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Tag Archives | nitrate

Aerial of intersecting roads in rural Indiana

Nitrogen Fertilizer’s Long-Lasting Legacy

Dangerous nitrate levels in drinking water could persist for decades, increasing the risk for blue baby syndrome and other serious health concerns, according to a new study published by researchers at the University of Waterloo. Nitrogen fertilizer applied to farmers’ fields has been contaminating rivers and lakes and leaching into drinking water wells for more […]

soil test

More Accurate Soil Testing

Soil testing that determines needed fertilizer will measure nitrate in the soil, but tests don’t sufficiently account for soil microbes, which mineralize organic nitrogen and make more of it available to a crop. As a result, farmers often apply more fertilizer than necessary. Richard Haney, a U.S. Department of Agriculture soil scientist in Temple, Texas, […]

Runoff_of_soil_&_fertilizer

Synthetic Nitrogen Lingers for Decades

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 study. Thirty years after synthetic nitrogen (N) fertilizer had been applied to crops in 1982, about 15 percent of […]