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    Question

    The ratio of volume of water that is stored in the root

    zone of crops and ultimately consumed by transpiration or evaporation or both to the volume of water actually delivered at the field is defined as:
    A Water Conveyance Efficiency Correct Answer Incorrect Answer
    B Water Application Efficiency Correct Answer Incorrect Answer
    C Water Use Efficiency Correct Answer Incorrect Answer
    D Crop Water Use Efficiency Correct Answer Incorrect Answer
    E Water Storage Efficiency Correct Answer Incorrect Answer

    Solution

    Ea= ws/ wf x 100 where, Ea = water application efficiency, per cent Ws = irrigation water stored in the root zone of farm soil Wf = irrigation water delivered to the farm (at field supply channel)

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