Agricultural Science Questions and Answers
A comprehensive list of Agricultural science questions with answers to help you prepare for JAMB, WAEC, NECO, Post UTME exams.
A comprehensive list of Agricultural science questions with answers to help you prepare for JAMB, WAEC, NECO, Post UTME exams.
The instrument which enables a surveyor to find the direction of a base line is
Abney level
Ranging pole
Plumb bob
Magnetic compass
Correct answer is D
Compass is used to find direction.
The following crops will enrich the soil with nitrates except
Calopogonium
Pueraria
Centrosema
Axonopus
Correct answer is D
Option D is correct because it doesn’t have nitrogen. Option A, B, C are incorrect because they are all legumes and have nitrogen to produce nitrates.
Yellow colouration of the lower leaves of a growing maize plant may be due to deficiency in
Potassium
Phosphorus
Zinc
Nitrogen
Correct answer is B
When plant is lacking phosphorus, its leaves become yellow.
Which of the following statements is correct about micro-nutrients? They
Promote formation of only root nodules
Are required by plants in very small quantities
Are fixed into the soil through microbial activity
Increase crop tolerance to pest attack
Correct answer is B
Option B is correct as micro nutrients are those nutrients required in small qualities by plants (iron, zinc etc)
1 : 1
1 : 2
3 : 1
4 : 1
Correct answer is C
Feed Conversion Ratio (FCR)
= (Mass gained)/(Mass of feed)
= Mass Gained = 45kg – 25kg = 20kg
= Mass of feed = 60kg
= FCR = 20/60
= 1/3
= 1 : 3