(a) Distinguish between the terms loan and subsidy as used in agricultural financing. (2 marks)
(b)(i) Define the term supply. (2 marks)
(ii) Use the information in the supply schedule below to draw a supply curve. (3 marks)
| Price of Cocoa (Le) | Supply of Cocoa (tonne) |
| 10,000 | 450 |
| 15,000 | 550 |
| 20,000 | 700 |
| 25,000 | 1000 |
| 30,000 | 1,700 |
(iii) Use the supply curve drawn to explain the relationship between supply and price. (2 marks)
(c) State two advantages and two disadvantages of using farm and home visits as a teaching method in agricultural extension work. (4 marks)
(d) Mention three characteristics of agricultural produce in relation to marketing (3 marks)
(a) State the law of diminishing returns in agricultural production. (2 marks)
(b) The table below shows the relationship between quantities of fertilizers used and the corresponding yields of sorghum.
| Quantity of fertilizer (Bags) | Sorghum yield (kg) |
| 0 | 8 |
| 6 | 30 |
| 12 | 50 |
| 18 | 90 |
| 24 | 140 |
| 28 | 170 |
| 32 | 190 |
| 36 | 200 |
| 40 | 200 |
| 46 | 190 |
(i) Use the table to draw an input-output graph (3 marks)
(ii) Explain the relationships between fertilizer input and sorghum yield. (2 marks)
(c) Enumerate four functions of an agricultural extension agent. (4 marks)
(d) State five benefits of commodity boards in the marketing of agricultural produce in West Africa. (5 marks)
(a) State four benefits of agriculture to the economy of West African countries. [4marks]
{b). Enumerate four functions of agro-service centres in your country [4marks]
(c) Outline four routine tractor maintenance practices. [4marks]
(d) State two functions of each of the following parts of the farm tractor (i) three-point linkage (ii)hydraulic lever[4marks]
(a) Explain the term farm mechanization [2marks]
(b) Mention three advantages and three disadvantages of farm mechanization. [6marks]
(c) Give two merits of the use of draught animals in farm operations. [2marks]
(d) Outline three roles of science and technology in agricultural development under the following headings. (i)pest and disease contlrol; (ii)meteorology and climatology. [6marks]
(a) Mention two sources of irrigation water [2marks]
(b)Enumeratoin two advantages and two disadvanteges of irrigating farmlands [4marks]
(c)List two ways by which the soil loses nutrients. [2marks]
(d)Give two reasons for manuring in crop production [2marks]
(e)State two ways by which each of the following envrionmental factors affect agricultural production: (i) temperature: (ii) soil micro-organisms; (iii) wind. [6marks]
