Methods of replenishing plant nutrients in the soil - SS2 Agriculture Past Questions & Answers - page 1

1

What is the primary purpose of rotational cropping?

A

Increase crop yield

B

Prevent nutrient depletion

C

Enhance soil pH

D

Control pests

CORRECT OPTION: b
2

Which of the following is an example of organic manuring?

A

Synthetic fertilizer

B

Lime application

C

Animal manure

D

Crop rotation

CORRECT OPTION: c
3

Synthetic fertilizers are a source of:

A

Organic matter

B

Slow-release nutrients

C

Slow-release nutrients

D

Soil microorganisms

CORRECT OPTION: c
4

What is the purpose of fallowing in agriculture?

A

Increasing crop diversity

B

Improving soil structure

C

Preventing soil erosion

D

Allowing soil recovery and nutrient replenishment

CORRECT OPTION: d
5

Liming is primarily used to:

A

Reduce soil pH

B

Increase soil acidity

C

Raise soil pH and improve nutrient availability

D

Enhance soil erosion

CORRECT OPTION: c
6

Cover cropping is beneficial because it:

A

Increases crop yield

B

Suppresses soil microorganisms

C

Protects the soil from erosion and adds nutrients

D

Eliminates the need for crop rotation

CORRECT OPTION: c
7

What is the main benefit of crop rotation?

A

Conserving water

B

Preventing soil compaction

C

Reducing the need for pesticides

D

Managing soil fertility and nutrient levels

CORRECT OPTION: d
8

Which nutrient is commonly found in animal manure?

A

Nitrogen

B

Phosphorus

C

Potassium

D

All of the above

CORRECT OPTION: d
9

Inorganic manuring typically provides nutrients in which form?

A

Organic

B

Chemical

C

Biological

D

Physical

CORRECT OPTION: b
10

What does the process of liming involve?

A

Reducing soil pH

B

Adding organic matter to soil

C

Raising soil pH by adding lime

D

Enhancing soil compaction

CORRECT OPTION: c
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