This cool technique can save sea creatures and soil—so why aren’t more farmers using it?
IF YOU PAY STATE taxes in Maryland, you fund a program that gives farmers as much as $90 per acre—$22,500 annually for a typical corn operation—to plant a crop that’s not even intended for harvest. This absurdsounding initiative cost the state’s coffers a cool $24 million in 2015.
Yet I come not to expose a government boon doggle, but to praise an effort crucial to saving our most valuable fisheries. Let me explain.
Every summer, an algal bloom stretches along the Chesapeake Bay, the most productive estuary in the continental United States. As the algae dies, it sucks oxygen from the water, suffocating or driving away marine life. Cleaning up the dead zones would lead to more productive fisheries, increased tourism, and higher property values— benefits that would total $22 billion per year, ac cording to the Chesapeake Bay Foundation.
What drives the algal blooms is what makes corn grow tall: nitrogen. The corn that farmers plant sucks up 50 percent or less of the nitrogen in the fertilizer they apply in the spring. But come harvest, there are no plants to absorb the excess, and so it leaches into streams and runs off into the bay—where it fertilizes a bumper crop of algae.
This story is from the July/August 2017 edition of Mother Jones.
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This story is from the July/August 2017 edition of Mother Jones.
Start your 7-day Magzter GOLD free trial to access thousands of curated premium stories, and 9,000+ magazines and newspapers.
Already a subscriber? Sign In
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