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Kwanza District Joint Evaluation Test - 2012-Agric Pp1 Question Paper
Kwanza District Joint Evaluation Test - 2012-Agric Pp1
Course:Secondary Level
Institution: Mock question papers
Exam Year:2012
Name………………………………………………………. Index No…………………/…….
School……………………………………………………… Date ………………………….…
Candidate’s Signature………………………
443/1
AGRICULTURE
Paper1
JULY / AUGUST 2012
Time: 2 Hours
KWANZA DISTRICT JOINT EVALUATION TEST - 2012
Kenya Certificate of Secondary Education (K.C.S.E)
443/1
AGRICULTURE
Paper1
JULY / AUGUST 2012
Time: 2 Hours
INSTRUCTIONS TO CANDIDATES
• Write your name and Index Number in the spaces provided above.
• Sign and write the date of examination in the space provided above
• This paper consists of THREE section A,B and C.
• Answer ALL the questions in section in sections A and B.
• Answer any two questions from section C.
SECTION A ( 30 MARKS)
Answer all the questions in this section in the spaces provided.
1. a) State three ways by which agriculture contributes to national development. (1 ½ mk)
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b) State two effects of high level of Education and technology on agricultural
production. (1mk)
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2. Name two insect pests that attack sorghum in the field. ( 1mk)
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3. State two conditions when opportunity costs are zero. (1mk) ……………………………………………………………………………………………………….
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4. State four conditions limiting shifting cultivation. (2mks)
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5 a) State three reasons for practicing grafting in citrus production (1/ ½ mk) ……………………………………………………………………………………………………….
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………………………………………………………………………………………………………. b) Give the method used in breaking seed dormancy in the following crop;
i) Calliandra ( ½ mk)
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ii) Rice
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6. Name two ways by which the PH of a soil is raised. (1mk) ……………………………………………………………………………………………………….
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7. State four reasons why organic matter is necessary in the soil (2mks) ……………………………………………………………………………………………………….
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8. State two disadvantages of surface irrigation. (1mk) ……………………………………………………………………………………………………….
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9. State two advantages of mixed pasture. ( 1mk)
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10. Mention four types of soil erosion water. ( 1mk)
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11. State two conditions for maximum efficiently of herbicides. ( 1mk) ……………………………………………………………………………………………………….
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12. State two functions of polythene sheet when used as mulch material. (1mk) ……………………………………………………………………………………………………….
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13. State four principals of cooperative societies. In Kenya (2mk) ……………………………………………………………………………………………………….
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14. Differentiate between coppicing and pinching out. (2mks) ……………………………………………………………………………………………………….
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15. State two sources of nitrogen in the soil for plants. (1mk) ……………………………………………………………………………………………………….
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16. Give two benefits of possessing certificate of land ownership. ( 1mk) ……………………………………………………………………………………………………….
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17. State four ways of improving labour efficiency in the farm. ( 2mks)
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18. State any two benefits of minimum tillage. ( 2mks) ……………………………………………………………………………………………………….
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20. Give one reason why each of the following nursery management practices are carried out .
i) Hardening off (1mk
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ii) Watering before transporting seedlings from the nursery bed. (1mk)
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iii) Hardening in onions (1mk)
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SEC B (20MARKS)
Answer all the questions in this section in its spaces provided.
20. The diagram below shows an experiment set up using soil types A, B and C and observations made after 24 hours.
i) What is the experiment above designed to study? (½ mk)
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ii) Name the three soil types A, B, and C (1 ½ mk)
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iii) What is the characterizes textures of soil types A and C? ( 1mk)
A
C
iv) State how a farmer would improve the structure of soil type A ( ½ mk) …………………..…………………………………………………………………….
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20. Below is a diagram of a bird which is a crop pest.
i) Identify the pest. ( ½ mk) …………………..…………………………………………………………………….
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ii) State three ways by which the bird causes loss in crops (1 ½ mks) …………………..…………………………………………………………………….
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iii) State TWO methods that can be used in the control of the pest. (1mk) …………………..…………………………………………………………………….
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22. Below is a diagram of a tomato plant.
i) Identify the practice illustrated ( ½ mk)
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ii) Describe the procedure followed in spraying the crops with a fungicide in power form, water and a knapsack sprayer. (1 ½ mks)
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iii) Name one fungal diseases that can be controlled in the crop using the procedure above. ( ½ mk) ……..…………………..…………………………………………………………………….
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iv) State two safety measures that shoulder be taken while spraying the crops with a fungicides. (1mk)
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23. A farmer can combine dairy meal and home made fees in feeding dairy cattle. Study the table below answer Questions that following.
Dairy meal (kg) Home made feed ( Kg) Marginal Rate of Substitution
1 48 O
2 39 V
3 32 7
4 27 W
5 23 4
6 21 X
7 20 1
8 19 Y
i) Given the information above, Calculate the marginal rate of substitution and give values of V, W, X, and Y. (2mks) ……..…………………..…………………………………………………………………….
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ii) Given that the price of dairy meal is Ksh 8.00 per kg. and that of home made feeds is Kshs 2/kg, calculate the least cost contribution. (1 ½ mks)
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24. Given that at a price of Ksh 2000 per bag 20 bags of maize are demanded but when the price changes to Kshs 1800 /bag, 22 bags are demanded.
Calculated the Elasticity of demand. ( Show your working) (1 ½ mks)
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ii) What type of elasticity of demand is this in 24 (i) above? ( ½ mk)
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25. The diagram below is a presentation of a cross section through a compost heap.
i) Name the parts labeled O,F,G,H and J (2 ½ mks)
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F……………………………………………………………………………………………...
G……………………………………………………………………………………………..
H……………………………………………………………………………………………
J………………………………………………………………………………………………
ii) Give importance of the parts labeled J, H and G. (1 ½ mk)
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H………………………………………………………………………………………….
G………………………………………………………………………………………….
26. The diagram below illustrates a weed.
i) Identify the weed ( ½ mk)
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ii) State one competitive ability of the weed illustrate above. ( ½ mk) ……..…………………..…………………………………………………………………….
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SECTION C
Answer any two questions from this section in the spaces provided after question 29.
27. a) Explain five factors that influence soil productivity. ( 10mks)
b) Outline five factors that a farmer would consider before deciding on the type of irrigation in crop production.
c) Describe five qualities of the mother plant should be considered when selecting vegetative materials for planting. ( 5mks)
28. a) List seven benefits of using organic mater for mulching. ( 7mks)
b) Describe the field production of Napier grass under the following sub- headings
(i) Planting (3mks)
ii) Fertilizer and manure (3mks)
iii) Utilization (3mks)
c) Describe the procedure followed when transplanting tree seedlings from a bare root nursery bed. ( 4mks)
29. a) Explain four agriculture practices which pollute water. (8mk)
b) Explain eight factors that determine the spacing of a crop. (8mks)
c) State four precautions one should take when harvesting coffee.
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