Department of Soil and Crop SciencesDepartment of Soil and Crop Sciences

Publications


Total Publications:                                                    (>300)Refereed Journals and Book Chapters:                     71
Scientific Manuscripts in Proceedings:                       73         Scientific Conference Abstract:                                102
Extension Publications:                                           42
Popular Press Publications:                                      32
Intellectual Properties Disclosure:                             02                   

Refereed Publications:

2015:   Longchamps, L., R. Khosla, and R. Reich. 2015. Spatial and temporal variability of soil soil water content in leveled fields. Soil Soc. Am. J. [Accepted in Press]

2015:  Westra, E. P., D. L. Shaner, K. A. Barbarick, and R. Khosla. 2015. Evaluation of Sorption Coefficients for Pyroxasulfone, s-Metolachlor, and Dimethenamid-p. J. of Air, Soil & Water Research. [Published online Nov 2014]

2015:   Moshia, M.E., R. Khosla, D.G. Westfall, J.G. Davis, R. Reich and L. Longchamps. 2015. Precision Manure Management across Site-Specific Management Zones: Top Soil Quality and Environmental Impact. Commun. In Plant Sci and Anal. (Accepted: In Press). Published online: 31 Dec 2014.

2015:   Peter J.A. Kleinman, Anthony R. Buda, Andrew N. Sharpley and Raj Khosla. 2015. Elements of Precision Manure Management. In Precision Conservation. J. Delgado (ed) In press. [Book Chapter]

2015:   Mulla, D., and R. Khosla. Historical Evolution and Recent Advances in Precision Farming. In Advances in Soil Sciences. R. Lal and B. Stewart (ed) [Book Chapter in Press]

2015:   Mzuku, M., R. Khosla, and R. Reich. 2014. Bare Soil Reflectance to Characterize Variability in Soil Properties. Commun. In Soil Sci. [Accepted in Press]

2015:   Longchamps, L, and R. Khosla. 2015. Managing In-Field Spatial Variability
Variable-rate seeding appears to be the logical way. J. of Fluid Fert Found. Vol. 23, No. 3, Issue #89

2014:   Shaver, T.M., R. Khosla, and D.G. Westfall. 2014. Evaluation of two crop canopy sensors for nitrogen recommendations in irrigated maize. Journal of Plant Nutrition. Vol 37:406-419.

2014:   Longchamps, L., and R. Khosla. 2014. Early detection of nitrogen variability in maize (Zea mays L.) using fluorescence. Agron. J Vol. 106 No. 2, p. 511-518

2014:   Reich, R., A. Mohammed, R. Khosla, C. Aguirre-Bravo and M. Mendoza. 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. J. of Forestry Research 25 (1) 87-95.

2014:   Patil, V.C., Khalid A. Al-Gaadi, Rangaswamy Madugundu, ElKamil H.M. Tola, Samy A. Marey, A.M. Al-Omran, R. Khosla, S. K. Upadhyaya, David J. Mulla and Ali Al-Dosari. 2014. Delineation of Management Zones and Response of Spring Wheat (Triticum aestivum L.) to Irrigation and Nutrient Levels in Saudi Arabia. International J. of Agri. Biol. 1560–8530; ISSN Online: 1814–959613–035/2014/16–1–104–110.

2014:   Qiang Cao, Yuxin Miao, Guohui Feng, Xiaowei Gao, Fei Li, Bin Liu, Shanchao Yue, Shanshan Cheng, Susan L. Ustin, and R. Khosla. 2014. Active canopy sensing of winter wheat nitrogen status: An evaluation of two sensor systems. Comput. Electron. Agric. (2014), http://dx.doi.org/10.1016/j.compag.2014.08.012

2014:   Yao, Y., Miao, Y., Cao, Q., Wang, H., Gnyp, M.L., 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. http://dx.doi.org/10.1109/JSTARS.2014.2322659.

2014:   Moshia, M.E., R. Khosla, D.G. Westfall, J.G. Davis, R. Reich and L. Longchamps. 2014. Precision Manure Management across Site-Specific Management Zones: Grain Yield and Economic Analysis. Agron J.

2014:   Moshia, M.E., R. Khosla, D.G. Westfall, J.G. Davis, R. Reich and L. Longchamps. 2014. Precision Manure Management across Site-Specific Management Zones: Nitrogen Mineralization Rates. J. of Plant Nut. Soil Analysis. (Accepted: In Press).

2014:   Eduardo, Claudio, R. Khosla, and R. Reich. 2014. Interpolation type and data computation of crop yield maps is important for precision crop production. J. of Plant Nut. Soil Analysis. (Accepted in Press).

2013:   Longchamps, L., R. Khosla and D.G Westfall. 2013. Can fluorescence based sensing detect nitrogen deficiency at early growth stages of maize? In Precision Agriculture. J. Stafford (ed) Wageningen Academic Publishers. The Netherlands.

2013:   Wang, H., Y. Miao, G. Zhao, Y. Yao, and R. Khosla. 2013. Evaluating different integrated precision rice management strategies in Northeast China. In Precision Agriculture. J. Stafford (ed) Wageningen Academic Publishers. The Netherlands.

2013:   Balasundram, S.K, H. Memarian, and R. Khosla. 2013. Estimating Oil Palm Yields Using Vegetation indicesDerived from Quickbird. Life Sciences Journal 10(4) 851-860.

2013:   Balasundram, S.K, H. Memarian, M.Y. Hakimah, L. Osmund, S. Nini and R. Khosla. 2013. Comparison between Pixel-based and Object-based Image Classification of a Tropical Landscape using SPOT-5 Imagery. J. Appl. Remote Sens. 7(1), 073512 (Aug 28, 2013). doi:10.1117/1.JRS.7.073512

2013:   Cao, Q., Y. Miao, H. Wang, S. Huang, S. Cheng, R. Khosla and R. Jiang. 2013. Non-destructive estimation of rice plant nitrogen status with Crop Circle multispectral active canopy sensor. Field Crops Res. 154:133-144

2012:   Mohamed, A., R.M. Reich, R. Khosla, C. Aguirre-Bravo and M. Mendoza Briseño. 2012. Site productivity curves for the diverse forest types of Jalisco, Mexico. J. of Modera and Bosques.

2012:   Pongpattananurak, N., R. Reich, R. Khosla, C. Aguirre-Bravo. 2012. Modeling the Spatial Distribution of Soil Texture in the State of Jalisco, Mexico. Soil Sci. Soc. Of Amer. J. 76:199-209.

2012:   Cao, Q., C. Zhenling, X. Chen, R. Khosla, T. H. Dao, and Y. Miao. 2012. Quantifying spatial variability of indigenous nitrogen supply for precision nitrogen management in small scale farming. Int’l J. of Preci. Ag. 13:45-61

2011:   Delgado, J., R. Khosla, T. Mueller. 2011. Recent Advances in Precision (Target) Conservation. Featured Article, J. of Soil & Water Consrv. (66) 6 167A-170A.

2011:   Jat, M.L., R. Gupta, Y.S. Sahrawat, and R. Khosla. 2011. Layering Precision Land Leveling and Furrow Irrigated Raised Bed Planting: Productivity and Input Use Efficiency of Irrigated Bread Wheat in Indo-Gangetic Plains. American Journal of Plant Sciences, 2011, 2:588-578.

2011:   Shaner, D., M. Stromberger, R. Khosla, A. Helm, B. Bosley, and N. Hansen. 2011. Spatial Distribution of Enhanced Atrazine Degradation across Northeastern Colorado Cropping Systems. J. of Env. Qual. 40:46-56

2011:   Shaver, T.M., R. Khosla, D. G. Westfall. 2011. Evaluation of two crop canopy sensors for nitrogen variability determination in irrigated maize. Int’l J. of Preci. 12:892-904

2010:   Shaver, T., R. Khosla and D.G. Westfall. 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:   Schwartz, H., D. H. Gent, S. M. Fichtner, R. Khosla, L.A. Mahaffey, M.A. Camper, and W.S. Cranshaw. 2010. Spatial and Temporal Distribution of Iris yellow spot virus and Thrips in Colorado Onion Fields. J. of Plant Health Progress.

2010:   Bausch, W. and R. Khosla. 2010. QuickBird satellite versus ground-based multispectral data for estimating nitrogen status of irrigated maize. J. of Preci Agri. 10: (6) 1-17.

2010:   Khosla, R., D. Westfall, R. Reich, J.S. Mahal and W. J. Gangloff. 2010. Spatial Variation and Site-specific Management Zones. In. Geo-statistical Applications in Precision Agriculture. (ed) M. Oliver. Springer Publishers, Netherlands. Pg 195-219. [Book Chapter]

2010:   Krueger, E., R. Khosla, D. Kurtener and R. Ermakov. 2010. Application of tool for fuzzy multi attributive comparison of different N management strategies. In. Applications of Soft Computing in Agricultural Researches (ed.) V.P. Yakushev, H. A. Torbert, D.A. Kurtener. Agrophysical Research Institute, St. Petersburg, Russia. [Book Chapter]

2010:   Krueger, E., D. Kurtener and R. Khosla. 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. In. Applications of Soft Computing in Agricultural Researches. (ed.) V.P. Yakushev, H. A. Torbert, D.A. Kurtener. Agrophysical Research Institute, St. Petersburg, Russia. [Book Chapter]

2009:   Shaner, D. L., Khosla, R., Helms, A., & Bosley, B. (2009). Enhanced Atrazine Degradation: A Survey of Crop Fields in North-Eastern Colorado. Weed Science, 9-12.

2008:   Shaner, D., R. Khosla, M. Brodhal, G. Buchleiter, and H. Farahani. 2008. How well does zone sampling based on soil electrical conductivity maps represent soil variability. Agron. J. 100:1472-1480.

2008:   Khosla, R., D. Inman, D.G. Westfall, R. Riech, W.M. Frasier, M. Mzuku, B. Koch, and A. Hornung. 2008. A synthesis of multi-disciplinary research in precision agriculture: Site-specific management zones in the semi-arid western Great Plains of the USA. J. of Preci. Ag. 9 (1-2): 85-100.

2008:   Bridges, M., B. Henry, D. Shaner, R. Khosla, P. Westra, and R. Reich. 2008. Spatial variability of atrazine and metolachlor dissipation on dryland no-tillage crop fields in Colorado. J. Env. Qual. 37: 2212-2220.

2008:   Inman, D., R. Khosla, R. Reich, D. G. Westfall. 2008. Normalized Difference Vegetation Index and Soil Color-Based Management Zones in Irrigated Maize. Agron. J. 100: 60-66.

2008:   Khosla, R. and B. Flynn. 2008. Book Chapter. Understanding and Cleaning Yield Monitor Data. In. Soil Science: A Step-by-step Analysis. S. Logsdon (ed) Amer. Soc. Agron. Madison. WI. USA. [Book Chapter]

2007:   Khosla, R., D. Inman, and D. Westfall. 2007. Book Chapter: Site-Specific Management Zones: Seven Years of Research in the irrigated Western Great Plains of the US. In Precision Agriculture. J. Stafford (ed) Wageningen Academic Publishers. 607-613 pp.The Netherlands. [Book Chapter]

2007:   Inman, D., R. Khosla, R. Reich, and D. Westfall. 2007. Active Remote Sensing and Grain Yield in Irrigated Agriculture. J. of Preci. Agri. 8 (4-5): 241-252.

2007:   Hansen, N., S. Ward, R. Khosla, J. Fenwick and W. Moore. 2007. What does undergraduate enrollment in soil and crop sciences mean for the future of agronomy? Agron.  J. 99: 1169-1174.

2007:   Davidson, S., F. Peairs, and R. Khosla. 2007. Insect Pest Densities Across Site-Specific Management Zones of Irrigated Corn in Northeastern Colorado. J. Econ. Entomol. 100: 781-789.

2007:   Inman, D., R. Khosla, W.M. Frasier, D.G. Westfall, and B. Koch. 2007. Book Chapter: Evaluation of Profitability Across Site-Specific Management Zones in Irrigated Maize Production Fields. In Precision Agriculture. J. Stafford (ed) Wageningen Academic Publishers. 835-841 pp. The Netherlands. [Book Chapter]

2007:   Shaver, T., D. Westfall, and R. Khosla. 2007. Book Chapter: Comparison of Three Active Hand-held NDVI Remote Sensors for Nitrogen Management in Maize. In Precision Agriculture. J. Stafford (ed) Wageningen Academic Publishers. 373-379 pp.The Netherlands. [Book Chapter]

2006:   Hornung, A., R. Khosla, R. Reich, D. Inman, and D. Westfall. 2006. Comparison of Site-Specific Management Zones: Soil Color Based and Yield Based. Agron J. 98: 405-417.

2006:   Khosla, R., D. Westfall, R. Reich, and D. Inman. 2006. Temporal and Spatial Stability of Soil Test Parameters Used in Precision Agriculture. Commun. Soil Sci. Plant Anal. 37:2127-2136.

2005:   Mzuku, M., R. Khosla, R. Reich, D. Inman, F. Smith, and L. MacDonald. 2005. Spatial Variability of Measured Soil Properties Across Site Specific Management Zones. Soil Sci. Soc. Am. J. 69: 1572-1579.

2005:   Inman, D., R. Khosla, and T. Mayfield. 2005. On-the-go active remote sensing for efficient crop nitrogen management. Sensor Review. 25: (3) 209-214.

2005:   Inman, D., R. Khosla, D.G. Westfall, and R. Reich. 2005. Nitrogen Uptake across Site-Specific Management Zones in Irrigated Corn Production Systems. Agron. J. 97:169-176.

2005:   Berry, J.K, J. A. Delgado, F. J. Pierce, and R. Khosla. 2005. Applying Spatial Analysis for Precision Conservation Across the Landscape. J. of Soil & Water. 60: 363-370.

2005:   Delgado, J., R. Khosla, D.G. Westfall, W. Bausch, and D. Inman. 2005. Nitrogen Fertilizer Management Based on Site-Specific Management Zones Reduces Potential for NO3-N Leaching. J. of Soil & Water. 60: 402-410.

2005:   Khosla, R., D. Inman, and D.G. Westfall. 2005. Book Chapter: Optimum N management Using Site Specific Management Zones. In Precision Agriculture. J. Stafford (ed) Wageningen Academic Publishers. 827 pp.The Netherlands. [Book Chapter]

2005:   Inman, D., R. Khosla, M. Lefsky, and D.G. Westfall. 2005. Book Chapter: Early Season Grain Yield Prediction Using Site-Specific Management Zones and remote Sensing. In Precision Agriculture. J. Stafford (ed) Wageningen Academic Publishers. 835 pp. The Netherlands. [Book Chapter]

2004:   Koch, B., R. Khosla, D.G. Westfall, M. Frasier, and D. Inman 2004.  Economic feasibility of variable rate N application in irrigated corn. Agron. J. 96:1572-1580.

2004:   Ceplecha, Z.L., R.M. Waskom, T.A. Bauder, J.L. Sharkoff and R. Khosla.  2004. Vulnerability assessments of Colorado ground water to nitrate contamination.  J. Water, Air, and Soil Pollution 159 (1) 373-394.

2004:   Gent, D., H. Schwartz, and R. Khosla. 2004. Distribution and Incidence of Iris Yellow Spot Virus in Colorado and its Relation to Onion Plant Populations and Yield. J. of Plant Diseases. 88 (5) 446-452.

2003:   Berry, J.K., J.A. Delgado, R. Khosla, and F. Pierce. 2003. Precision Conservation for Environmental Sustainability. J. of Soil & Water. 58 (6) 332-339.

2003:   Koch, B., and R. Khosla. 2003. The Role of Precision Agriculture in Cropping Systems. J. Crop Prod. 8: 361-381.

2003:   Koch, B., and R. Khosla, 2003. Book Chapter: The Role of Precision Agriculture in Cropping Systems. In. Cropping Systems: Trends and Advances. A. Shrestha (ed) The Haworth Press, Inc.  696 pp. Binghamton, NY 13904. [Book Chapter]

2003:   Hornung, A., R. Khosla, R. Reich, and D.G. Westfall. 2003. Book Chapter. Evaluation of Site-Specific Management Zones: Grain Yield and Nitrogen Use Efficiency. Pg 297-302. In Precision Agriculture. J. Stafford and A. Werner (eds) Wageningen Academic Publishers 783 pp. The Netherlands. [Book Chapter]

2003:   Gangloff, W., R. Reich, D. Westfall, and R. Khosla.  2003. Book Chapter. Spatial dependence of soil samples and precision farming applications. Pg 223-228. In Precision Agriculture. J. Stafford and A. Werner (eds) Wageningen Academic Publishers 783 pp. The Netherlands. [Book Chapter]

2002:   Khosla, R., K. Fleming, J. Delgado, T. Shaver, and D. Westfall. 2002. Use of Site Specific Management Zones to Improve Nitrogen Management for Precision Agriculture. J. Soil Water Conserv. 57: 513-518.

2002:   Roygard, J.F.K., M.M. Alley, R. Khosla. 2002. No-till Corn Yields and Water Balance in the Mid-Atlantic Coastal Plain. Agron. J. 94: 612-623.

2002:   Anderson-Cook, C.M., M.M. Alley, J.F.K. Roygard, R. Khosla, R. Noble, and J.A. Doolittle. 2002. Differentiating Soil Types Using Electromagnetic Induction and Crop Yield Maps. Soil Sci. Soc. Am. J. 66: 1562-1570.

2000:   Khosla, R., M.M. Alley, and P. H. Davis. 2000. Nitrogen Management in No-Tillage Grain Sorghum Production: I. Rate and Time of Application. Agron J. 92: 321-328.

1999:   Anderson-Cook, C.M., M.M. Alley, Robert Noble, and R. Khosla. 1999. Phosphorous and Potassium Fertilizer Recommendation Variability for Two Mid-Atlantic Coastal Plain Fields. Soil Sci. Soc. Am. J. 63: 1740-1747.

1999:   Persaud, N., and R. Khosla. 1999. Partitioning Soil Water Losses in Different Plant Populations of Dryland Corn. Agric. Water Mgmt. 42: 157-172.

1998:   Khosla, R., and N. Persaud. 1998. Performance of A Commercial Resonant Frequency Capacitance Probe: III. Error Analysis. Commun. Soil Sci. Plant Anal. 29: 2981-2989.

1997:   Khosla, R., and N. Persaud. 1997. Performance of A Commercial Resonant Frequency Capacitance Probe: I. Field Testing and Evaluation. Commun. Soil Sci. Plant Anal. 28: 1333-1345.

1997:   Khosla, R., and N. Persaud. 1997. Performance of A Commercial Resonant Frequency Capacitance Probe: II. Measurement of Water Use of Dryland Crops. Commun. Soil Sci. Plant Anal. 28: 1347-1357.

Note: Complete publication list is available on request

Contact Information:     Plant Sciences C13    Colorado State University     Fort Collins, CO 80523     Voice: 970-491-1920     Fax: 970-491-2758    raj.khosla@colostate.edu