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    Question

    Which meteorological parameter is directly measured by

    using an open pan evaporimeter in the context of irrigation scheduling?
    A Rainfall Correct Answer Incorrect Answer
    B Wind speed Correct Answer Incorrect Answer
    C Solar radiation Correct Answer Incorrect Answer
    D Evaporation Correct Answer Incorrect Answer
    E Transpiration Correct Answer Incorrect Answer

    Solution

    Open pan evaporimeters (e.g., Class A pan) measure the rate of evaporation. This data helps in estimating evapotranspiration and irrigation water requirements using methods like IW/CPE ratio.

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