Discuss the production of yam under the following headings : (a) materials of propagation; (b) soil requirement; (c) land preparation; (d) planting and spacing; (e) cultural practices (f) three major pests and their control.

(a) Name five breeds each of cattle and pig that can be found in Nigeria (b) State six general characteristics rabbits

a) Name the causative agent of each of the following livestock diseases: (i) food and mouth; (ii) rinderpest; Newcastle (b) Name three animals that can be affected by each of the diseases listed in (a). (c) State fo symptoms of foot and mouth disease and three symptoms of each for rinderpest and Newcastle diseases

Discuss eight problems which an agricultural extension worker can face in the discharge of his duties.

List and discuss four functions of a farm manager in a farm business.