Time of Application (\( T \)):

\[ T = \frac{Pw \cdot As \cdot D \cdot A}{100 \cdot C \cdot Q} \]

Where:

• \( T \) is the time of application, in hours.
• \( Pw \) is the soil moisture in dry weight, %.
• \( As \) is the apparent specific gravity, decimal.
• \( D \) is the depth of root zone, in centimeters (cm).
• \( A \) is the area irrigated, in hectares.
• \( Q \) is the size of the stream, in cubic meters per hour (m³/h).
• \( C \) is a constant equal to 100.