Reports by Ezra Aberle

	The Effect of Nitrogen Source and Rate on Soil Fertility Parameters over an 18 Year Period.
	The Effect of Previous Crop and Rotation on Hard Red Spring Wheat (HRSW) Production in each Four Year Cycle for the Past Twenty Years.
	The Effect of Tillage System, Nitrogen Fertility, and Crop Rotation on Hard Red Spring Wheat (HRSW) Production for Cycle Five (2003-2006) of a Long-Term Cropping Systems Study.