Question 1 of 20 2,683 total questions
Which of the following fertilizers should be applied for good plant growth after prolonged use of sulphate of ammonia on a neutral soil?
A ammonium nitrate
B lime
C urea
D single superphosphate
Controlled burning has the advantage of
A increasing the number of soil organisms
B inducing re-growth of pasture grasses
C increasing the amount of nutrients in the soil
D improving soil structure
The atmosphere gains carbon dioxide through the following ways except
A burning of fuel such as coal and wood
B respiration by plants and animals
C photosynthesis in plants
D death and decay of plants and animals
Magnesium deficiency in crops can be corrected by the application of
A dolomite
B limestone
C quicklime
D urea
It is not advisable to apply fresh farmyard manure because
A its heat of decomposition may cause scorching of plants
B some microorganisms in the manure may die
C the manure may increase soil acidity
D the manure may increase soil alkalinity
Chemical weathering is fastest in
A cool weather
B hot weather
C high altitudes
D low altitudes
Which of the following rocks is not formed from pre-existing rocks?
A limestone
B granite
C shale
D marble
The following processes in soil formation are caused by biotic factors except
A bacterial decomposition of plants
B soil mixing and turning by earthworms
C burrowing of rodents
D soil disintegration by dehydration
The natural grasslands of West Africa are generally located in the
A rain forest
B guinea savanna
C mangroves
D equatorial belts
The use of land for agricultural purpose involves the following except
A livestock grazing
B fish farming
C road construction
D crop production
The practice of growth both food and forage crops simultaneously on the same piece of land is called
A pastoral farming
B ley farming
C crop rotation
D continuous cropping
Agricultural land use is negatively affected by
A type of soil
B climatic factors
C increase in population
D increase in soil micro-organisms
Which of the following statements about communal land tenure system is true?
A it gives the owner complete freedom on the land
B the land can be used as collateral for agricultural loans
C the land can be shared by the owner's children
D mechanical agriculture can be profitably practised
An advantage of commercial agriculture is that it
A requires small space
B requires skilled labour
C produces high returns
D involves low capital
The most important contribution of agriculture to mankind is the provision of
A shelter
B employment
C foreign exchange
D food
The process which a farmer goes through from the time he hears about a new idea till he finally accepts it, is referred to as
A evolution
B revolution
C diffusion
D adoption
The aims and objectives of agricultural extension education do not include
A educating farmers on the use of new tools
B educating farmers on government annual budgets
C encouraging farmers to obtain loans for farming
D encouraging farmers to use meteorological information in farming
A tractor with an expected life of 10 years was bought for Le 15.om at the end of which it was to be sold for Le 1.0m. Its calculated depreciation is
A Le 1.4m
B Le 1.5m
C Le 1.6m
D Le 1.7m
Agricultural business is difficult to insure in West Africa mainly because
A agricultural production is not very profitable
B agricultural production is highly risky
C many farmers are very poor
D the premium is high
A farm business makes profit when
A total revenue equals total cost
B total exceeds total revenue
C total revenue exceed total cost
D average cost equals total revenue
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