Questions
Instructions to candidates
- Answer all the questions in sections A and B and Any 2 questions in section C.
SECTION A (30 Marks)
Answer all questions in this section in the space provided.
- Outline four ways in which biotic factors affect crop production (2marks)
- Give two importance of a shed in nursery bed of pest control. (1mark)
- State four benefits of using vegetative propagation in orange production.(2marks)
- List four features of fertile soil (2marks)
- State four reasons why a farmer prepares a seedbed early. (2marks)
- Give four reasons for keeping breeding records. (2marks)
- Outline four importance of a good soil structure to crop production. (2marks)
- Give two importance of earthing up crops (1mark)
- Give four ways of breaking seed dormancy. (2marks)
- State four disadvantages of using plastic pipes to convey water. (2marks)
- Give three forms in which water is available in the soil. (11/2 mark)
- State three roles of organic matter in sandy soils. (1 ½ mark)
- What is the name given to the point where supply and demand curves intersect? ( ½ mark)
- Give four advantages of using herbicides to control weeds. (2marks)
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- Give two functions of sulphur in crops. (1mark)
- State two characteristics of phosphatic fertilizers on crop growth. (1 mark)
- State three advantages of drip irrigation. (1 ½ mark)
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- Give two advantages of planting cereal crops in rows instead of broadcasting(1mark)
- State two reasons for planting crops at correct spacing. ( 1 mark)
- Give four methods of classifying herbicides. (2marks)
SECTION B (20MKS)
Answer all the questions in this section.
- Study the illustrations of a crop rotation programme below.
- Identify the crop rotation programme illustrated above. (1mark)
- Explain two reasons why it is appropriate to plant peas in year 2. (1mark)
- Name one weed species that can be controlled using crop rotation program illustrated above. (1mark)
- Identify one disease in Irish potatoes that can be controlled by the above rotation program. (1mark)
- Give two reasons why grass ley should come last in the rotation program (2 marks)
- The diagram below illustrates an experiment on soil. Study it carefully and answer the questions that follow.
- State the aim of the experiment. (1mark)
- If the volume of water illustrated in the measuring cylinders was observed after one hour, identify the soil samples labelled A and B. (2marks)
- State two ways in which the soil structure of the soil sample labelled C above can be improved. (2marks)
- The following illustration show different production curves in agricultural economics. Study them and answer the questions that follow.
- Identify the production curves labelled D and E. (2marks)
- What does the law derived from the production function labelled F state? (1mark)
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- Which one of the three production curves is rare in agriculture? (1mark)
- Give a reason for your answer in (c) (i) above. (1mark)
- The diagram below illustrates a type of soil erosion.
- Identify the type of soil erosions. (1mark)
- How does the type of erosion shown above occur? (2marks)
- How does cover cropping help to control the type of erosion shown above. (2mks)
SECTION C ( 40 marks)
Answer any two questions in this section in the spaces provided after the last questions
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- Explain the marketing functions of oranges on the farm. (10 marks)
- The following is a farm record of Mr. Juma he had kept as 30th June 2022.
Study it and carefully answer the questions that follow.
Cash in bank 6,000/=
Cash in hand 4,000/=
Debtors 40,000/=
Creditors 20,000/=
Havested potatoes 50,000/=
Loan 500,000/=
Bank overdraft 100,000/=
Land 1,600,000/=
Milking machine 100,000/=- Prepare a balance sheet from the above information for Mr. Juma’s farm. ( 8 marks)
- State two benefits of balance sheet to Mrs Sanda:
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- Describe the production of onions under the following sub-headings.
- Seedbed preparation (3marks)
- Field management (6marks)
- Harvesting (3marks)
- Outline eight farming activities which may encourage soil erosion. (8marks)
- Describe the production of onions under the following sub-headings.
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- State and explain causes of land fragmentation in Kenya . (5mark)
- Explain seven ways in which government policy improves agriculture production. (7marks)
- Outline eight factors that determine the number of secondary tillage operations when preparing a seed bed. (8marks)
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