NECO 2026 AGRICULTURAL SCIENCE ANSWERS (ALT. PRACTICAL)

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(1a)
A – Wheelbarrow
B – Garden Fork
C – Shears

(1b)
(i) Has one wheel at the front.
(ii) Has two handles for pushing or pulling.
(iii) Has a metal tray/container for carrying loads.

(1c)
(i) Turning or loosening the soil.
(ii) Mixing manure or compost with the soil.

(1d)
(i) Clean the tool after use.
(ii) Store it in a dry place to prevent rusting.

(1e)
(i) Pruning trees and shrubs.
(ii) Trimming hedges or cutting grasses.

(1f)
A – Head pan
B – Hoe
C – Cutlass
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(2a)
D – Inorganic fertilizer
E – Organic fertilizer

(2b)
(i) Scorching (burning) of crops.
(ii) Increases soil acidity.
(iii) Leaching/loss of nutrients, leading to environmental pollution.

(2c)
(i) Yellowing of older leaves.
(ii) Stunted or poor plant growth.

(2d)
To promote the growth of plankton

(2e)
(i) Adds organic matter to the soil.
(ii) Improves soil structure and water-holding capacity.
(iii) Releases nutrients gradually for longer-lasting effects.

(2f)
(i) Apply well-decomposed manure.
(ii) Avoid excessive application.

(2g)
(i) Poultry droppings.
(ii) Compost manure.
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(3a)
F – Dioscorea rotundata (Yam)
G – Arachis hypogaea (Groundnut)

(3b)
(i) Weeding regularly.
(ii) Staking the yam vines.
(iii) Mulching the heaps or ridges.

(3c)
(i) Production of groundnut oil.
(ii) Manufacture of margarine.
(iii) Production of soap.

(3d)
Feeds on and destroys crops/seeds, reducing yield.

(3e)
(i) Setting traps.
(ii) Using rodenticides (rat poison).
(iii) Keeping the farm and store clean to eliminate hiding places.
(iv) Blocking rat holes/burrows and entry points.

(3f)
F – Yam mosaic disease.
G – Groundnut rosette disease.
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(4a)
I – Animal horn
J – Oyster shell
K – Maize cob

(4b)
(i) Dehorning.
(ii) Disbudding.
(iii) Using a hot iron or chemical dehorning method to destroy the horn-producing tissue.

(4c)
(i) To prevent injuries to other animals.
(ii) To reduce injuries to the farmer or handlers.
(iii) To make handling and transportation of animals easier.

(4d)
J;
(i) Supplies calcium for strong bones and teeth.
(ii) Improves eggshell formation in laying birds.

K;
(i) Provides fibre that aids digestion.
(ii) Adds bulk to livestock feed.

(4e)
J – Rickets (weak bones)
K – Poor growth/emaciation due to energy deficiency
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