Curriculum Vitae

Jacob Hamilton Shreckhise

404 A Clay Circle

Blacksburg, VA 24060

(540) 830-1315

jshreck@vt.edu

Education

PhD Horticulture Expected May 2017

Virginia Tech

Blacksburg, VA

Dissertation: Assessing phosphorus chemical fate and improving phosphorus use efficiency for containerized nursery crops

Co-Advisors: Dr. Alex Niemiera and Dr. Jim Owen

B.S. Environmental Horticulture May 2013

Virginia Tech

Blacksburg, VA

Overall GPA:  3.96/4.0

In major GPA: 4.0/4.0

Current Research Objectives

To determine the concentration and form of phosphate in pore-water of lime- and micronutrient-amended and un-amended soilless substrates used to produce containerized crops when fertilized with liquid nitrogen, phosphorus and potassium.

To determine the minimum concentration of phosphorus needed in pore-water to produce maximal growth of selected woody ornamental taxa in containerized crop production.

To determine the controlled-release fertilizer-phosphorus rate required to maintain minimally sufficient pore-water phosphorus concentrations for optimal growth of containerized nursery crops

Related Experience

Teaching

Woody Landscape Plants Teaching Assistant under Dr. Alex Niemiera August 2013-May 2015; January 2011-December 2011

  • Instructing an undergraduate level plant identification lab
  • Informing students on how to properly identify and differentiate woody plant species
  • Creating, distributing and grading weekly quizzes

Herbaceous Landscape Plants Teaching Assistant under Dr. Holly Scoggins March-May 2013

  • Describing unique identification features of over 100 herbaceous perennials
  • Supervising and grading weekly quizzes

Floral Design Teaching Assistant under Dr. Alan McDaniel and Ms. Barbara Leshyn August 2010-May 2013

  • Critiquing floral arrangements and teaching student the elements of design
  • Processing and preparing floral material

Research

Graduate Research Assistant under Dr. Jim Owen May 2015-present

  • Installing filter socks to reduce sediment and nutrient runoff at container nursery
  • Measuring saturated hydraulic conductivity using UMS KSAT software

Undergraduate Researcher under Dr. Alex Niemiera June 2011-Aug. 2013

  • Researched the effect of pH on urea hydrolysis in pine tree substrate
  • Organized and performed lab experiments
  • Collected and analyzed data

Experiment Coordinator for Scott’s Fertilizer Company under Dr. Alex Niemiera June 2011-Aug. 2012

  • Applied specified fertilizer rates to tested container plants
  • Communicated with company’s area representative on project specifics
  • Measured growth indexes, substrate solution pH and electrical conductivity

Outreach

Extension call on irrigation management for a container nursery July 2015

  • Taught growers how to measure leaching fraction in a nursery setting
  • Demonstrated measurement of irrigation distribution uniformity

Workshop Leader for 4-H Convention at Virginia Tech July 2011

  • Taught 4-H students key identifying features of woody landscape plants
  • Discussed the importance of scientific nomenclature
  • Examined students’ plant identification knowledge upon conclusion of workshop

Judge for the VA State FFA Convention at Virginia Tech July 2011

  • Judged cutting propagation technique of competitors
  • Processed flowers for corsage design competition

Industry

Summer Foreman and Nursery Manager at Shreckhise Shrubbery Sales and Landscaping June 2005-Aug. 2010

  • Maintained irrigation system and fertilization of nursery crops
  • Assisted customers in developing their home landscape
  • Supervised work crews and installed residential landscapes

Publications and presentations

Refereed Articles

  1. Niemiera, A.X., L.L. Taylor, and J.H. Shreckhise. 2014. Urea hydrolysis in pine tree substrate is affected by urea and lime rates. HortScience 49(11):1437-1443.

Scientific Abstracts

  1. Shreckhise, J.H., J.S. Owen, Jr., J.C. Brindley, A.X. Niemiera. 2015. Evaluating growth response of three containerized ornamental taxa to varying low pore-water concentrations of phosphorus. HortScience 50(9):S24-S25.

Conference Proceedings

  1. Shreckhise, J.H., J.S. Owen, Jr., A.X. Niemiera. 2015. Predicting pH of Sphagnum peat moss and pine bark substrates amended with ground and pulverized dolomitic limestone. Southern Nursery Assoc. Res. Conf. (in press)

Outreach and Extension Publications

  1. Shreckhise, J.H., J.S. Owen, Jr., J.C. Brindley, A.X. Niemiera. 2015. Evaluation of phosphorus nutrient use efficiency in several woody ornamental nursery crops. Virginia Nursery Landscape Assoc. Nwsl. 85(3):48-51.
  2. Shreckhise, J.H. News – IPPS Southern Region Meeting. Virginia Nursery Landscape Assoc. Nwsl 84(4):8-10.

Presentations Delivered at Professional Meetings

  1. Shreckhise, J.H. Predicting pH of Sphagnum peat moss and pine bark substrates amended with ground and pulverized dolomitic limestone. Southern Nursery Assoc. Res. Conf.
  2. Shreckhise, J.H. Growth Response of Three Containerized Ornamental Taxa to Varying Low Pore-water Concentrations of Phosphorus. Am. Soc. Hortic. Sci. Southern Region.

Competitive Grants

  1. Owen, J.S., Jr., J.H. Shreckhise, A. Niemiera, M. Eick. 2015. Rethinking phosphorus fertility in container nursery production: Identifying the fate and lowest rate of phosphorus. Horticultural Research Institute – $18,000
  2. Shreckhise, J.H. International Plant Propagators’ Society, Southern Region Travel Grant.
  3. Shreckhise, J.H., J.S. Owen, Jr., A.X. Niemiera, and J. Brindley. 2014. Evaluation of phosphorus nutrient use efficiency in several woody ornamental nursery crops. Virginia Agricultural Council – $16,890.

Scholarships Received

  1. Sidney B. Meadows Scholarship Endowment Fund 2012
  2. Julian H & Margaret S Gary Scholarship (3×) 2010; 2011; 2012
  3. George W. Shreckhise Memorial Scholarship (3×) 2009; 2011; 2012
  4. President’s Horticulture Scholarship 2011
  5. Cyrus McCormick Scholarship 2011

Awards and Honors

  1. Southern Nursery Association Bryson L. James Student Research Competition. 2015. Second Place, Ph.D. Category July 2015
  2. American Society for Horticultural Science Norman F. Childers M.S. Graduate Student Paper Competition. First place. January 2015
  3. 2013 Outstanding Senior Award for Horticulture May 2013
  4. President of Pi Alpha Xi, the Honor Society for Horticulture April 2011-May 2013
  5. American Society for Horticultural Science Outstanding Horticulture Student April 2012
  6. Sixth place in a national landscape installation competition at Student Career Days March 2012
  7. Dean’s List 2009-2013
  8. Third place in a national woody plant identification competition at Student Career Days 2011

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