During the 2006 season, trials were conducted to test the effect of chemically granulated ammonium nitrated based planter mixes against bulk blended urea based planter mixes.
When exporting produce from South Africa to the European Union (EU), all products are sampled and analysed for traces of certain pesticides used during the growth stage.
Ammonium toxicity damages plant roots and water-conducting (xylem) tissues. As the xylem collapses and roots are damaged, water uptake is restricted and wilting and stunting occur.
Omnia is the only company in South Africa that continues to chemically granulate fertilizer and in such a unique way.