Soil Science Society of America Journal · 1974 · 25 citations · 0 references
AgriculturePlant SciencesSoil SciencesPlant NutritionSoil ChemistrySoil FertilityLiming PracticesNutrient AvailabilityPlant-soil Nutrient InteractionsSoil AciditySoil LimingSoil Nutrient AvailabilityLiming Effects On Nutrient AvailabilityLiming In Acid SoilsLiming ResponseNodulation EfficiencyPlant Nutrient Availability Under Acidic ConditionsResidual Liming EffectsSoil Ph Effects On Nutrient AvailabilityYield Response To Liming
Abstract The response of soybeans ( Glycine max (L.) Merrill) to the direct and residual effect of liming in relation to soil acidity, Al and Mn toxicities and P availability was studied in five Oxisols of Southern Brazil under successive wheat ( Triticum aestivum L.)‐soybean cropping. Yield responses to liming were highly significant due to the high exchangeable Al and extractable Mn, the low pH, exchangeable Ca + Mg, and available P found in these soils. Optimum yields were obtained when liming adjusted Al from 0.1 to 0.5 meq/100g (1.5% Al saturation), soil pH from 5.2 to 5.7 and Ca + Mg from 5.7 to 8.5 meq/100g. Liming also increased root nodulation and reduced P fixation and Mn levels in the soil.