Protecting Water

“The ability to seed a cover crop while also side-dressing the standing corn with fertilizer and spray herbicide is a huge money saver, potentially improving returns by over $100 per acre." ~ Greg Roth
Chris Houser, Greg Roth, and Corey Dillon. Photo by Michael Houtz

Chris Houser, Greg Roth, and Corey Dillon. Photo by Michael Houtz

Research Leads

Greg Roth
Professor, Department of Plant Science

Chris Houser
Extension Educator

William Curran
Professor, Department of Plant Science

Corey Dillon
Farm Machinery Operator/Mechanic, Department of Plant Science


The Cover Crop InterSeeder and Applicator plants cover crop seeds between rows of corn (2, 4, 6, or 12 rows), while also spraying a post-emergent herbicide and applying a fertilizer to help establish the cover crop.

Why It’s Important

  • Reduces agricultural pollution in waterways and improves soil quality
  • Enables adoption of cover crops by fitting them into crop rotations in a profitable and reliable way
  • Could save farmers $10 to $20 an acre by performing two to three operations at once


  • InterSeeder Technologies, a Penn State startup company
  • The interseeder continues to be marketed by Interseeder Technologies to researchers and crop producers around the United States.
  • Currently, interseeders are in use in 16 states: IL, KY, LA, MD, ME, MI, MN, NJ, NY, OH, OK, PA, SD, VA, VT, and WI, as well as Ontario.
  • U.S. Patent (13/443,339)

Technology Development Awards

  • $688,684 – CIG (2013)
  • $39,967 – RAIN Grant (2012, 2013)
  • $15,000 – NESARE (2013) (agroecosystems)
  • $7,500 – Ben Franklin TechCelerator (2013)