Study and practice Agricultural Science past questions with answers and detailed explanations. Then test your knowledge using our interactive CBT practice platform and prepare confidently for your upcoming examinations.
In crop rotation, deep-rooted crops should follow shallow-rooted crops because deep-rooted crops
Aare resistant to diseases
Bare early-maturing
Cfeed from different soil layers
Dattract different kinds of pests
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Question 432
waec2009
A bag of fertilizer had a ratio of 0:10:0 written on it. This means that the fertilizer contains
A0 kg of nitrogen, 10 kg of potash and 0 kg of phosphate
B0 kg of phosphate, 10 kg of nitrogen and 0 kg of potash
C0 kg of nitrogen, 10 kg of phosphate and 0 kg of potash
D0 kg of potash, 10 kg of phosphate and 0 kg of nitrogen
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Question 433
waec2009
A well fermented and dried coffee seed is said to be
Aparched
Bgraded
Cwinnowed
Dthreshed
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Question 434
waec2009
Bush fallowing is necessitated by
Apopulation increase
Breduction in soil fertility
Ccost consideration
Drural-urban migration
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Question 435
waec2009
Farm surveying is important because it determines
Asoil fertility
Bsize of farmland
Cyield of crops
Dtypes of implement to use
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Question 436
waec2009
Which of the following equipment is not used in farm surveying?
AGunter's chain
Bmeasuring tape
Cranging pole
Dpick axe
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Question 437
waec2009
Mechanization is difficult to practice where the
Aland is fragmented
Bfarmer is wealthy
Cfarm holding is large
Dsoil fertility is low
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Question 438
waec2009
The greatest disadvantage of using a bulldozer in land clearing is that it
Aremoves the fertile top soil along with the vegetation
Bmakes the soil lose its texture
Callows the fast growth of weeds after clearing
Dincreases the incidence of pests
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Question 439
waec2009
The best source of farm power for agricultural production is
Ahuman power
Banimal power
Cmechanical power
Dsolar power
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Question 440
waec2009
The removal of excess water from the sub-soil is known as
Airrigation
Bdrainage
Cevaporations
Ddehydration
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Question 441
waec2009
Which of the following statements indicate advantages of sub-surface irrigation? I. Low operation cost once established II. Does not disturb the movement of implements III. Permits efficient use of water IV. easily floods the field
AI,II and III only
BII,III and IV only
CI,II and IV only
DI,II,III and IV
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Question 442
waec2009
Which of the following fertilizers should be applied for good plant growth after prolonged use of sulphate of ammonia on a neutral soil?
Aammonium nitrate
Blime
Curea
Dsingle superphosphate
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Question 443
waec2009
Controlled burning has the advantage of
Aincreasing the number of soil organisms
Binducing re-growth of pasture grasses
Cincreasing the amount of nutrients in the soil
Dimproving soil structure
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Question 444
waec2009
The atmosphere gains carbon dioxide through the following ways except
Aburning of fuel such as coal and wood
Brespiration by plants and animals
Cphotosynthesis in plants
Ddeath and decay of plants and animals
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Question 445
waec2009
Magnesium deficiency in crops can be corrected by the application of
Adolomite
Blimestone
Cquicklime
Durea
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Question 446
waec2009
It is not advisable to apply fresh farmyard manure because
Aits heat of decomposition may cause scorching of plants
Bsome microorganisms in the manure may die
Cthe manure may increase soil acidity
Dthe manure may increase soil alkalinity
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Question 447
waec2009
Chemical weathering is fastest in
Acool weather
Bhot weather
Chigh altitudes
Dlow altitudes
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Question 448
waec2009
Which of the following rocks is not formed from pre-existing rocks?
Alimestone
Bgranite
Cshale
Dmarble
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Question 449
waec2009
The following processes in soil formation are caused by biotic factors except
Abacterial decomposition of plants
Bsoil mixing and turning by earthworms
Cburrowing of rodents
Dsoil disintegration by dehydration
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Question 450
waec2009
The natural grasslands of West Africa are generally located in the
