Ammonia Volatilization from Urea and an Experimental Triazone Fertilizer

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Abstract
Urea, a major source of N fertilizer for turfgrass, is susceptible to ammonia (NH3) volatilization when applied to the surface of turf (4) and soil (3). Urea hydrolyzes in the presence of urease and water to form ammonium ( and, in the process, raises soil pH (3). As a result, a portion of the formed can then be converted to gaseous NH3, part of which can volatilize into the atmosphere. Under certain environmental conditions, significant N loss may result (1).

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