” Agricultural land and good water quality usually do not mix.” That’s according to academics and agronomists, who echo what farmers are finding out for themselves. That’s why cover crops are essential.
You’ve learned by now how cover crops keep nutrients like nitrogen and phosphorus in the field, instead of rushing off the field in heavy rainfall or spring thaw. Whereas agriculture used to be considered destructive to the environment, with conservation tillage it’s a whole new ballgame. In fact, in the article quoted above, the upper Midwest research indicates that reduction of agricultural runoff is helping to clean up the Great Lakes.
It’s hard to imagine that the Great Lakes contain over 20 percent of the freshwater on the planet! Thus, it’s a major source of drinking water for about 40 million people, it’s crucial that the source remain viable for that purpose, as well as serving as habitat for countless species of wildlife, fish and other forms of life.
Reports from the East and Gulf coasts indicate that cover crops also are having an impact on water quality in the Chesapeake Bay and in the Gulf of Mexico, where algae bloom from excess ag runoff has caused eutrophication and hypoxia. Basically, those words mean death to aquatic life, an important fishing industry and eventually tourism as well.
It’s hard to imagine that you planting annual ryegrass on your acreage would have that kind of effect. But as thousands of farmers each year are finding out, the small improvements made on your property has ripple effects a thousand miles away.
Not only do cover crops make your property (and your bank account) healthier, the effort you make impacts millions of others who depend on a clean environment for their food, health and entertainment.