Volatilization Loss orAmmonia as Innuenced by Integrated Nutrient Management in Calcareous Soils

Cumulative volatilization loss of ammonia decreases with Increase in soil water content and addition of organic manure whereas it increases with application of blue-green algae and application of nitrogen at higher rate. The cumulative volatilization loss of NH₃ followed the order: control> blue-green algae> farmyard> manure> blue-green algae plus FYM. The peaks of ammonia volatilization were highest at the 12^th day, thereafter, these declined and became zero after the 15^th day. The cumulative volatilization losses of ammonia at different periods followed pseudo first orderkinetic reaction. The rate constants decreased underflooded condition.