Explain eight roles of agricultural extension in the development of agriculture in Nigeria

(a) Explain the meaning of each of the following terms in relation to agricultural practices: (i) appreciation; (ii) depreciation: (iii) salvage value.

(b) A fiat tractor was purchased by a farmer in 1978 for N12,000.00. In 1987, the tractor was sold off for N3.000.00 when it was no longer economical to maintain it. Calculate the: (i) salvage value of the tractor; (ii) total depreciation; (iii) annual depreciation; (iv) appreciation.

(a) Define the term land tenure system and give four examples. (b) (i)Discuss briefly Land Use Decree (ii) State two advantages and two disadvantages of the decree

(a) What is farm surveying? (b) (i) List six surveying instruments. (ii) Write short notes on any four surveying instruments listed in (i)

(a) Define the term irrigation. (b) List six sources of water for irrigation- (c) Give three reasons why irrigation schemes are necessary in Nigeria. (d) State two similarities and three differences between sprinkler and surface irrigation