What phenomenon refers to the loss of gaseous ammonia from soil to the atmosphere?

The phenomenon that refers to the loss of gaseous ammonia from the soil to the atmosphere is ammonia volatilization. This process occurs when ammonia gas, which may be present in the soil due to various factors such as fertilizer application or organic matter decomposition, escapes into the atmosphere.

Ammonia volatilization is significant because it can lead to a reduction in the availability of nitrogen for plant uptake, especially in agricultural systems. Factors that influence the rate of volatilization include soil pH, temperature, moisture content, and the method of nitrogen application.

Understanding this process is crucial for effective nutrient management in crop production, as it highlights the need for practices that minimize ammonia loss and optimize nitrogen use efficiency.