Winterkill losses put pressure on forage supplies
Alfalfa winterkill is widespread in areas of Minnesota, Wisconsin, Iowa and the Dakotas, according to last week’s USDA Feed Outllook report. University of Wisconsin-Madison agronomist Dan Undersander estimates the loss of at least 1 million acres of alfalfa in Wisconsin, with another 0.75 million to 1 million acres lost in Minnesota and the Dakotas.
In an effort to increase hay availability, USDA’s National Resources Conservation Service office in Wisconsin will allow producers to plant crops on acres classified as highly erodible land (HEL). Since replanting on approximately half of winterkilled fields is reportedly not recommended due to autotoxicity concerns, the opening of the HEL land to cultivation provides valuable acres on which to plant needed forage crops.
For producers who are looking to plant and/or replant forage acres, oats and peas are commonly recommended, as stands that can be established relatively quickly. However, industry sources have reported that oats, pea and alfalfa seed is in relatively short supply, thus forage rations may need to be supplemented with corn silage or other feedstuffs.