Waec Agricultural Science Questions
Question 721:
The horizon of soil profile which encourages the greatest level of microbial activity is
- A A-horizon
- B B-horizon
- C C-horizon
- D D-horizon
Question 722:
The easiest method of determining soil texture in the field is by
- A Moulding
- B Sieving
- C Feeling
- D Sedimenting
Question 723:
The type of soil with a particle size of 0.02 to 0.002 mm is
- A Clay
- B Silt
- C Fine sand
- D Coarse sand
Question 724:
If urea fertilizer contains 46% nitrogen. calculate the amount of nitrogen in 25 kg bag of fertilizer?
- A 11.5 kg
- B 13.5 kg
- C 21.5 kg
- D 36.5 kg
Question 725:
Fertile soil is one which
- A Is easily drained
- B Is well aerated
- C Can produce a good harvest of cowpea
- D Contains all essential plant nutrients in suitable proportions