(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).
|
Size of farm (ha) |
Qty of fertilizer used (bags) | Yield of maize (bags) | Change of Qty of fertilizer |
Change in yield of maize (bags) |
| 2 | 0 | 8 | - | - |
| 2 | 8 | 24 | - | - |
| 2 | 12 | 48 | - | - |
| 2 | 26 | 80 | - | - |
| 2 | 20 | 120 | - | - |
| 2 | 24 | 150 | - | - |
| 2 | 28 | 170 | - | - |
| 2 | 32 | 180 | - | - |
| 2 | 34 | 180 | - | - |
| 2 | 36 | 170 | - | - |
(b) Complete the table above. (c) Draw a graph from the provided data and use it to explain the law of diminishing returns
An agricultural research organisation categorised farmers in village X according to the rate of adoption of new ideas and came up with the following: Innovators 10, Early adopters 15, Late adopters 70, Never adopters 25
(a) Calculate the percentage of early adopters and state the implication of this percentage on the extension system.
(b) Suggest four ways of encouraging the innovators.
(c) State four possible reasons for the high number of late adopters.
(d) State two merits of the print media as a channel for agricultural extension.
(a) State four merits of each of the following: (i) agriculture; (ii) forestry; (iii) wildlife conservation (b) List four non-agricultural uses of land
(a) Describe briefly four types of individual land tenure systems. (b) List four advantages and four disadvantages of the land use act.
(a) Discuss three effects of each of the following factors on crop production: (i) water; (ii) air; (iii) soil microbes. (b) List three edaphic and four climatic factors that affect crop productivity.
