Lesson Notes By Weeks and Term - Senior Secondary School 1

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  4. Sources of farm power I

Term: 3rd Term 

Week: 6

Class: Senior Secondary School 1

Age: 15 years

Duration: 40 minutes of 2 periods each

Date:       

Subject:    Agriculture

Topic:-      Sources of farm power I

SPECIFIC OBJECTIVES: At the end of the lesson, pupils should be able to

  1. Define Farm power
  2. State and explain the sources of farm power
  3. Discuss the advantages and disadvantages of each farm power

INSTRUCTIONAL TECHNIQUES: Identification, explanation, questions and answers, demonstration, videos from source

INSTRUCTIONAL MATERIALS: Videos, loud speaker, textbook, pictures

INSTRUCTIONAL PROCEDURES

PERIOD 1-2

PRESENTATION

TEACHER’S ACTIVITY

STUDENT’S ACTIVITY

STEP 1

INTRODUCTION

The teacher reviews the previous lesson on ways of improving agricultural mechanization

Students pay attention

STEP 2

EXPLANATION

She defines farm power. She mentions and explains sources of farm power

 

Students pay attention and participates

STEP 3

DEMONSTRATION

She discusses the advantages and disadvantages of each source of farm power

Students pay attention and participate

STEP 4

NOTE TAKING

The teacher writes a summarized note on the board

The students copy the note in their books

 

NOTE

FARM POWER

This is the rate at which work is done in the farm.

 

SOURCES OF FARM POWER

The sources of man power include

  1. HUMAN POWER

This is the power provided by human being and it is the most common source of power in farm operations. Man through his intelligence can perform activities in the farm like land clearing, stumping, ploughing, harrowing, ridging planting, harvesting, weeding, storage and food processing. 

ADVANTAGES

  1. He is easily available in all farm operating
  2. He is cheap to obtain and easy to control
  3. He uses his intelligence to control the work he does.

DISADVANTAGES

  1. Man cannot perform tedious farm operation
  2. Poor state of health of an individual can affect his performance
  3. Man can easily die
  4. He consumes time and less efficient
  5. Human labour can easily get fatigued
  6. efficiency decreases with age

 

  1. ANIMAL POWER

This is the power derived from farm animals which are used to perform some farm operations. Bulls are used for pulling ploughs, harrows, planters, ridgers, etc while camels, horse and donkeys are used for transportation of farm produce.

ADVANTAGES OF ANIMAL POWER

  1. Animals can perform more jobs than man
  2. It is cheaper to purchase
  3. It can handle many farm operations
  4. It can be controlled or easy to maintain
  5. Maintenance cost is low
  6. Animals do not get tired or fatigue easily
  7. It can be used in place of machines for drawing implement 

DISADVANTAGES

  1. Animals used for work have shorter life span
  2. They loose energy and weight quicker than machines
  3. Huge amount of money is needed to feed and maintain the animals
  4. It cannot work at certain times of the day
  5. Disease may affect the efficiency of the animal
  6. The use of animals is restricted for certain climatic zone (e.g. tse-tse fly free zone)
  7. They are not suitable for processing agricultural products as they may eat it up
  8. Not suitable for large scale production
  9. They can die or get fatigue easily
  10. Power output is low.  

 

  1. MECHANICAL POWER

This is the power derived from machine engines like planter, harrows, harvester, ploughers ridges, processing etc. They are needed for large scale production.

ADVANTAGES

  1. It can handle more areas per unit of time
  2. It works faster and more efficient
  3. It reduces cost of labor and total cost of production
  4. It is not affected by disease
  5. It can perform a wide range of operation
  6. They reduce, drudgery in farm operation and saves times

 

DISADVANTAGES

  1. It requires huge capital investment or it is costly to purchase
  2. It requires a lot of technical know how to operate
  3. It can lead to unemployment of people
  4. It is not suitable for small scales farming
  5. It can cause air pollution through gases from exhaust pipes
  6. It is not easily available
  7. Maintenance cost is high
  8. It can destroy soil structure

 

  1. ELECTRICAL POWER

This is the type of Power derived from electricity or generator

ADVANTAGES OF ELECTRICAL POWER

  1. It is cheap source of power
  2. it is very neat
  3. It cannot contaminate products
  4. It can be used at different times for various services
  5. It is easy to operate
  6. It saves labour
  7. It aids fast operation and increase productivity
  8. It supply is dependable especially in developed countries

DISADVANTAGES

  1. It is dangerous if carelessly handled
  2. It is not always regular especially in developing countries
  3. It Maintenance cost may be high
  4. It can cause fire hazard
  5. It cannot be widely used in field operation

 

 

EVALUATION:   1. Define farm power

  1. List and explain the sources of farm power
  2. Discuss the advantages and disadvantages of each                              source of farm power

CLASSWORK: As in evaluation

CONCLUSION: The teacher commends the students positively