Welcome to “Naijaclass Academy” For Neco 2024 Agricultural Science Practical Answer (June/July Exam)

Date: Tuesday, 25th June 2024
Agricultural Science (Practical) 10:00am – 11:30am

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AGRIC PRACTICAL

(1a)
Specimen A
(PICK ANY TWO)
(i) It is used to remove weeds from flower beds and small garden areas.
(ii) It helps in breaking up compact soil to improve aeration and water penetration.
(iii) Useful for mixing soil with compost or fertilizers in small garden areas.
(iv) It helps in lifting and transplanting young plants without damaging the roots.

Specimen B
(PICK ANY TWO)
(i) It Used for digging and turning over soil, especially in larger garden areas.
(ii) It helps to break up soil clumps and improve soil aeration.
(iii) Effective for removing stones, weeds, and other debris from the soil.
(iv) Useful for mixing compost or manure into the soil to enrich it.

Specimen C
(PICK ANY TWO)
(i) Ideal for digging small holes for planting bulbs, seeds, and seedlings.
(ii) Can be used for removing small weeds in garden beds.
(iii) Useful for transplanting small plants and flowers.
(iv) Helps in mixing soil with fertilizers or compost in small areas.

Specimen D
(PICK ANY TWO)
(i) It is used to spray pesticides for pest control on crops.
(ii) Helps in spraying herbicides to control weeds.
(iii) Useful for foliar feeding by spraying liquid fertilizers.
(iv) Can be used to water plants in areas where irrigation is not available.

(1b)
(PICK ANY ONE)
(PICK ANY ONE)
(i) Specimen A has three tines while Specimen B has four tines.
(ii) Specimen A has a short handle while Specimen B has a long handle.
(iii) Specimen A has a narrow blade while Specimen B has a wide blade.

(1c)
(PICK ANY ONE)
(i) Spade
(ii) Hoe
(iii) Shovel

(1d)
(i) Regularly clean after each use to prevent rust and soil build-up.
(ii) Keep the edges sharp to ensure efficient cutting and digging.

(1e)
(PICK ANY TWO)
(i) Gloves
(ii) Safety Goggles
(iii) Face mask

 

(2a)

(PICK ANY TWO)
(i) It has higher nutrient content
(ii) It has faster decomposition rate
(iii) It is easier to handle and apply
(iv) It is less likely to contain weed seeds

(2b)
(PICK ONE)
(i) May burn or scorch young seedlings
(ii) Can spread diseases to seedlings
(iii) May contain high levels of ammonia, which can be harmful to seedlings

(2c)
(PICK ANY THREE)
(i) It adds organic matter and improves soil structure
(ii) It increases soil fertility and nutrient content
(iii) It supports beneficial microbial activity
(iv) It helps retain soil moisture
(v) It reduces soil erosion

(2d)
(PICK ANY THREE)
(i) Soil acidification
(ii) Nutrient imbalance and depletion
(iii) Reduced soil fertility and microbial activity
(iv) Increased soil salinity
(v) Groundwater contamination

(2e)
(PICK ANY THREE)
(i) Broadcasting
(ii) Band placement
(iii) Side dressing
(iv) Foliar application
(v) Soil injection

(2f)
(PICK ANY THREE)
(i) Calcium nitrate
(ii) Calcium carbonate
(iii) Calcium sulfate
(iv) Calcium oxide
(v) Calcium hydroxide

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(3a)
=Specimen I (Onion Bulb): Allium cepa
=Specimen J (Yam Tuber): Dioscorea spp. ( various species)
=Specimen K (Cassava Tuber): Manihot esculenta
=Specimen L (Ginger): Zingiber officinale

(3b)
=Specimen I (Onion bulb); Bulb division
= Specimen J (Yam Tuber): Stem cuttings or setts
= Specimen K (Cassava Tuber): Stem cuttings
= Specimen L (Ginger): Rhizome cuttings

(3c)
(i) Yam beetles
(ii) Yam nematodes

(3d)
(i) Peeling and grating the tubers
(ii) Fermenting the grated cassava for 2-3 days
(iii) Frying the fermented cassava to produce garri

(3e)
Onion (Specimen I): Biennial plant (completes its life cycle in two years)

(3f)
It is used to treat various ailments such as nausea and digestive issues.

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(4a)
N:
(PICK ANY ONE)
(i) Cattle
(ii) Sheep
(iii) Goat

O:
(PICK ANY ONE)
(i) Pig
(ii) Sheep
(iii) Goat

P:
(PICK ANY ONE)
(i) Dog
(ii) Cattle
(iii) Horse
(iv) Sheep

(4b)
(PICK ANY THREE)
(i) Regular deworming of livestock.
(ii) Maintaining cleanliness and hygiene in animal shelters.
(iii) Rotating grazing areas to prevent contamination.
(iv) Proper disposal of animal feces.
(v) Quarantining new animals before introducing them to the herd.
(vi) Use of appropriate insecticides and antiparasitic treatments.

(4c)
(PICK ANY THREE)
(i) Refrigeration
(ii) Smoking
(iii) Canning
(iv) Salting
(v) Freezing

(4d)
(PICK ANY TWO)
(i) N has a head(scolex) with suckers or hooks while O does not have a specialized head structure.
(ii) N is flat and segmented while O is cylindrical and non-segmented.
(iii) N has both male and female reproductive organs in each segment while O has separate male and female organisms.

(4e)
(PICK ANY TWO)
(i) Tick-borne fever
(ii) Tick paralysis
(iii) Anaplasmosis
(iv) Bovine anaplasmosis
(v) Cowdriosis