Soil Fertility
Agricultural Science · 50 practice questions
Macro and micro-nutrients and their roles in plant nutrition (carbon, water, nitrogen cycles); soil flora/fauna and their roles in fertility; methods of maintaining soil fertility (cover crops, organic manures); nutrient deficiency symptoms (chlorosis, sickle leaves, stunting).
- Classify plant nutrients and identify factors affecting their availability.
- Examine the roles of soil flora/fauna in fertility.
- Compare methods of maintaining soil fertility and differentiate organic from inorganic fertilizers.
- Identify deficiency symptoms and suggest remedies.
Try a few questions
- Practice question 1
Beyond nutrient levels, soil health can mainly also be indicated by
- A.the exact market price of the land alone
- B.the political classification of the farming region
- C.biological activity and physical structure of the soil
- D.the currency used to trade the land
Show the answer
C. biological activity and physical structure of the soil
A fuller picture of soil health considers biology and structure alongside nutrients.
- Practice question 2
Sulphur, as a plant nutrient, mainly plays a role in
- A.providing the plant with its primary source of energy
- B.anchoring the plant firmly within the soil
- C.facilitating water uptake through the root system
- D.the formation of certain proteins and enzymes within the plant
Show the answer
D. the formation of certain proteins and enzymes within the plant
Sulphur is a component of several important plant proteins and enzymes.
- Practice question 3
Biological nitrogen fixation, unlike industrial (synthetic) nitrogen fixation, mainly relies on
- A.high-temperature, high-pressure industrial chemical processes
- B.the direct mining of nitrogen from mineral deposits
- C.the burning of fossil fuels to release nitrogen gas
- D.living organisms, such as bacteria, to convert atmospheric nitrogen
Show the answer
D. living organisms, such as bacteria, to convert atmospheric nitrogen
Biological fixation uses living microbes, unlike the industrial Haber process for synthetic fertilizer.
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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