Soil properties associated with formation of barren areas on formed dykelands cropped to forage

agricultural soils calcio calcium cation cationes cations cropping systems densidad densidad del suelo density fatiga del suelo fatigue du sol feed crops fodder crops fosforo inorganic acid salts ion exchange magnesio magnesium nova scotia organic matter phosphore phosphorus plantas forrajeras polders potasio potassium reclaimed land resistance to penetration sistemas de cultivo sodio sodium soil soil density soil sickness sol sol agricole sol de polder suelo tierras rehabilitadas