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    Question

    Quantity of seed required for sowing direct-seeded rice

    in a 10,000 square metre area at a spacing of 20 cm × 5 cm. if 1000 grain weight is 20 g and germination and purity is 90% each.
    A 20.0 kg Correct Answer Incorrect Answer
    B 24.7 kg Correct Answer Incorrect Answer
    C 22.2 kg Correct Answer Incorrect Answer
    D 50.0 kg Correct Answer Incorrect Answer

    Solution

    Seed rate (kg/ha) = (test weight, (w)×100) /  (Spacing (R×P)) × (100) /  (Germination %) × (100) /  (Purity %) = (20×100) /  (20×5) × (100 /  90) × (100 /  90) = 24.69 kg=24.7 kg

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