Reports by Tim B. Parkin

	Effect of cover crop in mitigation of greenhouse gases emission from plots amended with swine manure.
	Emission of the Greenhouse Gas Nitrous Oxide (N2O) from Riparian Forest Buffers, Warm-Season and Cool-Season Grass Filters and Crop Fields.
	Field measurement results versus DAYCENT simulations in nitrous oxide emission from agricultural soil in Central Iowa.