William S. Harkcom
	
	
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			<h1 class="title">William S. Harkcom</h1>

			
			Pennsylvania State University<br>
			Dept of Crop and Soil Sciences<br>
			116 Ag Science and Ind Bldg<br>
			Penn State University<br>
			University Park, 
			PA<br>
			USA
			16802-3504<br>

			
				<b> Email:</b><a href="mailto:wsh1@psu.edu" onclick="return Schedule.handleClick(this)">
				wsh1@psu.edu</a><p>
			

			

			<b>Papers:</b><br>
			
				7:15 PM, Henry Gonzalez Convention Center, Hall C
				<a href="Paper68079.html" onclick="return Schedule.handleClick(this)">292-19 Crop Rotation and Fertilizer Type Affect Ammonia and Greenhouse Gas Emissions In a Long-Term Maize-Based Agroecosystems.</a>
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