On Tuesday, April 7th, UW-Extension staff will be hosting an on-line webinar to deal with the sudden new topic of how to deal with all the milk that’s being dumped into manure storage facilities.
Carrie Laboski, UW-Extension Soil Scientist wouldn’t normally be talking about the soil nutrient value of MILK – but she is today. Laboski, along with Dr. Mark Stephenson from the Center for Dairy Profitability, Aaron O’Rourke from WI DNR, and Becky Larson, UW–Madison Department of Biological Systems Engineering, and Division of Extension will chime in with their suggestions on how farmers manage milk as a soil nutrient.
Laboski says milk has incredible nutrients for people – and for the soil She tells Pam Jahnke of the Midwest Farm Report that she estimates milk offers about $32 of fertilizer value to a field in the form of nitrogen, phosphorous and calcium. But it’s nutrients that have to managed properly.
Laboski says because milk, like manure, has a high “biochemical oxygen demand” if it ends up in a lake or stream it will breakdown quickly and consume the available oxygen – potentially leading to a fish kill. Land with slope, land that’s tiled must be avoided.