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2015 KCSE Gem Sub-County Joint Evaluation

Agriculture Paper 2

SECTION A (30 Marks)

Answer all questions in this section.
1.

State three conditions under which shifting cultivation is practiced in agiven area.

1.5 marks

2.

State four activities that are carried out during soil sampling in the field.

2 marks

3.

Give four conditions that necessitate clearing of land.

2 marks

4.

Give three ways in which nitrogen is removed from atmosphere.


1.5 marks

5.

Mention four advantages of using polythene sleeves in the establishment of seedlings.

2 marks

6.

List two maintenance practices of sub-surface irrigation.

1 marks

8.

Give four reasons for keeping health records.

2 marks

9.

State four factors that affect the selectivity and effectiveness of herbicides.

2 marks

10.

State four roles of additives in silage making.

2 marks

11.

State two precautions to be taken when harvesting cotton.

2 marks

12.

State four reasons why sub-soiling is important as an operation of land preparation.

2 marks

13.

Name any two diseases that affect bean production in the field.

1 marks

14.

a) Differentiate between over sowing and under sowing. (1 mark)
b) Given the maize is planted at a spacing of 75 x25cm. Calculate the plant population in a plot of land measuring 4m x 4m. Show your working. (2 marks)

3 marks

15.

State four sources of agricultural credit to farmers.

2 marks

16.

List four management practices which are used to maintain pasture productivity.

2 marks

SECTION B (20 Marks)

Answer all questions in this section.
17.

The illustration below shows one of the grazing systems commonly used by farmers.
a) Identify the grazing system (1 mark)
b) With the help of arrows indicate the movement of livestock from one paddock to the next. (1 mark)
c) What is the purpose of the part labeled Y on the illustration. (1 mark)
d) State two advantages of this system of grazing. (1 mark)

4 marks

18.

The diagram below represents parts of a water harvesting structure. Study it carefully and answer the following questions.
a) Name the parts labeled A and O on the diagram. (2 marks)
b) Identify the method of water harvesting illustrated. (1 mark)
c) State the use of the part labeled B. (1 mark)
d) State two maintenance practices needed for part labeled E. (2 marks)

6 marks

19.

Below is an illustration of a maize cob attacked by smut disease. Study it carefully and answer the questions that follow.
a) Beside what is visible on the maize cob. State two other symptoms of the disease. (2 marks)
b) State two control measures of the above disease. (2 marks)

4 marks

20.

The illustration below shows materials used in vegetative propagation labeled A and B.
i) Identify materials A and B (1 mark)
ii) Name the parts labeled X and Y (1 mark)
iii) Name the preparation method used to get the vegetative material labeled B. (1 mark)
iv) State three disadvantages of vegetative propagation. (3 marks)

6 marks

SECTION C (40 Marks)

Answer two questions in this section.
21.

a) Explain how various practices carried out in the field help to control crop diseases. (12 marks)
b) What are the advantages of grass legume pasture over a pure grass pasture? (8 marks)

20 marks

22.

a) Describe the establishment of kales under the following sub-headings:
i) Establishment in the nursery (3 marks)
ii) Transplanting of seedlings. (8 marks)
c) Explain the various ways in which each of the following environmental factors influence crop
production.
i) Temperature (4 marks)
ii) Wind (5 marks)

20 marks

23.

a) Define profit and loss account
b) The following is a list of financial and position of Mr. Ndama’s farm in 2010. Study the information carefully and then answer the questions that follow:

Items
Sale of diary cattle
Closing valuation
Purchase of fertilizer
Interest payable
Milk sale
Veterinary bills
Wages
Opening evaluation
Sales of pigs
Purchase of assorted tools
Depreciation of machines
Repair of pigsty
Value
28,000.00
25,000.00
6,000.00
2,000.00
3,000.00
900.00
1,600.00
4,800.00
8,000.00
3,560.00
720.00
370.00

i) Prepare a profit and loss account for Mr. Ndama’s farm.
ii) Calculate the percentage profit and loss of Mr. Ndama’s firm.

20 marks

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