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Organic Gardeners use manure on their crops.
I think that's disgusting All types of farmers, including farmers who rely on synthetic chemicals, use manure on their crops. The difference is organic gardeners can't use the manure until it has been thoroughly composted. Synthetic farmers can use manure without waiting for it to compost. Peas, beans, clover, and hairy vetch are common green manures used by gardeners. These plants can be sown in the fall with special innoculants that fix nitrogen.