What is Volatilisation?

Volatilisation is gaseous losses of N (nitrogen) to the atmosphere and can occur when the urea reacts with the soil moisture and breaks down leaving free ammonia (NH3) present at the soil surface. The enzyme urease, which is produced by denitrifying bacteria, facilitates the reaction. Research has shown that urea fertilisers can lose up to 30 percent or more of their N if not incorporated into the soil solution within 72 hours.

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