OG RENURE: Ammonium salts from manure for mineral fertilizers

Ammonium salts from manure offer a sustainable mineral nitrogen fertilizer option for crops like maize, grass, grains, vegetables, and horticultural plants. RENURE group guidelines cover production via stripping and scrubbing, product performance, economic assessment, and compliance with EU regulations including the Nitrate Directive, CE labeling, and nitrogen limits (170 kg/ha). Ammonium sulfate supports sulfur-demanding crops like coconuts. Key criteria include TOC:TN ≥90%, Cu ≤300 mg/kg, Zn ≤800 mg/kg. Challenges include higher costs and storage needs, but precision application enables reduced nitrogen use. In closed systems, salt accumulation requires flushing. RENURE, funded by the European Rural Development Fund, supports transition from research to farm adoption.