Environmental Geology · 1999 · 71 citations · 13 references
Natural SciencesEnvironmental SciencesSoil SciencesMineral Resource EstimationSoil FertilitySoil Organic MatterNitrogen CycleNitrogen CyclingNitrogen ManagementPhosphorus CycleResource DepletionResource EstimationNitrogen To Phosphorus RatiosSoil Nitrogen AssessmentSoil Nitrogen Budgeting
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Method for determination of atmospheric ammonia
Martin Ferm · Atmospheric Environment (1967) · 1979 · 325 citations · Full text
Origins of high nitrate in groundwater in Tanzania
H. Nkotagu · Journal of African Earth Sciences · 1996 · 69 citations