In the European Union, agricultural uses of nitrogen make it the dominant source of nitrogen losses, with the current loss estimated to be 6.8 – 8 million tons per year (Westhoek et al, 2018). Farming generates 94% of ammonia emissions in Europe and while levels of nitrates decreased in rivers since 1993 they have not decreased in groundwater.
This study was focused on checking Optinyte™ technology ability to inhibit nitrification as well as to limit nitrate leaching. Several different fertilizer were considered – from ammonium sulphate through various slurry types up to biogas digestate.
Independing on the fertilizer following conclusions were drawn: