Back to Bio Page

A model of pecan tree growth for the management of pruning and irrigation

Agricultural system models in field research and technology transfer

Agriculture Models

Alfalfa crop coefficients developed using a weighing lysimeter in Southeast Colorado

Alfalfa ET and crop coefficients from a weighing lysimeter in the Arkansas Valley of Colorado

Alfalfa ET from a weighing lysimeter in the Arkansas Valley of Colorado

Alfalfa ET from a weighing lysimeterin the Arkansas Valley of Colorado

Alfalfa reference ET from a weighing lysimeter and estimates from the ASCE Standardized Reference ET Equation in the Arkansas Valley of Colorado

Atmometer use in evapotranspiration based irrigation scheduling

Calibration and Evaluation of CERES-Maize in Full and Limited Irrigation Scenarios for Corn in a Semiarid Environment

Comparison of Neutron Moisture Meter and Watermark Sensor Readings in a Field Experiment of Full and Limited Irrigation of Corn

Comparison of Reference Evapotranspiration from the American Society of Civil Engineers (ASCE) Standardized Penman Monteith and Kimberly-Penman Equations in Northeast Colorado

Crop coefficients of open-canopy pecan orchards

Developing and generalizing average corn crop water production functions across years and locations using a system model, Saseendran S Anapalli,Lajpat R Ahuja,Liwang Ma,Thomas J Trout,Gregory S McMaster,David C Nielsen,Allan A Andales,Ardel A Halvorson,Jose L Chavez,Jay M Ham,Quanxiao X Fang

Diagnosing saline and sodic soil problems

Direct Determination of Crop Evapotranspiration in the Arkansas Valley with a Weighing Lysimeter

Effects of Weather on Dry Bean Irrigation Requirements

Effects of Weather on Dry Bean Irrigation Requirements

Effects of Weather on Irrigation Requirements

Energy balance measurements and a simple model forestimating pecan water use efficiency

ET-basedirrigation scheduling

EvaluatingGPFARM crop growth, soil water, and soil nitrogencomponents for Colorado dryland locations

Evaluation of GPFARM for dryland croppingsystems in eastern Colorado

Evaluation of GPFARM for simulation offorage production and cow-calf weights

Evapotranspiration and Irrigation Requirements of Dry Beans

Global sensitivity and uncertainty analysis of a dynamic agroecosystem model under different irrigation treatments

GPFARM plant model parameters: Complications ofvarieties and the Genotype x Environmentinteraction in wheat

Growing Crops with Less Water: Field Studies in the South Platte

Improving evapotranspiration simulations in the CERES-Maize model under limited irrigation

Incorporating tillage effects into a soybean model

Interactive effects of elevated CO2, warming, and water additions on the timing and rate of plant development in a mixed-grass prairie ecosystem

Irrigation Scheduling: The Water Balance Approach

Mapping ET in Southeastern Colorado using asurface aerodynamic temperature model

Mobile irrigation water management system using eRAMS/CSIP

Modeling and Evaluation of Maize under Full and Limited Irrigation

Modeling of Full and Limited Irrigation of Corn in a Semiarid Environment

Modeling of full and limited irrigation scenarios for corn in a semi-arid environment

Modification of a soybean model to improve soil temperature and emergence date prediction

Multi- Crop Plant Growth Modeling for Agricultural Models and Decision Support Systems

Nitrogen and Irrigation Management

Parameterization of the GPFARM-Range modelfor simulating rangeland productivity

Parameterizing GPFARM: An Agricultural Decision Support System for Integrating Science, Economics, Resource Use, and Environmental Impacts

Performance evaluation of selected soil moisture sensors

Performance of the ASCE Standardized Reference ET Equation in the Arkansas Valley of Colorado

Performanceevaluation of TDT soil water content and Watermarksoil water potential sensors

Plot-Scale Modeling of Full and Limited Irrigation of Corn in Northern Colorado

Preliminary Performance Evaluation of the Penman-Monteith Evapotranspiration Equation in Southeastern Colorado, Abhinaya Subedi,Jose L Chavez,Allan A Andales

Producers, Decision Support Systems and GPFARM: Lessons Learned From a Decade of Development

Progress on the Lysimeter Project at Rocky Ford

Remote Sensing ET of Alfalfa using a Surface Aerodynamic Temperature Model

Scaling parameters of the Lewis-Kostiakov water infiltration equation across soil textural classes and extension to rain infiltration

Seasonal Water Needs and Opportunities for Limited Irrigation for Colorado Crops

Simulating landscape catenaeffects in no-till dryland agroecosystems using GPFARM

Simulation of Drought and Grazing Effects on Forage Growth in the Northern Mixed Grass Zone of the USA Using the GPFarm-Range Model

Simulation of Sand sage-Bluestem Forage Growth Under Varying Stocking Rates

Strategic and tactical prediction offorage production in northern mixed-grass prairie

Surface Aerodynamic Temperature Derived from Wind/Temperature Profile Measurements over Cotton and Alfalfa in a Semi-Arid Environment

Temporally stablepatterns in grain yield and soil water on adryland catena

The Colorado Agricultural Meteorological Network (CoAgMet) and Crop ET Reports

The Lysimeter Project at Rocky Ford

The lysimeter project in the Arkansas River Basin

Use of a Cropping System Model for Soil-Specific Optimization of Limited Water

Whole system integrationand modeling essential to agricultural science andtechnology for the twenty-first century

Developing a crop water production function for alfalfa under deficit irrigation: A case study in northeast Colorado, Jan Sitterson,Allan A Andales,Daniel F Mooney,Maria Cristina Capurro,Joe E Brummer

Irrigation and nitrogen management influenced potato (Solamum tuberosum L) productivity in the San Lujis Valley, Abdulssamad Barka,Samuel YC Essah,Allan A Andales,Jessica G Davis,David G Holm

Response of Colorado Potato Cultivar 'Mesa Russet' to deficit irrigation and nitrogen application rate., Abdulssamad Barka,Samuel YC Essah,Allan A Andales,Jessica G Davis,David G Holm

Improving WISE crop evapotranspiration estimates using crop coefficients derived from remote sensing algorithms, Edson Costa-Filho,Jose L Chavez,Allan A Andales,Ansley J Brown

Evaluating reflectance-based maize evapotranspiration estimation under different irrigation systems, Edson Costa-Filho,Jose L Chavez,Huihui Zhang,Allan A Andales,Ansley J Brown

Maize Evapotranspiration Estimates Using Microsatellites, Jose L Chavez,Edson Costa-Filho,Huihui Zhang,Allan A Andales,Ansley J Brown

Irrigation Water Management (Online Upskilling Badge), Allan A Andales,Deana Namuth-Covert

Research at the Subsurface Irrigation Efficiency Project, Daniel F Mooney,Jan Sitterson,Allan A Andales,Maria Cristina Capurro,Rebecca Hill

Updating Corn Crop Coefficients with Remote Sensing-based Actual Evapotranspiration Algorithms, Edson Costa Filho,Jose L Chavez,Allan A Andales,AJ Joseph Brown

Attention-Based Convolutional Capsules for Evapotranspiration Estimation at Scale, Sam Vincent Armstrong,Paahuni Khandelwal,Dhruv Padalia,Gabriel Senay,Darin K Schulte,Allan A Andales,F Jay Breidt,Shrideep Pallickara,Sangmi Lee Pallickara

An optimized surface aerodynamic temperature approach to estimate maize sensible heat flux and evapotranspiration, Edson Costa-Filho,Jose L Chavez,Huihui Zhang,Allan A Andales

Comparative Profitability of Irrigated Cropping Activities for Temporary Water Transfers Under Risk Aversion, Tim H Kelley,Daniel F Mooney,Chris G Goemans,Dale Thomas Manning,Allan A Andales

Improving the assessment of irrigated salinized fields affected by gypsum, AJ Joseph Brown,Allan A Andales,Timothy K Gates

Adapting a Cloud-Based Irrigation Scheduler for Sugar Beets in the High Plains, Allan A Andales,AC Batrlett,Troy A Bauder,Erik M Wardle

Improving irrigation management across the Ogallala aquifer, USA, Allan A Andales,Daran Rudnick,Jose L Chavez

Innovative extension methods in the US to promote irrigation water management, Daran R Rudnick,Matt Stockton,Saleh Taghvaeian,Jason Warren,Michael D Dukes,Amy E Kremen,Christopher G Henry,Jonathan Aguilar,Brenda Ortiz,Allan A Andales,others

Integrative Hydrometeorological Applications with Precipitation, Soil Moisture, and Water Vapor using Phone Apps, GIS, and Data Assimilation, Andrew S Jones,Allan A Andales,Amy Michelle Burzynski,Jose L Chavez,Olaf David,Steven James Fletcher,John M Forsythe,Michael Robert Goodliff,Peter Grazaitis,Stanley Q Kidder,others

Irrigation Scheduling for Agriculture in the United States: The Progress Made and the Path Forward, Saleh Taghvaeian,Allan A Andales,L Niel Allen,Isaya Kisekka,Susan A O’Shaughnessy,Dana O Porter,Ruixiu Sui,Suat Irmak,Allan Fulton,Jonathan Aguilar

Linking crop water productivity to soil physical, chemical and microbial properties, Di Wu,Allan A Andales,H. Yang,Q. Sun,S. Chen,X. Guo,D. Li,Taisheng Du

Variable Rate Nitrogen and Water Management for Irrigated Maize in the Western US, Subash Dahal,Evan Michael Phillippi,Louis Longchamps,R. Khosla,Allan A Andales

Response of two Colorado Russet Potato Cultivars to Reduced Irrigation Water Use, Samuel YC Essah,Allan A Andales,Troy A Bauder,David G Holm

Hourly alfalfa evapotranspiration estimation using variable bulk surface resistance, Abhinaya Subedi,Jose L Chavez,Allan A Andales

Use of Predictive Weather Uncertainties in an Irrigation Scheduling Tool - Part I: A Review of Metrics and Adjoint Methods, Andrew S Jones,Allan A Andales,Jose L Chavez,Cullen Leon McGovern,Garvey Engulu Barrington Smith,Olaf David,Steven James Fletcher

Use of Predictive Weather Uncertainties in an Irrigation Scheduling Tool Part II: An Application of Metrics and Adjoints, Andrew S Jones,Allan A Andales,Jose L Chavez,Cullen Leon McGovern,Garvey EB Smith,Olaf David,Steven James Fletcher

Evaluating RZWQM2-CERES-Maize and water production functions for predicting irrigated maize yield and biomass in eastern Colorado, Nathan Q Sima,Allan A Andales,R. Daren Harmel,Liwang Ma,Thomas J Trout

Modeling Current and Future Climate Effects on Winter Wheat Production in Colorado, USA, Maha L.M. Elsayed,Saseendran Anapalli,Lajpat R Ahuja,Liwang Ma,Thomas J Trout,Allan A Andales

Determination of consumptive water use of grass hay in the Arkansas Valley of Colorado (2018), Allan A Andales,Lane Howard Simmons,Michael E Bartolo

Predicting the impact of soil salinity on crop production: A look at traditional and new approaches, AJ Joseph Brown,Allan A Andales,Timothy K Gates

Precision nitrogen and water management for maize production in the western great plains of the US, Evan Michael Phillippi,R. Khosla,Allan A Andales,Louis Longchamps

Estimating Impacts of Salinity on Irrigated Crop Production using Electrical Conductivity Surveys and Multi-level Remote Sensing, Allan A Andales,Timothy K Gates,Jose L Chavez,AJ Joseph Brown,Brian David Craig

Development and evaluation of a phosphorus (P) module in RZWQM2 for phosphorus management in agricultural fields, Debasis Sadhukhan,Zhiming Qi,Tie-Quan Zhang,Chin S Tan,Liwang Ma,Allan A Andales

Irrigation scheduling using a water balance model and soil moisture sensors, Allan A Andales

Subsurface Wireless Networks for Soil Moisture Sensing and Irrigation Water Management, Allan A Andales,Jay M Ham

Determination of consumptive water use of grain sorghum in the Arkansas Valley of Colorado (2017 Season), Allan A Andales,Lane Howard Simmons,Michael E Bartolo

An Assessment of Quantitative Precipitation Forecast Uncertainties for Use with the WISE Irrigation Scheduling Tool, Andrew S Jones,Allan A Andales,Jose L Chavez,Cullen Leon McGovern,Garvey Engulu Barrington Smith,Olaf David,Steven James Fletcher

Response of three Colorado potato cultivars to deficit irrigation, Samuel YC Essah,Allan A Andales,Troy A Bauder,David G Holm

A Modified F-test for Evaluating Model Performance by Including both Experimental and Simulation Uncertainties, Nathan Q Sima,R. Daren Harmel,Quan Xiao Fang,Liwang Ma,Allan A Andales

Design and Construction of a Precision Weighing Lysimeter in Southeast Colorado, Allan A Andales,Dale Straw,Thomas H Marek,Lane Howard Simmons,Michael E Bartolo,Thomas W Ley

ASCE-EWRI standardized Penman-Monteith evapotranspiration (ET) equation performance in southeastern Colorado, Abhinaya Subedi,Jose L Chavez,Allan A Andales

Evaluating the impact of future climate change on irrigated maize production in Kansas, A Araya,Isaya Kisekka,Xiaomao Lin,PV Vara Prasad,PH Gowda,Charles Rice,Allan A Andales

Optimization of irrigation scheduling using ant colony algorithms and an advanced cropping system model, Nguyen,Duc Cong Hiep,Ascough,James C.,II,Holger R. Maier,Graeme C. Dandy,Allan A Andales

The Ogallala water coordinated agricultural project: Optimizing water use for agriculture and rural communities, Meagan Erin Schipanski,Allan A Andales,Jose L Chavez,Joel Schneekloth,Jonathan Aguilar,Danny Rogers,Daran Rudnick,Tim Shaver,Jason Warren,Isaya Kisekka

Weather data integration into irrigation scheduling tools, Andrew S Jones,Allan A Andales,Jose L Chavez,Cullen Leon McGovern,Garvey Engulu Barrington Smith

Evaluating Effects of Water Stress Functions and Calibration Data Sets on Model Performance by Considering both Experimental and Simulation Uncertainties, Nathan Q Sima,Daren Harmel,Liwang Ma,Allan A Andales

Determination of consumptive water use of winter wheat in the Arkansas Valley of Colorado (Year 2: 2016-2017), Allan A Andales,Lane Howard Simmons,Michael E Bartolo

Use of single line source irrigation technique for deficit irrigation studies in potatoes, Samuel YC Essah,Barka Abdulsammad,Allan A Andales,Troy A Bauder,David G Holm

Response of three Colorado potato cultivars to deficit irrigation, Samuel YC Essah,Allan A Andales,Troy A Bauder,David G Holm

Management strategies for adapting semi-arid corn production to limited irrigation conditions, Colorado State University, Allan A Andales,Jose L Chavez,Neil Hansen

Deficit irrigation in early and medium to late maturity potato cultivars, Samuel YC Essah,Allan A Andales,Troy A Bauder

Tactical irrigation management using the WISE online tool, Allan A Andales

Seasonal water needs and opportunities for limited irrigation for Colorado crops, Joel Schneekloth,Allan A Andales

Determination of consumptive water use of winter wheat in the Arkansas Valley of Colorado (2015-2016), Allan A Andales,Lane Howard Simmons,Michael E Bartolo

Water Irrigation Scheduler for Efficient Application (WISE App), Allan A Andales

ASCE-EWRI Standardized Penman-Monteith Evapotranspiration (ET) Equation Performance in Southeastern Colorado, Abhinaya Subedi,Jose L Chavez,Allan A Andales

Deficit irrigation in early and medium to late maturity potato cultivars. , Samuel YC Essah,Allan A Andales,Troy A Bauder

Optimization of irrigation schedule based on RZWQM model for spring wheat in Shiyang River Basin, Shiwei Zhou,Xiaotao Hu,Wene Wang,Allan A Andales,Yajun Zhang

SEBAL-A: A remote sensing ET algorithm that accounts for advection with limited data. Part I: Development and validation, Mcebisi Mkhwanazi,Jose L Chavez,Allan A Andales

SEBAL-A: A remote sensing ET algorithm that accounts for advection with limited data. Part II: Test for Transferability, Mcebisi Mkhwanazi,Jose L Chavez,Allan A Andales,Kendall C DeJonge

Developing and normalizing average corn crop water production functions across years and locations using a system model, S.A. Saseendran,Lajpat Ahuja,Liwang Ma,Thomas J. Trout,Gregory S. McMaster,David C. Nielsen,Jay M Ham,Allan A Andales,Ardel D. Halvorson,José L. Chávez,Quan-Xiao Fang

Water Irrigation Scheduler for Efficient Application (WISE), Allan A Andales,MAZDAK Arabi,Andrew C Bartlett,Troy A Bauder,Erik M Wardle,Kyle Andrew Traff

Developing and normalizing average corn crop water production functions across years and locations using a system model, Saseendran,Lajpat R Ahuja,Liwang Ma,Thomas J Trout,Gregory S McMaster,David C Nielsen,Jay M Ham,Allan A Andales,Ardel A Halvorson,Jose L Chavez,Quanxiao Fang

Quantifying crop water stress factors from soil water measurements in a limited irrigation experiment, Saseendran,Thomas J Trout,Lajpat R Ahuja,Liwang Ma,Gregory S McMaster,David C. Nielsen,Allan A Andales,Jose L Chavez,Jay M Ham

An iPhone App to Extend Use of a Cloud-based Irrigation Scheduling Tool, Andrew C Bartlett,Allan A Andales,Mazdak Arabi,Troy A Bauder

Irrigation Management, Allan A Andales

Modifying a Sugar Beet Crop Coefficient Curve for a Semi-Arid Climate in Northeastern Colorado , Andrew C Bartlett,Allan A Andales,Troy A Bauder,Erik M Wardle

A Mobile Irrigation Water Management System Using a Collaborative GIS and Weather Station Networks, Allan A Andales,Troy A Bauder,Mazdak Arabi

Enhancing the water stress factors for simulation of corn in RZWQM2, Saseendran,Lajpat R. Ahuja,Liwang Ma,David C. Nielsen,Thomas J. Trout,Allan A Andales,Jose L. Chavez,Jay M Ham

Water Irrigation for Efficient Scheduling (WISE) iPhone App, Andy C Bartlett,Allan A Andales,Troy A Bauder,Mazdak Arabi

Using a Model and Forecasted Weather to Predict Forage and Livestock Production for Making Stocking Decisions in the Coming Growing Season, Quan-Xiao Fang,Lajpat R. Ahuja,Allan A Andales,Justin D. Derner

Developing and normalizing average corn crop water production functions across years and locations using a system model, Saseendran,Lajpat R. Ahuja,Liwang Ma,Thomas J. Trout,Gregory S. McMaster,David C. Nielsen,Jay M Ham,Allan A Andales,Ardel D. Halvorson,Jose L. Chavez,Quan-Xiao Fang

Modeling weather and stocking rate effects on forage and steer production in northern mixed-grass prairie, Quanxiao X Fang,Allan A Andales,Justin D Derner,Lajpat R Ahuja,Liwang Ma,Patricia N.S. Bartling,Justin L Reeves,Zhiming Qi

Elevated CO2 further lengthens growing season under warming conditions, Melissa Reyes-Fox,Heidi Steltzer,Milton J Trlica,Gregory S McMaster,Allan A Andales,Daniel R LeCain,Jack Morgan

Colorado Irrigation Scheduler, Allan A Andales

Enhancing the Water Stress Factors for Simulation of Corn in RZWQM2, S.A. Saseendran,Lajpat Ahuja,Liwang Ma,D. C. Nielsen,Tom Trout,Allan A Andales,J. L. Chávez,Jay M Ham

Performance of atmometers in estimating reference evapotranspiration in a semi-arid environment, David J Gleason,Allan A Andales,Troy A Bauder,Jose L Chavez

Making Better Decisions – 2013 Colorado Dry Bean Variety Performance Trials, Jerry J Johnson,Mark A Brick,Howard F Schwartz,Mark S McMillan,Sally Marie Jones-Diamond,Michael E Bartolo,Jeffery William Davidson,James P Hain,Kierra S Jewell,Barry Barry Ogg,Allan A Andales,Kristen Otto

Enhancing the water stress factors for simulation of corn in RZWQM2, Saseendran S Anapalli,Lajpat R Ahuja,Liwang Ma,David C Nielsen,Thomas J Trout,Allan A Andales,Jose L Chavez,Jay M Ham

A Mobile Irrigation Scheduling Tool for Colorado, Allan A Andales,Mazdak Arabi,Troy A Bauder

Evaluating the performance of SEBAL ET algorithm under advective conditions, Mcebisi M Mkhwanazi,Jose L Chavez,Allan A Andales

Mobile Irrigation Water Management System on eRAMS/CSIP, Allan A Andales,Mazdak Arabi

The CSU Lysimeter Project: Measuring Crop Water Use to Comply with the Arkansas River Compact, Allan A Andales

Estimating farmers’ willingness to pay for improved irrigation: An economic study of the Bontanga irrigation scheme in northern Ghana, Mustapha Alhassan,John B Loomis,Marshall Marshall Frasier,Stephen P Davies,Allan A Andales

Global sensitivity and uncertainty analysis of a dynamic agroecosystem model under different irrigation treatments, Kendall C DeJonge,James C Ascough,Mehdi Ahmadi,Allan A Andales,MAZDAK Arabi

Making Better Decisions –2012 Colorado Dry Bean Variety Performance Trials, Jerry J Johnson,Mark A Brick,Howard F Schwartz,Mark S McMillan,Sally Marie Jones-Diamond,Michael E Bartolo,Jeffery William Davidson,James P Hain,Kierra S Jewell,Barry Barry Ogg,Allan A Andales,Kristen Otto

Making Better Decisions – 2011 Dry BeanVariety Performance Trials, Jerry J Johnson,Mark A Brick,Howard F Schwartz,Allan A Andales,Michael E Bartolo,James P Hain,Kierra S Jewell,Sally Marie Jones-Diamond,Mark S McMillan,Barry Barry Ogg,Kristen Otto

Irrigation Scheduling: The Water Balance Approach, Allan A Andales,J. L. Chavez,Troy A Bauder

The Colorado Agricultural Meteorological Network (CoAgMet) and Crop ET Reports, Allan A Andales,Troy A Bauder

Gpfarm plant model parameters: complications of varieties and the genotype.. environment interaction in wheat, Gregory S McMaster,JC Ascough,II,MJ Shaffer,LA Deer–Ascough,Patrick F Byrne,DC Nielsen,Scott D Haley,Allan A Andales,GH Dunn