NECO Agric Science Practical Answers [9th November 2020]

 

 

NECO AGRIC PRACTICAL ANSWERS (VERSION 1)

(1a)
Specimen A – Knapsack sprayer.
Specimen B – Watering Can
Specimen C – Secateurs
Specimen D – Measuring tape

(1b)
(i) They can both be used for the application of liquid fertilizer.
(ii) They are both used for light irrigation.

(1c)
(i) Do not use when it is windy.
(ii) Do not point spray on the direction of persons, animals or food items.
(iii) Do not spray against wind direction.

(1d)
(i) It possesses two short metal handles.
(ii) The two metal blades are joined at a pivot by bolt and nut.

(1e)
[Choose ONLY ONE)
Pruning saw, Sickle, cutlass.

(1f)
Woven Metallic Tape

(1g)
(i) Roll back in its case after use.
(ii) Store in a cool dry place.

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(2a)
Specimen E – sandy soil
Specimen F – clay soil
Specimen G – Loamy soil

(2b)
Specimen E
(i) Grains are separate.
(ii) Consists of coarse and fine particles.

Specimen F
(i) It is hard when drugs and sticky when wet.
(ii) Particles are fine, powdery and smooth when dry.

Specimen G
(i)It is well aerated and can hold water.
(ii)It is dark brown or black in colour.

(2c)
It has a highest proportion of organic matter.

(2d)
Specimen E
(i)Cover cropping.
(ii)Mulching.

Specimen F
(i)Addition of organic matter.
(ii)Application of sandy soil.

(2f)
Maize

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(3a)
H – Ginger
I – Orange fruit
J – Cassava tuber
K – Pineapple

(3b)
H – Biennial crop
I – Perennial crop
J – Annual crop
K – Perennial crop.

(3c)
(i) Source of income.
(ii) It is used in the production of juice.
(iii) It is used to add flavour to dishes.

(3d)
H – Rhizomes.
J – Stem
K – Suckers

(3e)
J – Sugar cane
K – Banana

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NECO AGRIC PRACTICAL ANSWERS (VERSION 2)

(4a)
L – Animal horn.
M – Fish meal.
N – Bone meal.
O – Blood meal.

(4b)
(i) By using dehorning knife.
(ii) By using scoop dehorners.

(4c)
(i) To avoid causing injury to other animals.
(ii) To make it easier to handle animals in yards and crushes.

(4d)
Specimen M
(i) For feeding livestocks.
(ii) Used in the preparation of certain antibiotics.

Specimen N
(i) It serves as dietary supplements.
(ii) It is a source of protein

(4e)
Blood meal

(4f)
(i) It may be a source of disease infection.
(ii) It invites a lot of flies.

(1a)
Specimen A – Knapsack sprayer
Specimen B – Watering can
Specimen C – Secateurs
Specimen D – Measuring tape

(1b)
(i) Both are used to disperse liquid
(ii) They are both operated manually

(1c)
(i) Use protective clothing when spraying
(ii) Do not smoke, eat or drink when spraying
(iii) Do not use when it is windy

(1d)
(i) It has a pivot
(ii) It has two handles

(1e)
Gardening Shears

(1f)
Woven Metallic Tape

(1g)
(i) Keep in cool dry place after use
(ii) Do not drop on the ground
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(2a)
Specimen E – sandy soil
Specimen F – clay soil
Specimen G – Loamy soil

(2b)
Physical properties of E:
(i) It has a weak or no structure
(ii) It has poor water retention properties

Physical properties of F:
(i) It has a strong structure
(ii) It has high water retention properties

Physical properties of G:
(i) It contain humus than sandy soils.
(ii) They have better drainage and infiltration of water and air

(2c)
Loam soils generally contain more nutrients, moisture , and humus than sandy soils.

(2d)
Specimen E
(i) Add at least 2 inches of organic matter each year.
(ii) Grow cover crops or green manures.

Specimen F
(i)Avoid Compaction
(ii)Add organic material.

(2e)
Specimen F – Rice
Specimen G – Maize
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(3a)
Specimen H – Ginger
Specimen I – Orange fruit
Specimen J – Cassava
Specimen K – Pineapple

(3b)
Specimen H – biennial crop
Specimen I – perennial crop
Specimen J – annual crop
Specimen K – perennial crop

(3c)
(i)It is used for medicinal purposes
(ii)It is used for spices in cooking

(3d)
Specimen H; is vegetatively propagated from the rhizome

Specimen J; is propagated through the stem.

Specimen K; is propagated through the suckers.

(3e)
Specimen J – Sugar cane plant
Specimen K – Raspberry
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(4a)
Specimen L – animal horn
Specimen M – fish meal
Specimen N – bone meal
Specimen O – blood meal.

(4b)
(i) knife Dehorning
(ii) Hot-Iron Disbudding.

(4c)
(i) Reduce the risk of injury and bruising to herd mates.
(ii) Decrease risk of injury to farm workers.

(4d)
Specimen M
(i) It provides high protein concentration to livestock
(ii) It also serve as a good source of calcium, phosphorus, and other minerals.

Specimen N
(i) It is a source of protein
(ii) It is a source of calcium phosphorous, vitamin B-12

(4e)
Oyster shell meal

(4f)
(i) It has a total digestible nutrient of just 10%.
(ii) It is extremely deficient in isoleucine.