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Published September 01, 2008, 12:00 AM

Making leonardite: Long-time additive made in Williston

WILLISTON, N.D. — North Dakota farmers from the early 1980s probably remember “leonardite” being marketed a soil amendment. It’s still being manufactured in the North Dakota and there are those who swear by it and others not convinced.

By: Mikkel Pates, Agweek

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