WAEC 2018/19 MAY/JUNE AGRIC SCIENCE OBJECTIVE AND THEORY, QUESTIONS and ANSWERS
*AGRICULTURE SCIENCE ESSAY*

AGRIC OBJ:
1-10: ACCADBDDBB
11-20: DDAABACBBA
21-30: CDCCADDDBA
31-40: BDDAACDDCD
41-50: CCBACBBBCC

(1ai)
Basic Ammenities:
-It makes able bodied me to migrate from rural to urban areas in search of job
-Poor processing facilities for farm produce
-Shortage of water for irrigation purposes for all season cropping
-Poor health services reduces the productivity of farmers

(1aii)
Farm inputs:
-Available farm inputs are of inferior quality,outdated and crude
-Farm inputs like chemicals,fertilizers,tools and implements are grossly inadequate
-Modern farm inputs are not produced in Nigeria
-Farm inputs are expensive to buy and maintain

(1bi)
Tractor:
-Used for drawing farm implements like plough,harrows,ridgers etc
-It has hydraulic control system which aids the lifting of coupled implements
-It can be used to carry harvested crops or other farm products from the farm to the market

(1bii)
Buldozzer:
-For bush clearing
-For felling trees and stumps
-For levelling ground

(1c)
-Service at regular interval
-Replace worn out or weld broken parts
-Adhere strictly to manual or manufacturer’s instruction
-Routine and regular changing of oil
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2c)
Adult fluke lay eggs that are passed out onto pasture in the faeces. the egg, hatches and migrates in thin films of moisture, actively seeking the snail host. Within the snail they undergo two further developmental stages, including multiplication, eventually becoming infective cercariae, which emerge from the snail when the temperature and moisture levels are suitable. The cercariae migrate onto wet herbage, encystingas metacercariae, the highly resilient infective stage of the liver fluke. Following ingestion, the young flukes migrate to the liver, through which they tunnel, causing considerable tissue damage. The infection is patent about 10-12 weeks after the metacercariae are ingested. The whole cycle takes 18-20 weeks.

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3a)
i.Soip requirement:This involves characterizing the soils in a given area for specific Land use type, it help to require or develope kf land use on the environment

ii.Land Preparation:This involves in plowing and harrowing of the field twice using a tractor or animal drawn plow and harrow, you can do this operation when there is enough soil moisture

iii.Propagation: Food crops could be planted either by seed or stem.

(3bi) Bacteria (3bii) Bird (3biii) Bloody faeces (3biv) Proper hygiene (3bv) Bacteria (3bvi) Cattle (3bvii) profuse diarrhoea (3bviii) Proper hygiene

……Solving OBJ now
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4a)
Land tenure can be defined as the manner in which a party holds or occupies an area of land.

4b)
A weed may be defined as any plant or vegetation that interferes with the objectives of farming or forestry, such as growing crops, grazing animals or cultivating forest plantations.

4ci)
Virus

4cii)
It is transmitted by aphid Aphis craccivora.

4ciii)
i)It forms green and yellow colour in the plants
ii)Distortion and stunting of the plants.

4civ)
i)Use of insecticide
ii)Uprooting affected plants

4di)
i)Land is Permanent
ii)Land is a Primary Factor of Production
iii)Land is a Passive Factor of Production
iv)Land is Immovable

4dii)
i)Man Produces Capital
ii)Capital is a Passive Factor of Production
iii)Capital is a Produced
Means of Production
iv)It is variable
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(5a)
Colostrum is the first milk produced by the farm animals which are rich in proteins, vitamins, and they are used to feed new born farm animals.

(5b)
Diagram

(5c)
(i) 1
(ii) 3
(iii) 11
(iv) 28
(v) 40
(vi) 8
(vii) 1
(viii) 0

5b)
(i) Calcium
(ii) Potassium

(5c)
(i) They help in enegry production
(ii) They enhances healthy bone and teeth
(iii) They help in nerve and muscle function
(iv) They provide strong immune for the body

(5di)
Inflammation of the teat

(5dii)
– Use of germicides
– Removal of causative agents

(5div)
Rinder pest

(5dv)
Immunization by vaccine combined with
quarantine

(5dvi)
Use strict biosecurity measures for animals,
animal
products.

(5dvii)
Unusually watery faeces that are yellowish-
green in colour

(5dviii)
Use of vaccination
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6a)
i.By washing of the feeders and drinkers regularly
ii.Admistration of vaccine and medication to birds
iii.Fumigation and proper sanitation should be done before arrival of the bird
iv.Provision of medication and vaccination

6b)
-It prevents secondary infection caused by horn injuries
-It creates more space for animals
-It prevents injuries to the body of other animals
-It makes it safer during vaccination or deworming of animals

6c)
i.Harvesting
ii.Packaging and Packing
iii.Transport
iv.Advertising
V.Food Processing

6d)
-Inadequate for land tenure system
-inadequate finance and credit facilities
-poor marketing system
-inadequate farm input

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