WAEC Agricultural Science Past Questions & Answers - Page 218

1,086.

Irrigation water is passed underneath the soil through

A.

Sprinklers

B.

Canals

C.

Drips

D.

Pipes

Correct answer is D

No explanation has been provided for this answer.

1,087.

Which of the following farming practices encourages soil degradation?

A.

Fertilizer application

B.

Bush burning

C.

Cover cropping

D.

Fungicide application

Correct answer is B

No explanation has been provided for this answer.

1,088.

A fertilizer bag had the following inscription 27:10:10. This means that it contained

A.

27kg of nirogen, 10kg of phosphate, 10kg of potash

B.

27kg of phosphate, 10kg of potash, 10kg of nitrogen

C.

27kg of potash, 10kg of nitrogen, 10kg of phosphate

D.

27kg of sulphate, 10kg of potash, 10kg of phosphate

Correct answer is A

No explanation has been provided for this answer.

1,089.

The plant nutrient essential for the formation of tubers is

A.

Molybdenum

B.

Phosphorus

C.

Potassium

D.

Sodium

Correct answer is C

No explanation has been provided for this answer.

1,090.

Although clayey soils are rich in nutrients, they are not good for most agricultural crop production because they

A.

Do not release their nutrients

B.

Are too compact and poorly aerated

C.

Lose their nutrients too readily after rains

D.

Contain too much iron, aluminium and boron

Correct answer is B

No explanation has been provided for this answer.