Waec Agricultural Science Past Questions For Year 2005
Question 16
Drainage refers to
- A. removal of excess water from the soil
- B. removal of nutrients from the soil
- C. addition of water to the soil
- D. protection of soil from erosion
Question 17
The appropriate irrigation method for upland rice field is
- A. sprinkler
- B. drip
- C. flooding
- D. underground
Question 18
One importance of cover crops is that they
- A. provide shade for crops
- B. protect crops from pests
- C. increase soil acidity
- D. suppress weed growth
Question 19
Which of the following materials can be applied to the soil in order to correct yellowing of leaves?
- A. lime
- B. urea
- C. gypsum
- D. bone meal
Question 20
A prolonged wet season at the early stage of growth in cotton will lead to
- A. good vegetative growth and high yield of lint
- B. tall plant with few bolls
- C. premature dropping of leaves
- D. waterlogged soil which increases availability of soil nutrients
