Idaho farmers discover green manure

Members of the Blackfoot people in the state of Idaho have pioneered the use of oriental mustard as a green manure, growing it on potato fields to combat weeds, erosion and pests and diseases. Now a trial with the University of Idaho is extending the opportunity to mainstream farmers in the potato state. John Taberna, a Blackfoot seed distributor, says that oriental mustard (possibly Brassica juncea, but the article doesn’t say and I’m just guessing) has a fungicidal effect, in addition to other benefits of green manures. The tribe’s business council agreed to reduce pesticide use by 15% over the next 20 years, and the green manure is part of that effort.

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