• Caption: Cover crop trial plots at Sauvie Island Organics in March 2008. Nick Andrews at OSU Extension ran trials of many cover crops on a number of farms in the Northwest to develop his cover crop Nitrogen contribution calculator which is available free online.
  • Aperture: ƒ/4
  • Shutter Speed: 1/800
  • Date: 3/2/08 3:08:16 PM PST