Tropical Agriculture · 1986 · 29 citations · 0 references
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AgricultureAgronomyPlant SciencesNutrient ManagementPlant NutritionSoil FertilityFertilizer ManagementNitrogen FixationNitrogen ManagementNitrogen NutritionPhosphorus ManagementPhosphorus NutritionNitrogen Fertilization EffectsNitrogen Fertilizer ManagementNitrogen Fertilizer ReplacementNitrogen Fixation In Cropping SystemsPhosphate FertilizersPhosphorus FertilizationPhosphorus Requirement