Beginning with the Fall of 2010 Spring Valley added their branded stabilized nitrogen fertilizer Regain® to their array of product options. Regain® adds the ability to provide a highly cost effective option to protect applied nitrogen. This means that you can use less total product, yet have more nitrogen available for plant uptake. Meanwhile, the lower application and better utilization by the turf insures that less product is wasted to volatilization into the atmosphere or leaching through the soil.