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Richard M Johnson (PhD)
Sugarcane Research
Research Agronomist

Phone: (985) 873-8635
Fax: (985) 873-7894

5883 USDA ROAD
HOUMA, LA 703605578
Projects
New Crop Production and Protection Practices to Increase Sugarcane Ratoon Longevity and Maximize Economic Sustainability
In-House Appropriated (D)
  Accession Number: 437753
Evaluation of Small Unmanned Aerial Systems (sUAS) for Sugarcane Monitoring
Non-Funded Cooperative Agreement (N)
  Accession Number: 418694
Three-way (LSUAC, ASCL, ARS) Sugarcane Breeding and Variety Development Agreement
Non-Funded Cooperative Agreement (N)
  Accession Number: 432353
Evaluation of New Micronutrient and Plant Hormone Formulations for Improved Crop Yields, Ratooning Ability and Enhanced Disease Resistance
Trust Fund Cooperative Agreement (T)
  Accession Number: 431515
Improving Sugarcane Production Efficiency (ASCL)
Trust Fund Cooperative Agreement (T)
  Accession Number: 438359

Publications (Clicking on the reprint icon Reprint Icon will take you to the publication reprint.)
Convolutional neural networks and transfer learning for quality inspection of different sugarcane varieties Reprint Icon - (Peer Reviewed Journal)
Alencastre-Miranda, M., Johnson, R.M., Krebs, H.I. 2020. Convolutional neural networks and transfer learning for quality inspection of different sugarcane varieties. IEEE Transactions on Industrial Informatics. https://doi.org/10.1109/TII.2020.2992229.
West Indian Canefly (Hemiptera: Delphacidae): An emerging pest of Louisiana sugarcane Reprint Icon - (Peer Reviewed Journal)
Wilson, B.E., Beuzelin, J.M., Richard, R.T., Johnson, R.M., Gravois, K.A., White, W.H. 2019. West Indian Canefly (Hemiptera: Delphacidae): An emerging pest of Louisiana sugarcane. Journal of Economic Entomology. 113(1):263-272. https://doi.org/10.1093/jee/toz284.
Effect of cobalt and starter fertilizer applied at planting on cane and sugar yields in Louisiana - (Abstract Only)
Johnson, R.M., Da Silva, D.P. 2019. Effect of cobalt and starter fertilizer applied at planting on cane and sugar yields in Louisiana [abstract]. Journal American Society of Sugar Cane Technologists. 39:40.
Robotics for sugarcane cultivation: analysis of billet quality using computer vision Reprint Icon - (Peer Reviewed Journal)
Alencastre-Miranda, M., Davidson, J.R., Johnson, R.M., Waguespack, H., Krebs, H.I. 2018. Robotics for sugarcane cultivation: analysis of billet quality using computer vision. International of Electrical and Electronics Engineers (IEEE) Robotics and Automation Letters. 3(4):3828-3835. https://doi.org/10.1109/LRA.2018.2856999.
Development of an overhead optical yield monitor for a sugarcane harvester in Louisiana - (Proceedings)
Price, R.R., Johnson, R.M., Viator, R.P. 2018. Development of an overhead optical yield monitor for a sugarcane harvester in Louisiana. International Conference on Precision Agriculture Abstracts & Proceedings. p. 1-3. https://www.ispag.org/Proceedings.
Family selection with vegetation indices derived from UAS acquired aerial imagery - (Abstract Only)
Todd, J.R., Johnson, R.M. 2018. Family selection with vegetation indices derived from UAS acquired aerial imagery [abstract]. Journal of the American Society of Sugar Cane Technologists. 38:66.
An overhead optical yield monitor for a sugarcane harvester based on two optical distance sensors mounted above the loading elevator Reprint Icon - (Peer Reviewed Journal)
Price, R.R., Johnson, R.M., Viator, R.P. 2017. An overhead optical yield monitor for a sugarcane harvester based on two optical distance sensors mounted above the loading elevator. Applied Engineering in Agriculture. 33:687-693. https://doi.org/10.13031/aea.12191.
Improving soil management in sugarcane cultivation ()
White Jr, P.M., Johnson, R.M. 2017. Improving soil management in sugarcane cultivation. In: P. Rott, editor. Achieving sustainable cultivation of sugarcane. Volume 1 - Cultivation techniques, quality and sustainability. Cambridge, UK. Burleigh Dodds Science Publishing. p. 97-109.
Effect of potassium fertilizer application on the yield and quality of current sugarcane varieties in Louisiana - (Abstract Only)
Johnson, R.M. 2017. Effect of potassium fertilizer application on the yield and quality of current sugarcane varieties in Louisiana [abstract]. Journal of the American Society of Sugar Cane Technologists. 37:53.
Effect of foliar application of glyphosate and cobalt on sugarcane yields and quality - (Abstract Only)
Da Silva, D.P., Richard, K.A., King, B.G., Johnson, R.M. 2017. Effect of foliar application of glyphosate and cobalt on sugarcane yields and quality [abstract]. Journal of the American Society of Sugar Cane Technologists. 37:39-40.
Effect of growth regulators, boron and molybdenum on sugarcane grown in the greenhouse - (Abstract Only)
Da Silva, D.P., Richard, K.A., King, B.G., Johnson, R.M. 2017. Effect of growth regulators, boron and molybdenum on sugarcane grown in the greenhouse [abstract]. Journal of the American Society of Sugar Cane Technologists. 34:47.
A survey of the Louisiana sugarcane crop for insect pests ()
Richard, R.T., Johnson, R.M. 2016. A survey of the Louisiana sugarcane crop for insect pests. Sugar Bulletin. 94(10):23-24.
Assessing the variability of Red Stripe Disease in Louisiana sugarcane using precision agriculture methods - (Proceedings)
Relationship of soil properties and sugarcane yields to red stripe in Louisiana Reprint Icon - (Peer Reviewed Journal)
Johnson, R.M., Grisham, M.P., Warnke, K.Z., Maggio, J.R. 2016. Relationship of soil properties and sugarcane yields to red stripe in Louisiana. Phytopathology. 106:737-744.
Assessment of sugarcane yield potential across large numbers of genotypes using canopy reflectance measurements - (Peer Reviewed Journal)
Zhao, D., Gordon, V.S., Comstock, J.C., Glynn, N.C., Johnson, R.M. 2016. Assessment of sugarcane yield potential across large numbers of genotypes using canopy reflectance measurements. Crop Science. 56:1747-1759.
Sugarcane yields do not respond to phosphorus fertilizer in ratoon crops of LCP 85-384 in Louisiana Reprint Icon - (Peer Reviewed Journal)
Johnson, R.M., Viator, H.P., Stevens, J.C., Turbana, B.S. 2017. Sugarcane yields do not respond to phosphorus fertilizer in ratoon crops of LCP 85-384 in Louisiana. Journal of American Society of Sugar Cane Technologists. 37:1-12.
Relationships between Sugarcane Canopy Reflectance and Yield Components across a Large Number of Genotypes - (Abstract Only)
Zhao, D., Gordon, V.S., Comstock, J.C., Neil, G., Johnson, R.M. 2015. Relationships between Sugarcane Canopy Reflectance and Yield Components across a Large Number of Genotypes. Sugar Journal. 78(1):10.
Quantification of red stripe variability in Louisiana sugarcane using precision agriculture methods - (Abstract Only)
Johnson, R.M., Grisham, M.P. 2015. Quantification of red stripe variability in Louisiana sugarcane using precision agriculture methods. Journal of the American Society of Sugar Cane Technologists. 35:45.
Evaluation of optical sensing and variable nitrogen rate application in Louisiana sugarcane production systems - (Abstract Only)
Nitrogen management research in Louisiana sugarcane production systems ()
Tubana, B.S., Johnson, R.M., Viator, H.P. 2015. Nitrogen management research in Louisiana sugarcane production systems. Sugar Bulletin. 93(7):17-18.
Sugarcane soil fertility research: New data and current recommendations - (Abstract Only)
Energycane production for biomass and bioenergy feedstocks in Louisiana - (Abstract Only)
Influence of foliar copper and nickel applications on sugarcane yields in brown rust infested fields in Louisiana - (Abstract Only)
Johnson, R.M., Grisham, M.P. 2014. Influence of foliar copper and nickel applications on sugarcane yields in brown rust infested fields in Louisiana [abstract]. Journal of the American Society of Sugar Cane Technologists. 34:57-58.
Effect of sugarcane smut on yield and the relationship of soil properties with smut incidence - (Abstract Only)
Grisham, M.P., Johnson, R.M., Ball, B. 2014. Effect of sugarcane smut on yield and the relationship of soil properties with smut incidence [abstract]. Journal of the American Society of Sugar Cane Technologists. 34:69-70.
Red stripe caused by Acidovirax avenae subsp. avenae in Louisiana sugarcane - (Abstract Only)
Grisham, M.P., Johnson, R.M. 2014. Red stripe caused by Acidovirax avenae subsp. avenae in Louisiana sugarcane [abstract]. Phytopathology. 104(Suppl. 3):S3:472.
Uniform and variable-rate application of potassium fertilizers in Louisiana sugarcane production systems - (Abstract Only)
Sugarcane smut test - (Abstract Only)
How much fertilizer nitrogen does sugarcane need? ()
Viator, H.P., Johnson, R.M., Tubana, B.S. 2013. How much fertilizer nitrogen does sugarcane need? Sugar Journal. 76(5):24-26.
How much fertilizer nitrogen does sugarcane need? ()
Viator, H.P., Johnson, R.M., Tubana, B.S. 2013. How much fertilizer nitrogen does sugarcane need? Sugar Bulletin. 91(11):19-21.
Nitrogen fertilizer trials with sugarcane in Louisiana (Re-evaluation leads to lower recommended nitrogen fertilizer rates for Sugarcane) ()
Viator, H.P., Johnson, R.M., Tubana, B. 2013. Nitrogen fertilizer trials with sugarcane in Louisiana (Re-evaluation leads to lower recommended nitrogen fertilizer rates for sugarcane). Louisiana Agriculture. 56(2):14-15.
Disease concerns in energycane - (Proceedings)
Grisham, M.P., Hale, A.L., Johnson, R.M. 2012. Disease concerns in energycane. Proceedings of Sun Grant National Conference: Science for Biomass Feedstock Production and Utilization, October 3 - 5, 2012. New Orleans, LA. Available: http://sungrant.tennessee.edu/NatConference/
Spatial variability of sugarcane yields in relation to soil salinity in Louisiana - (Proceedings)
Johnson, R.M., Viator, R.P. 2012. Spatial variability of sugarcane yields in relation to soil salinity in Louisiana. In: Proceedings of the International Conference on Precision Agriculture, July 15-18, 2012, Indianapolis, IN. 2012 CDROM.
Precision agricultural techniques for identifying yield limiting factors in Louisiana sugarcane - (Abstract Only)
Johnson, R.M., Viator, R.P., White, W.H. 2012. Precision agricultural techniques for identifying yield limiting factors in Louisiana sugarcane. Journal of the American Society of Sugar Cane Technologists. 32:77.
Development of Leaf Spectral Models for Evaluating Large Numbers of Sugarcane Genotypes Reprint Icon - (Peer Reviewed Journal)
Zhao, D., Glynn, N.C., Glaz, B.S., Comstock, J.C., Johnson, R.M. 2012. Development of Leaf Spectral Models for Evaluating Large Numbers of Sugarcane Genotypes. Crop Science. 52:1837-1847.
Disease concerns in energycane - (Abstract Only)
Determining yield loss caused by brown rust in production fields of sugarcane - (Abstract Only)
Effects of billet planting rate and position on sugarcane yields in Louisiana - (Peer Reviewed Journal)
Johnson, R.M., Viator, R.P., Richard Jr, E.P. 2011. Effects of billet planting rate and position on sugarcane yields in Louisiana. Journal of the American Society of Sugar Cane Technologists. 31:79-90.
Effects of cultivation frequency on sugarcane yields - (Abstract Only)
Viator, R.P., Johnson, R.M., Richard Jr, E.P. 2011. Effects of cultivation frequency on sugarcane yields. Journal of the American Society of Sugar Cane Technologists. 31:56.
Top rot form of red stripe caused by Acidovirax avenae subsp. avenae in Louisiana sugarcane - (Abstract Only)
Grisham, M.P., Johnson, R.M. 2011. Top rot form of red stripe caused by Acidovirax avenae subsp. avenae in Louisiana sugarcane. Phytopathology. 101(6):564.
Factors affecting incidence, severity, and yield loss caused by the top rot form of red stripe - (Abstract Only)
Fiber optic yield monitor for a sugarcane chopper harvester - (Peer Reviewed Journal)
Price, R.R., Johnson, R.M., Viator, R.P., Larsen, J., Peters, A. 2011. Fiber optic yield monitor for a sugarcane chopper harvester. Transactions of the ASABE. 54(1):31-39.
Prediction of sugarcane sucrose content with high resolution, hyperspectral leaf reflectance measurements - (Peer Reviewed Journal)
Johnson, R.M., Richard Jr, E.P. 2011. Prediction of sugarcane sucrose content with high resolution, hyperspectral leaf reflectance measurements. International Sugar Journal. 113:48-55.
Effects of cultivation frequency on sugarcane yields - (Peer Reviewed Journal)
Viator, R.P., Johnson, R.M., Richard Jr, E.P. 2010. Effects of cultivation frequency on sugarcane yields. Sugar Cane International. 28(6):259-265.
Precision agriculture research in the Louisiana sugarcane industry: Where are we now? ()
Johnson, R.M., Viator, R.P., Price, R.R., Richard Jr, E.P. 2010. Precision agriculture research in the Louisiana sugarcane industry: Where are we now?. Sugar Journal. 73:34-36.
Changes in Juice Quality and Sugarcane Yield with Recurrent Selection for Sucrose - (Peer Reviewed Journal)
Lingle, S.E., Johnson, R.M., Tew, T.L., Viator, R.P. 2010. Changes in Juice Quality and Sugarcane Yield with Recurrent Selection for Sucrose. Field Crops Research. 118:152-157.
Detecting sugarcane yellow leaf virus in asymptomatic sugarcane leaves with hyperspectral remote sensing and associated leaf pigment changes - (Abstract Only)
Grisham, M.P., Johnson, R.M., Zimba, P.V. 2010. Detecting sugarcane yellow leaf virus in asymptomatic sugarcane leaves with hyperspectral remote sensing and associated leaf pigment changes. Phytopathology. 100:S43.
Prediction of sugarcane sucrose content with high resolution, hyperspectral leaf reflectance measurements - (Abstract Only)
Johnson, R.M., Richard Jr, E.P. 2010. Prediction of sugarcane sucrose content with high resolution, hyperspectral leaf reflectance measurements [abstract]. Agronomy Society of America, Crop Science Society of America, Soil Science Society of America Meeting. October 31 - November 3, 2010, Long Beach, California. 2010 CDROM.
Detecting Sugarcane yellow leaf virus infection in asymptomatic leaves with hyperspectral remote sensing and associated leaf pigment changes - (Peer Reviewed Journal)
Grisham, M.P., Johnson, R.M., Zimba, P.V. 2010. Detecting Sugarcane yellow leaf virus infection in asymptomatic leaves with hyperspectral remote sensing and associated leaf pigment changes. Journal of Virological Methods. 167(2):140-145.
The after-harvest burning question? ()
Viator, R.P., Johnson, R.M., Richard Jr, E.P. 2010. The after-harvest burning question? Sugar Journal.72(9):22,26.
Sugarcane residue decomposition by white and brown rot microorganisms - (Peer Reviewed Journal)
Lyn, M.E., Boopathy, R., Boykin, D.L., Weaver, M.A., Viator, R.P., Johnson, R.M. 2010. Sugarcane residue decomposition by white and brown rot microorganisms. Sugar Cane International. 28(1):37-42.
Early harvest affects sugarcane ratooning ability in Louisiana - (Peer Reviewed Journal)
Viator, R.P., Dalley, C.D., Johnson, R.M., Richard Jr, E.P. 2010. Early harvest affects ratooning ability in Louisiana. Sugar Cane International. 28(3):123-127.
Recurrrent Selection for Sucrose Content has Altered Growth and Sugar Accumulation in Sugarcane - (Peer Reviewed Journal)
Lingle, S.E., Viator, R.P., Johnson, R.M., Tew, T.L., Boykin, D.L. 2009. Recurrrent Selection for Sucrose Content has Altered Growth and Sugar Accumulation in Sugarcane. Field Crops Research. 113(3):306-311.
Effect of ratoon stunting disease on yield of recently released sugarcane cultivars in Louisiana - (Peer Reviewed Journal)
Grisham, M.P., Johnson, R.M., Viator, R.P. 2009. Effect of ratoon stunting disease on yield of recently released sugarcane cultivars in Louisiana. Journal of the American Society of Sugar Cane Technologists. 29:119-127.
Sugarcane Post-Harvest Residue Management in Louisiana - (Abstract Only)
Viator, R.P., Johnson, R.M., Richard Jr, E.P. 2009. Sugarcane Post-Harvest Residue Management in Louisiana [abstract]. In: ISSCT Agronomy Workshop, 2009, Brazil. International Society of Sugarcane Technologists Agronomy Workshop, May 22 - 29, 2009, Uberlandia, Brazil.
Variable rate lime application in Louisiana sugarcane production systems - (Peer Reviewed Journal)
Johnson, R.M., Richard Jr., E.P. 2010. Variable rate lime application in Louisiana sugarcane production systems. Precision Agriculture. 11:464-474. DOI: 10.1007/s11119-009-9140-2.
Effects of mechanical removal and incorporation of post-harvest residue on ratoon sugarcane yields - (Peer Reviewed Journal)
Viator, R.P., Johnson, R.M., Richard Jr, E.P. 2009. Effects of mechanical removal and incorporation of post-harvest residue on ratoon sugarcane yields. Sugar Cane International. 27(4):149-152.
Recurrent selection for sucrose has altered assimilate partitioning between growth and storage in sugarcane internodes - (Abstract Only)
Lingle, S.E., Johnson, R.M., Viator, R.P., Tew, T.L., Boykin, D.L. 2009. Recurrent selection for sucrose has altered assimilate partitioning between growth and storage in sugarcane internodes (abstract). Annual Meetings Abstract CD-ROM, International Annual Meetings of ASA-CSSA-SSSA, Nov. 1-5, 2009, Pittsburgh, PA.
Determination of Yield and Soil Variability in Louisiana Sugarcane Using Selected Tools of Precision Agriculture - (Abstract Only)
Johnson, R.M., Viator, R.P., Richard Jr, E.P. 2009. Determination of Yield and Soil Variability in Louisiana Sugarcane Using Selected Tools of Precision Agriculture [abstract]. International Society of Sugarcane Technologists Agronomy Workshop, Abstracts of Communications. pp. 42 - 43.
Sugarcane postharvest residue management in a temperate climate - (Peer Reviewed Journal)
Viator, R.P., Johnson, R.M., Boykin, D.L., Richard Jr, E.P. 2009. Sugarcane postharvest residue management in a temperate climate. Crop Science. 49(3):1023-1028.
Discrimination of Sugarcane Varieties with Pigment Profiles and High Resolution, Hyperspectral Leaf Reflectance Data - (Peer Reviewed Journal)
Johnson, Richard M., Viator, Ryan P., Veremis, John C., Richard Jr., Edward P., Zimba, Paul V. 2008. Discrimination of Sugarcane Varieties with Pigment Profiles and High Resolution, Hyperspectral Leaf Reflectance Data. Journal of the American Society of Sugar Cane Technologists. 28:63-75.
Variable-Rate Lime Application for Louisiana Sugarcane Production Systems - (Abstract Only)
Johnson, R.M., Viator, H.P. 2009. Variable-Rate Lime Application for Louisiana Sugarcane Production Systems. Proc. Joint International Agricultural Conference. 2009: ICT for Agriculture and Precision Farming, July 6-8, 2009, Wageningen, Netherlands, p. 277.
Yield Loss in Smut-Infected L 97-128. ()
Grisham, M.P., Johnson, R.M., Viator, R.P., Hoy, J.W. 2008. Yield Loss in Smut-Infected L 97-128. Sugar Bulletin. 86(11):9-11.
Use of precision agriculture techniques for sugarcane pathology studies ()
Grisham, M.P., Johnson, R.M., Viator, R.P., Zimba, P.V. 2008. Use of precision agriculture techniques for sugarcane pathology studies. Sugar Journal. 71(1):24,27.
Influence of nonoptimal ripener applications and postharvest residue retention on sugarcane second ratoon yields - (Peer Reviewed Journal)
Viator, R.P., Johnson, R.M., Richard Jr, E.P., Waguespack, H.L., Jackson, W. 2008. Influence of nonoptimal ripener applications and postharvest residue retention on sugarcane second ratoon yields. Agronomy Journal. 100(6):1769-1773.
The application of precision agriculture technologies to sugarcane ()
Viator, H.P., Johnson, R.M., and Walcott, M. 2008. The Application of Precision Agriculture Technologies to Sugarcane. Louisiana Agriculture. 51(2):40-42.
Cultivation needed for profitable stubble crops ()
Viator, R.P., Salassi, M.E., Johnson, R.M., Richard Jr, E.P. 2008. Cultivation needed for profitable stubble crops. Sugar Bulletin. 86(7):22-23.
Techniques for determining disease variability and yield loss in commercial sugarcane - (Abstract Only)
Grisham, M.P., Johnson, R.M., Viator, R.P., Zimba, P.V. 2008. Techniques for determining disease variability and yield loss in commercial sugarcane [abstract]. Proceeding of International Society of Sugar Cane Technologists Pathology Workshop. Presentation No. 29.
Sugarcane Fertilizer Recommendations for the 2008 Crop Year ()
Johnson, R.M., Viator, H.P., Legendre, B.L. 2008. Sugarcane Fertilizer Recommendations for the 2008 Crop Year. Sugar Bulletin. 86:11-13.
Combined glyphosate-ripener and residue blanket stresses reduce ratoon yields in Louisiana ()
Viator, R.P., Dalley, C.D., Johnson, R.M., Richard Jr, E.P. 2008. Combined glyphosate-ripener and residue blanket stresses reduce ratoon yields in Louisiana. Sugar Journal. 70(8):6.
Green-cane residue management in a non-tropical climate ()
Viator, R.P., Johnson, R.M., Richard Jr, E.P. 2008. Green-cane residue management in a non-tropical climate. Sugar Journal. 70(9):12.
Variability of sugarcane yield in relation to soil variability in commercial Louisiana production sytems - (Proceedings)
Johnson, R.M., Viator, R.P., Richard Jr, E.P. 2007. Variability of sugarcane yield in relation to soil variability in commercial Louisiana production systems. In: Proceedings of the IV International Symposium of Precision Agriculture (SIAP 2007), October 23-25, 2007, Vicosa, Brazil. 2007 CDROM.
Sugarcane Post-Harvest Residue Management in the Temperate Climate of Louisiana - (Abstract Only)
Viator, R.P., Johnson, R.M., Richard Jr, E.P. 2007. Sugarcane Post-Harvest Residue Management in the Temperate Climate of Louisiana [abstract]. In: Agronomy Society of America, Crop Science Society of America, Soil Science Society of America, 2007 International Annual Meetings Abstracts, November 4-8, 2007, New Orleans, Louisiana. CDROM.
Estimation of sugarcane sucrose and biomass with remote sensing techniques - (Abstract Only)
Johnson, R.M., Viator, R.P., Richard Jr, E.P. 2007. Estimation of sugarcane sucrose and biomass with remote sensing techniques [abstract]. Journal of the American Society of Sugar Cane Technologists. 27:68.
Allelopathic, Autotoxic, and Hormetic Effects of Post-harvest Sugarcane Residue - (Abstract Only)
Viator, R.P., Johnson, R.M., Grimm, C.C., Richard Jr, E.P. 2007. Allelopathic, Autotoxic, and Hormetic Effects of Post-harvest Sugarcane Residue [abstract]. Journal of the American Society of Sugar Cane Technologists. 27:69.
Sugarcane Post-harvest Residue Retention and Certain Ripener Applications Reduce First and Second Ratoon Yields - (Abstract Only)
Viator, R.P., Johnson, R.M., Richard Jr, E.P., Waguespack, H.L., Jackson, W. 2007. Sugarcane Post-harvest Residue Retention and Certain Ripener Applications Reduce First and Second Ratoon Yields [abstract]. Journal of the American Society of Sugar Cane Technologists. 27:66.
Effect of Recurrent Selection for Sucrose on Growth and Sugar Accumulation in Sugarcane Internodes - (Abstract Only)
Lingle, S.E., Tew, T.L., Viator, R.P., Johnson, R.M. 2007. Effect of Recurrent Selection for Sucrose on Growth and Sugar Accumulation in Sugarcane Internodes [abstract]. In: Agronomy Society of America, Crop Science Society of America, Soil Science Society of America, 2007 International Annual Meetings Abstracts, November 4-8, 2007, New Orleans, Louisiana. CDROM.
Microbial degradation of post-harvest residues - (Peer Reviewed Journal)
Johnson, R.M., Richard Jr, E.P., Viator, R.P., Grisham, M.P., Boopathy, R. 2007. Microbial degradation of post-harvest residues. Proceedings of the International Society of Sugar Cane Technologists. 26:365-373.
Part II: Dealing with Plant Stress in Louisiana Sugarcane Production ()
Viator, R.P., Johnson, R.M., Richard Jr, E.P. 2007. Part II: Dealing with Plant Stress in Louisiana Sugarcane Production. Sugar Journal. 69(9):6.
Dealing with plant stress in Louisiana sugarcane production ()
Viator, R.P., Johnson, R.M., Richard Jr., E.P. 2007. Dealing with plant stress in Louisiana sugarcane production. Sugar Journal. 69:(8)6.
Relationship between sugarcane rust severity and soil properties in Louisiana - (Peer Reviewed Journal)
Johnson, R.M., Grisham, M.P., Richard Jr, E.P. 2007. Relationship between sugarcane rust severity and soil properties in Louisiana. Phytopathology. 97:748-755.
Utilization of Leaf Reflectance Measurements in Louisiana Sugarcane Disease, Variety, and Harvest Management Systems - (Proceedings)
Johnson, R.M., Grisham, M.P., Richard Jr, E.P., Zimba, P.V. 2006. Utilization of Leaf Reflectance Measurements in Louisiana Sugarcane Disease, Variety, and Harvest Management Systems. In: Proceedings of the 8th International Conference on Precision Agriculture, July 23-26, 2006, Minneapolis, Minnesota. 2006 CDROM.
ALLELOPATHIC, AUTOTOXIC, AND HORMETIC EFFECTS OF POST-HARVEST SUGARCANE RESIDUE - (Peer Reviewed Journal)
Viator, R.P., Johnson, R.M., Grimm, C.C., Richard Jr, E.P. 2006. Allelopathic, Autotoxic, and Hormetic Effects of Post-Harvest Sugarcane Residue. Agronomy Journal. 98:1526-1531.
HOW MUCH HAS RECURRENT SELECTION INCREASED SUCROSE YIELD IN SUGARCANE? - (Abstract Only)
Lingle, S.E., Tew, T.L., Viator, R.P., Johnson, R.M. 2006. How much has recurrent selection increased sucrose yield in sugarcane? [abstract]. Available: http://crops.confex.com/crops/2006am/techprogram/P23659.htm
EFFECT OF SOIL PROPERTIES ON SUGARCANE BROWN RUST INCIDENCE AND SEVERITY AND ASSOCIATED YIELD LOSS - (Abstract Only)
Grisham, M.P., Johnson, R.M., Richard Jr, E.P. 2006. Effect of soil properties on sugarcane brown rust incidence and severity and associated yield loss [abstract]. Phytopathology. 96(6):S43.
Site Specific Management of Cotton Production in the United States ()
Johnson, R.M., Bradow, J.M., Wrona, A.F. 2006. Site Specific Management of Cotton Production in the United States. In: A. Srinivasan (ed). Handbook of Precision Agriculture: Principles and Applications. Haworth Press, Inc., Binghamton, NY. p. 353-378.
REMOTE SENSING RESEARCH IN LOUISIANA SUGARCANE ()
Johnson, R.M., Richard Jr., E.P. 2006. Remote sensing research in Louisiana sugarcane. Sugar Bulletin. 84(7):15-16.
SUGARCANE POST-HARVEST RESIDUE MANAGEMENT IN TEMPERATE CLIMATES - (Abstract Only)
Viator, R.P., Johnson, R.M., Richard Jr, E.P. 2006. Sugarcane post-harvest residue management in temperate climates [abstract]. In: Proceedings of the International Society of Sugarcane Technologist Agronomy Workshop, May 23 - 26, 2006, Khon Kaen, Thailand, p. 8.
Management of post-harvest residue blanket ()
Viator, R.P., Johnson, R.M., Richard Jr, E.P. 2005. Management of post-harvest residue blanket. Sugar Bulletin. 83:10-11.
AUTOTOXIC AND ALLELOPATHIC ACTIVITY OF POST-HARVEST RESIDUE - (Abstract Only)
Viator, R.P., Johnson, R.M., Richard Jr, E.P. 2005. Autotoxic and Allelopathic Activity of Post-Harvest Residue [abstract]. Journal of the American Society of Sugar Cane Technologists. 25:121. Available: http://www.assct.org/journal/journal.htm
DISCRIMINATION OF SUGARCANE VARIETIES WITH HYPERSPECTRAL REFLECTANCE MEASUREMENTS AND PLANT PIGMENT ANALYSIS - (Abstract Only)
Johnson, R.M., Viator, R.P., Veremis, J.C., Richard Jr, E.P., Zimba, P.V. 2005. Discrimination of Sugarcane Varieties with Hyperspectral Reflectance Measurements and Plant Pigment Analysis [abstract]. Journal of the American Society of Sugar Cane Technologists. 25:111. Available: http://www.assct.org/journal/journal.htm
MULTIPLE CHALLENGES OF GREEN-CANE HARVESTING IN LOUISIANA ()
Viator, R.P., Johnson, R.M., Richard Jr, E.P. 2005. Multiple Challenges of Green-Cane Harvesting in Louisiana. Sugar Journal. 67(10):6-7.
PRECISION AGRICULTURE RESEARCH IN LOUISIANA SUGARCANE ()
Johnson, R.M., Richard Jr, E.P. 2005. Precision Agriculture Research in Louisiana Sugarcane. Sugar Journal. 67(11):6-7.
Sugarcane Yield, Sugarcane Quality, and Soil Variability in Louisiana - (Peer Reviewed Journal)
Johnson, R.M., Richard Jr, E.P. 2005. Sugarcane Yield, Sugarcane Quality, and Soil Variability in Louisiana. Agronomy Journal. 97:760-771.
Challenges of Post-Harvest Residue Management in the Louisiana Sugarcane Industry - (Peer Reviewed Journal)
Viator, R.P., Johnson, R.M., Richard Jr, E.P. 2005. Challenges of Post-Harvest Residue Retention Management in the Louisiana Sugarcane Industry. Proceedings of the International Society of Sugar Cane Technologists. 25:238-244.
Utilization of Yield Mapping and Variable-Rate Lime Application in Louisiana Sugarcane - (Peer Reviewed Journal)
Johnson, R.M., Richard Jr, E.P. 2005. Utilization of Yield Mapping and Variable-Rate Lime Application in Louisiana Sugarcane. Proc. International Society of Sugar Cane Technologists. 25:351-356.
A COMPARISON OF CONVENTIONAL AND VARIABLE RATE LIME APPLICATION METHODS IN SOUTH LOUISIANA SUGARCANE FIELDS - (Proceedings)
Johnson, R.M., Richard Jr, E.P. 2005. A comparison of conventional and variable rate lime application methods in South Louisiana sugarcane fields. In: Proceedings of the International Conference on Precision Agriculture. 7th International Conference on Precision Agriculture, July 25-28, 2004, Minneapolis, Minnesota. 2005 CDROM.
A SURVEY OF TEMPORAL AND SPATIAL VARIABILITY IN LOUISIANA SUGARCANE PRODUCTION SYSTEMS - (Abstract Only)
Johnson, R.M., Richard Jr, E.P. 2004. A survey of temporal and spatial variability in Louisiana sugarcane production systems [abstract]. Journal of the American Society of Sugar Cane Technologists. 24:113.
A Comparison of Conventional and Variable Rate Lime Application Methods in South Louisiana Sugarcane Fields - (Abstract Only)
Johnson, R.M., Richard Jr, E.P. 2005. A Comparison of Conventional and Variable Rate Lime Application Methods in South Louisiana Sugarcane Fields. CD-ROM. ASA-CSSA-ASSA, Madison, WI. Proc. of the 7th International Conference on Precision Agriculture. p. 173
MACHINERY ADVANCES FOR POST-HARVEST RESUDUE MANAGEMENT IN LOUISIANA - (Abstract Only)
Johnson, R.M., Richard Jr, E.P. 2003. Machinery advances for post-harvest residue management in Louisiana [abstract]. International Society of Sugar Cane Technologists'Agricultural Engineering Workshop - Abstracts of Commmunications. Available: http://issct.intnet.mu.
PRECISION AGRICULTURAL APPLICATIONS IN LOUISIANA SUGARCANE PRODUCTION SYSTEMS - (Abstract Only)
Johnson, R.M., Richard Jr, E.P. 2003. Precision agricultural applications in Louisiana sugarcane production systems [abstract]. Sugar Journal. 66(1):27-28.
COTTON FIBER MATURITY VARIATIONS ASSOCIATED WITH BOLL LOCATION - (Abstract Only)
Davidonis, G.H., Johnson, A.S., Johnson, R.M., Walker, T. 2003. Cotton fiber maturity variations associated with boll location. National Cotton Council Beltwide Cotton Conference.
Evaluation of crop and soil spatial variability in Louisiana sugarcane production systems - (Proceedings)
Johnson, R.M., Richard Jr, E.P. 2002. Evaluation of crop and soil spatial variability in Louisiana sugarcane production systems. In: Proceedings of the 6th International Conference on Precision Agriculture. ASA-CSSA-SSSA, Madison, Wisconsin. CDROM.
Variability in cotton fiber yield, fiber quality, and soil properties in a southeastern coastal plain - (Peer Reviewed Journal)
Johnson, R.M., Downer, R.G., Bradow, J.M., Bauer, P.J., Sadler, E.J. 2002. Variability in cotton fiber yield, fiber quality, and soil properties in a southeastern coastal plain. Agronomy Journal. 94:1305-1316.
GREEN CANE TRASH BLANKETS: INFLUENCE ON RATOON CROPS IN LOUISIANA - (Abstract Only)
Richard Jr, E.P., Johnson, R.M. 2003. Green cane trash blankets: Influence on ratoon crops in Louisiana [abstract]. Journal of the American Society of Sugar Cane Technologists. 23:93.
Evaluation of Crop and Soil Spatial Variability in Louisiana Sugarcane Production Systems - (Abstract Only)
Johnson, R.M., Richard Jr, E.P. 2002. Evaluation of Crop and Soil Spatial Variability in Louisiana Sugarcane Production Systems. 6th International Conference on Precision Agriculture. p. 146.
The Effect of Two Louisiana Soils on Cane Juice Quality - (Peer Reviewed Journal)
Godshall, M., Spear, S.K., Johnson, R.M. 2002. The Effect of Two Louisiana Soils on Cane Juice Quality. Journal of the American Society Of Sugar Cane Technologists. 22:101-111.
Surface charge properties and soil mobilities of mycoherbicidal spores - (Peer Reviewed Journal)
Daigle, D.J., Johnson, R.M., Sands, D., Connick Jr, W.J. 2001. Surface charge properties and soil mobilities of mycoherbicidal spores. Environmental Contamination and Toxicology Bulletin. 67:617-624.