1995 · 219 citations · 0 references
AgricultureAgronomyCrop SciencesCrop ProductionNutrient ManagementSoil FertilityCrop Nutrient RequirementsCrop NutritionFertilizer ManagementFertilizer SourcesPlant Nutrition ManagementSoil Fertility ManagementFertilization ManagementNitrogen Fertilizer ManagementNutrient Recommendation Systems