THE LAND ~ April 25, 2014 ~ Southern Edition

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© 2014

April 25, 2014

SOUTHERN EDITION

Dairy farm takes waste from 560 cows and turns it into a great

By DICK HAGEN The Land Staff Writer Compost the manure of 560 cows and you’ve got “garden food” galore. That’s the challenge — and more importantly, the marketing opportunity — for Rosenholm Dairy nearly every day. This high tech dairy operation separates their livestock manure solids and liquids with a screen separator. Liquids are stored in a holding lagoon and pumped as needed for irrigation purposes on its fields. However manure solids are stockpiled on an impermeable blacktop surface for approximately three months of composting. This process exceeds the National Organic Standards, which means turning the compost material five times after the compost windrow reaches 131 F. End result is a product called COWSMO. Marketing specialist Mandy Speerstra (pictured at right) shared some details about COWSMO at the recent Organic Farming Conference See COMPOST, pg. 25A

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