(PhysOrg.com) -- The tile drainage systems in upper Mississippi farmlands -- from southwest Minnesota to across Iowa, Illinois, Indiana and Ohio -- are the biggest contributors of nitrogen runoff into the Gulf of Mexico, ...
Environment
Nov 24, 2010
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Midwestern agriculture contributes the vast majority of nitrogen in the Gulf of Mexico, causing an oxygen-starved hypoxic zone and challenging coastal economies. State and federal policies have tried for decades to provide ...
Earth Sciences
Mar 1, 2023
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To combat weeds, farmers use a variety of tools and methods. By understanding the strengths and downfalls of each tool, a farmer can make the best decisions for his or her operation to keep pesky weeds out of the field.
Environment
Apr 22, 2020
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Spring in America's heartland is often wet. That makes its soil too soft for planting. One solution to that issue is tile drainage. Growers insert a series of pipes (drain tiles) under their fields, which drains water from ...
Environment
Oct 10, 2018
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Harmful algae isn't just a problem for high-profile bodies of water—it poses serious, toxic threats in small ponds and lakes as well, new research has found.
Environment
Aug 23, 2018
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Algae blooms in the Gulf of Mexico use up the majority of the oxygen in the water, leading to massive "dead zones" that cannot support fish or other wildlife. The culprit? Nitrate, running off agricultural fields through ...
Environment
Jul 31, 2017
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The nitrogen and phosphorous that nurture crops become pollutants when they drain into lakes and streams. Woodchip bioreactors have proven useful in removing nitrates from tile drainage water, but researchers are still searching ...
Environment
Sep 24, 2015
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Perennial biofuel crops such as miscanthus, whose high yields have led them to be considered an eventual alternative to corn in producing ethanol, are now shown to have another beneficial characteristic–the ability to reduce ...
Environment
Jan 10, 2013
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In their eagerness to cut nitrogen and phosphorus pollution in the Mississippi River and Gulf of Mexico, people have often sought simple explanations for the problem: too many large animal operations, for instance, or farmers ...
Environment
May 6, 2011
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Tile drainage in the Mississippi Basin is one of the great advances of the 19th and 20th centuries, allowing highly productive agriculture in what was once land too wet to farm. In fact, installation of new tile systems continues ...
Environment
Sep 27, 2010
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