2009 - WAEC Agriculture Past Questions and Answers - page 2
11
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
correct option: a
Users' Answers & Comments12
Magnesium deficiency in crops can be corrected by the application of
A
dolomite
B
limestone
C
quicklime
D
urea
correct option: a
Users' Answers & Comments13
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
correct option: c
Users' Answers & Comments14
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
correct option: b
Users' Answers & Comments15
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
correct option: b
Users' Answers & Comments16
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
A
I,II and III only
B
II,III and IV only
C
I,II and IV only
D
I,II,III and IV
correct option: b
Users' Answers & Comments17
The removal of excess water from the sub-soil is known as
A
irrigation
B
drainage
C
evaporations
D
dehydration
correct option: b
Users' Answers & Comments18
The best source of farm power for agricultural production is
A
human power
B
animal power
C
mechanical power
D
solar power
correct option: a
Users' Answers & Comments19
The greatest disadvantage of using a bulldozer in land clearing is that it
A
removes the fertile top soil along with the vegetation
B
makes the soil lose its texture
C
allows the fast growth of weeds after clearing
D
increases the incidence of pests
correct option: a
Users' Answers & Comments20
Mechanization is difficult to practice where the
A
land is fragmented
B
farmer is wealthy
C
farm holding is large
D
soil fertility is low
correct option: a
Users' Answers & Comments