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These terms define your current search. Click the × to remove a term. Economics, Business and Industry: economics > industrial organization and market structure > industry > service industry > utilities > gas utilities × 76 items, grouped by Farms and Farming Systems (view ungrouped items) agricultural land (3)    (Click to View) An economic assessment of the use of short-rotation coppice woody biomass to heat greenhouses in southern Canada Biomass and bioenergy (Click to View) Nitrogen fertiliser production based on biogas - Energy input, environmental impact and land use Bioresource technology (Click to View) Nitrogen from Australian dryland pastures Crop and pasture science aquaculture (2)    (Click to View) Bacterial protein grown on natural gas as protein source in diets for Atlantic salmon, Salmo salar, in saltwater Aquaculture (Click to View) Bacterial protein grown on natural gas in diets for Atlantic salmon, Salmo salar, in freshwater Aquaculture farms (1)    (Click to View) Nitrogen from Australian dryland pastures Crop and pasture science