UPSC General Studies Solved Paper - General Studies-2017

  • question_answer
    Which of the following practices can help in- water conservation in agriculture?
    1. Reduced or zero tillage of the land
    2. Applying gypsum before irrigating the field
    3. Allowing crop residue to remain in the field
    Select the correct answer using the code given below:

    A)  1and 2

    B)                     Only 3    

    C)  1 and 3

    D)         1, 2 and 3

    Correct Answer: D

    Solution :

    Exp. [d]
    1. No-till farming (also called zero tillage or direct drilling) is a way of growing crops or pasture from year to year without disturbing the soil through tillage.
    2. Major benefits of gypsum are: Source of calcium and sulfur for plant nutrition, Improves acid soils and treats aluminum toxicity, Improves soil structure,
    3. Residue from the crops lie on the surface of the field, cooling it and increasing the moisture.


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