Jamb Agricultural Science Past Questions For Year 2019
Question 46
One major difference between disc plough and disc Harrow is
- A. Disc plough is used to create wider ridges on the field than disc Harrow
- B. A disc plough can have up to 54 discs on it at once whereas a disc harrow can have up to 6 disc
- C. Disc plough is used to tilled the disc harrowed land
- D. The disc part of plough is notched while that of harrow is round
Question 47
Which one of these is not part of a disc plough
- A. Planter
- B. Furrow wheel
- C. Coulter
- D. Disc scraper
Question 48
All but one are related to surface irrigation?
- A. Mole drainage
- B. Natural flooding
- C. Sprinkler irrigation
- D. Check flooding
Question 49
In which of the soil layer does most biological activity occur?
- A. B - horizon
- B. C - horizon
- C. D - horizon
- D. A - horizon
Question 50
Legumes are different from grasses, because;
- A. They have lesser protein content than grasses
- B. They form symbiotic relationship with bacteria, rhizobian, in the nodules of their roofs
- C. They are monocol plants
- D. They do not bear seeds
