WAEC Agricultural Science 2009 Theory question 101

Theory question 101

Farming Systems

(a)(i) What is an agricultural system? (ii) List five agricultural systems practised in West Africa.
(b) State four ways in which non-governmental organisations contribute to agricultural production.
(c) Give one function of each of the following components of an incubator: (i) counter; (ii) thermostat; (iii) hygrometer; (iv) egg tray; (v) heater.

Show the model answer
Model answer

(a)(i) A method of farming that a community has developed to get the best returns from its land and animals for food, clothing and income while keeping the soil productive.
(ii) Any five: shifting cultivation; bush fallowing; mixed farming; mixed cropping; monocropping; crop rotation; pastoral/nomadic farming; ranching; taungya; agro-forestry; alley cropping; ley farming.
(b) Any four: fund research into improved crop varieties and livestock breeds; provide extension services and training; give loans, grants or inputs to farmers; build rural infrastructure (water, roads, health centres); promote pest and disease control; organise farmers into co-operatives.
(c)(i) Counter: records the number of days of incubation (or eggs/turns).
(ii) Thermostat: keeps the temperature at the set level.
(iii) Hygrometer: measures the humidity inside.
(iv) Egg tray: holds the eggs in position.
(v) Heater: supplies the heat (warmth) for incubation.

Explanation

Give clearly separate points; one function per incubator part is enough.