English, Burton C.; Krog, David R. - Center for Agricultural and Rural Development (CARD), … - 1984
In a recent study, Pope, Bhide, and Heady [10] found that conservation tillage, when combined with contour farming, was the most economical means of reducing erosion on most Iowa soils. They continued by indicating that on some of the more erosive soils, less intensive crop rotations, strip...