American Journal of Clinical Nutrition · 1978 · 58 citations · 28 references
AgricultureAgronomySoil SciencesPlant NutritionSoil Organic MatterSoil ScienceNitrogen AssimilationNitrogen BalanceNitrogen CycleNitrogen ManagementNitrogen NutritionNutrient RequirementsCrop Nitrogen Requirement EstimationNitrogen DemandNitrogen Fertilizer Management
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