Full explanation
Three technology generations: (1) NBPT (Agrotain, Limus) — the global workhorse molecule, 7–14 day delay; (2) NPPT (Limus Clear) — more stable in solid blends, BASF; (3) biological urease inhibitors (plant-extract-based) — newer, cheaper, but less stable. NBPT-chemistry dominates the Ukrainian market. Registration in the State Register of Pesticides and Agrochemicals is mandatory. Synergy with nitrification inhibitors (DMPP, DCD): products like SuperU, ENTEC combine both molecules — volatilization protection + delayed nitrification. Trade-off: urease inhibitor is important for surface urea on dry soil; for AN or incorporated urea — unnecessary. For UAN-32 it's also partially useful, since 50% of the N is in amide form.