SARE grantees and brothers, Keith and Brian Berns, have cover-crop seed business, and have created a SmartMix Calculator, an online spreadsheet that calculates seed quantities and cost, carbon-to-nitrogen ratio (C:N), nitrogen-fixation potential and other factors for mixes of nearly 40 cover-crop species, including legumes, brassicas, grasses and broadleaf crops.
This video features Keith Berns demonstrating how he uses the SmartMix calculator.
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