WAEC Agricultural Science 1993 Past Questions

Discuss briefly the ways in which the following factors contribute to the problems of agricultural development in Nigeria: (a) finance; (b) farm input; (c) transportation; (d) storage and processing facilities.

(a) State two functions of a cultivator. (b) Name five tools or implements for each of the following farm processes: (i) land preparation; (ii) planting (iii) harvesting; (iv) crop processing (c) Give four reasons why farmers cultivate small holdings.

(a) What is rock weathering? (b) State four factors that affect formation of soil. (c) Explain briefly four types of chemical weathering.

Describe briefly the effects of the following farming practices on the soil; (a) bush burning; (b) overgrazing; (c) clean clearing; (d) fertilizer application.

State two symptoms and two control measures of the following plant diseases: (a) cassava mosaic; (b) groundnut rosettes; (c) root-knot of okra; (d) bacterial blight of cotton

Discuss briefly the production of tomato under the following headings: (a) climatic and soil requirements; (b) land preparation; (c) nursery practices; (d) planting and spacing; (e) fertilizer application, (f) staking; (g) harvesting

(a) State eight functions of water in livestock management (b) List eight essential mineral elements required in animal nutrition (c) State four functions of the mineral elements in the body of animals. 

(a) Describe four methods of harvesting fish. (b) Discuss briefly four fishery regulations. 

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.