According to blogger Cynthia Bartel, “Farmers first seed their acres with a groundcover, such as bluegrass or fescue. Then they plant their row crop. During the first year, the perennial grass grows along with the corn. It remains to protect the soil after corn harvest when the soil is otherwise bare. In following years, so the grass does not get too tall and interfere with corn growth, the groundcover is suppressed in the spring and goes dormant during the corn growing season. The groundcover comes out of dormancy and regrows after the summer heat and drought stress ends.”
One benefit of this system is there are no annual planting costs, unlike traditional annual cover crops. Perennial groundcover can also provide environmental benefits including increases of soil carbon, and the reduction of runoff and nitrate leaching.
To learn more about perennial groundcover, read the entire blog: https://sustainable-secure-food-blog.com/2020/10/22/how-does-growing-corn-in-perennial-groundcover-work/
About us: This blog is sponsored and written by members of the American Society of Agronomy and Crop Science Society of America. Our members are researchers and trained, certified, professionals in the areas of growing our world’s food supply while protecting our environment. We work at universities, government research facilities, and private businesses across the United States and the world.