SAM 40

SAM 40 is an ammonium sulphate solution 8.5 (23.5) that provides nitrogen in ammoniacal form and a high concentration of sulphur available to plants.

Crops benefit greatly from the joint absorption of nitrogen and sulphur, with this ammonium sulphate solution being more effective than simply supplying nitrogen. Its composition makes it possible to acidify mixtures with other sources of fertiliser. Special care should be taken with those that carry phosphorus and/or calcium.