Edaphic Factors affecting agricultural production - SS2 Agriculture Past Questions & Answers - page 1

1

What do edaphic factors primarily influence in agriculture?

A

Animal husbandry

B

Crop production

C

Pest control

D

Weather patterns

CORRECT OPTION: b
2

Which of the following is NOT an edaphic factor affecting agriculture?

A

Soil type

B

Temperature

C

Soil pH

D

Soil texture

CORRECT OPTION: b
3

Which soil pH range is generally considered optimal for most crops?

A

pH 4-5

B

pH 6-7

C

pH 8-9

D

pH 10-11

CORRECT OPTION: b
4

Sandy soils are known for:

A

Good water retention

B

High nutrient retention

C

Quick drainage

D

Compacted structure

CORRECT OPTION: c
5

What is the role of soil testing in agriculture?

A

Determining crop maturity

B

Identifying pests

C

Assessing soil nutrient levels

D

Measuring rainfall

CORRECT OPTION: c
6

Why is organic matter important in soil?

A

It helps control pests

B

It enhances soil acidity

C

It improves soil structure and fertility

D

It reduces soil pH

CORRECT OPTION: c
7

Which edaphic factor directly affects microbial activity in the soil?

A

Soil depth

B

Soil type

C

Soil pH

D

 Soil moisture

CORRECT OPTION: d
8

What type of soil is best suited for root crops like potatoes?

A

Sandy soil

B

Clayey soil

C

Loamy soil

D

Silty soil

CORRECT OPTION: b
9

In which edaphic condition do plants often suffer from nutrient deficiency?

A

Acidic soil

B

Alkaline soil

C

Neutral soil

D

Sandy soil

CORRECT OPTION: b
10

What does soil texture refer to?

A

The color of the soil

B

The composition of soil particles

C

The pH of the soil

D

The depth of the soil

CORRECT OPTION: b
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