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Carrots from coal? UW field trial in Lingle tests a Wyoming soil amendment

Posted 10/23/26

Wyoming grows plenty of crops, and it mines more coal than any other state. At the University of Wyoming’s research farm in Lingle, scientists are asking whether the second can help the first, using carrots as the test crop.

The three-year trial, “Carrot yield enhancement using coal char as a soil amendment in Wyoming soil,” is under way at the James C. Hageman Sustainable Agriculture Research and Extension Center, a UW Agricultural Experiment Station facility. Year one is in the ground and out of it. The headline from the preliminary numbers: plots treated with 10 tons of coal char per acre grew the biggest carrots in the trial.

That is not yet a finding, and the researcher leading the project is careful to say so.

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