Question 3
(a) Using the table below, classify the following crops based on their life cycle.
|
Crop |
Classification based on life cycle |
Mango |
|
Rice |
|
Groundnut |
|
Cotton |
|
Pepper |
|
Soya bean |
|
Oil palm |
|
Yam |
|
Tomato |
|
Rubber |
|
Ginger |
|
Cocoa |
|
Cowpea |
|
Carrot |
|
(7 marks)
(b) List four components of a typical soil with their percentage volume.
Soil component |
Percentage volume |
(i) |
|
(ii) |
|
(iii) |
|
(iv) |
|
(8 marks)
(c) State three methods of applying inorganic fertilizers to the soil.
(3 marks)
Observation
-
Question 3 was the most popular question among candidates and performance was impressive. However, some candidates were unable to spell correctly ‘annual’ and ‘perennial’ as classes of crops while others wrote ‘living organisms’ instead of ‘organic matter’ as a soil component, thereby losing some marks.
The expected answers include:
3. (a) Classification of crops based on their life cycle
Crop |
Classification based on life cycle |
Mango |
Perennial |
Rice |
Annual |
Groundnut |
Annual |
Cotton |
Annual |
Pepper |
Annual |
Soya bean |
Annual |
Oil palm |
Perennial |
Yam |
Annual |
Tomato |
Annual |
Rubber |
Perennial |
Ginger |
Annual |
Cocoa |
Perennial |
Cowpea |
Annual |
Carrot |
Annual |
(b) Components of a typical soil with their percentage volume
Soil component |
Percentage volume |
Mineral matter |
45% |
Water |
25% |
Air |
25% |
Organic matter |
5% |
(c) Methods of applying inorganic fertilizers to the soil
- Broadcasting - Ring method
- Drilling - Top dressing
- Row/band/side placement
- Foliar application/spraying of liquid fertilizer