PART A
Answer all the questions in this part. For question 1 circle the letter corresponding to the best answer. For questions 2 to 5 write all answers in the spaces provided.
1. a) Which one of the following is a result of magnesium deficiency in cattle?
A. Milk fever
B. Retarded growth
C. Night blindness
D. Grass retainy.
b) Which of the following cotton pests can be controlled by growing hairy cotton varieties?
A. Cotton strainer
B. American boll worm
C. Spiny boll worm
D. Jassid
c) Which one of the following is a likely response if one price of a commodity is set below equilibrium price?
A. Buyers will become reluctant to buy the commodity.
B. There will be an excess of the commodity on the market.
C. Sellers will hoard the commodity and hike the price.
D. The price o the commodity will continue to fall.
d) One advantage of using a disc plough is that it
A. Covers trash properly
B. Can easily roll over obstacles
C. Is light
D. Produces a fine tilt.
2. a) What is milk let down?
b) Give four conditions that encourage milk let down in a cow.
3. Give four effects of excessive application of nitrogen fertilizers on crop.
4. Figure 1 below shows the plough of a primary tillage implement.
a) Name the parts labelled (i) - (iv).
(I) ..............................................................................................................................
(II) ..............................................................................................................................
(III) ..............................................................................................................................
(IV) ...............................................................................................................................
b) Give one functions of each of the parts.
(I) ...............................................................................................................................
(II) ...............................................................................................................................
(III) ................................................................................................................................
(IV) .................................................................................................................................
5. Give three factors that may affect the demand for a commodity.
PART B
Answer four questions including at least one from each section. Write all your answers in the answer booklet provided.
SECTION 1
MECHANISATION AND FARM MANAGEMENT
6. a) What is a profit and loss account?
b) Using the information given below, below a profit and loss account.
Shs
Closing valuation 4,400,000
Opening valuation 2,300,000
Sales and receipts:
Vegetable sales 1,000,000
Rent receivable 595,000
Milk sales 850,000
Increase in machine value 205,000
Crops produce sales 1,800,000
Purchases and expenses:
Depreciation of machines 150,000
Veterinary costs 160,000
Pesticides 80,000
Fertilizers 260,000
Interest payable 100,000
Wages 1,500,000
c) Using the profit and loss account drawn in (b) determine the profit or loss the farm has made.
7. a) What are the five reasons for draining land.
b) (i) Describe any two methods of draining land.
(ii) State any five disadvantages of using each method described in (b)(i) above.
8. (a) Explain the importance of tilling land.
b) What are the five advantages of using a disc plough over a mould board plough in tilling land?
SECTION II
CROP PRODUCTION
9. a) Outline the desirable characteristics that a green manure crop should have.
b) What problems are associated with the use of green manures?
10. a) Name and describe four different types of soils erosion.
b) Explain any four factors that influence the rate of soil erosion.
11. Describe the practices you would carry out in the growing of a maize crop.
SECTION III
ANIMAL PRODUCTION
12. a) Describe the procedure to be followed in preparing hides and skins for sale.
b) What are the ten factors that affect the quality of hides and skins?
13. Outline ten factors which affect the quality and quantity of milk in cattle.
14. a) Give four differences between roughages and concentrates.
b) A farmer has a maize meal containing 8% protein and soya bean meal containing 43% protein. Using an appropriate method, calculate the proportion in which he will mix the two ingredients to make mixture of 15% protein.
c) Describe ways in which a farmer should take care of sick animals on a farm.