(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]
(a)List three edaphic factor that influence crop growth. [3marks]
(b) Explain the following terms as used in soil and water conservation: (i)gravitational water(ii)hygroscopic water [4marks]
(c) State two deficiency symptoms of each of the following nutrient elements in crops:(i)nitrogen; (ii) phosphorus; (iii)potassium [6marks]
(d) State three benefits derived from draining farmlands. [3marks]
(a) Define the term nursery as used in crop production[2marks]
(b) Give three reasons for establishing a nursery in crop production.[3marks]
(c) Mention three characteristics of weeds that make them difficult to control [3marks]
(d) List two methods of controlling weeds.[2marks]
(e)State three ways by which diseases are spread among crops [3marks]
(f) Mention three effects of diseases on crops [3marks]
