Effect of timing of simulated rainfall on ammonia volatilization from urea, applied to soil of varyingmoisture content

SUMMARY Ammonia volatilization from granular urea applied at 10gNm −2 to pasture was investigated using an enclosure method. Misting 0, 4 or 16 mm of water on to the soil at field capacity within 3 h of urea application resulted in total NH 3 losses of 2.81, 0.92 and 0.18 g N m −2 respectively. Furt... View More