Observation

(a) Many candidates were unable to identify the sprinkler irrigation system depicted with majority of Although many candidates were able to identify the pick axe, they could not identify the seed box and rhumbus correctly. Thus, their performance in questions concerning the seed box and rhumbus was poor.
The expected answers include:
2. (a) (i) Identification of diagrams
I - Seed box/seed tray
II - Pick axe/digger
III - Rhumbus

(ii) Uses of diagrams I, II and III in agriculture
I (Seed box)
- Used for raising seedlings of crops
- For carrying seeds from the nursery to the field

II (Pick axe/digger)
For
- removal of roots of trees/stumping
- tilling very hard soils
- digging
- digging soil for farm building construction/foundation

III (Rhumbus)
- For storing grains
(iii) Purpose of holes at the bottom of diagram I (Seed box)
- To allow excess water in the box to drain/ prevent water logging

 

(b) Maintenance practices of diagram II (Pick axe)
- Clean/wash and dry after use
- Sharpen blade regularly
- Keep away from rain to avoid rusting of metal parts
- Store in termite-free area
- Keep in cool, dry place
- Replace worn out parts
- Paint/grease/oil metal parts      

 

  (c) Other structures that can serve the same purpose as diagram III (Rhumbus) on the farm
- Crib
- Silo
- Bin
- Drum      

 

  (d) Benefits of using diagram III (Rhumbus) on the farm
- Prevents grain spoilage for a long time (years)
- Protects grains from pest attack
- Facilitates fumigation/disinfestation of freshly stored grains
- Stores crops for the time of scarcity
- Relatively cheaper to construct than other storage structures