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    Question

    If grain and straw yields are 4 and 6 t/ha,

    respectively, the harvest index will be
    A 33 % Correct Answer Incorrect Answer
    B 40 % Correct Answer Incorrect Answer
    C 60 % Correct Answer Incorrect Answer
    D 67 % Correct Answer Incorrect Answer

    Solution

    Harvest index = economic yield / biological yield => HI = 4/(10 )┬а ├Ч 100 = 40%┬а

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