Ohio State University / Purdue University / Ridgetown Campus University of Guelph Ridgetown / /
IndustryTerm
chemical reactions / rotation systems / no-till systems / injection systems / important tool / /
MusicGroup
Study Results / /
NaturalFeature
Lake Erie / Great Lakes / Lake Erie Basin Conservation Tillage / /
Organization
Ridgetown Campus University of Guelph Ridgetown / Ohio State University / Agronomy Department / USDA / Country Club / International Plant Nutrition Institute / Purdue University / /
Person
Robert Mullen / Johnson / Eckert / Harold Watters / Halloran / / /
Position
Extension Field Agronomist / Director of Agronomy / Director / Assistant Professor / representative / D.J. / Associate Professor / /