Odor Control Practices for Northwest Dairies

Large confined dairy cow feeding operations have increased recently in the Pacific Northwest. They produce huge quantities of manure, odors from which can bring conflicts with neighbors. This 23-page publication details a number of options for reducing odors and resulting conflicts. Please note one correction: On page 9, where it reads, ""and a blend of material that meets a desired ratio of carbon to nitrogen, ideally between 20:1 and 30:1 (optimal C:N ratio is 25)"" should now read as follows: ""... ideally between 20:1 and 40:1) (optimal ratio is 30:1).""