Question

4(a) Complete the table below.
Crop | Botanical name | Classification based on use | Method of propagation
Onion | ? | ? | ?
Ginger | ? | ? | ?
Jute | ? | ? | ?

(b) A poultry farmer plans to rear broilers in a deep litter house measuring 36 m long and 10 m wide. If a floor space of 0.36 m² per adult chicken is recommended for broiler production, calculate the number of broilers that the farmer can rear.
(c) State five advantages of introducing legumes in a pasture.

Accepted Answer

(a) Completed table:
Onion — Botanical name: Allium cepa; Classification: Spices; Propagation: Through bulbs
Ginger — Botanical name: Zingiber officinale; Classification: Spices; Propagation: Through rhizome
Jute — Botanical name: Corchorus spp.; Classification: Fibre; Propagation: Through seeds

(b) Total floor area of the litter house = 36m × 10m = 360 m². Since a floor space of 0.36 m² is required per chicken: Number of broilers = 360 ÷ 0.36 = 1,000 broilers.

(c) Advantages of introducing legumes in a pasture:
- Legumes have a higher protein content than grasses
- They improve digestibility
- They improve palatability
- They offer rich amounts of calcium and minerals
- They have a nitrogen-fixing ability (improving soil fertility)

WAEC Agricultural Science 2022 Theory — Question 4

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