Full explanation
Trade names: Agrotain (Koch), Limus (BASF), N-Lock (Corteva, combined with nitrification inhibitor), Ukrainian generics. NBPT is critical for: (1) surface urea application without incorporation (typical in direct seeding or strip-till); (2) summer pre-plant applications for drought-tolerant crops; (3) applications on moist soil surfaces without follow-up rain. Application: urea is sprayed with NBPT concentrate via auger or conveyor before bagging (factory-treated available at +5–8% price premium). April 2026 price: Agrotain-equivalent UAH 1 200–2 500/L [VERIFY], treatment cost per tonne of urea UAH 1 200–2 500 (5–12% of urea price). Trade-off: a 5–12% investment pays back when N losses drop ≥10% — ROI typically 200–400%. On cold wet soils with high residue load — MUST-HAVE; on clean till with immediate incorporation — not justified.