Soil Fundamentals
Soil pH
Soil Mineral Materials
Conserving Soil
Fun Facts
100

What does the term "Loam" mean?

Rich soil with appropriate amounts of Clay, Sand, and Silt

100

What is considered Acidic levels on the pH Scale?

1 - 6

100

What is the largest mineral particle?

Sand

100

What are 2 examples of Soil Conservation?

Varies
100

Why is soil fertility important to agriculture?

Varies

200

What are the layers of soil called?

Horizons (O-layer, A-layer, B-layer, and C-layer)
200
What is considered Alkaline (basic) levels on the pH Scale?

8 - 14

200

What is the smallest mineral particle?

Clay

200

The ability of soil to support plant growth and many beneficial processes that occur in soil is called...

Soil Fertility

200

T or F: Utah has abundant amounts of Copper, Manganese, Selenium, and Zinc in its soil.

False

300

What is Organic Matter/Material?

Plant or Animal remains in a decaying state.

300

What is considered "neutral" on the pH Scale?

7

300

Dark colored soil (dark brown/black) usually means what?

Soil is fertile and has high levels of organic matter/material.

300

The decline in soil quality caused by improper use is called...

Soil Degradation
300

T or F: Soil is home to billions of living organisms.

True

400
What are the 4 major minerals when discussing soil?

Nitrogen (N), Calcium (Ca), Phosphorus (P), and Potassium (K)

400

What range of pH do soils usually run at?

4 - 9

400

What are the 3 mineral materials that make up soil texture?

Sand, Silt, Clay

400

Rills that have become extremely large is what type of Soil Erosion?

Gully Erosion

400

The 3 numbers at the bottom of a fertilizer bag represent what?

Nitrogen (N), Phosphorus (P), and Potassium (K)

500
What are the 4 main components that make up soil?

Minerals, Water, Air, and Organic Matter/Material

500

What is considered the ideal pH for soil that suits most plants?

6.6

500
Dull colored (gray/olive gray) soil usually means...
Poor Drainage
500

The gradual and fairly uniform removal of surface soil is what type of soil erosion?

Sheet Erosion

500

What is an example of planting a certain crop that benefits soil?

Alfalfa being a Nitrogen Fixer

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