| http://www.w3.org/ns/prov#value | - ???Our sandy, light-colored soils have limited ability to hold nutrients to begin with,??? Hardy said. ???And some of our nutrients are what we call ???mobile in soils,??? simply meaning they move with excessive water through the soil or ???leach.??? ???Potassium, nitrogen and sulfur are the most mobile nutrients,??? Hardy said, ???but even nutrients such as magnesium, which is held more tightly t
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