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ALLIANCE HIGH SCHOOL
AGRICULTURE
PAPER ONE
PRE- TRIAL EXAM 2016
TIME 2 HRS
NAME ……………………………………….ADM NO…………………………
TEACHER …………………………………..DATE DONE…………………….
SIGNATURE ……………………………….. DATE RETURNED ……………..
INSTRUCTIONS
1. Write your name and admission number
2. Answer all questions in section A and B and two questions ONLY in section C
3. Write your answers on the spaces provided
4. Use English Language
5. Cancelled work will not be marked
6. This paper consist of 9 printed pages
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Answer all questions in the spaces provided
1. State two precautions when handling inoculated seeds. (1 marks)
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State four causes of land fragmentation in Kenya. (2 marks)
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2. Explain the meaning of the following post – harvesting practices carried out in
crops such as beans. ( ½ mark)
i. Dusting ----------------------------------------------------------------------------------------
ii. Threshing --------------------------------------------------------------------------------------
iii. Cleaning ---------------------------------------------------------------------------------------
3. Give four characteristics that a god plant used as green manure should possess.
(2
marks)
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4. State our ways in which chemical kills the weed in the crop filed. (2 marks)
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5. Outline three factors that determine the method of harvesting crops. ( ½ mark)
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6. State three ways in which crop rotation improve soil fertility (1 ½ mark)
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7. State three ways in which primary fillage destroy soil- borne pests (1 ½ marks)
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8. State four ways of improving labour productivity in a tea plantation. (2 marks)
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9. Give four edaphic factors that influence crop production (2 marks)
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10. Differentiate between the term afforestation and reaforestation (1 mark)
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11. Explain the importance of gapping in crop production (1 mark)
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12. State three possible solutions to curb the problem of perishability in horticultural
crops (1 ½ marks)
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13. Give three reasons why an inventory should be updated from time to time
(1½
marks)
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14. a) What is meant by the term joint product as used in production economic?
(1
mark)
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b) List two point – product I crop production. (1 mark)
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15. a) Mention three methods of forage conversation. (1½ marks)
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b) Outline three effects of frequency early defoliation (1½ marks)
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16. List three financial documents. (1½ marks)
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17. Study the following types of vegetable crops.
- Cowpea
- Spring onion
- Pigeon peas
- Pepper
- Tulips
Identify :-
i. Leaf vegetable --------------------------------------- ( ½ mark)
ii. Fruit vegetable --------------------------------------( ½ mark)
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SECTION B (20 MARKS)
Answer all questions I the spaces provided in this section
18. The diagram below the result of an experiment carried out by a form one student. The
student mixed water with sodium carbonate then added in a soil sample after which through
shaking was done and the contents were left to settle on a bench.
Silt and clay particles
Gravel
particles
a) What was the aim of the above experiment? ( ½ mark)
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b) Identify the layers represented by M, N and P. ( ½ mark)
M----------------------------------------------------------------------------------------------------
N-----------------------------------------------------------------------------------------------------
P-----------------------------------------------------------------------------------------------------
c) What was the role of sodium carbonate used in the experiment? ( ½ mark)
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19. The following information was obtained from the records of Mr. Juma’s farm for the year
ended o 31st march 2011.
Particulars kshs
Opening valuation 100,000
Calves 72,000
Hired labour 21,000
Sales of milk 13,000
Sales of cereals 33,000
Rent 9,000
Feed 5,300
Seed 1,700
Fertilizers 4,700
Sales of vegetables 9,300
Sales of poultry 1,800
Sales of fruits 700
Pesticides 1,250.
Depreciation 650
Repair and maintenanace 950
Interest on loans 200
Closing valuation 90,000
a) Using the information given above prepare a profit and loss account for Mr. Jumaa’s
farm for the year ended 31st march. (7 marks)
b) Giving a reason, state whether Mr. Juma’s farm made a profit or loss. ( ½ mark)
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20. Study the following field practice
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a) Identify the practice carried out in the above diagram. (1 mark)
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b) Give four reasons for carrying out the above practices. (2 marks)
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c) Outline two limitations of the above practice. (2 marks)
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21. A farmer wishes to change her enterprises from vegetable production to dairy cattle
rearing. The cost she incurs in growing of vegetables is as follows:-
Weed sh 200
Harvesting sh 300
Fertilizers sh 500
Seeds shs 400
When she changes her enterprises to dairy cattle rearing, she incurs the following:-
Cost of buying cattle shs 5000
Disease shs 200
Salary of milk person shs 2000
Fencing shs 500
The revenue she got when growing vegetable is 10,000.
In dairy production, he revenue she gets from milk sales is sh 15,000 and manure sales
shs 1,000.
Draw up the partial budget and indicate the effect of the change. (show your working)
(5
marks)
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SECTION C
Answer any two questions in the spaces provided
22. a) Describe the production of beans under the following sub – topics:
i. Planting (2 marks)
ii. Field management practices (4 marks).
iii. Harvesting (2 marks)
b) Outline the safety measures in the use of chemicals to minimize environmental
pollution. (8 marks)
c) Explain four qualities of a good silage. (4 marks)
23. a) Explain five biological factors that influence soil formation. (10 marks)
b) Describe the causes of crop disease (5 marks)
c) Describe the field production of tea under frame formation by pegging method.
(5
marks)
24. a) Describe the procedure of harvesting sugarcane ( 5 marks)
b) Explain how farmers overcome risks and uncertainties in farm business
(7
marks)
c) Use the information given I the table below to answer the questions that follow.
Fertilizers Potato yields (bags ) Marginal product (bag)
inputs (units)
0 50 -
1 62 12
2 66 4
3 68 2
4 69 1
5 69 0
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The cost of fertilizers is shs. 320 per unit and the price of potatoes is shs 200 per bag
i. At what point of fertilizer application should the farmer be advised to stop
investing in potatoes?
(Show you work) (5 marks)
ii. Give a reason for your answer in (i) above (2 marks)
iii. At what level is net revenue highest? (1 mark)
