William S. Harkcom

William S. Harkcom

Pennsylvania State University
Dept of Crop and Soil Sciences
116 Ag Science and Ind Bldg
Penn State University
University Park, PA
USA 16802-3504
Email: wsh1@psu.edu

Papers:
7:15 PM, Henry Gonzalez Convention Center, Hall C 292-19 Crop Rotation and Fertilizer Type Affect Ammonia and Greenhouse Gas Emissions In a Long-Term Maize-Based Agroecosystems.