Forest Ecology and Management · 1996 · 225 citations · 67 references
AgricultureEarth SciencesSoil SciencesSoil ChemistrySoil FertilitySoil Organic MatterMountain EcologyNitrogen BalanceNitrogen CycleNitrogen CyclingNitrogen FixationNitrogen Fixation In SoilsChemical Speciation Of NitrogenNitrogen Cycling DynamicsNitrogen EquilibriumNitrogen FluxesSaturationSoil Nitrogen FractionsTerrestrial Carbon-nitrogen Interactions
67
Methods of soil analysis. Part 2. Chemical and microbiological properties.
A. L. Page · 1982 · 13K citations
Soil sampling and methods of analysis
Choice Reviews Online · 1994 · 3.6K citations
Nitrogen limitation on land and in the sea: How can it occur?
PeterM. Vitousek, Robert W. Howarth · Biogeochemistry · 1991 · 3.5K citations
WALTER J. MURPHY · Chemical & Engineering News · 1956 · 3.2K citations
Nitrogen Saturation in Northern Forest Ecosystems
John D. Aber, Knute J. Nadelhoffer, Paul A. Steudler et al. · BioScience · 1989 · 2.4K citations