2002 District 7 Rural Soils Test

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2002 District 7 Rural Soils Test

True/False

Indicate whether the sentence or statement is true or false.

1.

Loamy soil contains sand.

2.

Soil that has a depth of 40” or more is a deep soil.

3.

Dense glacial till is compact soil material that is tightly bound together and seldom found in Ohio soils.

4.

Imperfectly drained soils usually have mottles of gray, yellow and brown.

5.

There are four texture classes listed in the Ohio Land and Soil Conservation Scorecard.

6.

The master soil horizon designated by the upper case B is substratum.

7.

Three feet on rise or fall in 100 ft. of horizon distance would be a 3% slope.

8.

The color of subsoil is the best indicator of air and water movement in the subsoil.

9.

A claypan is a dense, compact layer in the topsoil.

10.

Plant roots a require favorable balance of air and water movement in the subsoil.

11.

Strip cropping with contour tillage shoud be used on uniform slopes that range from 6-18%.

12.

Soils that contain many large stones or massive bedrock are referred to as heavy soils.

13.

Organic matter in the surface layer of the soil tends to break the force of pelting raindrops and prevents the packing of soil and its consequent erosion.

14.

There are some areas in Ohio where wind erosion can be severe.

15.

A fragipan is a loamy subsoil horizon that is compact and usually shows strong mottling.

16.

Percent of slope is always measured in th steepest “average” relief of the site.

17.

Course sand or gravel is not considered a root-restrictive layer because it has good water movement.

18.

Organic matter improves soil aeration.

19.

Of the three primary soil particles, sand is the largest with a .002 to a .08” diameter.

20.

Gully erosion channels are small enough to be covered by common tillage tools.

21.

A profile is a cross section of soil from the surface downward to the parent material.

22.

Clay is the smallest mineral soil particle.

23.

No-till with crop residue should be used on class VI land.

24.

Soil slippage generally occurs on slopes less than 12 percent.

25.

Permeability refers to the ability of a soil to evaporate water.

True/False Indicate whether the sentence or statement is true or false.
	1.	Loamy soil contains sand.
	2.	Soil that has a depth of 40” or more is a deep soil.
	3.	Dense glacial till is compact soil material that is tightly bound together and seldom found in Ohio soils.
	4.	Imperfectly drained soils usually have mottles of gray, yellow and brown.
	5.	There are four texture classes listed in the Ohio Land and Soil Conservation Scorecard.
	6.	The master soil horizon designated by the upper case B is substratum.
	7.	Three feet on rise or fall in 100 ft. of horizon distance would be a 3% slope.
	8.	The color of subsoil is the best indicator of air and water movement in the subsoil.
	9.	A claypan is a dense, compact layer in the topsoil.
	10.	Plant roots a require favorable balance of air and water movement in the subsoil.
	11.	Strip cropping with contour tillage shoud be used on uniform slopes that range from 6-18%.
	12.	Soils that contain many large stones or massive bedrock are referred to as heavy soils.
	13.	Organic matter in the surface layer of the soil tends to break the force of pelting raindrops and prevents the packing of soil and its consequent erosion.
	14.	There are some areas in Ohio where wind erosion can be severe.
	15.	A fragipan is a loamy subsoil horizon that is compact and usually shows strong mottling.
	16.	Percent of slope is always measured in th steepest “average” relief of the site.
	17.	Course sand or gravel is not considered a root-restrictive layer because it has good water movement.
	18.	Organic matter improves soil aeration.
	19.	Of the three primary soil particles, sand is the largest with a .002 to a .08” diameter.
	20.	Gully erosion channels are small enough to be covered by common tillage tools.
	21.	A profile is a cross section of soil from the surface downward to the parent material.
	22.	Clay is the smallest mineral soil particle.
	23.	No-till with crop residue should be used on class VI land.
	24.	Soil slippage generally occurs on slopes less than 12 percent.
	25.	Permeability refers to the ability of a soil to evaporate water.