Masterblend 20-10-20 is an effective, economical substitue for the general purpose 20-20-20 formulations. It is Designed to give better Nitrate to Ammonium balance. The 20-10-20, like all other Masterblend soluble fertilizer, is completely available to plants. There is no “fall out” to clog equipment or soils. It is a safe, all purpose formula that performs well while providing appreciable savings.