Page 257 - New Medley 5 Semester 1
P. 257

Giving water to plants is called irrigation.
           Crops are irrigated at proper time.


                                       Pesticides are used
                                       to kill the pests.           What are pests
                                                                    and pesticides?




























             Locusts, grasshoppers, insects, birds,                 The organisms which harm the crops
             rats, caterpillars, etc. are the common                are called pests. Pesticides are the
             pests that harm our crops.                             chemicals used to kill pests.




                         Ma'am, what is that?























          That is a scarecrow. Farmers use it to
          scare birds away from their crop fields.                After harvesting the crop, grains are
          Farmers also do fencing of agriculture                  kept safe in granaries and gunny bags.
          farm to keep away grazing animals like                  Grains are also kept safe in airtight,
          cows, goats, etc.                                       sealed containers called silos.


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