2000 · 12 citations · 0 references
AgricultureAgronomySoil SciencesSoil FertilitySoil ManagementSoil ScienceAgricultural ExtensionResidual FertilitySoil Fertility EvaluationSoil Fertility MaintenanceSoil Fertility ManagementTillage SystemsFertility ConservationIntegrated Soil Fertility ManagementSoil Fertility Management StandardsSoil Fertility StandardsSoil Nutrient Status Assessment