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Why is the soil turned and loosened befo...

Why is the soil turned and loosened before seeds are sown?

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The soil is turned and loosened before sowing of seeds because this (ploughing) facilitates better plant growth. Loose soil has a lot of air trapped in it, which is used by the roots to breathe easily. Ploughing of soil brings nutrient rich soil to the top. It also increases water holding capacity.
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Knowledge Check

  • Seeds placed deep in the soil do not germinate because they are

    A
    Unable to get sufficient oxygen
    B
    Without sufficient food to bring the seeding to the surface
    C
    Under pressure of overlying soil layers
    D
    Unable to get light

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    In ploughing, the soil is loosened and turned.

    Why is moisture retained longer in the soil if it is harrowed?

    Before sowing the crop seeds, the soil of fields is loosened and overturned. This process is called ploughing or tilling. For sowing, farmers obtain certified seeds from State Agriculture Department and Seed Corporation. Sometimes, farmers also select seeds from their own crop. Nowadays ploughing is done by a tractor driven cultivator as shown in the figure below. The use of cultivator saves labour and time. A farmer does ploughing and simultaneously releases seeds from the funnel. Seeds thus released pass through iron pipe to the soil furrows which are formed by the plough. Read the passage and try to answer the below questions: (a) Name the process shown in the figure. (b) Explain the process shown in the given figure. (c ) How does ploughing affect soil fertility? (d) Why turning and loosening is very important for cultivation of crops?

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