Influence of soil properties and soya bean cropping history on the Bradyrhizobium japonicum population in some French soils

bacteria bradyrhizobium japonicum calcareous soils calcium carbonate carbonate de calcium carbonato de calcio ciencia del suelo fracciones del suelo fraction du sol france francia minerales minerals sandy soils sciences du sol soil soil properties soil sciences soil separates soja sol sol calcaire sol sableux soybeans suelo suelo arenoso