Extension

Jennifer G. Becker, Associate Professor. Dr. Becker has extension programs in bioenvironmental engineering; biological treatment processes; bioremediation of groundwater and soils; biodegradation; microbial ecology of natural and engineered systems; recovery of products from waste streams; and waste management.

E-mail: jgbecker@umd.edu
Phone: 301.405-8039

Frank J. Coale, Professor and Chair. Dr. Coale’s Extension programs focus on fertility: Crop rotations for phytoremediation of phosphorus over-enriched soils; Field and on-farm evaluation of the environmental impact of phosphorus in soils amended with biosolids; Intensive Nutrient Management for Efficient Crop Production; and Development of Nutrient Management Planning and Environmental Risk Assessment Software.

E-mail: fjcoale@umd.edu
Phone: (301) 405-1306

Gary K. Felton, Associate Professor and Water Quality Extension Specialist. Dr. Felton’s Extension programs focus on biosolids, urban nutrient management, poultry litter management, and composting.

E-mail: gdfelton@umd.edu
Phone: (301) 405-1179

Reginal (Reggie) M. Harrell,
Professor of Fisheries and Wildlife Sciences and Natural Resources Extension Specialist. Dr. Harrell's Extension programs involve environmental ethics, fisheries and natural resource management, use of native and ornamental aquatic plants for nutrient uptake and restoration, aquaculture and fisheries management especially with respect to stress mitigation andconservation and breeding genetics.


E-mail: rharrell@umd.edu
Phone: 410-827-8056 x 140

Josh McGrath, Assistant Professor. Dr. McGrath’s Extension programs focus on Soil Fertility, Nutrient Management, and Environmental Sustainability.

E-mail: mcgrathj@umd.edu
Phone: 301.405.1351

David S. Ross, Professor and Extension Agricultural Engineer. Dr. Ross’ intrests are horticultural engineering, controlled-environment agriculture, trickle irrigation, water and nutrient management, Web-based teaching, and postharvest cooling.

E-mail: dsross@umd.edu
Phone: 301.405.1188

Patricia Steinhilber, Faculty Associate. Dr. Steinhilber is the Program Coordinator for the Maryland Extension Agricultural Nutrient Management Program.

E-mail: psteinhi@umd.edu
Phone: 301.405.1319

Richard Weismiller, Professor, Extension Soil and Water Resource Management Specialist and Associate Director, International Programs, College of Agriculture and Natural Resources. Dr. Weismiller’s Extension program focuses on sustainable nutrient management.

E-mail: rweismil@ umd.edu
Phone: 301.405.1307