Projects

MECHANISTIC PROCESS-LEVEL CROP SIMULATION MODELS FOR RESEARCH AND ON-FARM DECISION SUPPORT Appropriated (D)   Accession Number: 407227

CONSERVATION EFFECTS ASSESSMENT PROJECT Reimbursable (R)   Accession Number: 412000

CONSERVATION EFFECTS ASSESSMENT PROJECT - BELTSVILLE (FY2006) Reimbursable (R)   Accession Number: 410815

DEVELOPMENT OF DATABASES FOR MODELING CORN AND POTATO Specific Cooperative Agreement (S)   Accession Number: 407776

MECHANISTIC PROCESS-LEVEL CROP SIMULATION MODELS FOR RESEARCH AND ON-FARM DECISION SUPPORT Specific Cooperative Agreement (S)   Accession Number: 407456

DEVELOPMENT OF DATABASE FOR CROP MODELING AND CLIMATE CHANGE RESEARCH Specific Cooperative Agreement (S)   Accession Number: 412353

EVALUATION OF FIELD-LEVEL MODELING AND DATA USE FOR THE CROPLAND COMPONENT OF THE CEAP NATIONAL ASSESSMENT Specific Cooperative Agreement (S)   Accession Number: 411191

Publications

Current Water Deficit Stress Simulations in Selected Agricultural System Simulation Models - (Book/Chapter) - (08-Aug-08)

Non-contacting techniques for plant drought stress detection - (Peer Reviewed Journal) - (18-Jul-08)

Simulation of nitrogen demand and uptake in potato using a carbon-assimilation approach - (Book/Chapter)

Timlin, D.J., Kouznetsov, M., Fleisher, D.H., Kim, S., Reddy, V. 2008. Simulation of nitrogen demand and uptake in potato using a carbon-assimilation approach. Quantifying Understanding Plant Nitrogen Uptake for Systems Modeling. In: L. Ma, L. R. Ahuja, and T. Bruulsema Editors. FL:CRC Press. p. 219-243.

Elevated carbon dioxide and water stress effects on potato canopy gas exchange, water use, and productivity - (Peer Reviewed Journal)

Fleisher, D.H., Timlin, D.J., Reddy, V. 2008. Elevated carbon dioxide and water stress effects on potato canopy gas exchange, water use, and productivity. Agricultural and Forest Meteorology. 148:1109-1122.

A Crop Simulation Model for Prediction of Yield and Fate of Nitrogen in Irrigated Potato Rotation Cropping System - (Peer Reviewed Journal) - (19-Feb-08)

Simulation of the effects of limited water on photosynthesis and transpiration in field crops: Can we advance our modeling approaches? - (Book/Chapter) - (15-Nov-07)

EXPLOITATION OF SPATIAL INFORMATION IN HIGH RESOLUTION DIGITAL IMAGERY FOR LEAF AREA INDEX MAPPING - (Peer Reviewed Journal)

Walthall, C.L., Pachepsky, Y., Dulaney, W.P., Timlin, D.J., Daughtry, C.S.T. 2007. Exploitation of spatial information in high resolution digital imagery to map leaf area index. Precision Agriculture. 8(6):311-326.

Cotton Modeling for Climate Change, On-farm Decision Support, and Policy Decisions - (Peer Reviewed Journal)

Reddy, V., Yang, Y., Reddy, K., Timlin, D.J., Fleisher, D.H. 2007. Cotton Modeling for Climate Change, On-farm Decision Support, and Policy Decisions. International Congress on Modeling and Simulation Proceedings. 1:67-72.

Interactive effects of CO2 and water stress on potato canopy growth and development - (Peer Reviewed Journal)

Fleisher, D.H., Timlin, D.J., Reddy, V. 2008. Interactive effects of CO2 and water stress on potato canopy growth and development. Agronomy Journal. 100(3):711-719.

Using available soil data to populate models to address public concerns - (Abstract)

Nemes, A., Timlin, D.J., Pachepsky, Y.A., Rawls, W.J. 2007. Using available soil data to populate models to address public concerns [abstract]. ASA-CSSA-SSSA International Annual Meeting, November 4-8, 2007, New Orleans, LA. Abstract 37-7. 2007 CDROM.

Uncertainty in Climatology-Based Estimates of Soil Water Infiltration Losses - (Abstract)

Guber, A.K., Gish, T.J., Pachepsky, Y.A., Chinkuyu, A., Schwartzman, A., Daughtry, C.S., Mckee, L.G., Timlin, D.J., Nicholson, T.J., Cady, R.E. 2007. Uncertainty in Climatology-Based Estimates of Soil Water Infiltration Losses [abstract]. ASA-CSSA-SSSA International Annual Meeting, November 4-8, 2007, New Orleans, LA. Abstract 184-10. 2007 CDROM.

Temperature dependence of growth, development, and photosynthesis in maize under elevated CO2 - (Peer Reviewed Journal)

Kim, S., Gitz, D.C., Sicher Jr, R.C., Baker, J.T., Timlin, D.J., Reddy, V. 2007. Temperature dependence of growth, development, and photosynthesis in maize under elevated CO2. Environmental and Experimental Botany. 61:224-236.

Field Studies to Confirm Uncertainty Estimates of Ground Water Discharge - (Government Publication)

Chinkuyu, A., Guber, A., Gish, T.J., Timlin, D.J., Starr, J.L., Nicholson, T., Cady, R., Schwartzman, A., McCarty, G.W. 2007. Field studies to confirm uncertainty estimates of Ground Water Discharge. Office of Nuclear Regulatory Commission. NUREG.CR-6946. p. 46.

Canopy Level Carbon Assimilation in Potato (Solanum Tuberosum, L) Under Varying Carbon Dioxide and Nitrogen - (Peer Reviewed Journal) - (20-Dec-06)

Nitrogen Application Rate and Carbon Asssimilation in Potato: What can this tell us about nitrogen demand and uptake? - (Abstract) - (12-Nov-06)

A Coupled Model in Studying the Paradigms for Stomatal Behavior of Corn - (Abstract) - (12-Nov-06)

Simulation of Nitrogen Uptake in 2DSOIL as Passive and Active Processes - (Abstract) - (12-Nov-06)

Potato Gas Exchange and Canopy Development Responses to Drought and Atmospheric Carbon Dioxide - (Abstract)

Fleisher, D.H., Timlin, D.J., Reddy, V. 2006. Potato Gas Exchange and Canopy Development Responses to Drought and Atmospheric Carbon Dioxide. 2006 ASA-CSSA-SSSA Annual Meeting. P. 47.

COMPARISON AND EVALUATION OF FIELD METHODS (DIRECT AND INDIRECT) TO ESTIMATE SOIL WATER FLUXES. - (Abstract)

Timlin, D.J., Pachepsky, Y.A., Starr, J.L. 2006. Comparison and evaluation of field methods (direct and indirect) to estimate soil water fluxes [abstract]. International Congress of Soil Science. CD-ROM.

TWO-DIMENSIONAL SOIL WATER AND TEMPERATURE DYNAMICS UNDER ROW CROPS: MODELING APPROACHES. - (Abstract)

Timlin, D.J., Shillito, R.M., Pachepsky, Y.A., Kim, S., Fleisher, D.H., Quebedeaux, B. 2006. Two-dimensional soil water and temperature dynamics under row crops: modeling approaches [abstract]. International Congress of Soil Science. CD-ROM.

MODELING EXPANSION OF INDIVIDUAL LEAVES IN THE POTATO CANOPY - (Peer Reviewed Journal)

Fleisher, D.H., Timlin, D.J. 2006. Modeling expansion of individual leaves in the potato canopy. Agricultural and Forest Meteorology. 139:84-93.

TEMPERATURE INFLUENCE ON POTATO LEAF AND BRANCH DISTRIBUTION AND CANOPY PHOTOSYNTHETIC RATE - (Peer Reviewed Journal)

Fleisher, D.H., Timlin, D.J., Reddy, V. 2006. Temperature influence on potato leaf and branch distribution and canopy photosynthetic rate. Agronomy Journal. 98:1442-1452.

WHOLE PLANT PHOTOSYNTHESIS, DEVELOPMENT AND CARBON PARTIONING IN POTATO (SOLANUM TUBEROSUM L.) AS A FUNCTION OF TEMPERATURE - (Peer Reviewed Journal)

Timlin, D.J., Rahman, L., Baker, J.T., Reddy, V., Fleisher, D.H., Quebedeaux, B. 2006. Whole Plant Photosynthesis, Development and Carbon Partioning in Potato (Solanum tuberosum L.) as a Function of Temperature. Agronomy Journal. 98:1195-1203.

Regulation of active and passive nitrogen uptake in response to C02 and nitrogen application rate. - (Abstract)

Timlin, D.J., Fleisher, D.H., Yang, Y., Kouznetsov, M., Reddy, V., Pachepsky, Y.A. 2006. Regulation of active and passive nitrogen uptake in response to C02 and nitrogen application rate. 37th Annual Biological Systems Simulation Conference. p. 35.

APPLICATION OF GOSSYM FOR WATER MANAGEMENT IN COTTON PRODUCTION SYSTEMS - (Abstract)

Kim, S., Yang, Y., Timlin, D.J., Reddy, K.R., Fleisher, D.H., Reddy, V. 2006. Application of GOSSYM for water management in cotton production systems [abstract]. Biological Systems Simulation Conference. p.39.

MODELING THE EFFECTS ON LIMITED WATER ON GROWTH, DEVELOPMENT AND YIELD OF FIELD CROPS: CAN WE ADVANCE OUR MODELING APPROACHES? - (Abstract)

Timlin, D.J., Fleisher, D.H., Bunce, J.A., Kim, S., Anapalli, S., Quebedeaux, B., Reddy, V. 2006. Modeling the effects on limited water on growth, development and yield of field crops: Can we advance our modeling approaches? [abstract]. ASA-CSSA-SSSA Annual Meeting. CD-ROM.

SIMULATION OF POTATO CANOPY GROWTH AND GAS EXCHANGE - (Abstract)

Fleisher, D.H., Kim, S., Timlin, D.J., Yang, Y., Reddy, V. 2006. Simulation of potato canopy growth and gas exchange [abstract]. Biological Systems Simulation Conference. p.42.

APPROACHES TO MODELING POTATO LEAF APPEARANCE RATE - (Peer Reviewed Journal)

Fleisher, D.H., Shillito, R.M., Timlin, D.J., Kim, S., Reddy, V. 2006. Approaches to modeling potato leaf appearance rate. Agronomy Journal. 98:522-528.

EVAPOTRANSPIRATION MEASUREMENT IN CONTROLLED ENVIRONMENT CHAMBERS: A COMPARISON BETWEEN TIME DOMAIN REFLECTOMETRY AND ACCUMULATION OF CONDENSATE FROM COOLING COILS - (Abstract)

Timlin, D.J., Kim, S., Fleisher, D.H., Reddy, V. 2005. Evapotranspiration measurement in controlled environment chambers: a comparison between time domain reflectometry and accumulation of condensate from cooling coils [abstract]. ASA-CSSA-SSSA. CD-ROM.

MODELING GAS EXCHANGE PROCESSES OF C4 LEAVES UNDER ELEVATED C02. - (Abstract)

Kim, S., Timlin, D.J., Reddy, V. 2005. Modeling gas exchange processes of C4 leaves under elevated C02 [abstract]. ASA-CSSA-SSSA. CD-ROM.

MODELING LEAF GROWTH AND DEVELOPMENT IN POTATO - (Abstract)

Fleisher, D.H., Timlin, D.J., Kim, S., Reddy, V. 2005. Modeling leaf growth and development in potato [abstract]. ASA-CSSA-SSSA. CD-ROM.

SIMULATING SOIL-WATER DYNAMICS IN A FIELD SOIL WITH 2D-SOIL - (Abstract)

Shillito, R.M., Timlin, D.J., Kim, S., Fleisher, D.H., Reddy, V., Quebedeaux, B. 2005. Simulating soil-water dynamics in a field soil with 2d-soil [abstract]. ASA-CSSA-SSSA Meeting. CD-ROM.

CANOPY PHOTOSYNTHESIS, EVAPOTRANSPIRATION, LEAF NITROGEN, AND TRANSRIPTION PROFILES OF MAIZE IN RESPONSE TO CO2 ENRICHMENT - (Peer Reviewed Journal)

Kim, S., Sicher Jr, R.C., Bae, H., Gitz, D.C., Baker, J.T., Timlin, D.J., Reddy, V. 2006. Canopy photosynthesis, evapotranspiration, leaf nitrogen, and transription profiles of maize in response to co2 enrichment. Global Change Biology. 12:588-600.

CALIBRATION OF A POTATO GROWTH MODEL FOR PREDICTION OF NITROGEN DYNAMICS IN POTATO SYSTEMS IN THE PACIFIC NORTHWEST - (Abstract)

Marcos, J., Stockle, C., Alva, A.K., Timlin, D.J., Reddy, V. 2005. Calibration of a potato growth model for prediction of nitrogen dynamics in potato systems in the pacific northwest. American Society of Agronomy Meetings. (On CD)

ADAPTATION OF THE BIOLOGICAL SIMULATION MODEL MAESTRA FOR USE IN A GENERIC USER INTERFACE - (Peer Reviewed Journal)

Bauerle, W., Timlin, D.J., Pachepsky, Y.A., Anantharamu, S. 2006. Adaptation of the biological simulation model MAESTRA for use in a generic user interface. Agronomy Journal. 98:220-228.

TRANS-DISCIPLIANRY SOIL PHYSICS RESEARCH CRITICAL TO SYNTHESIS AND MODELING OF AGRICULTURAL SYSTEMS - (Peer Reviewed Journal)

Ahuja, L.R., Ma, L., Timlin, D.J. 2006. Trans-disciplianry soil physics research critical to synthesis and modeling of agricultural systems. Soil Science Society of America Journal.70:311-326.2006.

MAIZESIM: A SIMULATION MODEL FOR GROWTH AND DEVELOPMENT OF CORN - (Abstract)

Kim, S., Timlin, D.J., Fleisher, D.H., Reddy, V. 2005. Maizesim: a simulation model for growth and development of corn [abstract]. BARC Poster Day. p.16.

ECONOMIC IMPLICATIONS OF SPATIAL VARIABILITY IN CROP YIELD PREDICTIONS - (Abstract)

Shillito, R., Hima, B.L., Timlin, D.J., Reddy, V. 2005. Economic implications of spatial variability in crop yield predictions [abstract]. BARC Poster Day. p. 20.

CALIBRATION OF A POTATO GROWTH MODEL FOR PREDICTION OF NITROGEN DYNAMICS IN POTATO SYSTEMS IN THE PACIFIC NORTHWEST - (Abstract)

Marcos, J., Stockle, C., Alva, A.K., Timlin, D.J., Reddy, V. 2005. Calibration of a potato growth model for prediction of nitrogen dynamics in potato systems in the pacific northwest. ASA-CSSA-SSSA Annual Meeting Abstracts. On CD.

A SIMULATION MODEL FOR POTENTIAL GROWTH AND DEVELOPMENT IN CORN - (Abstract)

Kim, S., Timlin, D.J., Fleisher, D.H., Reddy, V. 2005. A simulation model for potential growth and development in corn [abstract]. Biological Systems Simulation Conference. p.1.

PHOTOSYTHESIS AND YIELD OF A US RICE CULTIVAR IN RESPONSE TO CO2 AND TEMPERATURE - (Peer Reviewed Journal)

Baker, J.T., Kim, S., Gitz, D.C., Timlin, D.J., Reddy, V. 2005. Photosythesis and yield of a us rice cultivar in response to co2 and temperature. Journal of Agricultural Meteorology. 60: 457-462.

AN EVALUATION OF GLYCIM AFTER NINE YEARS OF ON-FARM TRIALS: WHY DOES GLYCIM OFTEN PREDICT HIGHER THAN MEASURED YIELDS? - (Abstract)

Timlin, D.J., Pachepsky, L., Pachepsky, Y.A., Whisler, F., Reddy, V., Fleisher, D.H. 2004. An evaluation of glycim after nine years of on-farm trials: why does glycim often predict higher than measured yields? [abstract]. Meeting Abstract.

PHOTOSYNTHESIS AND YIELD OF SOUTHERN US RICE CULTIVARS IN RESPONSE TO CO2 AND TEMPERATURE - (Peer Reviewed Journal)

Baker, J.T., Kim, S., Gitz, D.C., Timlin, D.J., Reddy, V. 2004. Photosynthesis and yield of southern us rice cultivars in response to co2 and temperature. Journal of Agricultural Meteorology of Japan. 60(5):457-462.

A TOOL FOR MODELING LEAF GAS EXCHANGE OF C3 AND C4 SPECIES - (Abstract)

Kim, S., Timlin, D.J., Lieth, J.H., Baker, J.T., Reddy, V. 2004. A tool for modeling leaf gas exchange of c3 and c4 species [absract]. Models for Plant Growth and Control of Product Quality in Hoticultural Production. Poster No. 51.

ALTERNATIVE APPROACHES FOR ESTIMATING LEAF AREA INDEX (LAI) FROM REMOTELY SENSED SATELLITE AND AIRCRAFT IMAGERY - (Proceedings/Symposium)

Walthall, C.L., Dulaney, W.P., Anderson, M., Norman, J., Fang, H., Liang, S., Timlin, D., Pachepsky, L. 2004. Alternative approaches for estimating leaf area index (LAI) from remotely sensed satellite and aircraft imagery. In: Proceedings of the SPIE International Symposium on Optical Science and Technology, August 2-6, 2004, Denver, Colorado. 5544: p. 241-255.

ESTIMATING GROUND-WATER RECHARGE AND UNCERTAINTIES USING 10-MINUTE SOIL WATER CONTENT AND PIEZOMETRIC HEAD MEASUREMENTS - (Abstract)

Timlin, D.J., Starr, J.L., Cady, R., Nicholson, T. 2004. Estimating ground-water recharge and uncertainties using 10-minute soil water content and piezometric head measurements [abstract]. ASA-CSSA-SSSA-CSSS Annual Meeting. CD-ROM.

SIMULATION OF NITROGEN DYNAMICS IN POTATO SYSTEMS IN THE PACIFIC NORTHWEST - (Abstract)

Marcos, J., Stockle, C., Alva, A.K., Timlin, D.J., Reddy, V. 2004. Simulation of nitrogen dynamics in potato systems in the pacific northwest. ASA-CSSA-SSSA Annual Meeting Abstracts, Seattle, WA, Oct 31-Nov 4, 2004. (On CD).

EVALUATION OF MODEL SIMULATION OF NITROGEN MINERALIZATION IN A POTATO ROTATION SYSTEM - (Abstract)

Alva, A.K., Marcos, J., Stockle, C., Reddy, V., Timlin, D.J. 2004. Evaluation of model simulation of nitrogen mineralization in a potato rotation system. ASA-CSSA-SSSA Annual Meeting Abstracts, Seattle, WA, Oct 31-Nov 4, 2004. (On CD).

LANDSCAPE-SCALE AGRICULTURAL EXPERIMENTATION: SPATIAL AUTOCORRELATION AND POTATO YIELD - (Proceedings/Symposium)

Shillito, R.M., Timlin, D.J., Fleisher, D.H., Reddy, V.R., Quebedeaux, B. 2005. Landscape-Scale Agricultural Experimentation: Spatial Autocorrelation and Potato Yield. In: Proceedings of the 7th International Conference on Precision Agriculture and Other Precision Resources Management, July 25-28, 2004, Minneapolis, Minnesota. 2005 CDROM.

QUANTIFICATION OF PHOTOSYNTHETICALLY ACTIVE RADIATION INSIDE SUNLIT GROWTH CHAMBERS - (Peer Reviewed Journal)

Kim, S., Reddy, V., Baker, J.T., Gitz, D.C., Timlin, D.J. 2004. Quantification of photosynthetically active radiation inside sunlit growth chambers. Agricultural and Forest Meteorology.126:117-127.

CROPSYST VB-SIMPOTATO, A CROP SIMULATION MODEL FOR POTATO-BASED CROPPING SYSTEMS: I. MODEL DEVELOPMENT - (Proceedings/Symposium)

Marcos, J., Alva, A.K., Stockle, C., Timlin, D.J., Reddy, V. 2004. CROPSYST VB-SIMPOTATO, a crop simulation model for potato-based cropping systems: 1. model development. International Crop Science Congress Proceedings. (On CD)

CROPSYST VB-SIMPOTATO, A CROP SIMULATION MODEL FOR POTATO-BASED CROPPING SYSTEMS: 2. EVALUATION OF NITROGEN DYNAMICS - (Proceedings/Symposium)

Alva, A.K., Marcos, J., Stockle, C., Reddy, V., Timlin, D.J. 2004. CROPSYST-VB-SIMPOTATO, a crop simulation model for potato-based cropping systems: 2. Evaluation of nitrogen dynamics. International Crop Science Congress Proceedings. (On CD)

MODELING LEAF AND CANOPY GAS EXCHANGE PROCESSES OF CORN - (Abstract)

Kim, S., Timlin, D.J., Reddy, V. 2004. Modeling leaf and canopy gas exchange processes of corn [abstract]. BARC Poster Day. No. 15.

ELEVATED C02 CONCENTRATION ALLEVIATED WATER STRESS IN CORN (ZEA MAYS L.) CROP - (Abstract)

Niu, G., Timlin, D.J., Reddy, V., Kim, S., Fleisher, D.H. 2004. Elevated c02 concentration alleviated water stress in corn (zea mays l.) crop [abstract]. BARC Poster Day. Abstract No. 18.

SPATIAL VARIABILITY IN LANDSCAPE-SCALE AGRICULTURAL EXPERIMENTATION - (Abstract)

Shillito, R.M., Timlin, D.J. 2004. Spatial variability in landscape-scale agricultural experimentation [abstract]. BARC Poster Day. Abstract No. 21.

SIMPLE PARAMETRIC METHODS TO ESTIMATE SOIL WATER RETENTION AND HYDRAULIC CONDUCTIVITY - (Book/Chapter)

Timlin, D.J., Williams, R.D., Ahuja, L.R., Heathman, G.C. 2004. Simple parametric methods to estimate soil water retention and hydraulic conductivity. In: Development of Pedotransfer Functions in Soil Hydrology. Pachepsky, Y. and Rawls, W., editors. Amsterdam: Elsevier. 30:71-93.

USING HIGH-RESOLUTION SOIL MOISTURE DATA TO ASSESS SOILWATER DYNAMICS IN THE VADOSE ZONE - (Peer Reviewed Journal)

Starr, J.L., Timlin, D.J. 2004. Using High-resolution Soil Moisture Data to Assess Soilwater Dynamics in the Vadose Zone. Vadose Zone J. 3(3):926-935.

MODELING LEAF APPEARANCE RATES IN POTATO - (Abstract) - (10-Jan-04)

COMPARING GROUND-WATER RECHARGE ESTIMATES USING ADVANCED MONITORING TECHNIQUES AND MODELS - (Peer Reviewed Journal)

Timlin, D.J., Starr, J.L., Cady, R., Nicholson, T. 2003. Comparing ground-water recharge estimates using advanced monitoring techniques and models. Nureg Series. NUREG/CR-6836, U.S. Nuclear Regulatory Commission, Washington, DC.

COMPARING GROUND-WATER RECHARGE ESTIMATES THROUGH ADVANCED MONITORING AND MODELING ANALYSES. - (Abstract)

Timlin, D.J., Starr, J.L., Nicholson, T., Cady, R. 2003. Comparing ground-water recharge estimates through advanced monitoring and modeling analyses [abstract]. American Society of Agronomy Meetings. CDROM.

MODELING CANOPY DEVELOPMENT AND PHOTOSYNTHESIS IN POTATO - (Abstract)

Timlin, D.J., Kim, S., Pachepsky, Y.A., Reddy, V., Fleisher, D.H., Fraisse, C., Alva, A.K., Baker, J.T. 2003. Modeling canopy development and photosynthesis in potato [abstract]. American Society of Agronomy Meetings. CDROM.

WATER STRESS AND ELEVATED CO2 EFFECTS ON PHOTOSYNTHESIS AND GROWTH IN CORN - (Abstract)

Niu, G., Timlin, D.J., Reddy, V., Kim, S., Gitz, D.C. 2003. Water stress and elevated co2 effects on photosynthesis and growth in corn [abstract]. American Society of Agronomy Meetings. CDROM.

MODELING LEAF AND CANOPY GAS EXCHANGE PROCESSES OF CORN - (Abstract)

Kim, S., Timlin, D.J., Reddy, V. 2003. Modeling leaf and canopy gas exchange processes of corn [abstract]. ASA-CSSA-SSSA Proceedings. Poster No. 215.

RESPONSES OF MAIZE TO ELEVATED CARBON DIOXIDE: FROM GENE EXPRESSION TO WHOLE-PLANTS - (Abstract)

Kim, S., Bae, H., Gitz, D.C., Sicher Jr, R.C., Baker, J.T., Timlin, D.J., Reddy, V. 2003. Responses of maize to elevated carbon dioxide: from gene expression to whole-plants [abstract]. ASA-CSSA-SSSA Proceedings. Poster No. 815.

MODELING GROWTH, DEVELOPMENT, AND PHOTOSYNTHESIS IN POTATO (SOLANUM TUBEROSUM L.) UNDER ELEVATED CO2 - (Abstract)

Timlin, D.J., Rahman, L., Kim, S., Baker, J.T., Reddy, V., Quebedeaux, B., Fraisse, C., Alva, A.K. 2003. Modeling growth, development, and photosynthesis in potato (solanum tuberosum l.) under elevated co2 [abstract]. Models for Plant Growth and Control of Product Quality in Hoticultural Production.

CROP SIMULATION MODELS FOR CORN GROWTH AND DEVELOPMENT - (Abstract)

Reddy, V., Kim, S., Timlin, D.J. 2003. Crop simulation models for corn growth and development [abstract]. Models for Plant Growth and Control of Product Quality in Hoticultural Production. Poster No. 519.

ESTIMATING CARBON DIOXIDE LEAKAGE RATES IN CONTROLLED ENVIRONMENT CHAMBERS USING NITROUS OXIDE - (Abstract)

Baker, J.T., Kim, S., Gitz, D.C., Timlin, D.J., Reddy, V. 2003. A method for estimating carbon dioxide leakage rates in controlled environment chambers using nitrous oxide [abstract]. Environmental and Experimental Botany. 51:103-110

ESTIMATING CARBON DIOXIDE LEAKAGE RATES IN CONTROLLED ENVIRONMENT CHAMBERS USING NITROUS OXIDE - (Peer Reviewed Journal)

Baker, J.T., Kim, S., Gitz, D.C., Timlin, D.J., Reddy, V. 2003. Estimating carbon dioxide leakage rates in controlled environment chambers using nitrous oxide. Environmental and Experimental Botany. 51:103-110.

APPLICATION OF SIMPOTATO MODEL FOR NITROGEN MANAGEMENT OF POTATO IN SANDY SOILS TO MINIMIZE NITRATE LEACHING LOSSES BELOW THE ROOTZONE - (Abstract)

ALVA, A.K., MARCOS, J., FRAISSE, C., TIMLIN, D.J., REDDY, V. APPLICATION OF SIMPOTATO MODEL FOR NITROGEN MANAGEMENT OF POTATO IN SANDY SOILS TO MINIMIZE NITRATE LEACHING LOSSES BELOW THE ROOTZONE. USDA-CSREES NATIONAL WATER QUALITY CONFERENCE (In Press) 2004.

COMPARISON OF POTATO SIMULATION MODELS UNDER EASTERN WASHINGTON CONDITIONS - (Abstract)

MARCOS, J., FRAISSE, C., TIMLIN, D.J., ALVA, A.K. COMPARISON OF POTATO SIMULATION MODELS UNDER EASTERN WASHINGTON CONDITIONS. AGRONOMY ABSTRACTS. ON CD. 2003.

RESPONSES OF CORN (ZEA MAYS L.) TO ELEVATED CO2: FROM GENE EXPRESSION TO WHOLE-PLANTS - (Abstract)

Kim, S., Bae, H., Gitz, D.C., Sicher Jr, R.C., Baker, J.T., Timlin, D.J., Reddy, V. 2003. Responses of corn (zea mays l.) to elevated co2: from gene expression to whole-plants [abstract]. BARC Poster Day. Paper No. 50.

2DSPUD, A TWO-DIMENSIONAL MODEL OF POTATO GROWTH AND DEVELOPMENT. - (Abstract)

Timlin, D.J., Kim, S., Pachepsky, Y.A., Reddy, V., Fraisse, C., Alva, A.K., Baker, J.T. 2003. 2dspud, a two-dimensional model of potato growth and development.[abstract]. Integrated Biological Systems Conference. P. 63.

SIMULATION OF LEAF AND CANOPY PHOTOSYNTHESIS OF MAIZE UNDER ELEVATED CO2 AND VARIOUS TEMPERATURES - (Abstract)

Kim, S., Gitz, D.C., Sicher Jr, R.C., Timlin, D.J., Baker, J.T., Reddy, V. 2003. Simulation of leaf and canopy photosynthesis of maize under elevated co2 and various temperatures. Integrated Biological Systems Conference. P. 53.

USE OF SPATIAL VARIANCE INFORMATION FROM REMOTE SENSING IMAGERY TO MAP VEGETATION FOLIAGE DENSITY - (Abstract)

WALTHALL, C.L., TIMLIN, D.J., PACHEPSKY, Y.A., DULANEY, W.P., DAUGHTRY, C.S. USE OF SPATIAL VARIANCE INFORMATION FROM REMOTE SENSING IMAGERY TO MAP VEGETATION FOLIAGE DENSITY. AMERICAN GEOPHYSICAL UNION. 2002.

2DSPUD, A TWO-DIMENSIONAL MODEL OF POTATO GROWTH AND DEVELOPMENT - (Abstract)

Timlin, D.J., Reddy, V., Pachepsky, Y.A., Baker, J.T., Kim, S., Fraisse, C., Alva, A. 2002. 2dspud, a two-dimensional model of potato growth and development[absract]. ASA-CSSA-SSSA Proceedings. Poster No. 336.

EFFECTS OF ELEVATED C02 CONCENTRATION AND WATER STRESS ON LEAF WATER POTENTIAL, WATER USE AND ROOT GROWTH OF COTTON - (Abstract) - (11-Nov-02)

COMPARING SMALL SCALE SPATIAL RELATIONSHIPS OF SURFACE SOIL WATER - (Abstract)

Fisher, J., Timlin, D.J., Hill, R., Pachepsky, Y.A., Dulaney, W.P., Walthall, C.L. 2002. Comparing small scale spatial relationships of surface soil water. ASA-CSSA-SSSA Proceedings.

LINKING WITHIN-FIELD CROP RESPONSE WITH SOIL CHARACTERISTICS - (Abstract)

Kaul, M., Walthall, C.L., Pachepsky, Y.A., Timlin, D.J. 2002. Linking within-field crop response with soil characteristics [abstract]. In: Abstracts of Agronomy Socieity of America, Soil Science Society of America, Crop Science Society of America, Annual Meeting, November 10-15, 2002. Indianapolis, Indiana [CDROM].

A MIX OF SCALES: TOPOGRAPHIC INFORMATION, POINT SAMPLES AND YIELD MAPS - (Peer Reviewed Journal)

TIMLIN, D.J., PACHEPSKY, Y.A., WALTHALL, C.L. A MIX OF SCALES: TOPOGRAPHIC INFORMATION, POINT SAMPLES AND YIELD MAPS. Bridging Scales in Soil Physics. 2003.

A MIX OF SCALES: TOPOGRAPHIC INFORMATION, POINT SAMPLES AND YIELD MAPS - (Peer Reviewed Journal)

Timlin, D.J., Pachepsky, Y.A., Walthall, C.L. 2003. A mix of scales: topographic information, point samples and yield maps. Bridging Scales in Soil Physics. p. 227-241.

EVALUATING UNCERTAINTIES IN GROUND-WATER RECHARGE ESTIMATES THROUGH ADVANCED MONITORING - (Proceedings/Symposium)

Starr, J.L., Timlin, D.J., Cady, R., Nicholson, T. 2002. Evaluating uncertainties in ground-water recharge estimates through advanced monitoring. Am. Geophy. Union 2002 Spring Meeting Abstracts. 83 (19):S161.

EXPLOITING IMAGE SPATIAL VARIANCE FOR VEGETATION PATTERNS - (Proceedings/Symposium)

Walthall, C.L., Timlin, D.J., Pachepsky, Y.A., Dulaney, W.P., Daughtry, C.S., 2002. Exploiting image spatial variance for vegetatation patterns. In: Proceedings of American Society for Photogrammetry and Remote Sensing, November 12-14, 2002, Denver, Colorado, [CDROM].