Recently, we have seen a flurry of stories about studies done on Iowa State University’s Marsden Farm demonstrating the power of crop rotation as an engine of modern sustainable agriculture. The study documented high yields and handsome profits on farming plots employing long crop rotations: three-or four-year rather than the usual two-year corn-soy rotations. In addition to high yields and high profits, the long rotations controlled weeds with only sparing use of herbicides and maintained productivity without excessive use of chemical fertilizers. Read more >
October 30, 2012 10:09 AM EDT
October 11, 2012 12:56 PM EDT
UPDATE: March 18, 2013, 3:15 pm: See bottom of post for an update on coverage of this story.
Big Ag has worked hard for decades to instill a belief—in farmers, policymakers, and the public—that its chemical-intensive industrial farming methods are more productive than low-input methods, and more profitable for farmers. In recent years, study after study has cast doubt on this view, and now a team of government and university researchers has published perhaps the most compelling data yet showing that more sustainable farming systems can achieve similar or greater yields and profits, despite steep reductions in chemical inputs. Read more >