Soil supplies mineral nutrients to the
crop. These nutrients are essential for
the growth of plants. In certain areas
farmers grow crop after crop in the same
field. The field is never left uncultivated
or fallow. Imagine what happens to the
nutrients?
Continuous growing of crops makes
the soil poorer in certain nutrients
Therefore, farmers have to add manure
to the fields to replenish the soil with
nutrients. This process is called
manuring. Improper or insufficient
manuring results in weak plants.
Manure is an organic substance
obtained from the decomposition of
plant or animal wastes. Farmers dump
plant and animal waste in pits at open
places and allow it to decompose. The
decomposition is caused by some
mieroorganisms.
matter is used as organic manure
The decomposed
You have already learnt about
vermicomposting in Class VI
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