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Field Days: Testing Hay

Sarah Brown
Yellowstone County’s Callie Cooley tests hay for high nitrate levels at her downtown Billings office

On this episode of Field Days, Yellowstone County agricultural extension agent Callie Cooley tests hay for high nitrate levels.

Field Days is an award-winning weekly audio diary following the day-to-day life of agricultural producers in Montana, produced by Yellowstone Public Radio. Theme music by John Kosel of the High Country Cowboys.

Sarah Kanter Brown is the producer of YPR’s Field Days. A graduate of the Columbia School of Journalism, Brown has worked at newspapers and magazines nationwide.
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