WASHINGTON, June 22, 2016 - Researchers at the U.S. Geological Survey and the U.S. Department of Agriculture have published a new study that demonstrates that agricultural conservation practices in the upper Mississippi River watershed can reduce nitrogen inputs to area streams and rivers by as much as 34 percent.
From: http://redirect.viglink.com?u=http%3A%2F%2Fwww.usda.gov%2Fwps%2Fportal%2Fusda%2Fusdahome%3Fcontentid%3D2016%2F06%2F0149.xml%26contentidonly%3Dtrue&key=ddaed8f51db7bb1330a6f6de768a69b8
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