Projects

BIOLOGICAL, MICROCLIMATE, AND TRANSPORT PROCESSES AFFECTING PEST CONTROL APPLICATION TECHNOLOGY Appropriated (D)   Accession Number: 414932

EFFECTS OF ATMOSPHERIC HUMIDITY ON EVAPORATION RATES OF PHEROMONE Reimbursable (R)   Accession Number: 418320

INTELLIGENT SPRAY SYSTEMS FOR FLORAL AND ORNAMENTAL NURSERY CROPS Reimbursable (R)   Accession Number: 418595

INTELLIGENT SPRAY APPLICATIONS IN ORNAMENTAL NURSERIES IN OREGON AND WESTERN STATES Specific Cooperative Agreement (S)   Accession Number: 419099

ECONOMIC ANALYSIS FOR INTELLIGENT SPRAY APPLICATION IN FLORAL AND ORNAMENTAL NURSERY CROP PRODUCTION Specific Cooperative Agreement (S)   Accession Number: 419104

DEVELOP SOFTWARE FOR MODELS PREDICTING PEST ACTIVITY FOR INTELLIGENT SPRAYER DEVELOPMENT Specific Cooperative Agreement (S)   Accession Number: 419134

INTELLIGENT SPRAY APPLICATIONS IN ORNAMENTAL NURSERIES IN TENNESSEE AND SOUTH CENTRAL REGION STATES Specific Cooperative Agreement (S)   Accession Number: 420740

INTELLIGENT SPRAY APPLICATIONS IN ORNAMENTAL NURSERIES IN MIDWEST AND NORTHEAST REGION STATES Specific Cooperative Agreement (S)   Accession Number: 421471

DETERMINE FACTORS IN CONTROLLING PRECISION SPRAY APPLICATION TO NURSERIES AND FRUIT TREES Specific Cooperative Agreement (S)   Accession Number: 413224

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

Characterization of hydraulic nozzles for droplet size and spray coverage - (Peer Reviewed Journal)

Guler, H., Zhu, H., Ozkan, H.E., Ling, P. 2013. Characterization of hydraulic nozzles for droplet size and spray coverage. Atomization and Sprays. 22(8):627-645.

Tree growth with various fertilizer application methods in container production - (Peer Reviewed Journal) - (25-Nov-12)

Dispersion and evaporation of droplets amended with adjuvants on soybeans - (Peer Reviewed Journal)

Gimenes, M., Zhu, H., Raetano, C., Oliveira, R. 2013. Dispersion and evaporation of droplets amended with adjuvants on soybeans. Crop Protection Journal. 44:84-90.

Unimpeded air velocity profiles of air-assisted five-port sprayer - (Peer Reviewed Journal)

Gu, J., Zhu, H., Ding, W. 2012. Unimpeded air velocity profiles of air-assisted five-port sprayer. Transactions of the ASABE. 55(5):1659-1666.

Computational fluid dynamics applications to improve crop production systems - (Peer Reviewed Journal)

Bartzanas, T., Kacira, M., Zhu, H., Karmaker, S., Tamimi, E., Katsoulas, N., Lee, I.B., Kittas, C. 2013. Computational fluid dynamics applications to improve crop production systems. Computers and Electronics in Agriculture. 93:151-167.

Development of variable-rate sprayer with laser scanning sensor to synchronize spray outputs to tree structures - (Peer Reviewed Journal)

Chen, Y., Zhu, H., Ozkan, E. 2012. Development of variable-rate sprayer with laser scanning sensor to synchronize spray outputs to tree structures. Transactions of the ASABE. 55(3):773-781.

Two intelligent spraying systems developed for tree crop production - (Abstract Only)

Zhu, H., Ozkan, E., Derksen, R.C., Reding, M.E., Ranger, C.M., Canas, L., Krause, C.R., Locke, J.C., Ernst, S.C., Zondag, R.H., Fulcher, A., Rosetta, R., Jeon, H.Y., Chen, Y., Gu, J., Liu, H., Shen, Y., Rios, A.A. 2012. Two intelligent spraying systems developed for tree crop production. Meeting Abstract. 6th National Small Farm Conference,Memphis TN, September 18-20, 2012. p. 69-70.

Air velocity distributions from a variable-rate air-assisted sprayer for tree applications - (Proceedings)

Zhu, H., Gu, J., Chen, Y., Liu, H., Dong, X., Ding, W., Ozkan, E., Krause, C.R. 2012. Air velocity distributions from a variable-rate air-assisted sprayer for tree applications. CIGR-AgEng 2012: International Conference of Agricultural Engineering, July 8-12, 2012, Valencia, Spain. Paper No. C1547.

Development of Intelligent Spray Systems for Nursery Crop Production - (Abstract Only)

Zhu, H., Ozkan, E., Derksen, R.C., Ranger, C.M., Reding, M.E., Canas, L., Krause, C.R., Locke, J.C., Ernst, S.C., Zondag, R.H., Fulcher, A., Rosetta, R., Jeon, H.Y., Chen, Y., Gu, J., Hui, L., Shen, Y., Rios, A.A. 2012. Development of Intelligent Spray Systems for Nursery Crop Production. Meeting Abstract. 2012 ASHS Annual Conference, Miami Florida, July 31-August 3, 2012, Paper #8392.

A System to investigate 3-D droplet impact on leaf surfaces - (Proceedings)

Dong, X., Zhu, H., Yang, X., Jia, W. 2012. A System to investigate 3-D droplet impact on leaf surfaces. ASABE Annual International Meeting. Paper No. 121337317.

Air velocity distributions from air-assisted five-port sprayer - (Proceedings)

Gu, J., Zhu, H., Ding, W. 2012. Air velocity distributions from air-assisted five-port sprayer. ASABE Annual International Meeting. Paper No. 121337320.

An electronic flow control system for a variable-rate tree sprayer - (Proceedings)

Liu, H., Zhu, H., Chen, Y., Shen, Y., Ozkan, H.E. 2012. An electronic flow control system for a variable-rate tree sprayer. ASABE Annual International Meeting. Paper No. 121337321.

Evaporation rate of emulsion and oil-base emulsion pheromones - (Proceedings)

Xu, L., Ji, Y., Zhou, H., Zhu, H., Thistle, H.W., Krause, C.R. 2012. Evaporation rate of emulsion and oil-base emulsion pheromones. ASABE Annual International Meeting. Paper no. 121340956.

Half the Price for Insect and Disease Control, Is It Possible? - (Popular Publication)

Zhu, H., Zondag, R., Krause, C.R., Daley, J., Lyons, B., Merrick, J., Hammersmith, D., Lee, J., Holahan, M., Shelton, M., Geary, D., Demaline, T., Harding, A., Champion, B., Losely, K., Gilson, B., Hendricks, W. 2012. Half the Price for Insect and Disease Control, Is It Possible?. The Buckeye. 23(3):15-21.

Field evaluations of application techniques for fungicide spray deposition on wheat and artificial targets - (Peer Reviewed Journal)

Derksen, R.C., Paul, P., Ozkan, H.E., Zhu, H. 2012. Field evaluations of application techniques for fungicide spray deposition on wheat and artificial targets. Applied Engineering in Agriculture. 28(3): 325-331.

Influence of application equipment on deposition of spray droplets in wheat canopy - (Peer Reviewed Journal)

Ozkan, H.E., Paul, P.A., Derksen, R.C., Zhu, H. 2012. Influence of application equipment on deposition of spray droplets in wheat canopy. International Advances in Pesticide Applications --Aspects of Applied Biology. 114:317-324.

Droplet size distributions of adjuvant-amended sprays from an air-assisted five-port PWM nozzle - (Peer Reviewed Journal)

Gu, J., Zhu, H., Ding, W., Jeon, H. 2011. Droplet size distributions of adjuvant-amended sprays from an air-assisted five-port PWM nozzle. Atomization and Sprays. 21(3):263-274.

Development of variable-rate sprayer for nursery liner applications - (Peer Reviewed Journal)

Jeon, H., Zhu, H. 2012. Development of variable-rate sprayer for nursery liner applications. Transactions of the ASABE. 55(1):303-312.

Performance evaluation of a newly developed variable rate sprayer for nursery liner applications - (Peer Reviewed Journal)

Jeon, H., Zhu, H., Derksen, R.C., Ozkan, E., Krause, C.R. 2012. Performance evaluation of a newly developed variable rate sprayer for nursery liner applications. Transactions of the ASABE. 54(6):1997-2007.

Reduced use of pesticides for effective controls of arthropod pests and plant diseases - (Peer Reviewed Journal)

Zhu, H., Zondag, R.H., Krause, C.R., Merrick, J., Daley, J. 2011. Reduced use of pesticides for effective controls of arthropod pests and plant diseases. Journal of Environmental Horticulture. 29(3):143-151.

An experimental variable-rate sprayer for nursery and orchard applications - (Proceedings)

Chen, Y., Zhu, H., Ozkan, E., Derksen, R.C., Krause, C.R. 2011. An experimental variable-rate sprayer for nursery and orchard applications. ASABE Annual International Meeting. Paper No. 1110497. http://asae.frymulti.com/azdez.asp?search=1&JID=5&AID=37207&CID=LOI2011&T=1.

Development of LIDAR-guided sprayer to synchronize spray outputs with canopy structures - (Proceedings)

Chen, Y., Zhu, H., Ozkan, E. 2011. Development of LIDAR-guided sprayer to synchronize spray outputs with canopy structures. ASABE Annual International Meeting. Paper No. http://asae.frymulti.com/azdez.asp?search=1&JID=5&AID=37206&CID=loui2011&T=1.

Spray droplet sizes with additives discharged from an air-assisted variable-rate nozzle - (Proceedings)

Gu, J., Zhu, H., Ding, W., Jeon, H. 2011. Spray droplet sizes with additives discharged from an air-assisted variable-rate nozzle. ASABE Annual International Meeting. Paper No. 1110542. http://asae.frymulti.com/azdez.asp?search=1&JID=5&AID=37221&CID=loui2011&T=1.

A miniature ultrasonic actuator-control system for plant stem diameter micro-variation measurements - (Proceedings)

Gao, G., Zhu, H. 2011. A miniature ultrasonic actuator-control system for plant stem diameter micro-variation measurements. ASABE Annual International Meeting. Paper No. 1110592. http://asae.frymulti.com/azdez.asp?search=1&JID=5&AID=39065&CID=loui2011&T=2.

Verification of a variable rate sprayer for nursery liner applications - (Proceedings)

Jeon, H., Zhu, H., Derksen, R.C., Ozkan, E., Krause, C.R. 2011. Verification of a variable rate sprayer for nursery liner applications. ASABE Annual International Meeting, 8/7-10/11, Louisville, Kentucky. Paper No. 1110497.

Robust crop and weed segmentation under uncontrolled outdoor illumination - (Peer Reviewed Journal)

Jeon, H., Tian, L.F., Zhu, H. 2011. Robust crop and weed segmentation under uncontrolled outdoor illumination. Sensors. 11(6)6270-6283.

Optimal Spray Application Rates for Ornamental Nursery Liner Production - (Peer Reviewed Journal)

Zhu, H., Altland, J.E., Derksen, R.C., Krause, C.R. 2011. Optimal spray application rates for ornamental nursery liner production. HortTechnology. 21(3):367-375.

Distribution of Chemical and Microbial Pesticides Delivered Through Drip Irrigation Systems - (Book / Chapter)

Zhu, H., Wang, X., Reding, M.E., Locke, J.C. 2011. Distribution of Chemical and Microbial Pesticides Delivered Through Drip Irrigation Systems. In: Stoytcheva, M. editor. Pesticides - Formulations, Effects, Fate. Rijeka, Croatia: InTech. p 155-180.

Spray technologies for insect and disease control in ornamental nurseries - (Trade Journal)

Zhu, H., Zondag, R. 2011. Spray technologies for insect and disease control in ornamental nurseries. Nursery Management and Production. 58-61.

Capability of patch antennas in a portable harmonic radar system to track insects - (Peer Reviewed Journal)

Zhu, H., Psychoudakis, D., Brazee, R.D., Thistle, H.W., Volakis, J.L. 2011. Capability of patch antennas in a portable harmonic radar system to track insects. Transactions of the ASABE. 54(1):355-362.

A portable scanning system for evaluation of spray deposit distribution - (Peer Reviewed Journal)

Zhu, H., Salyani, M., Fox, R.D. 2011. A portable scanning system for evaluation of spray deposit distribution. Computers and Electronics in Agriculture. 76(1):38-43.

Droplet evaporation and spread on waxy and hairy leaves associated with type and concentration of adjuvants - (Peer Reviewed Journal)

Xu, L., Zhu, H., Ozkan, E., Bagley, B., Krause, C.R. 2011. Droplet evaporation and spread on waxy and hairy leaves associated with type and concentration of adjuvants. Pest Management Science. 67:842-851. DOI: 10.1002/ps.2122.

Development of a desiccated cadaver delivery system to apply entomopathogenic nematodes for control of soil pests - (Peer Reviewed Journal)

Zhu, H., Grewal, P.S., Reding, M.E. 2011. Development of a desiccated cadaver delivery system to apply entomopathogenic nematodes for control of soil pests. Applied Engineering in Agriculture. 27(3):317-324.

Development of Two Intelligent Spray Systems for Ornamental Nurseries - (Proceedings)

Zhu, H., Jeon, H., Chen, Y., Gu, J., Ozkan, H., Derksen, R.C., Reding, M.E., Ranger, C.M., Canas, L., Krause, C.R., Locke, J.C., Zondag, R.H., Ernst, S.C., Fulcher, A., Rosetta, R. 2012. Development of Two Intelligent Spray Systems for Ornamental Nurseries. International Plant Propagators Proceedings. 60:41-46.

Evaluation of Ultrasonic Sensors for the Variable Rate Tree Liner Sprayer Development - (Peer Reviewed Journal)

Jeon, H., Zhu, H., Derksen, R.C., Ozkan, H., Krause, C.R. 2011. Evaluation of ultrasonic sensors for the variable rate tree liner sprayer development. Computers and Electronics in Agriculture. 75(1):213-221. DOI:10.10161j.compag.2010.11.007.

Field Evaluations of Application Techniques and Equipment for Wheat Disease Management - (Proceedings)

Derksen, R.C., Paul, P., Ozkan, H., Zhu, H. 2010. Field Evaluations of Application Techniques and Equipment for Wheat Disease Management. Proceedings of the American Society of Agricultural and Biological Engineers International (ASABE), June 20-23, 2010, Pittsburgh, PA. Paper #1009142.

Greenhouse Evaluation of Air-Assist Delivery Parameters for Mature Poinsettias - (Peer Reviewed Journal)

Derksen, R.C., Ranger, C.M., Canas, L.A., Zhu, H., Krause, C.R. 2010. Greenhouse evaluation of air-assist delivery parameters for mature poinsettias. Applied Engineering in Agriculture. 26(6):947-953.

Efficacious Insect and Disease Control with Reduced Active Ingredient and Carrier Rate - (Abstract Only)

Zhu, H., Zondag, R.H., Krause, C.R. 2010. Efficacious insect and disease control with reduced active ingredient and carrier rate [abstract]. 12th International Congress of Pesticide Chemistry, July 4-8, 2010, Melbourne, Australia. p. 7.

Evaporation Time and Spread Area of Adjuvant-amended Droplets on Waxy and Hairy Leaves - (Proceedings)

Zhu, H., Yu, Y., Xu, L., Ozkan, H.E., Krause, C.R. 2010. Evaporation Time and Spread Area of Adjuvant-amended Droplets on Waxy and Hairy Leaves. Symposium Proceedings. www.ilass.org/recent/conferencepapers/ilass2010-140.pdf.

Evaporation Rate and Development of Wetted Area of Water Droplets with and without Surfactant at Different Locations on Waxy Leaf Surfaces - (Peer Reviewed Journal)

Xu, L., Zhu, H., Ozkan, E., Thisle, H. 2010. Evaporation Rate and Development of Wetted Area of Water Droplets with and without Surfactant at Different Locations on Waxy Leaf Surfaces. Biosystems Engineering. 106: 58-67.

Adjuvant Effects on Evaporation Rates and Wetted Area of Droplets on Waxy Leaves - (Peer Reviewed Journal)

Xu, L., Zhu, H., Ozkan, E., Bagley, B., Derksen, R.C., Krause, C.R. 2010. Adjuvant Effects on Evaporation Rates and Wetted Area of Droplets on Waxy Leaves. Transactions of the ASABE. 53(1): 13-20.

A Portable Pixel Recognition System for Evaluating the Distribution of Spray Deposits - (Proceedings)

Zhu, H., Salyani, M., Fox, R.D. A Portable Pixel Recognition System for Evaluating the Distribution of Spray Deposits. American Society of Agricultural and Biological Engineers International Meeting, June 20-23, 2010, Pittsburgh, Pennsylvania. ASABE Paper # 1008502.

Evaporation and Spread of Droplets with Various Types and Concentrations of Adjuvants on Waxy and Hairy Leaves - (Proceedings)

Xu, L., Zhu, H., Ozkan, H.E., Bagley, W.E. Evaporation and Spread of Droplets with Various Types and Concentrations of Adjuvants on Waxy and Hairy Leaves. American Society of Agricultural and Biological Engineers International Meeting, June 20-23, 2010, Pittsburgh, Pennsylvania. ASABE Paper # 1008586.

A Real-time Variable-Rate Sprayer for Nursery Liner Applications - (Proceedings)

Jeon, H.Y., Zhu, H., Derksen, R.C., Ozkan, H.E., Krause, C.R. 2010. A Real-time Variable-Rate Sprayer for Nursery Liner Applications. American Society of Agricultural and Biological Engineers International Meeting, June 20-23, 2010, Pittsburgh, Pennsylvania. ASABE Paper #1008801.

Laboratory and Field Tests of Ultrasonic Sensors for Precision Sprayers - (Proceedings)

Jeon, H.Y., Zhu, H., Derksen, R.C., Ozkan, H.E., Krause, C.R. 2010. Laboratory and Field Tests of Ultrasonic Sensors for Precision Sprayers. American Society of Agricultural and Biological Engineers International Meeting, June 20-23, 2010, Pittsburgh, Pennsylvania. ASABE Paper # 1008804.

Evaluation of Handgun and Broadcast Systems for Spray Deposition in Greenhouse Poinsettia Canopies - (Peer Reviewed Journal)

Derksen, R.C., Ranger, C.M., Canas, L.A., Locke, J.C., Zhu, H., Krause, C.R. 2010. Evaluation of Handgun and Broadcast Systems for Spray Deposition in Greenhouse Poinsettia Canopies. Transactions of the ASABE. 53(1): 5-12.

ARS Nursery and Floricultural Crop Research in Ohio - (Popular Publication)

Krause, C.R., Altland, J.E., Derksen, R.C., Frantz, J., Locke, J.C., Ranger, C.M., Reding, M.E., Zhu, H. 2009. ARS Nursery and Floricultural Crop Research in Ohio. The Buckeye. December 2009, pg 19-21.

Influence of Spray Formulation and Leaf Surface Structure on Droplet Evaporation and Wetted Area - (Peer Reviewed Journal)

Zhu, H., Yu, Y., Ozkan, H. 2010. Influence of Spray Formulation and Leaf Surface Structure on Droplet Evaporation and Wetted Area. Aspects of Applied Biology. 99:333-340.

Off-Target Loss in Ornamental Nurseries with Different Spray Techniques - (Proceedings)

Zhu, H., Derksen, R.C., Krause, C.R., Zondag, R.H. 2009. Off-Target Loss in Ornamental Nurseries with Different Spray Techniques. Communications in Agricultureand Biological Sciences, Ghent University, Ghent, Belgium. Vol 74(1): 25-36.

Evaporation and Coverage Area of Pesticide Droplets on Hairy and Waxy Leaves - (Peer Reviewed Journal)

Yu, Y., Zhu, H., Frantz, J., Reding, M.E., Chan, K.C. 2009. Evaporation and Coverage Area of Pesticide Droplets on Hairy and Waxy Leaves. Biosystems Engineering. 104:324-334.

The effects of spray application rate and droplet size on applications to control soybean rust - (Proceedings)

Bretthauer, S.M., Mueller, T.A., Bode, L.E., Derksen, R.C., Zhu, H. The effects of spray application rate and droplet size on applications to control soybean rust. Presented at the 2008 American Society of Agricultural and Biological Engineers Annual International Meeting. Paper Number 084219 Available: http://asae.frymulti.com/azdez.asp?search=1&JID=5&AID=25050&CID=prov2008&v=&i=&T=1

Delivery of Chemical and Microbial Pesticides from Drip Irrigation Emitters - (Peer Reviewed Journal)

Wang, X., Zhu, H., Reding, M.E., Locke, J.C., Leland, J.E., Derksen, R.C., Spongberg, A.L., Krause, C.R. 2009. Delivery of Chemical and Microbial Pesticides from Drip Irrigation Emitters. Applied Engineering in Agriculture. 25(6):883-893.

DepositScan, a Scanning Program to Measure Spray Deposition Distributions - (Peer Reviewed Journal)

Zhu, H. 2009. DepositScan, a Scanning Program to Measure Spray Deposition Distributions. Software and User Manual Public Release. Available: http://www.ars.usda.gov/mwa/wooster/atru/depositscan.

Hand-held Pressure Gauge Calibrator - (Popular Publication)

Zhu, H. 2009. Hand-held Pressure Gauge Calibrator. ARS Newsletter.Available: http://www.greenbeam.com/rs/nm_pdfs/16718_026.pdf

Surfactant Droplet Evaporation and Deposition Patterns on Waxy Leaf Surface - (Proceedings)

Xu, L., Zhu, H., Ozkan, E. 2009. Surfactant Droplet Evaporation and Deposition Patterns on Waxy Leaf Surface. ASABE Annual International Meeting. ASABE paper # 096671, pg 20.

Adjuvant Effects on Evaporation Time and Wetted Area of Droplets - (Proceedings)

Xu, L., Zhu, H., Ozkan, E., Bagley, B. 2009. Adjuvant Effects on Evaporation Time and Wetted Area of Droplets. ASABE Annual International Meeting, June 21-24, 2009, Reno, NV. Paper #96675.

Comparison of Handgun and Boom Spray Delivery Systems for Greenhouses - (Proceedings)

Derksen, R.C., Ranger, C.M., Canas, L.A., Locke, J.C., Zhu, H., Krause, C.R. 2009. Comparison of Handgun and Boom Spray Delivery Systems for Greenhouses. ASABE Annual International Meeting, June 21-24, 2009, Reno, Nevada. ASABE Paper #97453.

Effects of Sprayer Configuration of Efficacy for the Control of Scab on Crabapple Using Electron Beam Analysis - (Peer Reviewed Journal)

Krause, C.R., Derksen, R.C., Horst, L., Zhu, H., Zondag, R. 2009. Effects of Sprayer Configuration of Efficacy for the Control of Scab on Crabapple Using Electron Beam Analysis. Scanning. 31:24-27.

Evaporation and Deposition Coverage Area of Droplets Containing Insecticides and Spray Additives on Hydrophilic, Hydrophobic and Crabapple Leaf Surfaces - (Peer Reviewed Journal)

Yu, Y., Zhu, H., Derksen, R.C., Krause, C.R. 2009. Evaporation and Deposition Coverage Area of Droplets Containing Insecticides and Spray Additives on Hydrophilic, Hydrophobic and Crabapple Leaf Surfaces. Transactions of the ASABE. 52(1):39-49.

Development of a Canopy Opener to Improve Spray Deposition and Coverage inside Soybean Canopies -- Part 1: Mathematical Models to Assist Opener Development - (Peer Reviewed Journal)

Zhu, H., Brazee, R.D., Fox, R.D., Derksen, R.C., Ozkan, H.E. 2008. Development of a Canopy Opener to Improve Spray Deposition and Coverage Inside Soybean Canopies -- Part 1: Mathematical Models to Assist Opener Development. Transactions of the ASABE. 51(6):1905-1912.

Development of a Canopy Opener to improve Spray Deposition and Coverage Inside Soybean Canopies -- Part 2: Opener Design with Field Experiments - (Peer Reviewed Journal)

Zhu, H., Derksen, R.C., Ozkan, H.E., Reding, M.E., Krause, C.R. 2008. Development of a Canopy Opener to Improve Spray Deposition and Coverage Inside Soybean Canopies -- Part 2: Opener Design with Field Experiments. Transactions of the ASABE. 51(6):1913-1921.

A Portable Low-Power Harmonic Radar System and Conformal Tag for Insect Tracking - (Peer Reviewed Journal)

Psychoudakis, D., Moulder, W., Chen, C., Zhu, H., Volakis, J.L. 2008. A Portable Low-Power Harmonic Radar System and Conformal Tag for Insect Tracking. Institute of Electrical and Electronics Engineers Transactions on Antennas. 7:444-447.

Evaporation of Pesticide Droplets under Various Relative Humidity Conditions - (Peer Reviewed Journal)

Yu, Y., Zhu, H., Ozkan, H.E. 2008. Evaporation of Pesticide Droplets under Various Relative Humidity Conditions. Journal of ASTM International. 6(1):1-8.

Evaporation and deposition coverage of single droplets on various waxy surfaces - (Abstract Only)

Zhu, H., Yu, Y., Ozkan, H.E., Derksen, R.C., Krause, C.R. 2008. Evaporation and deposition coverage of single droplets on various waxy surfaces. International Crop Protection Compendium.73(4):711-718

Drip-Chemigation with Imidacloprid and Nematodes for Control of Scarab Larvae in Nursery Crops - (Peer Reviewed Journal)

Reding, M.E., Zhu, H., Derksen, R.C. 2008. Drip-Chemigation with Imidacloprid and Nematodes for Control of Scarab Larvae in Nursery Crops. Journal of Environmental Horticulture. 26:93-100.

Quantitative Assessment of Spray Deposition with Water-Sensitive Paper - (Proceedings)

Salyani, M., Zhu, H., Hoffmann, W.C., Sweeb, R.D., Pai, N. 2008. Quantitative Assessment of Spray Deposition with Water-Sensitive Paper. ASABE Annual International Meeting.ASABE Paper Number 083895

Determining the Influence of Spray Quality, Nozzle Type, Spray Volume, and Air-Assisted Application Strategies on Deposition of Pesticides in Soybean Canopy - (Peer Reviewed Journal)

Derksen, R.C., Zhu, H., Ozkan, E., Hannond, R., Dorrance, A. 2008. Determining the Influence of Spray Quality, Nozzle Type, Spray Volume, and Air-Assisted Application Strategies on Deposition of Pesticides in Soybean Canopy. Transactions of the ASABE. 51(5):1529-1537.

Comparison of drift potentials between air induction and conventional nozzles. - (Abstract Only)

Zhu, H. 2008. Comparison of drift potentials between air induction and conventional nozzles. Meeting Abstract.Available: http://www.tpsalliance.org/conference/papers/PapersB_Zhu_Drift%20Potentials.pdf

Uniformity of agro-chemicals and bio-compounds applied through drip irrigation system - (Proceedings)

Zhu, H., Wang, X., Reding, M.E., Locke, J.C., Leland, J.E., Spongberg, A.L., Derksen, R.C., Krause, C.R. 2008. Uniformity of agro-chemicals and bio-compounds applied through drip irrigation system. ASABE Annual International Meeting. Paper 084084.

Influence of spray additives on droplet evaporation and residual patterns on wax and wax-free surfaces - (Proceedings)

Zhu, H., Yu, Y., Ozkan, E.H., Derksen, R.C., Krause, C.R. 2008. Influence of spray additives on droplet evaporation and residual patterns on wax and wax-free surfaces. ASABE Annual International Meeting. Paper #083752.

A History of Air-Blast Sprayer Development and Future Prospects - (Peer Reviewed Journal)

Fox, R.D., Derksen, R.C., Zhu, H., Brazee, R.D., Svensson, S.A. 2008. A History of Air-Blast Sprayer Development and Future Prospects. Transactions of the ASABE. 51(2):405-410

Comparing Greenhouse Handgun Delivery to Poinsettias by Spray Volume and Quality - (Peer Reviewed Journal)

Derksen, R.C., Frantz, J., Ranger, C.M., Locke, J.C., Zhu, H., Krause, C.R. 2008. Comparing Greenhouse Handgun Delivery to Poinsettias by Spray Volume and Quality. Transactions of the ASABE. 51(1)27-33.

Fungicide Application Technology - (Proceedings)

Derksen, R.C., Ozkan, H.E., Zhu, H., Hammond, R., Dorrance, A. 2007. Fungicide Application Technology. National Soybean Rust Symposium.

Field Evaluation of Application Variables and Plant Spacing for Bell Pepper Pest Management - (Peer Reviewed Journal)

Derksen, R.C., Vitanza, S., Welty, C., Miller, S., Bennett, M., Zhu, H. 2007. Field Evaluation of Application Variables and Plant Spacing for Bell Pepper Pest Management. Transactions of the ASABE. 50(6):1945:1953.

Residual Patterns of Alkyl Polyoxyethylene Surfactant Droplets after Water Evaporation - (Peer Reviewed Journal)

Pierce, S.M., Chan, K.B., Zhu, H. 2008. Residual Patterns of Alkyl Polyoxyethylene Surfactant Droplets after Water Evaporation. Journal of Agricultural and Food Chemistry. 56(1):213-319.

Current projects of the Application Technology Research Unit - (Abstract Only)

Krause, C.R., Altland, J.E., Derksen, R.C., Frantz, J., Locke, J.C., Ranger, C.M., Reding, M.E., Zhu, H. 2007. Current projects of the Application Technology Research Unit. OFA Bulletin. No.904:24-25.

Influence of Spray Volume on Spray Deposition and Coverage Within Nursery Trees - (Peer Reviewed Journal)

Zhu, H., Zondag, R.H., Derksen, R.C., Reding, M.E., Krause, C.R. 2008. Influence of Spray Volume on Spray Deposition and Coverage Within Nursery Trees. Journal of Environmental Horticulture. 26(1):51-57.

Corn Nutritional Properties and Yields with Surface Drip Irrigation in Topographically Variable Fields - (Peer Reviewed Journal)

Zhu, H., Lan, Y., Lamb, M.C., Butts, C.L. 2007. Corn Nutritional Properties and Yields with Surface Drip Irrigation in Topographically Variable Fields. International Agricultural Engineering Journal. 9(9):1-10.

Coverage and Drift Produced by Air Induction and Conventional Hydraulic Nozzles Used for Orchard Applications - (Peer Reviewed Journal)

Derksen, R.C., Zhu, H., Fox, R.D., Brazee, R.D., Krause, C.R. 2007. Coverage and Drift Produced by Air Induction and Conventional Hydraulic Nozzles Used for Orchard Applications. Transactions of the ASABE. 50(5):1493-1501.

Comparison of irrigation, leachate and tree growth between soilless and coal ash based media - (Proceedings)

Zhu, H., Zondag, R., Frantz, J., Chen, L., Krause, C.R. 2007. Comparison of irrigation, leachate and tree growth between soilless and coal ash based media. International Symposium on Growing Media and Hydroponics.Available: http://www.actahort.org/books/819/819_54.htm. ISHS Acta Horticulturae 819, International Symposium on Growing Media 2007. Nottingham, United Kingdom.

Investigation of Drainage and Plant Growth from Nursery Container Substrate - (Peer Reviewed Journal)

Zhu, H., Frantz, J., Derksen, R.C., Krause, C.R. 2007. Investigation of Drainage and Plant Growth from Nursery Container Substrate. Applied Engineering in Agriculture. 23(3):289-297.

Half Rate Pesticide Trial in Nursery Applications - (Abstract Only)

Zhu, H. 2007. Half Rate Pesticide Trial in Nursery Applications [abstract]. Internet Web Page.

DRIFTSIM, A Computer Program for Estimating Spray Drift Distances - (Abstract Only)

Zhu, H. 2007. Driftsim, a computer program for estimating spray drift distances [abstract]. Internet Web Page.

The Effect of Spray Volume and Quality on Handgun Delivery of Pesticides to Greenhouse Plants - (Proceedings)

Derksen, R.C., Frantz, J., Ranger, C.M., Locke, J.C., Zhu, H., Krause, C.R. 2007. The Effect of Spray Volume and Quality on Handgun Delivery of Pesticides to Greenhouse Plants. Proceedings of the American Society of Agricultural and Biological Engineers International (ASABE). Paper No. 071149.

Spray Characteristics and Drift Reduction Potential with Air Induction and Conventional Flan Fan Nozzles - (Peer Reviewed Journal)

Guler, H., Zhu, H., Ozkan, H.E., Derksen, R.C., Yu, Y., Krause, C.R. 2007. Spray Characteristics and Drift Reduction Potential with Air Induction and Conventional Flan Fan Nozzles. Transactions of the ASABE. 50(3):745-754.

Wide-swath Spray Application in Ornamental Nurseries with Cannon Air Jet Sprayer - (Proceedings)

Zhu, H., Yu, Y., Derksen, R.C., Ozkan, H.E., Krause, C.R. 2007. Wide-swath Spray Application in Ornamental Nurseries with Cannon Air Jet Sprayer. Proceedings of the American Society of Agricultural and Biological Engineers International (ASABE), June 17-21, 2007, Minneapolis, MN. Paper No. 071069.

Nozzle and Equipment Considerations for Improved Coverage in the Soybean Canopy: A Summary of the Work Done in Ohio - (Proceedings)

Derksen, R.C., Ozkan, H.E., Zhu, H., Dorrance, A. 2006. Nozzle and Equipment Considerations for Improved Coverage in the Soybean Canopy: A Summary of the Work Done in Ohio. National Soybean Rust Symposium.

Development of Harmonic Radar Systems for Tracking Emerald Ash Borer - (Abstract Only)

Zhu, H. 2007. Development of Harmonic Radar Systems for Tracking Emerald Ash Borer [abstract]. USDA Interagency Research Forum on Gypsy Moth and Other Invasive Species.

A Specially Designed Air-Assist Sprayer to Improve Spray Penetration and Air Jet Velocity Distribution inside Dense Nursery Crops - (Peer Reviewed Journal)

Zhu, H., Brazee, R.D., Derksen, R.C., Fox, R.D., Krause, C.R., Ozkan, H.E., Losely, K.E. 2006. A Specially Designed Air-Assist Sprayer to Improve Spray Penetration and Air Jet Velocity Distribution inside Dense Nursery Crops. Transactions of the ASAE. 49(5):1285-1294.

Achieve PIP Precision - (Popular Publication)

Zhu, H., Zondag, R.H., Krause, C.R., Demaline, T. 2006. Achieve PIP Precision. Nursery Management and Production. p. 59-64.

Dynamic Air Velocity and Spray Deposition inside Dense Nursery Crops with a Multi-Jet Air Assist Sprayer - (Proceedings)

Zhu, H., Derksen, R.C., Krause, C.R., Ozkan, H.E., Brazee, R.D., Fox, R.D., Losely, K. 2006. Dynamic Air Velocity and Spray Deposition inside Dense Nursery Crops with a Multi-Jet Air Assist Sprayer [abstract]. ASABE Annual International Meeting. Paper No. 061125.

Development of a Canopy Opener to Increase Spray Deposition and Coverage inside Soybean Canopies - (Proceedings)

Zhu, H., Derksen, R.C., Ozkan, H.E., Guler, H., Brazee, R.D., Reding, M.E., Krause, C.R. 2006. Development of a Canopy Opener to Increase Spray Deposition and Coverage inside Soybean Canopies [abstract]. ASABE Annual International Meeting. Paper No. 061164.

SPRAY CHARACTERISTICS AND WIND TUNNEL EVALUATION OF DRIFT REDUCTION POTENTIAL WITH AIR INDUCTION AND CONVENTIONAL FLAT FAN NOZZLE - (Proceedings)

Guler, H., Zhu, H., Ozkan, H.E., Derksen, R.C., Yu, Y., Krause, C.R. 2006. Spray characteristics and wind tunnel evaluation of drift reduction potential with air induction and conventional flat fan nozzle [Abstract]. American Society Agricultural Biological Engineers, Annual International Meeting. Paper No. 06111.

Is Your Air Blast Sprayer Doing What You Want? - (Abstract Only)

Zhu, H., Zondag, R.H. 2006. Is Your Air Blast Sprayer Doing What You Want? The Buckeye. p. 1-7.

RECENT ADVANCES IN PESTICIDE SPRAY APPLICATION TECHNOLOGY - (Abstract Only)

Zhu, H. 2006. Recent advances in pesticide spray application technology. Agricultural Pesticides Conference Proceedings.

Foliar Deposition and Off-Target Loss with Different Spray Techniques in Nursery Application - (Peer Reviewed Journal)

Zhu, H., Derksen, R.C., Guler, H., Krause, C.R., Ozkan, H.E. 2006. Foliar Deposition and Off-Target Loss with Different Spray Techniques in Nursery Application. Transactions of the ASAE. 49(2):325-334.

Wind Tunnel Evaluation of Drift Reduction Potential and Spray Characteristics with Drift Retardants at High Operating Pressure - (Peer Reviewed Journal)

Guler, H., Zhu, H., Ozkan, H.E., Derksen, R.C., Krause, C.R. 2006. Wind Tunnel Evaluation of Drift Reduction Potential and Spray Characteristics with Drift Retardants at High Operating Pressure. American Society for Testing and Materials. 3(5):1-9.

NEW, INNOVATIVE RESEARCH IN PESTICIDE APPLICATION TECHNOLOGIES - (Proceedings)

Krause, C.R., Zhu, H., Derksen, R.C., Reding, M.E., Zondag, R.A., Frantz, J., Locke, J.C. 2006. New, innovative research in pesticide application technologies. International Crop Protection Compendium.

EVALUATION OF SPRAYING EQUIPMENT FOR EFFECTIVE DEPOSITION AND COVERAGE TO CONTROL ASIAN SOYBEAN RUST - (Abstract Only)

Ozkan, H.E., Zhu, H., Derksen, R.C. 2006. Evaluation of spraying equipment for effective deposition and coverage to control asian soybean rust. ASABE Annual International Meeting, July 9-12, 2006, Portland, OR.

Investigation of Nursery Canopy and Ground Deposition with Three Spray Techniques - (Peer Reviewed Journal)

Zhu, H., Derksen, R.C., Guler, H., Krause, C.R., Ozkan, H.E. 2006. Investigation of Nursery Canopy and Ground Deposition with Three Spray Techniques. International Advances in Pesticide Application--Aspects of Applied Biology. 77:489-496.

Evaluation of Various Spraying Equipment for Effective Application of Fungicides to Control Asian Soybean Rust - (Peer Reviewed Journal)

Ozkan, H.E., Zhu, H., Derksen, R.C., Guler, H., Krause, C.R. 2006. Evaluation of Various Spraying Equipment for Effective Application of Fungicides to Control Asian Soybean Rust. International Advances in Pesticides Application--Aspects of Applied Biology. 77:423-431.

DRIP IRRIGATION AS A DELIVERY SYSTEM FOR IMIDACLOPRID AND NEMATODES FOR CONTROL OF SCARAB GRUBS IN NURSERY CROPS - (Abstract Only)

Reding, M.E., Zhu, H., Derksen, R.C. 2005. Drip irrigation as a delivery system for imidacloprid and nematodes for control of scarab grubs in nursery crops [Abstract]. Presented at Natinal Meeting of the Entomological Society of America, December 14-18, 2005, Ft. Lauderdale, FL.

Effects of Air-Assisted and Conventional Spray Delivery Systems on Management of Soybean Diseases - (Peer Reviewed Journal)

Derksen, R.C., Zhu, H., Ozkan, H.E., Dorrance, A.E., Krause, C.R. 2006. Effects of Air-Assisted and Conventional Spray Delivery Systems on Management of Soybean Diseases. International Advances in Pesticide Application--Aspects of Applied Biology. 77:415-422.

WIND TUNNEL EVALUATION OF DRIFT REDUCTION POTENTIAL WITH AIR INDUCTION NOZZLES, LOW PRESSURE CONVENTIONAL NOZZLES AND DRIFT RETARDANTS - (Abstract Only)

Guler, H., Zhu, H., Ozkan, H.E., Derksen, R.C., Krause, C.R. 2006. Wind tunnel evaluation of drift reduction potential with air induction nozzles, low pressure conventional nozzles and drift retardants [Abstract]. In: 26th Symposium on Pesticide Formulation and Delivery Systems: Reassessing Pesticide Technologies, October 18-20, 2005, Dallas, Texas. p. 30.

DRIFTSIM - Predicting Drift Distances of Spray Droplets - (Peer Reviewed Journal)

Zhu, H., Fox, R.D., Ozkan, E. 2005. Driftsim - Predicting Drift Distances of Spray Droplets. Software and User Manual Public Release.

MONITORING WATER USE, NUTRIENT MANAGEMENT, DRAINAGE AND LEACHATE IN POT-IN-POT NURSERY CONTAINER PRODUCTION - (Proceedings)

Zhu, H., Krause, C.R., Zondag, R. 2005. Monitoring water use, nutrient management, drainage and leachate in pot-in-pot nursery container production. In: 9th International Congress on Mechanization and Energy in Agriculture and 27th International Conference of CIGR, September 27-29, 2005, Izmir-Turkey. p. 264-269.

COMPARISON OF AIRBORNE AND GROUND SPRAY DEPOSITS WITH HOLLOW CONE NOZZLE, LOW DRIFT NOZZLE AND DRIFT RETARDANT - (Proceedings)

Zhu, H., Guler, H., Derksen, R.C., Ozkan, H.E. 2005. Comparison of airborne and ground spray deposits with hollow cone nozzle, low drift nozzle and drift retardant. In: Proceedings of the 9th International Congress on Mechanization and Energy in Agriculture and 27th International Conference of CIGR, September 27-29, 2005, Izmir-Turkdy. p. 73-78.

Spray Deposition and Off-Target Loss in Nursery Tree Crops with Conventional Nozzle, Air Induction Nozzle and Drift Retardant - (Proceedings)

Zhu, H., Derksen, R.C., Krause, C.R., Brazee, R.D., Zondag, R., Fox, R.D., Reding, M.E., Ozkan, E.H. 2005. Spray Deposition and Off-Target Loss in Nursery Tree Crops with Conventional Nozzle, Air Induction Nozzle and Drift Retardant. ASAE Annual International Meeting. Paper No. 051007.

A Windows Version of DRIFTSIM for Estimating Drift Distances of Droplets - (Proceedings)

Zhu, H., Fox, R.D., Ozkan, H.E. 2005. A Windows Version of DRIFTSIM for Estimating Drift Distances of Droplets. ASAE Annual International Meeting. Paper No. 051145.

A Transponder for Harmonic Radar Tracking of the Black Vine Weevil in Behavioral Research - (Peer Reviewed Journal)

Brazee, R.D., Miller, E.S., Reding, M.E., Klein, M.G., Zhu, H., Nudd, B.E. 2005. A Transponder for Harmonic Radar Tracking of the Black Vine Weevil in Behavioral Research. Transactions of the ASAE. 48(2):831-838.

IDENTIFYING COMMON REFLECTANCE PROPERTIES IN DIVERSE ORNAMENTAL SPECIES TO NON-DESTRUCTIVELY DETERMINE NITROGEN STATUES - (Abstract Only)

Frantz, J., Pitchay, D., Ritchie, G., Zhu, H. 2005. Identifying common reflectance properties in diverse ornamental species to non-destructively determine nitrogen statues. Hortscience. 40(4):1060.

CONSIDERATIONS FOR THE DESIGN AND INSTALLATION OF SDI SYSTEMS IN HUMID AREAS - (Proceedings)

Grabow, G.L., Harrison, K., Dukes, M.D., Vories, E.D., Smith, W.B., Zhu, H., Khalilian, A. 2005. Considerations for the design and installation of SDI systems in humid areas. In: Proceedings of the World Water and Environmental Resources Congress. American Society of Civil Engineers, Reston, VA. Available: http://ascelibrary.aip.org/getpdf/servlet/GetPDFServlet?filetype=pdf&id=ASCECP000173040792000518000001&idtype=cvips

A New System to Monitor Water and Nutrient use Efficiency in Pot-in-Pot Nursery Production System - (Peer Reviewed Journal)

Zhu, H., Krause, C.R., Zondag, R.H., Brazee, R.D., Derksen, R.C., Reding, M.E., Fausey, N.R. 2005. A New System to Monitor Water and Nutrient use Efficiency in Pot-in-Pot Nursery Production System. Journal of Environmental Horticulture. 23(1):47-53.

Effect of Solution pH Conditions on Fluorescence of Spray Deposition Tracers - (Peer Reviewed Journal)

Zhu, H., Derksen, R.C., Krause, C.R., Fox, R.D., Brazee, R.D., Ozkan, H.E. 2005. Effect of Solution pH Conditions on Fluorescence of Spray Deposition Tracers. Applied Engineering in Agriculture. 21(3):325-329.

PRELIMINARY INVESTIGATION OF WATER AND NUTRIENT USE, SUBSTRATE TEMPERATURE AND MOISTURE IN POT-IN-POT PRODUCTION - (Research Notes)

Zhu, H., Zondag, R.H., Krause, C.R., Derksen, R.C., Demaline, T. 2005. Preliminary investigation of water and nutrient use, substrate temperature and moisture in pot-in-pot production. Extension Circular 195. pp. 135-144.

APPLICATION OF IMIDACLOPRID THROUGH DRIP IRRIGATION FOR CONTROL OF WHITE GRUBS IN FIELD-GROWN NURSERY CROPS - (Research Notes)

Reding, M.E., Zhu, H., Zondag, R. 2005. Application of imidacloprid through drip irrigation for control of white grubs in field-grown nursery crops. Extension Circular 195. p. 131-134.

IMPACT OF SPRINKLER IRRIGATION AMOUNT AND ROTATION ON PEANUT YIELD - (Peer Reviewed Journal)

Lamb, M.C., Rowland, D., Sorensen, R.B., Zhu, H., Blankenship, P.D., Butts, C.L. 2005. Impact of sprinkler irrigation amount and rotation on peanut yield. Peanut Science. 31:108-113

Fluorescent Intensity of Dye Solutions under Different pH Conditions - (Peer Reviewed Journal)

Zhu, H., Derksen, R.C., Krause, C.R., Fox, R.D., Brazee, R.D., Ozkan, E.H. 2005. Fluorescent Intensity of Dye Solutions under Different pH Conditions. American Society for Testing and Materials. 2(6):1-7.

Real-Time Measurement of Drainage From Pot-in-Pot Container Nurseries - (Peer Reviewed Journal)

Zhu, H., Krause, C.R., Derksen, R.C., Brazee, R.D., Zondag, R., Fausey, N.R. 2004. Real-Time Measurement of Drainage From Pot-in-Pot Container Nurseries. Transactions of the ASAE. 47(6):1973-1979.

RESEARCH TO REDUCE POTENTIAL DAMAGE FROM SPRAY DRIFT LOSS BY THE USDA-ARS APPLICATION TECHNOLOGY RESEARCH UNIT - (Proceedings)

Derksen, R.C., Zhu, H., Krause, C.R., Ozkan, H.E., Fox, R.D., Brazee, R.D. 2004. Research to reduce potential damage from spray drift loss by the USDA-ARS Application Technology Research Unit. Proceedings of International Drift on Pesticide Application for Drift Management Meeting, October 27-29, 2005. Waikoloa, Hawaii. p. 414-421.

DRIFTSIM -- A USER-FRIENDLY COMPUTER PROGRAM TO PREDICT DRIFT DISTANCES OF DROPLETS - (Proceedings)

Zhu, H., Fox, R.D., Ozkan, H.E., Derksen, R.C., Krause, C.R. 2004. An application computer program (DRIFTSIM) to predict drift distances of water droplets from field sprayers. In: Ramsay, C., Hewitt, A. , Thistle, H., Hoffman, C., Wold, R., Wolf, T. (editors) Proceedings of International Conference on Pesticide Application for Drift Management. October 27-29, 2004. Waikoloa, Hawaii. p. 317-323.

NEW TECHNIQUES FOR MONITORING DRIP IRRIGATION WATER USE EFFICIENCY, DRAINAGE, AND LEACHATE IN CONTAINERS - (Proceedings)

Zhu, H., Krause, C.R., Derksen, R.C., Zondag, R.H., Brazee, R.D., Fausey, N.R. 2004. New techniques for monitoring drip irrigation water use efficiency, drainage, and leachate in containers. ASAE Annual International Meeting. Paper No. 042247.

SPRAY DEPOSITION IN TAXUS AND AIR VELOCITY PROFILE FOR A FIVE-PORT, AIR-ASSIST SPRAYER - (Proceedings)

Zhu, H., Derksen, R.C., Fox, R.D., Brazee, R.D., Fox, R.D., Ozkan, H.E. 2004. Spray deposition in taxus and air velocity profile for a five-port, air-assist sprayer. ASAE Annual International Meeting. Paper No. 041032.

DEVELOPMENT OF HARMONIC RADAR TRANSPONDERS TO TRACK BLACK VINE WEEVIL BEHAVIOR IN NURSERIES - (Proceedings)

Brazee, R.D., Zhu, H., Miller, E.S., Reding, M.E., Klein, M.G., Nudd, B.E. 2004. Development of harmonic radar transponders to track black vine weevil behavior in nurseries. ASAE Annual International Meeting. Paper No. 041033.

Diffusion Model for Plant Cuticular Penetration by Spray-Applied Weak Organic Acid Bioregulator in Presence or Absence of Ammonium Nitrate - (Peer Reviewed Journal)

Brazee, R.D., Bukovac, M.J., Zhu, H. 2004. Diffusion Model for Plant Cuticular Penetration by Spray-Applied Weak Organic Acid Bioregulator in Presence or Absence of Ammonium Nitrate. Transactions of the ASAE. 47(3):629-635.

Detection and Quantification of Nursery Spray Penetration and Off-Target Loss with Electron Beam and Conductivity Analysis - (Peer Reviewed Journal)

Krause, C.R., Zhu, H., Derksen, R.C., Brazee, R.D., Fox, R.D., Horst, L., Zondag, R.H. 2004. Detection and Quantification of Nursery Spray Penetration and Off-Target Loss with Electron Beam and Conductivity Analysis. Transactions of the ASAE. 47(2):375-384.

SPRAY PENETRATION INTO PEANUT CANOPIES WITH HYDRAULIC NOZZLE TIPS - (Peer Reviewed Journal)

Zhu, H., Dorner, J.W., Rowland, D., Derksen, R.C., Ozkan, H.E. 2004. Spray penetration into peanut canopies with hydraulic nozzle tips. Biosystems Engineering. 87:275-283.

DETERMINATION OF WATER QUALITY, WATER USE EFFICIENCY AND WATER RUNOFF IN POT-IN-POT NURSERIES - (Research Notes)

Krause, C.R., Zhu, H., Zondag, R., Shipitalo, M.J., Williams, K.A., Brazee, R.D., Derksen, R.C., Reding, M.E., Demaline, T. 2004. Determination of water quality, water use efficiency and water runoff in pot-in-pot nurseries. Extension Publications. 193:78-83.

THE USDA, AGRICULTURAL RESEARCH SERVICE RESEARCH WEATHER STATION NETWORK IN NORTHERN OHIO NURSERIES - (Research Notes)

Brazee, R.D., Williams, K.A., Lohnes, D., Derksen, R.C., Zhu, H., Zondag, R., Krause, C.R. 2004. The USDA, Agricultural Research Service research weather station network in northern Ohio nurseries. Extension Publications. 193:190-193.

IMPROVING PEANUT YIELD AND GRADE WITH SURFACE DRIP IRRIGATION IN UNDULATING TOPOGRAPHIC FIELDS - (Peer Reviewed Journal)

Zhu, H., Lamb, M.C., Butts, C.L., Blankenship, P.D. 2004. Improving peanut yield and grade with surface drip irrigation in undulating topographic fields. Transactions of the ASAE. Paper 032098.

AN IMPLEMENT TO INSTALL AND RETRIEVE SURFACE DRIP IRRIGATION LATERALS - (Peer Reviewed Journal)

Heping, Z, Butts, C.L., Lamb, M.C., Blankenship, P.D.. 2004.An implement to install and retrieve surface drip irrigation laterals. Applied Engineering in Agriculture. 20(1):17-23.

PEANUT PRODUCTION IN TOPOGRAPHIC FIELDS WITH SURFACE DRIP IRRIGATION - (Abstract Only)

Zhu, H., Lamb, M.C., Butts, C.L., Blankenship, P.D. 2003. Peanut production in topographic fields with surface drip irrigation. American Peanut Research and Education Society Abstracts.

RESEARCH AT THE NPRL SHELLMAN IRRIGATION RESEARCH FARM - (Abstract Only)

Lamb, M.C., Rowland, D., Sorensen, R.B., Zhu, H., Blankenship, P.D., Butts, C.L. 2004. Research at the nprl shellman irrigation research farm. American Peanut Research and Education Society Abstracts. Vol. 35. www.apres.okstate.edu.

RESEARCH AT THE NPRL SHELLMAN IRRIGATION RESEARCH FARM - (Abstract Only)

LAMB, M.C., ROWLAND, D., SORENSEN, R.B., ZHU, H., BLANKENSHIP, P.D., BUTTS, C.L. RESEARCH AT THE NPRL SHELLMAN IRRIGATION RESEARCH FARM. AMERICAN PEANUT RESEARCH AND EDUCATION SOCIETY ABSTRACTS. 2003. Vol. 35. www.apres.okstate.edu

INFLUENCE OF PLANT STRUCTURE, ORIFICE SIZE AND NOZZLE INCLINATION ON SPRAY PENETRATION INTO PEANUT CANOPY - (Peer Reviewed Journal) - (19-Aug-02)

A VARIABLE FLOW CONTROL SYSTEM FOR SUBSURFACE DRIP IRRIGATION* - (Proceedings)

Zhu, H., D. L. Rowland, J. W. Dorner, R. C. Derksen, R. B. Sorensen. Influence of plant structure, orifice size and nozzle inclination on spray penetration into peanut canopy. Applied Eng. in Agric. 2002. v.45(5). p.5-1301.

A PRESSURE REGULATING SYSTEM FOR VARIABLE IRRIGATION FLOW CONTROLS - (Peer Reviewed Journal)

Sorensen, R. B., F. S. Wright. Soil temperature in the peanut pod zone with subsurface drip irrigation. Peanut Sci. 2002. v.(2)29: p.115-122.

IMPROVING SPRAY PENETRATION INTO PEANUT CANOPIES AT DIFFERENT GROWING STAGES WITH PROPER NOZZLE SELECTIONS - (Proceedings)

Zhu, H., Dorner, J.W., Rowland, D. 2002. Improving spray penetration into peanut canopies at different growing stages with proper nozzle selections. Journal of the Agricultural Association of China.

IMPROVING PEANUT PRODUCTION WITH SURFACE DRIP IRRIGATION - (Abstract Only)

-

INFLUENCE OF PLANT STRUCTURE, ORIFICE SIZE AND NOZZLE INCLINATION ON SPRAY PENETRATION INTO PEANUT CANOPY - (Peer Reviewed Journal)

Zhu, H., Rowland, D., Dorner, J.W., Derksen, R.C., Sorensen, R.B. 2002. INFLUENCE OF PLANT STRUCTURE, ORIFICE SIZE AND NOZZLE INCLINATION ON SPRAY PENETRATION INTO PEANUT CANOPY. Transactions of the ASABE. v45(5): p1295-1301.