(a) State three functions of a farm manager. [3 marks]
(b) Explain the following terms as used in agricultural economics: (i) appreciation (ii) salvage value (iii) farm budget (iv) farm inventory [8 marks]
(c) State five qualities of a good agricultural extension agent. [5 marks]
(a)(i) State the law of diminishing returns [2 marks}
(ii) Explain the main cause of diminishing returns in agricultural production. [2 marks]
(b) A commercial farmer bought a second hand combine harvester for N100,000.00 in 1990, and sold it for N30,000.00 in 2000. For the combine harvester (i) salvage value [1 marks]
(ii) total depreciation [2 marks]
(iii) annual depreciation [2 marks]
(c) List seven problems of agricultural extension services in West Africa. [7 marks]
(a) State three ways in which science and technology have contributed to agricultural
development through each of the following:
(i) Crop protection;
(ii) Climatology and meteorology. [6 marks]
(b) Give two functions of each of the following farm machines and implements:
(i) bulldozer;
(ii) combine harvester;
(iii) tractor;
(iv) sprayer;
(v) planter. - [10 marks]
(a) In a tabular form, list ten differences between subsistence agriculture and commercial agriculture. [10marks]
(b) State one advantage and one disadvantage of the following sources of farm power:
(i) wind;
(ii) internal combustion engine;
(iii) electricity. [6 marks]
(a) What is soil consistency?
(b) Explain how each of the following soil properties influences crop growth:
(i) soil texture; [2 marks]
(ii) soil pH. [4 marks]
(c) (i) List four methods by which soil fertility could be maintained. [2 marks]
(ii) Explain two ways in which each of the methods listed in 3(c)(i) contributes
to the maintenance of soil fertility. [8 marks]
