Read “What to prescribe for Iowa’s eroding topsoil?” by Haley Hansen (2015): https://www.desmoinesregister.com/story/money/agriculture/2015/11/27/what-prescribe-iowas-eroding-topsoil/76447188/ (Links to an external site.) Iowa is one of the top states in terms of annual soil losses. According to Prof. Richard Cruse’s lecture “Our eroding soil base” (Feb. 13, 2019), the rate of soil formation is about 0.5 ton per acreRead more about We can work on Soil erosion[…]