WAEC Agricultural Science 2002 Past Questions

(a ) State five objectives each (i) of Farm Settlement Scheme and (ii) Agricultural Development Programme. (b) State roles of cooperative organisations in agricultural production.

(a)List six types of land tenure systems. (b) Discuss five reasons why the government should enforce the land use legislation. 

(a) State five effects. of each of the following practices on crop production: (1) irrigation; (ii) drainage. (b) List four methods of surface irrigation. (c) Give two main reasons why surface drainage is often necessary in crop production.

(a) State three functions of nitrogen in crop plants. (b) Mention four effects of excess soil nitrogen and three effects of nitrogen deficiency on plants. (c) Apart from lightning, state three other ways by which nitrogen is added to the soil? (d) List six soil micro nutrients.

(a) Describe briefly four methods of weed dispersal. (b) Describe three mechanical and three cultural methods of weed control. 

(a) In a tabular form, name one fungal disease, one viral disease and one pest of any four of the following crops: (i) citrus; (ii) banana; (iii) tomato; (iv) yam; (v) groundnut. (b) State six general control measures of diseases of crops.

(a) (i) What is culling? (ii) Give three reasons why culling is practised in livestock management. (b) State three advantages and three disadvantages of each of the following management systems in poultry production: (i) deep litter system; (ii) battery cage system. 

(a) Define the term "disease." (b) State the difference between resistance and susceptibility to diseases. (c) Enumerate four economic importance of animal disease. (d) List three factors which determine the degree of resistance of an animal to a disease. (e) Outline three conditions that may inactivate a pathogenic organism. 

Explain the following terms used in agricultural production: (a) hired labour; (b) fixed capital; (c) working capital; (d) management. 

(a) Explain the term "marketing." (b) State five importance of marketing in agriculture. (c) Mention five marketing functions. (d) In which four ways can the marketing of agricultural produce be encouraged?