Category: Irrigation and Water Management

  • Effective Rainfall Calculator

    What is Effective Rainfall?

    Effective Rainfall is the portion of total rainfall that is actually available for crop use. Losses occur due to runoff, deep percolation, and evaporation.

    Standard Formula

    Effective Rainfall (mm) = Total Rainfall − Losses

    Where losses include runoff, evaporation, and percolation beyond the root zone.

    Enter Required Data

    Important Notes:
    • Effective rainfall is always less than total rainfall
    • Used for irrigation scheduling and NIR calculation
    • Highly influenced by soil type and slope