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Wood chips help curb nitrate leaching

(PhysOrg.com) -- Wood chips can significantly stem nitrate flow from crop fields into the surrounding watershed, according to a U.S. Department of Agriculture (USDA) study.

Feb 20, 2012 5 / 5 (1) 0

Clean soot particle filters

The soot particle filters found on diesel vehicles are designed to ensure that no harmful particles make their way through the exhaust pipe. Often, though, the exhaust from newer-model engines is not hot enough ...

Oct 05, 2011 not rated yet 1