Which of the following effects is not due to water-logging?
Inhibition of crop development
Enhancement of leaching
Inhibition of the activities of soil microorganisms
Wilting of crop roots
Correct answer is D
No explanation has been provided for this answer.
The following farming practices expose the soil to agents of erosion except
Bush burning
Land clearing
Crop rotation
Overgrazing
Correct answer is C
No explanation has been provided for this answer.
In the carbon cycle, atmospheric carbon dioxide is replenished by
Respiration
Transpiration
Lightening
Dentrification
Correct answer is A
No explanation has been provided for this answer.
Streak disease of maize is caused by
Virus
Nematode
Fungus
Bacterium
Correct answer is A
No explanation has been provided for this answer.
Physical properties of clay soil include
Low porosity and low capillarity
High porosity and high capillarity
Low porosity and high capillarity
High porosity and low capillarity
Correct answer is C
No explanation has been provided for this answer.