Question 1 of 20 2,683 total questions
Mechanization in West Africa is limited by the following except
A size of farm holding
B technical know-how
C capital
D labour
Farm mechanisation in West Africa is not limited by
A the large population of farmers
B poverty among the farmers
C inadequate infrastructure facilities
D seasonality of agricultural production
Which of the following parts of a tractor is most essential in operating a mower?
A steering wheel
B top link
C power-take-off shaft
D stabilizer chains
A farm implement used for planting grains is the
A drill
B ridger
C harrow
D plough
Water power is harnessed and converted into electrical power by
A blades
B cranes
C turbines
D hovercraft
The most unreliable source of farm power is
A wind
B water
C electricity
D machine
Which of the following methods of irrigation is best for a farm with an undulating landscape?
A sprinkler
B flooding
C furrow
D basin
Farm drainage does not lead to
A improvement in soil structure
B improvement of oil temperature
C increased soil aeration
D reduction of soil alkalinity
Which of the following will not lead to loss of nitrogen compounds from the soil?
A crop removal
B burning
C lodging
D leaching
In the nitrogen cycle, nitrite is oxidized to nitrate by
A nitrobacter
B nitrosomonas
C azotobacter
D rhizobium
Leguminous cover crops do not
A bind the soil particles together through their roots
B increaes the nitrogen content of soils
C aid in improving the soil organic matter content
D reduce the soil microbial population
A disadvantage of using organic manure on the soil is that
A it decreases the potassuim content of the soil
B diseases spread fast
C it increases the humus content of the soil
D it reduces the rate of soil water evaporation
Which of the following processes will not lead to the loss of nutrients from the soil?
A erosion
B mulching
C harvesting
D leaching
Which of the following soil water is tightly held to the surface of soil particles?
A hygroscopic water
B gravitational water
C capillary water
D superfluous water
The most important soil micro-organism causing decay and nutrient recycling are
A bacteria and fungi
B fungi and algae
C algae and actinomycetes
D bacteria and algae
What is the percentage porosity of a soil sample whose volume is 250cm when the volume of air is 200cm?
Clay particles are able to attract cations in the soil because they
A are positively charged
B have excess negative charges
C are sticky
D can be moulded
Igneous rocks formed within the crust are called
A guartzite
B volcanic
C plutonic
D stratified
The use of land for agriculture is not influenced by
A labour
B climate
C topography
D population
The land tenure system that results in fragmentation of land is
A freehold
B government tenancy
C inheritance
D leasehold
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