Agricultural Science questions and answers

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.

1,576.

Which of the following is not a principal of crop rotation?

A.

Deep-rooted crops should be followed by shallow rooted crops

B.

A period of fallow must be provided in the cours of the rotation

C.

A leguminous crop should be included in the system

D.

Crops that can be attacked by the same pest should not follow each other

Correct answer is B

No explanation has been provided for this answer.

1,577.

Nitrogen deficiency in plants can lead to the following except

A.

Stunted growth

B.

Excessive growth

C.

Lower protein content of crop products

D.

General yellowing of leaves

Correct answer is B

No explanation has been provided for this answer.

1,578.

Nitrogen may be lost from the soil through the following processes except

A.

Crop removal

B.

Soil erosion

C.

Leaching

D.

Irrigation

Correct answer is D

No explanation has been provided for this answer.

1,579.

What is the percentage water content of a soil sample which weighed 180g when fresh and 120g when oven dried?

A.

66.7%

B.

60.0%

C.

15.0%

D.

33.3%

Correct answer is D

No explanation has been provided for this answer.

1,580.

A soil with low pH value can be improved by the addition of

A.

Ammonium sulphate

B.

Calcium carbonate

C.

Sodium chloride

D.

Sodium nitrate

Correct answer is B

No explanation has been provided for this answer.