Use of combine harvester is beneficial for farmer? Explain
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The wide header at
the front of the harvester gathers the grain into the combine. The reel
moves it towards the cutter bar, where it is sliced off at the base.
The grain then travels up a conveyor to the threshing drum, where the
grains are separated from the stalks. A collecting tank gathers the
grain as it falls through sieves, and straw walkers carry the chaff
towards the back of the harvester. As the grain tank fills, it must be
emptied into a trailer through a side pipe called an unloader. The chaff
is either spread out over the field or baled up for later use.
Different removable heads are designed for the various types of
crops. Standard grain platforms are generally used for wheat, while flex
platforms that can cut closer to the ground are used for soybeans. Corn
heads have snap rolls that remove the ear from the stalk and leaves.
Dummy heads pick up crops that have already been cut. Special combines
with mud tracks are able to harvest rice. For hillsides, combines are
fitted with special hydraulic systems that enable them to level out
while they are harvesting.
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