Waec Agricultural Science 2009 Past Questions and Answers

Question 26:

• WAEC 2009

A bag of fertilizer had a ratio of 0:10:0 written on it. This means that the fertilizer contains

A. 0 kg of nitrogen, 10 kg of potash and 0 kg of phosphate
B. 0 kg of phosphate, 10 kg of nitrogen and 0 kg of potash
C. 0 kg of nitrogen, 10 kg of phosphate and 0 kg of potash
D. 0 kg of potash, 10 kg of phosphate and 0 kg of nitrogen

Question 27:

• WAEC 2009

In crop rotation, deep-rooted crops should follow shallow-rooted crops because deep-rooted crops

A. Are resistant to diseases
B. Are early-maturing
C. Feed from different soil layers
D. Attract different kinds of pests

Question 28:

• WAEC 2009

If a crop is planted at a spacing of 100cm x 50cm. Calculate the plant population required for an hectare of farm land.

A. 200
B. 2,000
C. 5,000
D. 20,000

Question 29:

• WAEC 2009

The term hermetic storage of grains means keeping grains in

A. Air-tight containers
B. Jute bags
C. Silos
D. Rhumbus

Question 30:

• WAEC 2009

A disadvantage of vegetatively propagated crops is that they

A. Do not mature on time
B. Are less resistant to diseases
C. Do not withstand harsh conditions
D. Lodge very readily