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James Owen Jr (Jim)
Application Technology Research
Research Horticulturist

Phone: (757) 374-8153
Fax:

1680 MADISON AVE
AGRICULTURAL ENGR. BLDG.
WOOSTER, OH 44691
Projects
Sustainable Production and Pest Management Practices for Nursery, Greenhouse, and Protected Culture Crops
In-House Appropriated (D)
  Accession Number: 438340
Characterization of Water Quality in Greenhouse and Nursery Waters in Erie Lake Lowland and Drift Plain of the USA
Non-Assistance Cooperative Agreement (S)
  Accession Number: 438805
Characterization of Water Quality and Quantity in Greenhouse and Nursery Waters in the Piedmont Ecoregion of the USA
Non-Assistance Cooperative Agreement (S)
  Accession Number: 438826
Improving Nursery Irrigation through Coupled Advances in Substrate Composition and Cyclic Irrigation Scheduling
Non-Assistance Cooperative Agreement (S)
  Accession Number: 440855
Improving Nursery Profitability by Engineering Superior Substrates
Non-Assistance Cooperative Agreement (S)
  Accession Number: 436573

Publications (Clicking on the reprint icon Reprint Icon will take you to the publication reprint.)
The basics of irrigation reservoirs for agriculture ()
Sahoo, D., Yazdi, M.N., Owen Jr, J.S., White, S.A. 2021. The basics of irrigation reservoirs for agriculture. Clemson Cooperative Extension, Land-Grant Press by Clemson Extension.October. LGP 1121. https://lgpress.clemson.edu/publication/the-basics-of-irrigation-reservoirs-for-agriculture/.
Specialty crop retention reservoir performance and design considertions to secure quality water and mitigate non-point source runoff Reprint Icon - (Peer Reviewed Journal)
Yazdi, M.N., Owen Jr, J.S., Lyon, S.W., White, S.A. 2021. Specialty crop retention reservoir performance and design considertions to secure quality water and mitigate non-point source runoff. Journal of Cleaner Production. 321: Article 128925. https://doi.org/10.1016/j.jclepro.2021.128925.
Reducing pesticide transport in surface and subsurface irrigation return flow in specialty crop production Reprint Icon - (Peer Reviewed Journal)
Abdi, D., Owen Jr, J.S., Wilson, P., Hinz, F., Cregg, B., Fernandez, R. 2021. Reducing pesticide transport in surface and subsurface irrigation return flow in specialty crop production. Agricultural Water Management. 256. Paper No: 107124. https://doi.org/10.1016/j.agwat.2021.107124.
Substrate stratification: layering unique substrates within a container increases resource efficiency without impacting growth of shrub rose Reprint Icon - (Peer Reviewed Journal)
Fields, J., Owen Jr, J.S., Altland, J.E. 2021. Substrate stratification: layering unique substrates within a container increases resource efficiency without impacting growth of shrub rose. Agronomy. 11(8). Article 1454. https://doi.org/10.3390/agronomy11081454.
Soilless substrate science: A north american needs assessment to steer soilless substrate research into the future Reprint Icon - (Peer Reviewed Journal)
Fields, J., Owen Jr, J.S., Lamm, A., Altland, J.E., Jackson, B., Zheng, Y., Oki, L., Fonteno, K., Santini, J., Campbell, B.T. 2021. Soilless substrate science: A north american needs assessment to steer soilless substrate research into the future. Acta Horticulturae. 1317:313-318. https://doi.org/10.17660/ActaHortic.2021.1317.36.
RFID and drones: the next generation of plant inventory Reprint Icon - (Peer Reviewed Journal)
Quino, J., Maja, J., Robbins, J., Fernandez, R., Owen Jr, J.S., Chappell, M. 2021. RFID and drones: the next generation of plant inventory. AgriEngineering. 3(2):168-181. https://doi.org/10.3390/agriengineering3020011.
Irrigation return flow and nutrient movement mitigation by irrigation method for container plant production Reprint Icon - (Peer Reviewed Journal)
Abdi, D.E., Owen Jr, J.S., Brindley, J.C., Birnbaum, A., Cregg, B.M., Fernandez, R.T. 2021. Irrigation return flow and nutrient movement mitigation by irrigation method for container plant production. Irrigation Science. 39:567-585. https://doi.org/10.1007/s00271-021-00727-1.
Relationship between particle size summation curves and the moisture characteristic curve for soilless substrates Reprint Icon - (Peer Reviewed Journal)
Zazirska, M., Owen Jr, J.S., Altland, J.E., Field, J.S. 2021. Relationship between particle size summation curves and the moisture characteristic curve for soilless substrates. Acta Horticulturae. 1305:209-218. https://doi.org/10.17660/actahortic.2021.1305.29.
High pH, low alkalinity pond water used for overhead irrigation does not affect plant growth of select flowering shrubs Reprint Icon - (Peer Reviewed Journal)
LeBude, A.V., Owen Jr, J.S., Holmes, C. 2021. High pH, low alkalinity pond water used for overhead irrigation does not affect plant growth of select flowering shrubs. Journal of Environmental Horticulture. 39(1):22–32. https://doi.org/10.24266/0738-2898-39.1.22.
The use of dewpoint hygrometry to measure low water potentials in soilless substrate components and composites Reprint Icon - (Peer Reviewed Journal)
Fields, J.S., Fonteno, W.C., Jackson, B.E., Heitman, J.L., Owen Jr, J.S. 2020. The use of dewpoint hygrometry to measure low water potentials in soilless substrate components and composites. Agronomy. 10(9):Article 1393. https://doi.org/10.3390/agronomy10091393.
Phosphorus requirement for biomass accumulation is higher compared to photosynthetic biochemistry for three ornamental shrubs Reprint Icon - (Peer Reviewed Journal)
Poudyal, S., Owen Jr, J.S., Sharkey, T.D., Fernandez, R.T., Cregg, B. 2020. Phosphorus requirement for biomass accumulation is higher compared to photosynthetic biochemistry for three ornamental shrubs. Scientia Horticulturae. 275. Article 109719. https://doi.org/10.1016/j.scienta.2020.109719.
Sensitivity of Hydrangea paniculata plants to residual herbicides in recycled irrigation varies with plant growth stage Reprint Icon - (Peer Reviewed Journal)
Poudyal, S., Owen Jr, J.S., Fernandez, R.D., Cregg, B. 2020. Sensitivity of Hydrangea paniculata plants to residual herbicides in recycled irrigation varies with plant growth stage. Water. 12(5):1402. https://doi.org/10.3390/w12051402.
Modeling water fluxes through containerized soilless substrates using HYDRUS Reprint Icon - (Peer Reviewed Journal)
Fields, J.S., Owen Jr, J.S., Stewart, R.D., Heitman, J.L., Caron, J. 2020. Modeling water fluxes through containerized soilless substrates using HYDRUS. Vadose Zone Journal. 19(1):e20031. https://doi.org/10.1002/vzj2.20031.
Improving nutrient management in the cultivation of ornamental plants in greenhouse, container and field production (Chapter 11) ()
Majsztrik, J., Owen Jr, J.S. 2020. Improving nutrient management in the cultivation of ornamental plants in greenhouse, container and field production (Chapter 11). In: Marcelis, L. and E. Heuvelink. Achieving sustainable greenhouse cultivation. Burleigh Dodds Science Publishing, Cambridge, UK. 23 pp.
Managing irrigation by measuring leachate ()
Oki, L.R., Owen Jr, J.S. 2020. Managing irrigation by measuring leachate. Greenhouse Product News. 30(4):26-27.
Dolomite and micronutrient fertilizer affect phosphorus fate when growing crape myrtle in pine bark Reprint Icon - (Peer Reviewed Journal)
Shreckhise, J.H., Owen Jr, J.S., Eick, M.J., Niemiera, A.X., Altland, J.E., Jackson, B.E. 2020. Dolomite and micronutrient fertilizer affect phosphorus fate when growing crape myrtle in pine bark. HortScience. 55(6)832-840. https://doi.org/10.21273/hortsci14558-20.