Field Efficiency (\( Feff \)):

\[ Feff = \frac{EFC}{TFC} \times 100 \]

Where:

• \( Feff \) is the field efficiency, in percentage (%).
• \( EFC \) is the effective field capacity, in hectares per hour (ha/hr).
• \( TFC \) is the theoretical field capacity, in hectares per hour (ha/hr).