Reports by Thomas E. Schumacher

	Changes in Soil Organic Carbon of Crop Rotations in the Northern Corn Belt.
	The Effect of Landscape Restoration on Soil Properties Influencing Crop Productivity.
	Tillage Management and Previous Crop Effects on Soil Physical Properties and Maize Grain Yield.
	Using Landscape Restoration to Increase Crop Yield on Severely Eroded Hilltops.
	Variability of Tillage Erosion Coefficient Measurements.