NECO GCE 2022 - AGRIC PRACTICAL  ANSWER


(1a)
A - Knapsack sprayer
B - Watering can

(1b)
I - Cover
III - Extension pipe
IV - Rose

(1c)
=A=
(i) It is used for the application of plant hormones
(ii) It is used to control insects through the use of insecticides

=B=
(i) It is used for the application of liquid fertilizers
(ii) Application of water to seedlings in the nursery or vegetable beds

(1d)
(i) Do not spray on a windy day
(ii) Do not spray on a rainy day
(iii) Blow the blocked nozzle with mouth when spraying

(1e)
(i) Wash and keep dry or clean after use to prevent rusting
(ii) Store or hang upside down

(1f)
Both are used for spraying

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(2a)
Experiment to show the texture of various soil particles

(2b)
(i) Pour the soil into the glass jar or beaker
(ii) Add water into the soil in the glass jar
(iii) Shake the mixture
(iv) Allow the soil particles to settle based on their texture

(2c)
(i) It will be sticky
(ii) It will form mounds

(2d)
(i) They are added
(ii) They have low water retention capacity

(2e)
(i) Soil IV has a smaller size compared to Soil VI
(ii) Soil IV can retain more water than soil VI

(2f)
(i) It is used to evaluate the ability of soil to supply minerals
(ii) It can be used to determine the type of crop to be grown on a farmland.

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(3a)
(i) Tuber of yam
(ii) Onion
(iii) Rhizome

(3b)
D - Dioscorea alata
E - Allium cepa
F - Dioscorea

(3c)
I - stem
II - root
III - sucker

(3d)
(CHOOSE ANY TWO)
(i) crop rotation
(ii) terracing
(iii) Contour ploughing
(iv) bush fallowing

(3e)
(CHOOSE ANY TWO)
(i) viruses
(ii) nematodes
(iii) insects
(iv) Lesion
(v) termites

(3f)
(CHOOSE ANY TWO)
(i) Dry rot
(ii) Leaf spot
(iii) Storage rot
(iv) yellow disease
(v) Bacterial wilt

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(4a)
I - Liver
II - Stomach
V - Duodenum
VI - Small intestine

(4b)
Gall stone

(4c)
Mineral material

(4d)
III - Pepsin
IV - Amylase
V - Lipase
VI - Erepsin

(4e)
I - Peptones
II - Fatty acids and glycerol

(4f)
It serves as reservoir of food

(4g)
II dies not produce enzymes while part IV produce enzymes