Publications (Clicking on the reprint icon will take you to the publication reprint.)

An economic and stochastic efficiency comparison of tillage systems in corn and soybean under risk - (Peer Reviewed Journal)

Fathelrahman, E.M., Ascough II, J.C., Hoag, D.L., Malone, R.W., Heilman, P., Wiles, L., Kanwar, R.S. 2011. An economic and stochastic efficiency comparison of tillage systems in corn and soybean under risk. Experimental Agriculture. 47(1):111-136.

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

Ahuja, L.R., Anapalli, S.S., Ma, L., Nielsen, D.C., Trout, T.J., Andales, A.A., Hansen, N.C. 2009. Use of a Cropping System Model for Soil-Specific Optimization of Limited Water. International Conference on Precision Agriculture Abstracts & Proceedings.

Irrigation Strategies To Improve Water Use Efficiency in the Wheat-Maize Double Cropping System in China - (Peer Reviewed Journal)

Fang, Q., Ma, L., Yu, Q., Ahuja, L.R., Malone, R.W., Hoogenboom, G. 2009. Irrigation Strategies To Improve Water Use Efficiency in the Wheat-Maize Double Cropping System in China. Agricultural Water Management. 97 (8):1165-1174.

Effects of Estimating Soil Hydraulic Properties and Root Growth Factor on Soil Water Balance and Crop Production - (Peer Reviewed Journal)

Ma, L., Hoogenboom, G., Saseendran, S.A., Bartling, P.N., Ahuja, L.R., Green, T.R. 2009. Effects of Estimating Soil Hydraulic Properties and Root Growth Factor on Soil Water Balance and Crop Production. Agronomy Journal. 101(3) :572-583.

Current Water Deficit Stress Simulations in Selected Agricultural System Simulation Models - (Book / Chapter)

Anapalli, S.S., Ahuja, L.R., Ma, L., Timlin, D.J., Stockle, C.O., Boote, K.J., Hoogenboom, G. 2008. Current Water Deficit Stress Simulations in Selected Agricultural System Simulation Models. In: Ahuja, L.R., Reddy, V.R., Saseendran, S.A., Yu, Q., editors. Response of Crops to Limited Water: Understanding and Modeling Water Stress Effects on Plant Growth Processes. Madison, WI, American Society of Agronomy, Crop Science Society of America, Soil Science Society of America. p. 1-38.

Modeling Nitrogen and Water Management Effects in a Wheat-Maize Double-Cropping System     - (Peer Reviewed Journal)

Fang, Q., Ma, L., Yu, Q., Malone, R.W., Saseendran, S.A., Ahuja, L.R. 2008. Modeling Nitrogen and Water Management Effects in a Wheat-Maize Double-Cropping System. Journal of Environmental Quality. 37:2232-2242.

Simulated Corn Stover Removal Effects on Soil Organic Carbon and Nitrogen Dynamics - (Abstract Only)

Ma, L., Malone, R.W., Ahuja, L.R., Karlen, D.L., Saseendran, S.A. 2009. Simulated Corn Stover Removal Effects on Soil Organic Carbon and Nitrogen Dynamics. American Society of Agronomy Meetings, Houston, TX, October 5, 2009.

A Canonical Composition of Phytomers for Buiding Plant Canopies from the Bottom Up: Phytomer Canon in D(evelopment) - (Proceedings)

Hargreaves, J.N., Mcmaster, G.S. 2008. A canonical composition of phytomers for buiding plant canopies from the bottom up: phytomer canon in d(evelopment). Proceedings of 2008 International Symposium of Crop Modeling and Decision Support. April 19-22, 2008, Nanjing, China.

Scaling Terrain Attributes By Fractal Methods - (Abstract Only)

Erskine, R.H., Green, T.R., Niemann, J.D., Ramirez, J.A. 2008. Scaling Terrain Attributes By Fractal Methods. Annual American Geophysical Union Hydrology Days.

Use of Crop Simulation Models to Evaluate Limited Irrigation Management Options for Corn in Semi-Arid Environment     - (Peer Reviewed Journal)

Anapalli, S.S., Ahuja, L.R., Nielsen, D.C., Trout, T.J., Ma, L. 2008. Use of Crop Simulation Models to Evaluate Limited Irrigation Management Options for Corn in Semi-Arid Environment. Water Resources Research. Water Resources Research, 44,W00E02, doi10.1029/2007WR006181.

Simulating Crop Phenological Responses to Water Deficits - (Book / Chapter)

Mcmaster, G.S., White, J.W., Weiss, A., Baenziger, P.S., Wilhelm, W.W., Porter, J.W., Jamieson, P.D. 2009. Simulating Crop Phenological Responses to Water Deficits. In: Ahuja, L.R., Reddy, V.R., Anapalli, S.A., and Yu, Q., editors. Modeling the Response of Crops to Limited Water: Recent Advances in Understanding and Modeling Water Stress Effects on Plant Growth Processes. Vol 1 of series: Advances in Agricultural Systems Modeling. Trans-disciplinary Research, Synthesis, and Applications. Madison, WI, ASA-SSA-CSSA. p.277-300.

Tradeoff Analysis Between Economic Development and Climate Change Adaptation Strategies for River Nile Basin Water Resources - (Book / Chapter)

Fathelrahman, E.M., Ascough II, J.C., Green, T.R., Babiker, M.H., Strzepek, K.M. 2009. Tradeoff Analysis Between Economic Development and Climate Change Adaptation Strategies for River Nile Basin Water Resources. In: Taylor, R.,Tindimugaya, C., Owor, M., and Shamsudduha, M, editors. Groundwater and Climate in Africa (Proceedings of the Kampala Conference, June 2008). Wallingford, UK: IAHS Bood Publication 334. p. 257-269.

Global Analogues of Climate Change Effects on Agriculture and Groundwater Between Hydrologically Similar Regions of the World     - (Abstract Only)

Green, T.R., Bates, B.C., Charles, S.P., Fathelrahman, E.M. 2008. Global Analogues of Climate Change Effects on Agriculture and Groundwater Between Hydrologically Similar Regions of the World. Meeting Abstract.

Relating Crop Yield Patterns to Terrain Attributes Under Water-Limited and Waterlogged Conditions - (Abstract Only)

Erskine, R.H., Green, T.R., Starr, G.C. 2008. Relating Crop Yield Patterns to Terrain Attributes Under Water-Limited and Waterlogged Conditions. International Conference on Precision Agriculture Abstracts & Proceedings.

Using the Response Surface Method (RSM) for Economic and Environmental Tradeoffs Between Economics and Environment at the Farm Level     - (Proceedings)

Ascough Ii, J.C., Fathelrahman, E.M., Hoag, D.L. 2007. Using the Response Surface Method (RSM) for Economic and Environmental Tradeoffs Between Economics and Environment at the Farm Level. Farming Systems Design 2007 Conference, Catania, Sicily, Italy. September 10-12, 2007. Symposium Proceedings p.164-165.

Stakeholder Payoff Matrix for Disparate Tradeoffs     - (Proceedings)

Hoag, D., Ascough II, J.C., Fathelrahman, E.M., Keske, C.M. 2007. Stakeholder Payoff Matrix for Disparate Tradeoffs. Farming Systems Design 2007 Conference, Catania, Sicily, Italy, September 10-12,2007. Symposium Proceedings, Session 1.6, p150-151.

Simulated Corn Yield Responses to Limited-Water Irrigation Under Varying Soil and Climate Conditions     - (Abstract Only)

Anapalli, S.S., Ahuja, L.R., Ma, L., Nielsen, D.C., Trout, T.J., Hansen, N., Andales, A.A. 2007. Simulated Corn Yield Responses to Limited-Water Irrigation Under Varying Soil and Climate Conditions. ASA-CSSA-SSSA Annual Meeting Abstracts, New Orleans, LA. November 5,2007, 33-2.

System Modeling for Soil and Water Research and Management: Current Status and Needs for the 21st Century     - (Peer Reviewed Journal)

Ma, L., Ahuja, L.R., Malone, R.W. 2007. System Modeling for Soil and Water Research and Management: Current Status and Needs for the 21st Century. Transactions of the ASABE. 50(5):1705-1713.

Evaluating GPFARM for No-Tillage Dryland Experimental Sites in Eastern Colorado     - (Peer Reviewed Journal)

Ascough Ii, J.C., Mcmaster, G.S., Andales, A.A., Hansen, N.C., Ahuja, L.R., Sherrod, L.A. 2007. Evaluating GPFARM for No-Tillage Dryland Experimental Sites in Eastern Colorado. Transactions of the ASABE, 50(5):1565-1578.

Fine Tuning Your Lease - (Popular Publication)

Palic, D.B., Dunn, G.H., Vigil, M.F., Burgener, P.A. 2007. Fine Tuning Your Lease. No Till Farmer. Volume 36, No. 7, pp14-15, July 2007.

Using the RZWQM to Simulate the Fate of Nitrogen in Field Soil - Crop Environment in the Mediterranean Region     - (Peer Reviewed Journal)

Cameira, M.R., Fernando, R.M., Ahuja, L.R., Ma, L. 2007. Using the RZWQM to Simulate the Fate of Nitrogen in Field Soil - Crop Environment in the Mediterranean Region. Agricultural Water Management. 90:121-136. 2007.

Whole System Integration and Modeling Essential to Agricultural Science and Technology for the 21st Century     - (Peer Reviewed Journal)

Ahuja, L.R., Andales, A.A., Ma, L., Saseendran, S.A. 2007. Whole System Integration and Modeling Essential to Agricultural Science and Technology for the 21st Century. Journal of Crop Improvement. 19 (1-2).

GPFARM Evaluation Across a No-Till Dryland Agroecosystem Landscape Catena - (Abstract Only)

Ascough Ii, J.C., Andales, A.A., Mcmaster, G.S., Ahuja, L.R. 2006. Gpfarm evaluation across a no-till dryland agroecosystem landscape catena. ASA-CSSA-SSSA Annual Meeting Abstracts. Indianapolis, IN. 11/15/2006.

APPLICATIONS OF AGRICULTURAL SYSTEM MODELS IN ASSESSING AND MANAGING CONTAMINATION OF THE SOIL-WATER-ATMOSPHERE CONTINUUM IN AGRICULTURE - (Proceedings)

Ahuja, L.R., Ma, L., Saseendran, A., Malone, R.W. 2006. Applications of agricultural system models in assessing and managing contamination of the soil-water-atmosphere continuum in agriculture. International Symposium for the Agricultural Environment. International Symposium for the Agricultural Environment.

SOIL ORGANIC CARBON POOL CHANGES UNDER LONG-TERM NO-TILL AND CROPPING INTENSITY REGIMES ACROSS AN EVAPOTRANSPIRATION GRADIENT IN EASTERN COLORADO, USA - (Abstract Only)

Ma, L., Sherrod, L.A., Peterson, G., Hansen, N., Ahuja, L.R. 2006. Soil organic carbon pool changes under long-term no-till and cropping intensity regimes across an evapotranspiration gradient in Eastern Colorado, USA. International Soil Tillage Research Organization Proceedings. KIel, Germany. 8/28 - 9/3/2006. (Abstract)

Strategic and Tactical Prediction of Forage Production in Northern Mixed-Grass Prairie     - (Peer Reviewed Journal)

Andales, A.A., Derner, J.D., Ahuja, L.R., Hart, R.H. 2006. Strategic and Tactical Prediction of Forage Production in Northern Mixed-Grass Prairie. Rangeland Ecology and Management. 59 (6): 576-584. doi: 10.2111/06-001R1.1.

USING A RANGE-LIVESTOCK MODEL TO ESTIMATE MAXIMUM COW-CALF STOCKING RATES ON A MIXED-GRASS PRAIRIE     - (Proceedings)

Andales, A.A., Ahuja, L.R. 2006. Using a range-livestock model to estimate maximum cow-calf stocking rates on a mixed-grass prairie. ASABE Annual International Meeting. Portland, OR. July 9-12, 2006.

APPLICATIONS OF A FORAGE PRODUCTION MODEL IN SEMI-ARID NORTHERN MIXED-GRASS PRAIRIE - (Abstract Only)

Andales, A.A., Derner, J.D., Ahuja, L.R., Hart, R.H. 2006. Applications of a forage production model in semi-arid northern mixed-grass prairie. [Abstract]. 36th Biological Systems Simulation Group Conference, Fort Collins, CO; Apr. 11-13, 2006.

CANOPY DEVELOPMENT OF WHEAT - (Book / Chapter)

Mcmaster, G.S., Wilhelm, W.W. 2006. Canopy development of wheat. Book Chapter.

Long-Term Crop Residue Dynamics in No-Till Cropping Systems Under Semi-Arid Conditions - (Peer Reviewed Journal)

Cantero-Martinez, C., Westfall, D.G., Sherrod, L.A., Peterson, G.A. 2006. Long-Term Crop Residue Dynamics in No-Till Cropping Systems Under Semi-Arid Conditions. Journal of Soil and Water Conservation. Vol 61:2 (84-95).

PRODUCERS, DECISION SUPPORT SYSTEMS, AND GPFARM: LESSONS LEARNED FROM A DECADE OF DEVELOPMENT     - (Proceedings)

Ascough Ii, J.C., Dunn, G.H., Mcmaster, G.S., Ahuja, L.R., Andales, A.A. 2005. Producers, decision support systems, and gpfarm: lessons learned from a decade of development. International Congress on Modeling and Simulation Proceedings.

Modelling Crop Canopy and Residue Rainfall Interception Effects on Soil Hydrological Components for Semi-Arid Agriculture - (Peer Reviewed Journal)

Kozak, J.A., Ahuja, L.R., Green, T.R., Ma, L. 2007. Modelling Crop Canopy and Residue Rainfall Interception Effects on Soil Hydrological Components for Semi-Arid Agriculture. Hydrological Processes. 21:229-241. Can be accessed at doi: 10.1002/hyp.6235.

Crop Canopy and Residue Rainfall Interception Effects on Water and Crop Growth - (Peer Reviewed Journal)

(01-Nov-05)

MULTI-CROP PLANT GROWTH MODELING FOR AGRICULTURAL MODELS AND DECISION SUPPORT SYSTEMS - (Proceedings)

Mcmaster, G.S., Ascough Ii, J.C., Edmunds, D.A., Andales, A.A., Wagner, L.E., Fox, F.A. 2005. Multi-crop plant growth modeling for agricultural models and decision support systems. International Congress on Modeling and Simulation Proceedings.

DEVELOPMENTAL SEQUENCES FOR SIMULATING CROP PHENOLOGY FOR WATER-LIMITING CONDITIONS - (Peer Reviewed Journal)

Mcmaster, G.S., Wilhelm, W.W., Frank, A.B. 2005. Developmental sequences for simulating crop phenology for water-limiting conditions. Australian Journal of Agricultural Research, Special Issue. Vol. 56, Issue 11.

MODELING THE EFFECT OF RUSSIAN WHEAT APHID, DIURAPHIS NOXIA (MORDVILKO) AND WEEDS IN WINTER WHEAT AS GUIDE TO MANAGEMENT - (Peer Reviewed Journal)

Chander, S., Ahuja, L.R., Peairs, F.B., Aggarwal, P.K., Kalra, N. 2006. Modeling the effect of russian wheat aphid, diuraphis noxia (mordvilko) and weeds in winter wheat as guide to management. Agricultural Systems. Agricultural Systems (Journal) June 2006. 88(2-3):494-513. 2006.

ENERGY BALANCE AND WATER AND HEAT TRANSFER SIMULATED BY SHAW AND RZ-SHAW - (Abstract Only)

Yu, Q., Kozak, J.A., Xu, S., Flerchinger, G.N., Ma, L., Ahuja, L.R. 2005. Energy balance and water and heat transfer simulated by shaw and rz-shaw. ASA-CSSA-SSSA Annual 2005 Meeting Abstracts. Salt Lake City, UT. Nov. 6-10, 2005.

ASSESSING THE POTENTIAL OF THE OBJECT MODELING SYSTEM (OMS) FOR EROSION PREDICTION MODELING - (Proceedings)

Ascough II, J.C., Flanagan, D.C., David, O. 2005. Assessing the potential of the object modeling system (oms) for erosion prediction modeling. Proceedings 05-211. 2005 ASAE Annual International Meeting, Tampa, FL. July 17-20. http://asae/frymulti.com/techpapers.asp?confid=tfl2005.

DEVELOPMENT OF A FORAGE GROWTH COMPONENT IN THE OBJECT MODELING SYSTEM - (Abstract Only)

Andales, A.A., David, O., Ahuja, L.R. 2005. Development of a forage growth component in the object modeling system. American Society of Agricultural Engineers Meetings Papers. 2005 ASAE Annual International Meeting, Tampa, FL, July 17-20, 2005. Paper #053011.2005. Extended Abstract.

DECISION MAKING WITH ENVIRONMENTAL INDICES - (Book / Chapter)

Hoag, D.L., Ascough Ii, J.C., Keske-Handley, C.G., Koontz, L.R. 2005. Decision making with environmental indices. Book Chapter. In: Burk, A.R. (Ed), New Trends in Ecology Research. Nova Science Publishers, Hauppauge, NY. Chapter 7, pg. 159-182. 2005.

CARBON STORAGE IN SOILS OF THE NORTH AMERICAN GREAT PLAINS: EFFECT OF CROPPING FREQUENCY - (Peer Reviewed Journal)

Campbell, C.A., Janzen, H.H., Paustian, K., Gregorich, E.G., Sherrod, L.A., Liang, B.C., Zentner, R.P. 2005. Carbon storage in soils of the north american great plains: effect of cropping frequency. Agronomy Journal 97:349-363. Mar/April 2005.

SUSTAINABLE DRYLAND AGROECOSYSTEM MANAGEMENT - (Experiment Station)

Westfall, D.G., Peterson, G.A., Peairs, F.B., Sherrod, L.A., Poss, D.J., Shaver, T., Larson, K., Thompson, D.L., Ahuja, L.R., Koch, M.D., Walker, C.B. 2004. Sustainable dryland agroecosystem management. Experiment Station Technical Bulletin TB04-05 Nov. 2004.

EFFECTS OF RAINFALL INTERCEPTION BY CROP CANOPY AND RESIDUE AND DEPRESSION STORAGE ON SOIL WATER - (Abstract Only)

Kozak, J.A. 2005. Effects of rainfall interception by crop canopy and residue and depression storage on soil water. ASA-CSSA-SSSA Annual Meeting Abstracts. Seattle, Washington. 10/31-11/4/2005.

SIMULATING MULT-CROP PHENOLOGY IN RESPONSE TO ABIOTIC STRESSES - (Abstract Only)

Mcmaster, G.S. 2004. Simulating mult-crop phenology in response to abiotic stresses. Meeting Abstract. ASA-CSSA-SSSA 2004 ANNUAL MEETING, SEATTLE, WASHINGTON, OCT. 31-NOV. 4, 2004.

SIMULATING WATER STREE RESPONSES IN CROP PHENOLOGY MODELS - (Abstract Only)

Mcmaster, G.S. 2004. Simulating water stree responses in crop phenology models. Symposium Proceedings. International Symposium. Perth, Australia. September 2004.

MODELING THE FATE OF ACETOCHLOR AND TERBUTHYLAZINE IN THE FIELD USING THE ROOT ZONE WATER QUALITY MODEL - (Peer Reviewed Journal)

Ma, Q.L., Rahman, A., James, T.K., Holland, P.T., McNaughton, D.E., Rojas, K.W., Ahuja, L.R. 2004. Modeling the fate of acetochlor and terbuthylazine in the field using the Root Zone Water Quality Model. Soil Science Society of America Journal.68:1491-1500.

CROP GROWTH MODELING AND DECISION SUPPORT SYSTEMS: SELECTED PERSPECTIVES FROM GPFARM - (Abstract Only)

Mcmaster, G.S. 2004. Crop growth modeling and decision support systems: selected perspectives from gpfarm. Workshop Proceedings. Intl. Workshop on Applications, Enhancements, and Collaboration of ARS RZWQM and GPFARM Models, April 20-22, 2004. Fort Collins, CO.

DEVELOPING NATURAL RESOURCE MODELS USING THE OBJECT MODELING SYSTEM: FEASIBILITY AND CHALLENGES - (Proceedings)

Ahuja, L.R., David, O., Ascough Ii, J.C. 2004. Developing natural resource models using the object modeling system: feasibility and challenges. Meeting Proceedings. International Environmental Modelling and Software Society (IEMSS) 2004 Conference - Complexity and Integrated Resources Management, Osnabruck, Germany. June 14-17, 2004.

BOOK REVIEW: MATHEMATICAL MODELING FOR SYSTEM ANALYSIS IN AGRICULTURAL RESEARCH BY KAREL D. VOHNOUT - (Literature Review)

Ma, L., Ahuja, L.R. 2004. Book review: mathematical modeling for system analysis in agricultural research by karel d. vohnout. Agricultural Systems. Vol 81, pp. 273-274.

SPATIAL AND TEMPORAL CORRELATIONS AMONG DRYLAND GRAIN YEILD AND SOIL-WATER CONTENT IN A SLOPING FIELD - (Abstract Only)

Andales, A.A., Ahuja, L.R., Green, T.R., Erskine, R.H., Peterson, G. 2003. Spatial and temporal correlations among dryland grain yeild and soil-water content in a sloping field. Agronomy Abstracts. Amer. Soc. of Agronomy, Denver, CO. Nov. 2-6, 2003.

SOIL ORGANIC CARBON POOLS AFTER 12 YEARS IN NO-TILL DRYLAND AGROECOSYSTEMS - (Peer Reviewed Journal)

Sherrod, L.A., Peterson, G.A., Westfall, D.G., Ahuja, L.R. 2005. Soil organic carbon pools after 12 years in no-till dryland agroecosystems. Soil Science Society of America Journal. Vol. 69:1600-1608. 2005.

SOIL ORGANIC CARBON POOLS AFTER 12 YEARS IN NO-TILL AGROECOSYSTEM AS IMPACTED BY CROPPING INTENSITY - (Abstract Only)

Sherrod, L.A., Peterson, G.A., Westfall, D.G., Ahuja, L.R. 2003. Soil organic carbon pools after 12 years in no-till agroecosystem as impacted by cropping intensity. Meeting Abstract. Amer. Soc. of Agronomy. Nov. 2-6, 2003. Denver, CO.

SIMULATING CROP PHENOLOGY - (Proceedings)

MCMASTER, G.S. SIMULATING CROP PHENOLOGY. INTERNATIONAL CROP SCIENCE CONGRESS. Brisbane, Australia. September 26-October 1, 2004. Published on CDROM.

EVALUATION OF GPFARM FOR DRYLAND CROPPING SYSTEMS IN EASTERN COLORADO - (Peer Reviewed Journal)

Andales, A.A., Ahuja, L.R., Peterson, G.A. 2003. Evaluation of gpfarm for dryland cropping systems in eastern colorado. Agronomy Journal. Vol. 95, pp. 1510-1524.

SPECIAL ISSUE: QUANTIFYING AGRICULTURAL MANAGEMENT EFFECTS ON SOIL PROPERTIES AND PROCESSES - (Book / Chapter)

Ahuja, L.R. 2003. Special issue: quantifying agricultural management effects on soil properties and processes. Geoderma, Special Issue. Vol. 116, No. 1-2, pp. 1-248.

BOOK REVIEW: CROP-SOIL SIMULATION MODELS: APPLICATIONS IN DEVELOPING COUNTRIES - (Literature Review)

Saseendran, S.A., Ahuja, L.R., Ma, L. 2003. Book review: crop-soil simulation models: applications in developing countries. Journal of Environmental Quality. Vol 32, pp. 2445-2446.

QUANTIFYING AGRICULTURAL MANAGEMENT EFFECTS ON SOIL PROPERTIES AND PROCESSES - (Peer Reviewed Journal)

Ahuja, L.R. 2003. Quantifying agricultural management effects on soil properties and processes. Geoderma Special Issue. Vol. 116, pp. 1-2. 2003.

RE-EXAMINING CURRENT QUESTIONS OF WHEAT LEAF APPEARNACE AND TEMPERATURE - (Proceedings)

MCMASTER, G.S., HUNT, L.A. RE-EXAMINING CURRENT QUESTIONS OF WHEAT LEAF APPEARNACE AND TEMPERATURE. MEETING ABSTRACT. 2001. GIS, Series 03-01.pages 18-22.