USDA-ARS MWA
Agricultural Engineering Building
The Ohio State University/Ohio Agricultural Research and Development Center
1680 Madison Avenue
Wooster, Ohio 44691
Phone: (330) 263-3871
Fax: (330) 263-3670
Education:
Ph. D., Agricultural and Biological Engineering, The Ohio State University, 1996.
Research Interests:
Development of innovative concepts,
strategies and methodologies that improve efficiencies of highly
complex interactions in applications of pesticide sprays and drip
irrigation to produce healthy horticultural and field crops, enhance
the environment, and conserve water
Development of a comprehensive body of knowledge on how to improve
retention and coverage of spray droplets on target plants, soil and
other solid surfaces and reduce off-target loss
Development of new knowledge on how to improve water quality and
irrigation water use efficiency with optimal management of irrigation
and pesticide application strategies for horticultural nursery crops
Peer-Reviewed Publications Past
Ten Years:
Zhu, H., D.L. Reichard, R.D. Fox, R.D. Brazee, and H.E. Ozkan. 1994. Simulation of drift of discrete sizes of water droplets from field sprayers. Transactions of the ASAE, 37(5): 1401-1407.Brazee, R.D., M.J. Bukovac, J.A. Cooper, H. Zhu, D.L. Reichard and R.D. Fox. 1994. Surfactant diffusion and dynamic surface tension. Transactions of the ASAE, 37(1): 51-58.Zhu, H., D.L. Reichard, H.E. Ozkan, R.D. Brazee, and R.D. Fox. 1995. A mathematical model to predict nozzle wear rate of nozzles with elliptical orifices. Transactions of the ASAE, 38(5): 1297-1303.Zhu, H., D.L. Reichard, R.D. Fox, H.E. Ozkan, and R.D. Brazee. 1995. DRIFTSIM, a program to estimate drift distances of spray droplets. Applied Engineering in Agriculture, 11 (3): 365-369.Zhu, H., R.D. Brazee, D.L. Reichard, R.D. Fox, C.R. Krause, and A.C. Chapple. 1995. Fluid velocity and shear in elliptic orifice spray nozzles. Atomization and Sprays, 5(3): 343-356.Reichard, D.L., H. Zhu, R.A. Downer, R.D. Fox, R.D. Brazee, and H.E. Ozkan. 1996. A laboratory system to evaluate effects of shear on spray drift retardants. Transactions of the ASAE, 39(6): 1993-1999.Reichard, D.L., and H. Zhu. 1996. A system to measure viscosities of spray mixtures at high shear rates. Pesticide Science, 47:137-143.Zhu, H., D.L. Reichard, R.D. Fox, R.D. Brazee, and H.E. Ozkan. 1996. Collection efficiency of spray droplets on vertical targets. Transactions of the ASAE, 39(2): 415-422.Krause, C.R., R.D. Brazee, R.C. Derksen, H. Zhu, and R.D. Fox. 1997. Penetration of Cu(OH)2 spray into hemlock canopies. Phytopathology. 87 (6):S545-S555.Ozkan, H.E., A. Miralles, C. Sinfort, H. Zhu, D.L. Reichard, and R.D. Fox. 1997. Effect of shielding spray boom on spray deposition. Journal of Agricultural Engineering Research, 67: 311-322.
Zhu, H., R.W. Dexter, R.D. Fox, D.L. Reichard, R.D. Brazee, and H.E. Ozkan. 1997. Droplet size and viscosity effects in recirculated polymer spray solutions. Journal of Agricultural Engineering Research, 67: 35-45.Zhu, H., R.D. Fox, H.E. Ozkan, R.D. Brazee, and R.C. Derksen. 1998. A system to determine lag time and mixture uniformity for inline injection sprayers. Applied Engineering in Agriculture 14(2): 103-110.Zhu, H., H.E. Ozkan, R.D. Fox, R.D. Brazee, and R.C. Derksen. 1998. Mixture uniformity in supply line and spray patterns of a laboratory injection sprayer. Applied Engineering in Agriculture, 14(3): 223-230.Zhu, H., R.D. Fox, H.E. Ozkan, R.D. Brazee, and R.C. Derksen. 1998. Time delay for injection sprayers. Transactions of the ASAE, 41(3): 525-530.Zhu, H., D. L. Rowland, J.W. Dorner, R.C. Derksen, and R.B. Sorensen. 2002. Influence of Plant Structure, Orifice Size and Nozzle Inclination on Spray Penetration into Peanut Canopy. Transactions of the ASAE, 45(5):1295-1301.Zhu, H., R. B. Sorensen, C. L. Butts, M. C. Lamb, and P. D. Blankenship. 2002. A Pressure Regulating System for Variable Irrigation Flow Controls. Applied Engineering in Agriculture, 18(5): 533-540.Krause, C.R., D.L. Reichard, H. Zhu, R.D. Brazee, H.E. Ozkan, R.D. Fox. 2003. Evaluation of fan-pattern spray nozzle wear using scanning electron microscopy. Scanning, 25: 8-11.Zhu, H., C. L. Butts, M.C. Lamb, and P. D. Blankenship. 2004. An Implement to Install and Retrieve Surface Drip Irrigation Laterals. Applied Engineering in Agriculture, 20(1): 17-23.Zhu, H., M.C. Lamb, C. L. Butts, and P. D. Blankenship. 2004. Improving peanut yield and grade with surface drip irrigation in undulating fields. Transactions of the ASAE, Vol. 47(1): 99-106.Zhu, H., J.W. Dorner, D. L. Rowland, R.C. Derksen, and H. E. Ozkan. 2004. Spray penetration into peanut canopies with hydraulic nozzle tips. Biosystems Engineering, 87(3): 9-17.Fox, R.D., R.C. Derksen, H. Zhu, R.A. Downer, R.D. Brazee. 2004. Airborne spray collection efficiency of nylon screens. Applied Engineering in Agriculture, 20(2): 147-152.Krause, C.R., H. Zhu, R.C. Derksen, R.D. Brazee, R.D. Fox, L.E. Horst, and R.H. Zondag. 2004. Detection and Quantification of Nursery Spray Penetration and Off-Target Loss with Electron Beam and Conductivity Analysis. Transactions of the ASAE, Vol. 47(2): 375-384.Brazee, R.D., M.J. Bukovac, and H. Zhu. 2004. Diffusion model for plant cuticular penetration by a spray-applied weak organic acid bioregulator in presence or absence of ammonium nitrate. Transactions of the ASAE Vol. 47(3): 629-635.Zhu, H., C. R. Krause, R.C. Derksen, R.D. Brazee, R. Zondag and N. R. Fausey. 2004. Real-time measurement of drainage from pot-in-pot container nurseries. Transactions of the ASAE Vol. 47(6): 1973-1979.Zhu, H., H. Johnson, S. Plager and D. Pemberton. 2004. HVLP spray gun. U.S. patent No. 6,708,900.
