Note: E. Europe = Eastern Europe; C. Asia = Central Asia. The present review was conducted to outline the NH 3 loss mitigation effect of adding NBPT, 2-NPT, NBPT + NPPT and MIP to solid urea or urea ...
The most common method of measuring urease activity is to add a colorimetric assay agent for ammonia (e.g., Nessler’s reagent) to a solution of hydrolyzed urea. The absorbance of the solution at a ...