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    Question

    Which of the following statement is

    incorrect?
    A When a field is ploughed, soil porosity is increased. Correct Answer Incorrect Answer
    B Tillage operations increase the B.D. of the soil Correct Answer Incorrect Answer
    C Tillage increases oxidation and decomposition of OM Correct Answer Incorrect Answer
    D Tillage decreases of thermal conductivity and heat capacity. Correct Answer Incorrect Answer
    E All are correct Correct Answer Incorrect Answer

    Solution

    When the soil is loosened due to ploughing,┬а the soil volume increase without any effect on weight. This decreases the bulk density of the soil.

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