Farmers who have used a three- or four-crop rotation system for more than 10 years are most likely to reap the benefits of improved soil health and higher yields, according to a survey of producers in eastern South Dakota. With fertilizer prices at an all-time high, this might be an opportune time for producers to consider adding oats, peas and spring or winter wheat to their rotations, according to associate professor Tong Wang of South Dakota State University’s Ness School of Management and Economics. Read more in this story from South Dakota State University.