Atmospheric Environment · 1998 · 51 citations · 19 references
AgricultureEarth SciencesSoil SciencesSoil FertilitySoil Organic MatterSoil ScienceNitrogen AssimilationNitrogen CycleNitrogen CyclingNitrogen NutritionNutrient Uptake By PlantsPlant Nutrient UptakeFoliar Mineral UptakeFoliar Nutrient UptakeFoliar Water UptakePlant Nitrogen UptakePlant-available NitrogenRoot Nitrogen UptakeSoil Nitrogen Dynamics
19
Nitrogen Saturation in Northern Forest Ecosystems
John D. Aber, Knute J. Nadelhoffer, Paul A. Steudler et al. · BioScience · 1989 · 2.4K citations
The ammonium hypothesis, An additional explanation to the forest dieback in Europe
B. Nihlgaard · AMBIO · 1985 · 638 citations
Natural Resources, Ecology, Forestry +14