Agricultural Science Past Questions and Answers

Discuss briefly: (a) Temperature; (b) Relative humidity; (c) Light; in relation to poultry production and state two ways of controlling the effect of each.

(a) Write short notes on the following systems of breeding: (i) In-breeding; (ii) Line-breeding; (iii) Cross-breeding<br/>(b) State three methods of collecting semen from a proven male for use in artificial insemination.

(a) State the law of diminishing returns as it applies to agricultural production. [2 marks] Study the table below and use it to answer questions (b) and (c).<br/><table class='tbn'><tbody><tr><td> Size of farm (ha) </td><td> Qty of fertilizer used (bags) </td><td> Yield of maize (bags) </td><td> Change of Qty of fertilizer </td><td> Change in yield of maize (bags) </td></tr><tr><td> 2 </td><td> 0 </td><td> 8 </td><td> - </td><td> - </td></tr><tr><td> 2 </td><td> 8 </td><td> 24 </td><td> - </td><td> - </td></tr><tr><td> 2 </td><td> 12 </td><td> 48 </td><td> - </td><td> - </td></tr><tr><td> 2 </td><td> 26 </td><td> 80 </td><td> - </td><td> - </td></tr><tr><td> 2 </td><td> 20 </td><td> 120 </td><td> - </td><td> - </td></tr><tr><td> 2 </td><td> 24 </td><td> 150 </td><td> - </td><td> - </td></tr><tr><td> 2 </td><td> 28 </td><td> 170 </td><td> - </td><td> - </td></tr><tr><td> 2 </td><td> 32 </td><td> 180 </td><td> - </td><td> - </td></tr><tr><td> 2 </td><td> 34 </td><td> 180 </td><td> - </td><td> - </td></tr><tr><td> 2 </td><td> 36 </td><td> 170 </td><td> - </td><td> - </td></tr></tbody></table><br/><br/><br/> <br/>(b) Complete the table above. (c) Draw a graph from the provided data and use it to explain the law of diminishing returns<br/>

Which of the following occupations is not associated with agriculture?

Which of the following occupations is not associated with agriculture?