A complex three-component fertilizer containing nitrogen, phosphorus and sulphur. It is particularly good for soils with high potassium and low labile sulphur content. High sulphur content makes this grade vital for oilseeds – rapeseed, sunflower, flax, because sulphur promotes oil accumulation in seeds. Optimized sulphur nutrition is also essential forwheat and soybeans because sulphur promotes protein accumulation in grains.