Page 13 - Genius Kidz Prudence Learning Sc-8
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done by using a thresher. The process of (i) Trowel (Khurpi) :
separating grains from the crops is called Weeds are removed simply by
threshing. Threshing can also be done with the cutting them with a “trowel” or
help of farm animals by allowing them to uprooting them by hand. But this
trample over the crop so as to separate the should be done carefully as it can
grains. even uproot our native desired plant.
(ii) Bioherbicides :
Herbicide as the name implies are
used to kill herbs. Artificial
herbicides or natural herbicides can
be used for weed removal.
Disease Control : Diseases can be
Threshing by farm Threshing by men controlled by using fungicides and
animals and women
pesticides that kill or suppress the growth
After threshing, winnowing is done that of pathogens.
includes the separation of grains from the
chaff usually with the help of wind.
Winnowing Machine
6. Crop protection : Crops need to be
protected from potential diseases, pests and Weeding
from competition with weeds.
7. Storage : Proper storage is essential for the
Weeds and their removal : Weeds are the
harvested crops, otherwise they can be
unwanted plants. Common examples of
spoiled due to moisture or unwanted low or
weeds include Parthemum, (carrot),
high temperature. If not stored properly these
Amaranthus, etc.
can even be eaten up by rodents (are small
Weeds stand in competition with native mammals marked by a pair of constantly
plants for food, space, sunshine, water, etc. growing incisors), birds or insects. Methods
As a result of this the growth of native that can be adopted for proper storage of
plants is affected. agricultural crops include:
So, weeds need to be removed, the process (a) Drying : Crop grains must be dried before
of removing weeds is called weeding. storage. This restricts the exposure of
Weeding can be done by : grains to unsuitable moisture conditions.
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