Nitrogen fertilizer remains in soils and leaks towards groundwater for decades, researchers find

Nitrogen fertilizer applied to crops lingers in the soil and leaks out as nitrate for decades towards groundwater — «much longer than previously thought,» scientists in France and at the University of Calgary say in a new study.Thirty years after synthetic nitrogen fertilizer had been applied to crops in 1982, about 15 percent of the fertilizer N still remained in soil organic matter, the scientists found.

Fuente : http://www.eurekalert.org/pub_releases/2013-10/uoc…