College of Agricultural Sciences Personnel Profile
Personnel Photo of Rajiv  Khosla
Rajiv Khosla
Professor
Soil and Crop Sciences
College of Agricultural Sciences

Plant Sciences Building, Room
Phone:
970-491-1920
Education:
  • Other, Fanning Institute of Leadership Management, University of Georgia; Management and Leadership
  • Ph D, Virginia Tech; Soil Fertility and Crop Mgmt
  • MS, Virginia Tech; Soil Physics
  • BS, University of Allahabad; Ag Sciences

Dr. Raj Khosla is a Professor of Precision Agriculture at Colorado State University. He also shares administrative responsibilities with the College of Agricultural Sciences as the Assistant Dean of International Programs.

Xia, Tingting, Miao, Yuxin, DaliWu, , Shao, Hui, Khosla, Rajiv, Mi, Guohua, (2016) Active Optical Sensing of Spring Maize for In-Season Diagnosis of Nitrogen Status Based on Nitrogen Nutrition Index Journal of Remote Sensing

Siegfried, Jeffrey Alan, Khosla, Rajiv, Longchamps, Louis, (2016) Infrared thermometry to quantify in-field soil moisture variability Journal of Crop Improvement

Souza, E. G., Bazzi, C. L., Khosla, Rajiv, Uribe-Opazo, M. A. , Reich, Robin M, (2016) Interpolation type and data computation of crop yield maps is important for precision crop production Journal of Plant Nutrition

Moshia, M. E., Khosla, Rajiv, Westfall, Dwayne G, Davis, Jessica Gwyn, Reich, Robin M, (2016) Precision Manure Management Across Site-Specific Management Zones: Nitrogen Mineralization. Journal of Plant Nutrition

(2015) Bare Soil Reflectance to Characterize Variability in Soil Properties Commun. In Soil Sci.

Khosla, Rajiv, (2015) Evaluation of Sorption Coefficients for Pyroxasulfone, s-Metolachlor, and Dimethenamid-p Air Soil And Water Research

Mullas, David, Khosla, Rajiv, (2015) "Historical Evolution and Recent Advances in Precision Farming." Advances in Soil Sciences

Khosla, Rajiv, (2015) Managing In-Field Spatial Variability The Fluid Journal 23 3/#89 2

Moshia, M, Khosla, Rajiv, Westfall, Dwayne G, Davis, Jessica Gwyn, Reich, R, Longchamps, Louis, (2015) Precision Manure Management across Site-Specific Management Zones: Top Soil Quality and Environmental Impact. Commun. In Plant Sci and Anal.

Khosla, Rajiv, (2015) Profit Maps for Precision Agriculture Ciencia E Investigacion Agraria 42(3):385-396. 2015

Khosla, Rajiv, (2015) Spatial and Temporal Variability of Soil Water Content in Leveled Fields Soil Science Society of America 79 Soil Sci. Soc. Am. J. 79:1446–1454. 8

Longchamps, Louis, Khosla, Rajiv, Reich, Robin M, (2015) Spatial and Temporal Variability of Soil Water Content in Leveled Fields Soil Science Society of America Journal

Cao, Qiang, Miao, Yuxin, Feng, G, Gao, X, Li, Fei, Liu, Bin, Yue, S, Chencg, S, Ustin, S, Khosla, Raj, (2014) An evaluation of two sensor systems. Comput. Electron Computers and Electronics in Agriculture

Patil, V C, Algaadi, K, Madugundu, R, Tola, ElKamil, Marey, S, Khosla, Rajiv, Al-Omran, A, Upadhyaya, S, Mulla, David, Al-Dosari, Ali, (2014) Delineation of Management Zones and Response of Spring Wheat (Triticum aestivum L.) to Irrigation and Nutrient Levels in Saudi Arabia INTERNATIONAL JOURNAL OF AGRICULTURE & BIOLOGY

Khosla, Rajiv, Longchamps, Louis, (2014) Early detection of nitrogen variability in maize using fluorescence Agronomy Journal

Shaver, Tim, Khosla, Rajiv, Westfall, Dwayne G, (2014) Evaluation of Two Crop Canopy Sensors for Nitrogen Management in irrigated Maize Journal of Plant Nutrition 37 3 406-419

Yao, Y, Miao, Y, Cao, Q, Wang, H, Gnyp, ML, Bareth, G, Khosla, R, Yang, W, Liu, F, Liu, C, (2014) In-season estimation of rice nitrogen status with an active crop canopy sensor. IEEE J. Sel. Topics Appl. Earth Observ. Remote Sens.

Mohammad, Adel, Reich, Robin, Khosla, Rajiv, Aguirre-Bravo, C, Briseño, Martin M, (2014) Influence of climatic conditions, topography and soil attributes on the spatial distribution of site productivity index of the species rich forests of Jalisco, Mexico Journal of Forestry Research

Moshia, Matshwene, Khosla, Rajiv, Davis, Jessica Gwyn, Reich, Robin, Longchamps, Louis, (2014) Precision Manure Management Across Site-Specific Management Zones: grain Yield and Economic Analysis Agronomy Journal

Longchamps, Louis, Khosla, Rajiv, Westfall, Dwayne G, (2013) "Can fluorescence based sensing detect nitrogen deficiency at early growth stages of maize? " Precision Agriculture

Memarian, Hadi, Balasundram, Siva K, Khosla, Rajiv, (2013) Comparison between pixel- and objectbased image classification of a tropical landscape using Système Pour l’Observation de la Terre-5 imagery Journal of Applied Remote Sensing 14

Balasundram, SK, Memarian, H, Khosla, Rajiv, (2013) Estimating Oil Palm Yields Using Vegetation indicesDerived from Quickbird. Life Sciences Journal 10(4) 851-860. 10(4) 851-860.

Cao, Qiang, Miao, Yuxin, Wang, Hongye, Huang, Shanyu, Cheng, Shanshan, Khosla, Rajiv, Jiang, Rongfeng, (2013) Non-destructive estimation of rice plant nitrogen status with CropCircle multispectral active canopy Sensor Field Crops Research

Miao, Yuxin, Khosla, Rajiv, Yao, Yinkun, Knip, Martin , Bareth, George, Jiang, Rongfeng, (2013) "Evaluating Different Active Crop Canopy Sensors for Estimating Rice Yield Potential" Proceedings of the Second International Conference on Agro-Geoinformatics, Fairfax, VA USA

Wang, Hongye , Miao, Yuxin, Zhao, Guangming , Yao, Yinkun, Khosla, Rajiv, (2013) "Evaluating Different Precision Rice Management Strategies in Northeast China" Proceedings of the Second International Conference on Agro-Geoinformatics, Fairfax, VA USA

(2012) "A Combine Harvester Made for India’s Small Farms" Soils & Crop Magazine, May-June

(2012) "A statistical and agronomic approach for Definition of Management zones in Corn and Soybean" In the CD-Rom Proceedings of the 11th International Conference on Precision Agriculture,Indianapolis, IN

(2012) "Active Sensing for rapid Evaluation of apparent Nitrogen Use Efficiency in Winter Wheat Genotypes" Abstracts of the Annual meetings ofthe American Society of Agronomy, Cincinnati, OH

(2012) "Can Active Sensor Based NDVICosistently Classify Wheat Genotypes?" In the CD-Rom Proceedings of the 11th International Conference on Precision Agriculture, Indianapolis, IN

(2012) "Can We Feed the Seven Billion?" BBC Future Science and Environment: http://www.bbc.com/future/story/20120210-is-this-the-new-green-revolution

(2012) "Comparingsensing platforms for Crop Remote Sensing" In the CD-Rom Proceedings of the 11th InternationalConference on Precision Agriculture, Indianapolis, IN

(2012) "Could Active Sensor Based NDVI readingsDifferentiate NUE in Wheat Genotypes?" Proceedings of the Great Plains Soil Fertility Meetings in Denver, CO

(2012) "Current and future agricultural practices andtechnologies which affect fuel efficiency" Harper Adams University,United Kingdom

(2012) "Early Detection of Nitrogen Deficiency in Corn using Fluorescence" Abstracts of theAnnual meetings of the American Society ofAgronomy, Cincinnati, OH

(2012) "Induced Fluorescence as a signature of EarlyCrop Nitrogen Deficiency" Proceedings ofthe Great Plains Soil Fertility Meetings inDenver, CO

(2012) Modeling the SpatialDistribution of Soil Texture in the State ofJalisco, Mexico Soil Sci Soc Of Amer J 76 199-209

(2012) "New technologies boost crop yield, save money,time, resources" Impact, November

(2012) "Precision Ag in the Developing World" CAS Newsletter, February 9-Jan

(2012) "Precision Ag makes in roads in India" Soils & Crop Magazine, May-June 13-Dec

(2012) "Precision Agriculture for Small Scale Agricultural Production Systems" Abstract books of the Third National Conference onAgro-Informatics and Precision Agriculture, Hyderabad, India

(2012) "Precision Agriculture, Food Security" Abstract of the Vth World Congress of Agrologists and Agronomists, Quebec City, Canada

(2012) "Precision NitrogenManagement and Global Nitrogen Use Efficiency" In the CD-Rom Proceedings of the 11th International Conference on Precision Agriculture, Indianapolis, IN

Cao, Q, (2012) Quantifying spatialvariability of indigenous nitrogen supply forprecision nitrogen management in small scalefarming Int’l J of Preci Ag 13 45-61

(2012) "The Constant Challenges forPrecision Agriculture to be established as aManagement System of Agricultural Fields" Proceedings of the ConBAP, International PrecisionAgriculture Conference, Reiberio Preito, Brazil

(2011) "A 10-Year Look Ahead Ar Row Crop Technology" Future of Ag, September

(2011) "Active remote sensing forrapid evaluation of apparent nitrogen useefficiency in winter wheat (Triricum aestivum L) genotypes" Proceedings of the European Conference on Precision Agriculture, Prague, Czech Republic, July

(2011) "Active Sensor basedEvaluation of Multiple Wheat genotypes AcrossDryland and Irrigated Cropping Systems" Abstracts of the Annual meetings of the American Society of Agronomy, San Antonio, TX Oct 16-19

(2011) "Comparison of two active remote canopy sensors todevelop N fertilizer algorithms" Proceedings of the European Conference on Precision Agriculture, Prague, Czech Republic, July

(2011) "Early detection of Nitrogen Deficiency in Corn using Fluorescence" Proceedings of the 2nd Global Workshop on Proximal Soil Sensing,Montreal, Canada May 2011

(2011) Evaluation of ground-based active remote sensorsfor nitrogen management: Field Study Int'l J of Preci Agri

(2011) "Food Security and Precision Agriculture" Abstract book of the Annual Meetings of the Western Soil Science Soceity &Western Crop Science Society, Laramie, WY, June

(2011) "Food Security and Precision Agriculture" Abstracts of the Annual meetingsof the American Society of Agronomy, San Antonio,TX. Oct 16-19

(2011) "Global Food Security and Precision Agriculture" Program book of the Sixth International Symposium on Intelligent Information Technology in Agriculture Beijing, China Oct 2011

(2011) Layering Precision Land Leveling and Furrow Irrigated Raised Bed Planting: Productivity and Input Use Efficiency of Irrigated Bread Wheatin Indo-Gangetic Plains Am J of Plant Sci 2 578-588

(2011) "Precision Agriculture for small Scale Agricultural Systems" Program book of the 4th Asian Conference on Precision Agriculture,Obihiro, Japan July-2011

(2011) "Precision Agriculture for smallScale Agricultural Systems" Program book of the European Conference on Precision Agriculture,Prague, Czech Republic. July 2011

(2011) "Precision Manure Management Conservation practices: Surface Soil Quality and Environmental Impact" Abstracts of the Annual meetings of the American Society of Agronomy, San Antonio, TX Oct 16-19

(2011) "Precision Manure Management Conservation practices: Surface Soil Quality and Environmental Impact" Abstracts of the Annual meetings of the Soil Science Society of America,Washington, DC July

(2011) "Precision Nutrient Management and Crop Sensing" Proceedings of the 2nd International Plant Phenotyping Symposium 2011 Julich, Germany, September, 2011

(2011) "Precision Nutrient Management: Challenges and Opportunities in a Flat World" Abstracts book of the 2011 International Symposiumon Sensing in Agriculture in Memory of Dahlia Greidinger (Agri Sensing Feb 2011)

(2011) RecentAdvances in Precision (Target) Conservation Featured Article, J of Soil & Water Consrv 6 66 167A-179A

(2011) Spatial distributionof enhanced Atrazine degradation across northeastern Colorado Cropping Systems J Environ Qual 40 46-56

(2010) "Active Remote Sensing: An Innovative Technique for Precision Fertilization" Extension Newsletter From the Ground Up 29 1 4-Mar

(2010) "Application of Adaptive Neuro-Fuzzy Inference System for study of relation between Normalized Difference Vegetation Index, yield and soil color-based management zones in irrigated maize" Applications of Soft Computing in Agricultural Researches (ed) VP Yakushev, H A Torbert, DA Kurtener Agrophysical Research Institute, St Petersburg, Russia

(2010) "Application of tool for fuzzy multi attributive comparison of different N management strategies" Applications of Soft Computing in Agricultural Researches (ed) VP Yakushev, H A Torbert, DA Kurtener Agrophysical Research Institute, St Petersburg, Russia

(2010) "Development Of A Nitrogen Requirement Algorithm Using Ground-based Active Remote Sensors In Irrigated Maize" In the CD-Rom Proceedings of the 10th International Conference on Precision Agriculture, Denver, CO July

(2010) "Evaluation of Different N Management Strategies Using A Tool For Fuzzy Multi Attributive Comparison Of Alternatives" In Irrigated Maize In the CD-Rom Proceedings of the 10th International Conference on Precision Agriculture, Denver, CO July

(2010) Evaluation of two ground-based active remote sensors for N variability determination in maize under greenhouse conditions J of Soil Sci Soc of Amer 74 2101-2108

(2010) "How rapidly does enhanced atrazine degradation develop?" Abstracts of the Annual meetings of the Weed Science Society of America, Denver, CO

(2010) "Nitrogen and Water Management Across Site Specific Management Zones Using Active remote Sensing" In the CD-ROM Proceedings of the Fluid Fertilizer Foundation Conference, February, Scottsdale, AZ

(2010) "Precision Agriculture and Resource Management for Livelihood Security in Small Agricultural Systems" In the Proceedings of the Indian Society of Agronomy Meetings in Bangalore, India

(2010) "Precision Agriculture: Challenges and Opportunities in a Flat World" In the Proceedings of the 19th World Congress of Soil Science, Brisbane, Australia, August

(2010) "Precision Agriculture: Opportunities and Challenges in a Flat World" In the Proceedings of the Great Plains Soil Fertility Conference Denver, CO

(2010) "Precision Manure Management Strategies Site Specific Management Zones for Enhancing Corn Grain Yield" Abstracts of the Annual meetings of the American Society of Agronomy, Long Beach, CA Nov, 1-5th

(2010) "Precision Manure Management: It matters where you put your manure" In the CD-Rom Proceedings of the 10th International Conference on Precision Agriculture, Denver, CO

(2010) "Precision Manure Management: It matters where you put your manure" Abstracts of the annual meetings of the Western Society of Soil Science, Las Vegas, NV, June

(2010) "Quantifying Spatial Variability of Indigenous Nitrogen Supply for Precision Nitrogen Management in North China Plain" In the CD-Rom Proceedings of the 10th International Conference on Precision Agriculture, Denver, CO

(2010) QuickBird satellite versus ground-based multi-spectral data for estimating nitrogen status of irrigated maize Precis Agric 11 274-290

(2010) "Spatial and Temporal Changes in Atrazine Degradation Rates in Soil" In the CD-Rom Proceedings of the 10th International Conference on Precision Agriculture, Denver, CO

(2010) Spatial and Temporal Distribution of Iris yellow spot virus and Thrips in Colorado Onion Fields J of Plant Health Progress

(2010) "Spatial Distribution of Enhanced Atrazine Degradation Across North Eastern Colorado: A Survey" Abstracts of the Annual meetings of the Western Weed Science Society of America, Big Island, HI, March

(2010) "Spatial Variation and Site-specific Management Zones" Geo-statistical Applications in Precision Agriculture (ed) M Oliver Springer Publishers, Netherlands 195-219

(2010) "Spatio-Temporal Analysis of Atrazine Degradation And Associate Attributes In Eastern Colorado Soils" In the CD-Rom Proceedings of the 10th International Conference on Precision Agriculture, Denver, CO

(2010) "Treasure Maps, Yield Maps Are Not Enough For Farmers Today: Learn How To Use The Latest Mapping" Successful farming, June

Schwartz, Howard F, Gent, David H, Fichtner, Scott M., Khosla, Rajiv, Reich, Robin, Camper, Matthew A, Mchaffey, Linda A, Cranshaw, Whitney S, (2010) Spatial and temporal distribution of Iris yellow spot virus and thrips in Colorado onion fields APS Plant Management Network

(2009) "Abstract" In program book of the Joint International Agriculture Conference, Waginengen, Netherlands July 6th-8th

(2009) "Bare soil remote sensing imagery for smart soil sampling of management zones" In the abstract book of the International Soil Science and Plant Analysis Conference, Santa Rosa, CA July 20-24th

(2009) "Economics of Fertilization Under Site-Specific Management Zones" In the Proceedings of the 2009 Western Nutrient Management Conference Salt Lake City, UT

(2009) "Enhanced Atrazine Degradation: A Survey of Crop Fields in North-Eastern Colorado" In Abstracts of the Annual meetings of the Weed Science Society of America, Orlando, FL Feb, 9th - 12th

(2009) "Evaluating Different Chlorophyll meter-based approaches to diagnose nitrogen status of summer maize" Proceedings of the 3rd Asian Conference on Precision Agriculture (ACPA) 14-17 October 2009, Beijing, China

(2009) "Evaluation of Ground-Based Active Remote Sensors for Nitrogen Management in Irrigated Maize" In Abstracts of the Annual meetings of the American Society of Agronomy, Pittsburgh, PA Nov, 1-5th

(2009) "Precision Agriculture: Challenges and Opportunities in the Flat World" In the proceedings of the 3rd Asian Conference on Precision Agriculture, Beijing, China October 14th-16th

(2009) "Precision Agriculture: Opportunities and Challenges in a Flat World" In the Proceedings of the 2nd National Conference on Agro-Informatics and precision Farming Raichur, India Dec

(2009) "Precision Agriculture: Opportunities and Challenges in a Flat World" In the Proceedings of the International Conference on Food Secutriy and Environmental Sustainability Kharagpur, India Dec

(2009) "Precision Guidance System: Is Now the Right time?" Extension Newsletter From the Ground Up 27 3 16-18

(2009) "Precision Manure Management across Site-Specific Management Zones in the Western Great Plains of the USA" In the CD-ROM Proceedings of the European Conference on Precision Agriculture, Wageningen, July

(2009) "Precision Manure Management on Site-Specific Management Zones: Surface soil quality and environmental impact" In the abstract book of the Western Society of Soil Science Annual Meetings Fort Collins, CO June 22-23rd

(2009) "Precision Manure Management: Enhancing Soil Quality and Productivity" Newsletter of the Colorado Livestock Association

(2009) "Precision Manure Management: It matters where you put your manure" Extension Newsletter From the Ground Up 28 3 24-25

(2009) "Red and amber normalized difference vegetation index (NDVI) ground-based active remote sensors for nitrogen management in irrigated corn" In the CD-ROM Proceedings of the Fluid Fertilizer Foundation Conference, February, Scottsdale, AZ

(2009) "Remote Sensors to Estimate Winter Wheat Growth" Abstracts of the Annual meetings of the American Society of Agronomy, Pittsburgh, PA Nov, 1-5th

(2009) "Soil Management Zones Increase N Efficiency" http://www.precisionpays.com/2009/07/infoag-talk-soil-management-zones-increase-n-efficiency/ July 30, 2009

(2009) "Uncertainty of Soil Test P and K across Tillage Systems of the Midwest" Abstracts of the Annual meetings of the American Society of Agronomy, Pittsburgh, PA Nov, 1-5th

(2009) "Zone Soil Sampling: A smart way to quantify in-field variability for crop management" Extension Newsletter From the Ground Up 28 1 11-Oct

(2008) A synthesis of multi-disciplinary research in precision agriculture Precis Agric 9 85-100

(2008) "Correlation of normalized difference vegetative indices (NDVI) and crop variables with corn grain yield" In Proceedings of the 9th International Conference on Precision Agriculture, Denver, CO July 21-23

(2008) "Grid Sampling may be best, but zone sampling may be right" Ag Professional, April

(2008) "Ground based active remote sensors to determine Nitrogen variability in irrigated corn" In Abstracts of the Annual meetings of the American Society of Agronomy, Houston, TX Oct, 5th- 9th

(2008) "Have you noticed your atrazine application is not protecting your crop anymore?" Extension Newsletter From the Ground Up 27 4 7-Jun

(2008) How well does zone sampling based on soil electrical conductivity maps represent soil variability? Agron J 100 1472-1480

(2008) "Long Train of Technology Continue to Advance" High Plains Journal, Nov

(2008) "Matt Nilsson" Crop Soil and Agronomy News (CSA News) October 53 10 4-Feb

(2008) "Modeling the Spatial Distribution of Soil pH In The State Of Jalsico, Mexico" In Proceedings of the 9th International Conference on Precision Agriculture, Denver, CO July 21-23

(2008) "Myths of Precision Farming" Extension Newsletter From the Ground Up, August 27 2 14-16

(2008) "New Advances and Practices for Precision Conservation" In Proceedings of the 9th International Conference on Precision Agriculture, Denver, CO July 21-23

(2008) "Nitrogen Mineralization Rate of Animal Manure across Productivity Level Management Zones" In Proceedings of the 9th International Conference on Precision Agriculture, Denver, CO July 21-23

(2008) "Nitrogen mineralization rate of animal manure across productivity level management zones" In Proceedings of the Great Plains Soil Fertility Meetings, March 4th- 5th, Denver, CO

(2008) Normalized difference vegetation index and soil color-based management zones in irrigated maize Agron J 100 60-66

(2008) "Precision Equipment comes into its own" Capital Press, Oct

(2008) "Precision Farming Advances Agricultural Sustainability" Vector1 Media http://vector1media.com/article/feature/precision-farming-advances-agricultural-sustainability/ Feb 10, 2008

(2008) "Precision Manure Management Across Management Zones in the Western Great Plains of the USA" In Abstracts of the Annual meetings of the American Society of Agronomy, Houston, TX Oct, 5th - 9th

(2008) "Precision Manure Management Strategies across Site Specific Management Zones for Enhancing Corn (Zea Mays L) Grain Yield" In Proceedings of the 9th International Conference on Precision Agriculture, Denver, CO July 21-23

(2008) "Spatial and Temporal Distribution of Iris yellow spot virus and Thrips of Onion in Colorado" In the Proceedings of the 9th International Conference on Precision Agriculture, Denver, CO July

(2008) "Spatial and Temporal Distribution of Thrips and IYSV of Onion in Colorado" In the Proceedings of the National Association of Regional Councils meeting, Savannah, GA, Dec

(2008) Spatial Variability of Atrazine and Metolachlor Dissipation on Dryland No-tillage Crop Fields in Colorado J Environ Qual 37 2212-2220

(2008) "The Five R's of Precision" Precision Pays, Nov

(2008) "Understanding and Cleaning Yield Monitor Data (Book Chapter)" In Soil Science: A Step-by-step Analysis S Logsdon (ed) Amer Soc Agron Madison WI USA

(2008) "Utilizing normalized difference vegetation indices (NDVI) and in-season crop and soil variables to estimate corn grain yield" In the Proceeding of the 26th Annual Meetings of the Fluid Fertilizer Foundation in Scottsdale, AZ in Feb 2008

(2007) Active remote sensing and grain yield in irrigated maize Precis Agric 8 241-252

(2007) Insect pest densities across site-specific management zones of irrigated corn in northeastern Colorado J Econ Entomol 100 781-789

(2007) What does undergraduate enrollment in soil and crop sciences mean for the future of agronomy? Agron J 99 1169-1174

(2006) Comparison of site-specific management zones Agron J 98 407-415

(2006) Temporal and spatial stability of soil test parameters used in precision agriculture Commun Soil Sci Plan 37 2127-2136

(2005) Applying spatial analysis for precision conservation across the landscape J Soil Water Conserv 60 363-370

(2005) Early season grain yield prediction using remote sensing and site-specific management zones Agron J 98 835-841

(2005) Nitrogen fertilizer management based on site-specific management zones reduces potential for nitrate leaching J Soil Water Conserv 60 402-410

(2005) Nitrogen uptake across site specific management zones in irrigated corn production systems Agron J 97 169-176

(2005) Optimum N management using site-specific management zones Agron J 98 827-834

(2005) Spatial variability of measured soil properties across site-specific management zones Soil Sci Soc Am J 69 1572-1579

(2004) Distribution and incidence of Iris yellow spot virus in Colorado and its relation to onion plant population and yield Plant Dis 88 446-452

(2004) Economic feasibility of variable-rate nitrogen application utilizing site-specific management zones Agron J 96 1572-1580

(2004) Managing Iris yellow spot virus of onion with cultural practices, host genotype, and novel chemical treatments Phytopathology 94 S34-S34

(2004) Vulnerability assessments of Colorado ground water to nitrate contamination Water Air Soil Poll 159 373-394

Gent, David h, Schwartz, Howard F, Khosla, Rajiv, (2004) Distribution and incidence of Iris yellow spot virus in Colorado and its relation to onion plant population and yield Plant Dis 88 446-452

(2003) Evaluation of site-specific management zones Plant Dis 88 297-302

(2003) Precision conservation for environmental sustainability J Soil Water Conserv 58 332-339

(2003) Spatial dependence of soil samples and precision farming applications Plant Dis 88 223-228

(2002) Differentiating soil types using electromagnetic conductivity and crop yield maps Soil Sci Soc Am J 66 1562-1570

(2002) No-till corn yields and water balance in the mid-Atlantic coastal plain Agron J 94 612-623

(2002) Use of site-specific management zones to improve nitrogen management for precision agriculture J Soil Water Conserv 57 513-518

(2001) "Decision support for crop management usingremote sensing" Proceedings of World Congress ofComputers in Agriculture and Natural Resources Mar 13-15th 2002 Iguacu Falls, Brazil

(2000) Nitrogen management in no-tillage grain sorghum production Agron J 92 321-328

(1999) Partitioning soil-water losses in different plant populations of dry-land corn Agr Water Manage 42 157-172

(1999) Phosphorous and potassium fertilizer recommendation variability for two mid-Atlantic Coastal Plain fields Soil Sci Soc Am J 63 1740-1747

(1998) Performance of a non-nuclear resonant frequency capacitance probe, Error analysis Commun Soil Sci Plan 29 2981-2989

(1997) Performance of a non-nuclear resonant frequency capacitance probe, Calibration and field testing Commun Soil Sci Plan 28 1333-1345