Urea ammonium sulphate fertilizersDefinition Urea ammonium sulphate (UAS) is a solid fertiliser product with a nitrogen content of 38 percent and a sulphate content of 18.75 percent. Preferred Units: N/A Scope Note: N/A This term is used for the following terms: N/A Approved Date 02-Feb-2016 Click here to give feedback on this term or suggest an update. |