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  1. Agro-Allied Industries and Relationship between Agriculture and Industry | Week 1
    2 Topics
    1 Quiz
  2. Environmental Factors Affecting Agricultural Production | Week 2
    5 Topics
    1 Quiz
  3. Rock Formation | Week 3
    6 Topics
    1 Quiz
  4. Soil Formation and Profile Development | Week 4
    3 Topics
    1 Quiz
  5. Types, Composition and Properties of Soil | Week 5
    10 Topics
    1 Quiz
  6. Simple Farm Tools: Uses and Maintenance | Week 6
    2 Topics
    1 Quiz
  7. Farm Machines and Implements | Week 7
    6 Topics
    1 Quiz

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Topic Content:

  • Types of Farm Machinery and Their Uses
    • Tractor
    • Bulldozer
    • Tree Puller
    • Sheller
    • Dryers
    • Incubators
    • Milking Machines




  • A tractor is a powerful and expensive multi-purpose motor vehicle used for lifting or pulling farm implements.
  • It has a hydraulic control system which lifts mounted implements under the control of the operation.
  • It has a Power-Take-Off (PTO) shaft that transmits power from the tractor’s engine to PTO-driven machines or implements like Ploughs, Harrows, Harvesters, Planters and others.
Power-take-off (PTO) shaft
  • It has four wheels with rubber tyres.
  • It consists of an internal combustion engine which uses diesel or petrol without spark plugs.
  • The power produced in the engine is transmitted to the wheels and PTO by the transmission parts. The power take-off shaft then transmits power from the tractor’s engine to PTO-driven machines or implements. For example, in a mower, PTO transfers power from the engine’s drive pulley to the blades. In most cases, this power transfer applies to a secondary shaft that drives a hydraulic pump, generator, air compressor, pneumatic blower, or vacuum pump.
  • Popular brands of tractors include: David Brown, Massey Ferguson, Ford and Fiat.

Functions of Parts of the Tractor:

(i) Three-point linkage:

  • Point of attachment for coupled implements.
  • Allows the raising and lowering of implements.
  • Regulates the depth and variation of thrust/depth of plough according to soil conditions.
  • Helps to maintain a constant draught/force.
  • Helps in the transfer of weight to the rear wheels of the tractor.


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