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    Question

    Diagnosis and Recommendation Integrated System approach

    was provided by __ ?
    A Mitectierlich's Correct Answer Incorrect Answer
    B Beaufils Correct Answer Incorrect Answer
    C Liebig's Correct Answer Incorrect Answer
    D Wallace Correct Answer Incorrect Answer

    Solution

    The Diagnosis and Recommendation Integrated System (DRIS) was developed by Beaufils in 1973, this method consist in dual relation between a pair of nutrients (N/P, P/N, N/K, K/N...) instead of the use of sufficiency range or critical level

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