Ammonium Thiosulfate is a neutral to slightly basic (7 - 8 pH), clear liquid solution, containing 12% nitrogen and 26% sulfur. Ammonium Thiosulfate is compatible with most liquid fertilizer materials. Nitrogen and sulfur are important components of proteins. Sulfur deficiency can affect the plant’s ability to utilize nitrogen for protein synthesis. Thiosulfate sulfur is unique in that it exists in two oxidation states. This gives it enhanced pathways of availability more suitable to the sulfur uptake patterns of most plants. When applied to soils, Ammonium Thiosulfate decomposes to give approximately equal parts of sulfate sulfur (S04 -2) and elemental sulfur (S0). The sulfate sulfur is immediately available for plant uptake, whereas the elemental sulfur S0 must undergo oxidation to a sulfate S04 2 before it can be absorbed by the plant.