TAURUS (Polysulphate Premium & Crystal Green)

With the addition of barley, MARA is testing Polysulphate Premium (PSP) in its second-year of evaluation on barley and oats under conventional and organic systems.

We are also evaluating the efficacy of adding Crystal Green and the PSP under a conventional system. Both Polysulphate and Crystal Green are slow-releasing, natural fertilizer sources of Sulfur and Phosphorus, respectively. PSP is also composed of K, Mg, and Ca, which can be used for organic and conventional production systems. It provides balanced nutrients uniformly over the season for consistent crop development.