Weeds
Agricultural Science · 50 practice questions
Morphology, methods of reproduction, dispersal and effects of weeds; weed control methods (weeding, mulching, cover cropping, tillage, herbicides, trap cropping).
- Identify weeds by common/scientific names and classify them by dispersal mode.
- Identify characteristic features of weeds and apply appropriate weed control methods.
Try a few questions
- Practice question 1
Mulching, as a weed control method, mainly works by
- A.covering the soil to suppress weed growth
- B.exposing soil fully to encourage weed growth
- C.adding fertilizer that specifically promotes weeds
- D.removing all moisture from the soil surface
Show the answer
A. covering the soil to suppress weed growth
A mulch layer blocks light and space, hindering weed germination.
- Practice question 2
Manual weeding, compared to chemical weeding, is generally mainly
- A.always cheaper overall than chemical weeding in every situation
- B.entirely free of any labour requirement
- C.guaranteed to be more effective than chemical weeding in every case
- D.more labour-intensive but requires no chemical input cost
Show the answer
D. more labour-intensive but requires no chemical input cost
Hand weeding trades chemical costs for a heavier demand on labour.
- Practice question 3
Certain weeds can mainly act as indicator species by
- A.having no relationship whatsoever to underlying soil conditions
- B.signalling underlying soil conditions, such as acidity or poor drainage
- C.guaranteeing that the soil beneath them is always highly fertile
- D.indicating only the market price of the surrounding farmland
Show the answer
B. signalling underlying soil conditions, such as acidity or poor drainage
The presence of specific weeds can hint at particular soil characteristics.
More UTME Agricultural Science topics
- Factors of Agricultural Production
- Farm Surveying and Farmstead Planning
- Forms and Classification of Major Farm Animals in West Africa
- Meaning and Scope of Agriculture
- Rocks and Soil Formation
- Basic Economic Principles
- General Terminologies in Animal Production
- Importance of Agriculture
- Simple Farm Tools
- Soil Water and Soil Conservation
- Agricultural Ecology
- Anatomy and Physiology of Farm Animals
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