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Agriculture Form Three Cat Two Question Paper

Agriculture Form Three Cat Two

Course:Agriculture

Exam Year:2009

FRIENDS SCHOOL KAMUSINGA
KIMILILI

PRINCIPLES AND PRACTICES OF AGRICULTURE
PAPER 1
FORM 3 CAT 2 TERM 1 2009
443/1
TIME: 2 HOURS

INSTRUCTIONS
• This paper consists of three sections: A, B, and C
• Answer all the questions in section A and B two questions in section C.
• All answers for sections A and B must be written in the spaces provided.
• Answers for section C must be written on the foolscaps provided.

SECTION A(30 MARKS)
• Answer all the questions in this section by writing the answers in the spaces provided.

1. What is the importance of taking a farm inventory? (1 mark)

2. State two methods of land reclamation. (1 mark)

3. Name any two methods which can be used to detect mineral nutrient deficiency in crops.(1 mark)

4. State any four things that would happen to the element Nitrogen when ammonium sulphate fertilizer is applied to a field of maize. (2 marks)

5. State four deficiency symptoms of phosphorus in crops. (2 marks)

6. State four reasons why minimum tillage is encouraged in crop production. (2 marks)

7. Why should soil be added to the compost manure? (1 mark)

8. State any eight problems that face agriculture in Kenya. (4 marks)

9. What properties of soil are influenced by its texture? (2 marks)

10. What is a system of farming? (1 mark)

11. What causes late blight in tomatoes? (1 mark)

12. State three conditions that may lead to sub-division of agricultural land? (3 marks)

13. State four methods of breaking dormancy in certain seeds before planting. (2 marks)

14. State four sources of nitrogen in the soil for plants. (2 marks)

15. In what ionic forms is the element nitrogen absorbed by the plants? (1 mark)

16. State four reasons which make farmers plant early in the planting season? (2 marks)

17. Calculate the plant population per hectare for a crop whose spacing is 40cm by 15cm.(2 marks)

SECTION B( 30 MARKS)
• Answer all the questions in this section by writing the answers in the spaces provided.

18. A plot of land measures 6.6 metres long by 3.6 metres wide. This plot is prepared for planting cabbages at a spacing of 60cm by 60cm. The outer most rows start 30cm from the edges all round the plot. Showing your working,
Calculate:
(i) The number of rows falling on the width side of the plot. (2 marks)

(ii) The number of cabbage seedlings that should be planted in the plot. (2 marks)

19. (a) Describe the procedure which should be followed in spraying a crop of tomatoes with a fungicide in powder form, using a knapsack sprayer. (6 marks)

(b) State any six safety measures that should be taken while applying the fungicide onto the crop . (6 marks)

20. Different soil samples were tested and their pH values tabulated as shown below.
Soil sample PH value
P1 4
P2 5
P3 6
P4 7
P5 8
P6 9
P7 10
P8 11

(i) Which soil sample had the highest acidity? (1 mark)

(ii) Which soil is suitable for growing tea? (1 mark)

(iii) Which soil has the correct conditions for available nitrogen? (1 mark)

(iv) Which soil has the best conditions for multiplication and survival of desirable micro-organisms? (1 mark)

(v) How would the pH value of soil sample P1 be increased? (1 mark)

(vi) How would the pH value of soil sample P8 be reduced? (1 mark)

21. Two garden soil samples A and B weighing 100gm each were set-aside in a room for some hours. 50 gms of water were added to soil sample A and then weighed. The weight was 158gms. Sample B (100gms) was heated in an oven at 1000C to a constant weight of 95gms. It was heated further to 4000 upto a constant weight of 92 gms

Summary:
Soil sample Weight at collection Weight after adding water Weight after heating to 1000C Weight on further heating to 4000C
A 100gm 148gm - -
B 100gm - 95gm 92 gm

From the above information.
(i) What do you think was responsible for the loss in weight when 50gms of water were added to 100gms of soil? (1 mark)

State three uses of the substance that was lost from soil sample A when water was added. (3 marks)

(ii) On continuous heating of soil sample B to 4000C , what caused the loss in weight?(1 mark)

Give three uses of the substance that was lost on further heating upto 4000C. (3 marks)

SECTION C (4O MARKS)
• Answer any two questions from this section. Write your answers on the foolscaps provided.

22. (a) Describe the uses of farm fences. (10 marks)
(b) Explain the factors that a farmer should consider in constructing a farm structure.(10 marks)

23. (a) Describe the different types of land tenure systems in Kenya. (10 marks)
(b) What are the advantages of acquiring title deeds to land? (4 marks)
(c) State the major types of settlement schemes found in Kenya. (6 marks)

24. (a) Describe the methods of controlling soil erosion. (12 marks)
(b) State the factors, which influence soil erosion. (8 marks)

Agriculture Form Three Cat Two Question Paper

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