Science news articles about 'nitrogen inputs'

... pine is caused by an increased biomass nitrogen pool that was not driven by increased ecosystem level nitrogen inputs," Knops said. "But we found the white pine takes up nitrogen and holds on to it ...

... researchers collected data on crop yields, nitrogen inputs, weed densities, and crop populations ... Lab at BARC is designed to increase soil nitrogen availability and decrease weed pressure in organic ...

... forest against the effect of nitrogen added as pollution or fertilizer; however, chronic elevated nitrogen inputs would ultimately eliminate this natural source of forest fertility. The feather moss- ...

... Likens stresses, "By focusing only on minimizing phosphorus in our fresh waters, and ignoring nitrogen inputs, existing management strategies are exacerbating the decline of coastal ecosystems. We ...

... 98 percent between 1977 and 2005, while nitrogen fertilizer use increased a dramatic 271 percent ... increased substantially in sub-Saharan Africa. Nitrogen inputs are inadequate to maintain soil fertility ...

... suggests that three of these boundaries –climate change, biological diversity and nitrogen input to the biosphere – may already have been transgressed. "We must make these complicated ideas clear in ...