Colorado, USDA-ARS
Polyacrylamide – A Method to Control Erosion
B. L. Benham 1-5
F.R. Lamm, D.H. Rogers, and W.E.
Spurgeon
6-12
F.R. Lamm and W.E. Spurgeon 13-21
T.P. Trooien, M. Alam, and F.R. Lamm 22-26
D.M. O’Brien, D.H. Rogers, F.R. Lamm,
and G.A. Clark
27-38
F.R. Lamm 39-48
W.L. Kranz 49-54
D.H. Rogers 55-69
R.A. Selley 70-73
K.G. Hubbard 74-87
R.J. Wenstrom 88-91
J. Lorenz and I. Broner 92-98
J.R. Cook 99-104
H.R. Duke 105-109
K.L. Fleming, D.G. Westfall, D.F.
Heermann
110-114
C.D. Yonts 115-121

February 9-10, 1999
Sterling, Colorado
Water Issues in the Kansas Central Plains
Irrigated Precision Farming
Describing and Modeling Saline Shallow Water
Table Problems in the Lower Arkansas River
Valley, Colorado
Understanding Salinity in the South Platte River
Valley
Water Management: A Kansas Farmer’s
Viewpoint
Managing Swine Effluent Applications Under
Irrigated Conditions in Northeast Colorado
Irrigation Corn with High Nitrate Water
Optimum Nitrogen Fertigation for Corn Using
SDI
Limited Irrigation Strategies for Dry Edible
Beans and Sugarbeets
Irrigation Scheduling Demonstration for Water
Conservation in Western Kansas
Sprinkler System Conversions
Economics of Surface and Sprinkler Irrigation
System Conversion for Lower Capacity
Systems
Reading Pump and Engine Performance
Curves
Evaluating Pumping Plant Efficiency – Using
On-Farm Fuel Bills
C. Duffy 1-8
D.F. Heermann and H.R. Duke 9-12
T.K. Gates, J.W. Labadie and J. Valliant 13-23
M. Petersen 24-28
C.A. Meyer 29-31
M. Al-Kaisi and R. Waskom 32-41
D. Watts and D. Fekersillassie, and J.
Schepers
42-51
F.R. Lamm, A.J. Schlegel, and G.A. Clark 52-61
C.D. Yonts 62-71
M. Alam, T.P. Trooien and D.H. Rogers 72-77
W. L. Kranz 78-85
D.M. O’Brien and F.R. Lamm 86-96
D.H. Rogers and W.M. Sothers 97-100
D.H. Rogers and R.D. Black 101-104

February 9-10, 2000
Garden City, Kansas
Observing irrigation-based change in western
Kansas
Issues regarding Kansas water resource
planning
The U. S. Geological Survey’s national waterquality
assessment program — High Plains
regional ground water study
George Knapp’s watery vision for Kansas
Risk issues of bio-engineering
Chemophobia -- The excessive fear of small
amounts of chemicals
Ground water quality of the quaternary deposits,
Central High Plains, Kansas, 1999
Ground-water quality of the Ogallala Formation,
Central High Plains, Colorado, Kansas, New
Mexico, Oklahoma, and Texas, 1999
Retrospective analysis of historical water-
quality data for the High Plains regional aquifer,
1950-97
Upper Arkansas River subbasin management
program
A summary of the intensive groundwater control
area concept in Kansas
The total maximum daily loads process in
Kansas
Water quality of the Arkansas River and its
effect on ground water
Design and management considerations for
subsurface drip irrigation systems
D.E. Kromm 1-10
Clark Duffy 11-25
Kevin F. Dennehy 26-27
James E. Sherow 28-38
Bob Bowden 39-41
Clifton E. Meloan 42-51
Larry M. Pope 52
Mark F. Becker 53
David W. Litke 54
E. G. Hargett 55
Thomas L. Huntzinger 56-58
Daniel L. Devlin 59-62
Donald O. Whittemore 63-71
Freddie R. Lamm, Danny H. Rogers, and
William E. Spurgeon
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
The economics of converting from surface to
sprinkler irrigation systems for lower pumping
capacity wells
72-80
81-87
Daniel M. O’Brien and Freddie R. Lamm 88-98

Irrigation scheduling demonstration in western
Kansas
South Central Kansas irrigation management
project
Performance of in-canopy sprinklers
Who wants to be an in-canopy irrigator?
Determining runoff potential
Precision agriculture: Variable rate technology
and management zones
Mahbub ul Alam, Todd Trooien, and
Danny Rogers
99-103
Danny Rogers and Gary Clark 104-106
C. Dean Yonts 107-117
Freddie R. Lamm 118-127
Bill Kranz 128-134
R. Khosla 135-139

February 5-6, 2001
Kearney, Nebraska
Living with Limited Water in Southwest Nebraska
Design And Management Considerations For
Subsurface Drip Irrigation Systems
Joel Schneekloth and Nancy Norton 1-10
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 Gerald Buchleiter
Management
24-33
Spatial Distribution Of Water And Nitrogen
Application Under Center Pivot Sprinklers
Using Ultrasonic Flow Meters In Irrigation
Applications
Annualized Cost of an Irrigation System
Computing Field Losses for Furrow Irrigation
Selecting Sprinkler Packages for Land
Application of Livestock Wastewater
Using Livestock Wastewater with SDI – A Status
Report After Three Seasons
Irrigating with Swine Effluent
Stan Best Sand Harold Duke 34-44
Brian Benham and Dean Eisenhauer 45-48
Thomas Dorn 75-81
Brian Benham 82-86
Jacob LaRue 87-96
Freddie Lamm, Todd Trooien, Loyd Stone,
Mahbub Alam, Danny Rogers, Gary Clark,
and Alan Schletel
97-104
Bill Kranz 105-111
Field Scale Evaluations Of Center Pivot Systems Danny Rogers, Gary Clark, and Mahbub
Alam
Impact of Wide Drop Spacing in Corn Dean Yonts, Brian Benham, Bill Kranz, and
Jose Payero
Polyacrylamide (PAM) Effects on Irrigation and
Sediment Yield
Using Surge Irrigation for Automation
Low Volume Chemical Application System
112-124
125-135
Dean Yonts and Brian Benham 136-141
Dean Yonts 142-147
Hamid Farahani and Gerald Buchleiter 148-155

February 5-6, 2002
Lamar, Colorado
Water and Nitrogen Management Using
Cropflex
Using Livestock Wastewater With SDI -- A
Status Report After Four Seasons
Irrigating With Swine Effluent
Field Scale Monitoring and Modeling of Salinity
and Waterlogging in the Lower Arkansas River
Basin of Colorado
Achieving A Sustainable Irrigated
Agroecosystem in the Arkansas River Basin: A
Historical Perspective and Overview of Salinity,
Salinity Control Principles, Practices And
Strategies
Management Strategies to Stretch Limited
Water Supplies
Cropping Strategies With Water Resource
Constraints
Irrigation System Efficiencies
Design And Management Considerations for
Subsurface Drip Irrigation Systems
Using Subsurface Drip Irrigation for Alfalfa
Filtration and Maintenance Considerations for
Subsurface Drip Irrigation (SDI) Systems
Irrigation Capacity and Plant Population Effects
on Corn Production and Using SDI
Canal Seepage reduction Demonstration Using
Polyacrylamides in the Ditch and Water:
Arkansas River Valley of Colorado
Economics of Converting to Center Pivots for
Southeast Colorado Irrigated Alfalfa
Technical Considerations of Converting from
Surface Irrigation
Drip Irrigation Studies for Vegetable Crops in
the Arkansas Valley of Colorado
Israel Broner 1-7
Freddie Lamm, Todd Trooien, Loyd Stone,
Mahbub Alam, Danny Rogers, Gary Clark,
and Alan Schlegel
8-15
Bill Kranz and Charles Shapiro 16-22
Luis Garcia and Nathan Foged 23-35
P. Lorenz Sutherland 36-63
Joel Schneekloth and Norm Klocke 64-73
Danny Rogers 74-79
Terry Howell 80-92
Freddie Lamm, Danny Rogers, and
William Spurgeon
93-101
Mahbub Alam and Troy Dumler 102-109
Mahbub Alam, Todd P. Trooien, Freddie
Lamm, and Danny Rogers
110-121
Freddie Lamm and Todd Trooien 122-130
Jim Valliant 131-138
Daniel O’Brien 139-148
C. Dean Yonts 149-151
Michael Bartolo, Orren, Doss, and Jessica
Davis
152-156
Irrigation Energy Source Alternatives Roger Selley, Richard Clark and Norm 157-167

Klocke
Comparing Irrigation Energy Costs Danny Rogers and Mahbub Alam 168-175