Waec Agricultural Science 2019 Past Questions and Answers

Question 31:

• WAEC 2019

Study and answer this question

The soil horizon that is not supportive of the growth of tree crops is?

A. HorizonA.
B. HorizonB
C. HorizonC
D. HorizonD

Question 32:

• WAEC 2019

Liquid fertilizers and pesticides could be applied through?

A. Furrow irrigation
B. Channel irrigation
C. Sprinkler irrigation
D. Flood irrigation

Question 33:

• WAEC 2019

In a crop rotation system, it is usually preferred that cassava comes last in the rotation because it?

A. Adds nitrogen to the soil
B. Is a shallow feeder
C. Is a deep rooted crop
D. Is a perennial crop

Question 34:

• WAEC 2019

The growing of only one crop on a piece of land from year to year is known as?

A. Mixed cropping
B. Crop rotation
C. Monoculture
D. Shifting cultivation

Question 35:

• WAEC 2019

In green manuring, crops are ploughed into the soil just before flowering in order to?

A. Control soil pathogens
B. Enrich the soil with nutrients
C. Control soil erosion
D. Increase the soil temperature