Description given on Youtube:
University of Wisconsin Extension Cover Crop website
See a Wisconsin field being planted into a cover crop following corn harvest. The tool used is an air seeder mounted on an implement. Francisco Arriaga, state specialist from the UW-Madison department of soil science describes key benefits about cover crops planted in the field.
The Wisconsin Crop Manager blog is hosted on the UW Nutrient and Pest Management website at http://ipcm.wisc.edu
The University of Wisconsin Integrated Pest Management video channel has many more agriculture related educational videos at https://www.youtube.com/user/uwipm