JAMB and WAEC Agricultural Science questions

597 questions with answers and explanations. Tap an option to check yourself.

All topics Agricultural economics and extension · 41 Animal pests and diseases · 38 Animal reproduction and nutrition · 38 Classification and anatomy of farm animals · 37 Crop classification and propagation · 36 Crop pests and diseases · 39 Farm tools and mechanisation · 35 Fisheries and aquaculture · 35 Forestry · 33 Husbandry of field crops · 41 Irrigation and drainage · 36 Livestock management · 37 Meaning and importance of agriculture · 36 Soil fertility, manures and fertilisers · 43 Soil formation and properties · 39 Weeds and weed control · 33

Question 381· Irrigation and drainage· JAMB
Sprinkler irrigation sprays water
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Answer: A. like rain over the crop
Explanation and discussion
Question 382· Irrigation and drainage· JAMB
The method of irrigation in which water drips slowly at the base of each plant through small pipes is
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Answer: C. drip irrigation
Explanation and discussion
Question 383· Irrigation and drainage· JAMB
Drip irrigation is suitable where
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Answer: B. water is scarce
Explanation and discussion
Question 384· Irrigation and drainage· WAEC
A disadvantage of flood irrigation is that it
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Answer: A. wastes water and may cause erosion
Explanation and discussion
Question 385· Irrigation and drainage· WAEC
Waterlogging affects crops mainly by
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Answer: B. reducing oxygen around the roots
Explanation and discussion
Question 386· Irrigation and drainage· JAMB
Tile drainage removes excess water through
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Answer: D. underground pipes
Explanation and discussion
Question 387· Irrigation and drainage· WAEC
Sprinkler irrigation applies water
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Answer: C. as a spray like rain
Explanation and discussion
Question 388· Irrigation and drainage· JAMB
Furrow irrigation is the method in which water
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Answer: C. flows along channels between crop rows
Explanation and discussion
Question 389· Irrigation and drainage· WAEC
Water for irrigation can be obtained from
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Answer: D. rivers, dams and boreholes
Explanation and discussion
Question 390· Irrigation and drainage· JAMB
A disadvantage of sprinkler irrigation is that it
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Answer: D. loses much water through evaporation and is costly
Explanation and discussion
Question 391· Irrigation and drainage· WAEC
A problem of poor drainage is
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Answer: A. waterlogging
Explanation and discussion
Question 392· Irrigation and drainage· JAMB
Surface drainage removes
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Answer: D. excess water from the soil surface
Explanation and discussion
Question 393· Irrigation and drainage· WAEC
Irrigation allows farmers to
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Answer: C. grow crops in the dry season
Explanation and discussion
Question 394· Irrigation and drainage· JAMB
A dam in an irrigation scheme is used to
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Answer: B. store water
Explanation and discussion
Question 395· Irrigation and drainage· WAEC
Mole drains are
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Answer: A. unlined underground channels formed in clay soil by a mole plough
Explanation and discussion
Question 396· Irrigation and drainage· WAEC
Drainage is the
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Answer: B. removal of excess water from the soil
Explanation and discussion
Question 397· Irrigation and drainage· WAEC
Irrigation is the
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Answer: C. artificial supply of water to crops
Explanation and discussion
Question 398· Irrigation and drainage· JAMB
Digging open ditches across a waterlogged field is a way of
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Answer: A. draining the land
Explanation and discussion
Question 399· Irrigation and drainage· JAMB
Furrow irrigation delivers water
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Answer: C. along channels between crop rows
Explanation and discussion
Question 400· Irrigation and drainage· WAEC
Irrigation is
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Answer: B. artificial application of water to crops
Explanation and discussion

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JAMB and WAEC Agricultural Science questions

Sprinkler irrigation sprays water

The method of irrigation in which water drips slowly at the base of each plant through small pipes is

Drip irrigation is suitable where

A disadvantage of flood irrigation is that it

Waterlogging affects crops mainly by

Tile drainage removes excess water through

Sprinkler irrigation applies water

Furrow irrigation is the method in which water

Water for irrigation can be obtained from

A disadvantage of sprinkler irrigation is that it

A problem of poor drainage is

Surface drainage removes

Irrigation allows farmers to

A dam in an irrigation scheme is used to

Mole drains are

Drainage is the

Irrigation is the

Digging open ditches across a waterlogged field is a way of

Furrow irrigation delivers water

Irrigation is