Sunday, December 11, 2005

Energy Use and Sustainable Farming

Sustainable Table: The Issues: Fossil Fuel and Energy Use:
"Fortunately, a number of agricultural techniques can be used to decrease our dependence upon fossil fuel. One effective method is to reduce or eliminate tillage (plowing the soil); a Canadian study determined that implementation of a modified no-till system reduced the use of diesel fuel from 7.9 gallons to 1.1 gallons per hectare.12 Another study indicated that total CO 2 emissions generated by a no-till system were 92% lower than emissions from conventional tillage.13 Fossil fuel consumption could also be decreased by reducing fertilizer use, by using manure more efficiently, and by practicing certain types of crop rotation (for example, including legumes in crop rotation).14
Although these techniques are usually difficult to implement on huge mono-crop industrial farms, many sustainable farms already practice these energy-saving production methods. In fact, small-scale, less mechanized, more biodiverse organic farming operations have been shown to use 60% less fossil fuel per unit of food than conventional industrial farms.15"

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