How Corn Gluten Meal Works

How Corn Gluten Meal WorksCorn Gluten Meal (CGM) is a by-product of the corn wet milling process that contains the protein fragment of the corn. Patented in 1991 by researchers at Iowa State University, Corn gluten meal is considered a non-toxic natural alternative to synthetic pre-emergence herbicides. But the chief question is, does it really work? And if so, how? Corn gluten meal inhibits the