1997 - WAEC Agriculture Past Questions and Answers - page 2
11
Crops grown in nitrogen deficient soil show the following characteristics except
A
poor setting of fruit
B
stunted growth
C
chlorosis in growing crops
D
yellowing of lower leaves
correct option: e
Users' Answers & Comments12
Which of the following is not a function of organic matter in the soil?
A
conserving soil water
B
preventing soil erosion
C
preventing leaching in soil
D
inhibiting seed germination
correct option: d
Users' Answers & Comments13
The following crops can be grown as cover crops except
A
pueraria phaseoloides
B
stylozanthes gracillis
C
centrosema pubescens
D
nicotiana tabacum
correct option: d
Users' Answers & Comments14
Effects of overgrazing on soil include the following except
A
exposure of soil to erosion
B
depletion of soil nutrients
C
soil compaction
D
improvement of soil structure
correct option: d
Users' Answers & Comments15
A farm practice which assists in maintaining the structure and fertility of soil and reduction in risk of the sun infestation is
A
bush burning
B
organic manuring
C
crop rotation
D
mulching
correct option: c
Users' Answers & Comments16
Drainage types include the following except
A
shadoof
B
open
C
channel
D
surface
correct option: a
Users' Answers & Comments17
Energy for photosynthesis in crops is provided by
A
man
B
animal
C
wind
D
sun
correct option: d
Users' Answers & Comments18
Cassava is normally planted at a spacing of about
A
0.1 m x 0.5 m
B
0.75 m x 1.0 m
C
2.0 m x 3.5 m
D
3.0 m x 3.0 m
correct option: b
Users' Answers & Comments19
Cassava is cultivated in many ecological zones because of its
A
industrial and domestic uses
B
tolerance to low rainfall and soil fertility
C
early maturity and weed suppression
D
resistance to mosaic diseases and pest attacks
correct option: b
Users' Answers & Comments20
The agent of controlled pollination in crops is
A
water
B
light
C
moth
D
butterfly
correct option: e
Users' Answers & Comments