Flue gas desulfurization by-products additions to acid soil: alfalfa productivity and environmental quality

摘要

Flue gas desulfurization (FGD) by - products are created when coal is burned and SO_2 is removed from the flue gases. These FGD by-products are often alkaline and contain many plant nutrients. Land application of FGD by-products is encouraged but little information is available related to plant responses and environmental impacts concerning such use. Agricultural lime (ag-lime) and several new types of FGD by-products which contain either vermiculite or perlite were applied at 0, 0.5, 1.0, and 2.0 times the soil's lime requirement (LR) rate to an acidic soil (Wooster silt loam).