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KCSE CLUSTER TESTS 20

Agriculture Paper 1

SECTION A (30 Marks)

Answer all the questions in this section in the spaces provided.
1.

List any three climatic factors which influence agriculture (1 ½ mks)

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1.5 marks

2.

Explain two ways in which temperature influences soil formation.

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1 marks

3.

List three methods of fertilizer application in crop production.

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1.5 marks

4.

List two sites on which agroforestry trees can be established on a farm.

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1 marks

5.

Give two advantages of planting cereal crops in rows instead of broad casting.

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1 marks

6.

Explain how the following methods help to control weeds.

a) Biological method

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b) Legislative method

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2 marks

7.

Mention four practices that should be carried out to maintain grass pastures.

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2 marks

8.

State any three sources of capital for farming.

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1.5 marks

9.

State three advantages of a mixed –grass legume pasture over a pure stand pasture.

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1.5 marks

10.

State three effects of soil erosion.

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1.5 marks

11.

Give two reasons for carrying out soil testing.

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1.5 marks

12.

State three farming activities which may cause pollution to water sources.

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1.5 marks

13.

State four financial books that should be kept on a farm.

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2 marks

14.

Name four natural factors that may encourage soil erosion

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2 marks

15.

State two functions of agricultural finance co-operation.

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2 marks

16.

Name two methods of sampling soil from the field for analysis.

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1 marks

17.

Give two methods of controlling blossom end rot disease in tomatoes.

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1 marks

18.

State three factors which determine the quality of farmyard manure.

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1.5 marks

19.

Name two methods of frame formation in tea.

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1.5 marks

20.

Give two reasons for drying grain crops before storage.

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1.5 marks

21.

State three factors that determine the depth of cultivation during seedbed preparation.

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1.5 marks

22.

Explain how monocropping leads to a loss of soil fertility.

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1.5 marks

SECTION B (20 Marks)

Answer all the questions in this section in the spaces provided.
23.

The graph below shows the quantity of potatoes supplied at different prices on a market

a) From the graph determine the following :-

i) The quantity of potatoes supplied at a price of ksh 65 per kilogram

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ii) The price per kilogram when 80kg of potatoes were supplied to the market

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b) A part from the price, state four other factors that could have influenced the supply of potatoes on the market.

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c) If the price of potatoes changes Ksh 50.00 to Ksh.60.00 per kilogram resulting in a change of supply from 400kg to 600kg, calculate the elasticity of supply

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5 marks

24.

Study a section of the diagram of soil conservation practice shown below, then answer the questions that follow.

a) Identify any two soil conservation practices on the diagram, other than the grass wall.

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b) Explain any two ways in which grass wall helps to conserve soil.

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3 marks

25.

Below is a diagram of a tomato fruit which has been infected by pest K.

a) Name pest K.

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b) State two cultural methods used in controlling the pest in the field

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3 marks

26.

Below is an illustration of a structure used in crop propagation. Study the diagram and answer the questions that follow.

a) Identify the structure

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b) State two advantages of having the part labeled C.

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c) What is the recommended distance between D and E in the diagram?

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d) Give two ways of minimizing root damage of tomato seedlings during lifting from the above structure. ...................................................................................................................................................................................................................................................................

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5 marks

27.

a) Calculate the plant population in a 4.5 ha plot on a maize crop planted at the spacing of 75cm x30cm (Assume 1 plant per hole).

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b) A farmer wanted to topdress one hectare of maize crop. There was only sulphate of ammonia containing 21% N. Sulphate of ammonia is applied at the rate of 120kg/ha. Calculate the amount of nitrogen in kilograms that is to be applied per hectare.

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4 marks

SECTION C (40 Marks)

Answer any two questions from this section
28.

a) Describe four practices carried out to prepare seeds for planting. (8mks)

b) Outline five reasons for planting crops at the correct spacings. (5mks)

c) Describe the factors that should be considered when classifying crop pests. (7mks)

20 marks

29.

a) Describe the factors that contribute to the competitive ability of weeds. (6mks)

b) Outline five reasons for planting annual crops at the onset of rains. (5mks)

c) Describe the farming practices which may help in achieving minimum tillage (6mks)

20 marks

30.

a) State and explain the principles that govern the operations of farmers co-operative societies. (10mks)

b) Discuss the importance of budgeting in agricultural production. (10mks)

20 marks

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