Concepedia
1984 · 158 citations · 0 references
AgricultureAgronomySoil SciencesSoil FertilitySoil ManagementSoil ScienceFertilizer ManagementFertilizer ProductionManure Nutrient ManagementSoil EvaluationSoil Fertility EvaluationSoil Fertility ManagementFertilization ManagementPhosphorus FertilizationSoil Fertilizer Recommendation