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American Farmland Trust
Working to stop the loss of productive farmland and promote healthier farming practices in the U.S.
Ecological Farming May Cause More Heavy Metals In The Soil
Some systems of ecological arable farming which use only organic fertilisers contaminate the soil with levels of cadmium, copper and lead which are twice as high as when a combination of both animal manure and artificial fertiliser is used. (February 10, 1999)
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July 21, 2012 at 5:15:04 UTC
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