1999 - WAEC Agriculture Past Questions and Answers - page 2
11
The horizon of soil profile which encourages the greatest level of microbial activity is
A
A-horizon
B
B-horizon
C
C-horizon
D
D-horizon
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12
The easiest method of determining soil texture in the field is by
A
moulding
B
sieving
C
feeling
D
sedimenting
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13
The type of soil with a particle size of 0.02 to 0.002 mm is
A
clay
B
silt
C
fine sand
D
coarse sand
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14
If urea fertilizer contains 46% nitrogen. calculate the amount of nitrogen in 25 kg bag of fertilizer?
A
11.5 kg
B
13.5 kg
C
21.5 kg
D
36.5 kg
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15
Fertile soil is one which
A
is easily drained
B
is well aerated
C
can produce a good harvest of cowpea
D
contains all essential plant nutrients in suitable proportions
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16
The effects of practicing crop rotation include the following except
A
maintaining and improving soil fertility
B
controlling soil erosion
C
preventing the build-up of pests and diseases
D
adding humus to the soil
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17
The method of irrigation suitable for use on a steep slope is
A
sprinkler irrigation
B
flood
C
furrow irrigation
D
shadoof
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18
The main source of power for subsistence equipment is
A
animal
B
machine
C
electricity
D
man
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19
The most suitable source of power for stationary equipment on a farm is
A
machine
B
electricity
C
animal
D
man
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20
An important farm machine used for coupling many implements is
A
disc horrow
B
harvester
C
tractor
D
plough
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