As research partner of the ReNu2Cycle project, Inagro presented the first results from their field trials at the Ramiran 2025 conference (15-17 October 2025), where researchers from across the world share ideas about manure emissions, nutrient recycling and more.
Within the ReNu2Cycle project, Inagro is conducting field experiments with RENURE (REcoverd Nitrogen from manURE) derived from animal manure treatment. The scope of the trials includes blends of these fertilisers to cater to the needs of the crop and fill in various nutrient needs (mostly N, P, K and Mg). These RENURE products are mineral fertilisers and can function as a circular alternative to synthetic fertilisers.
Field trials were conducted with maize, potato and winterwheat in cooperation with farmers, where treatments with RENURE fertilisers and the farmers’ normal practice are applied in strips alternating each other. This is done to closely resemble normal field conditions and to be able to compare the two treatments. RENURE fertilisers were a blend of mineral concentrate (from ultrafiltration and reverse osmosis of the liquid fraction of manure) and ammoniumsulphate (derived from ammonia stripping of the liquid fraction).
The results indicate that the RENURE fertilisers can be a good alternative to synthetic fertilisers. Though they do not supply any organic matter to the field, this still requires an application of organic fertilisers.