1997 District 7 Rural Soils Test

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1997 District 7 Rural Soils Test

True/False

Indicate whether the sentence or statement is true or false.

1.

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

2.

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

3.

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

4.

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

5.

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

6.

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

7.

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

8.

Clay is the smallest mineral soil particle.

9.

Loamy soil contains sand.

10.

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

11.

Organic matter improves soil aeration.

12.

The color of soil is associated with the kind of material from which the soil was formed.

13.

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

14.

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

15.

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

16.

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

17.

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

18.

Plant roots require favorable balance of air and water for optimal growth.

19.

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

20.

Three feet of rise or fall in 100 ft. of horizonal distance would represent a 3% slope.

21.

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

22.

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

23.

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

24.

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

25.

The method of observing soil profiles by using power tools remove a vertical cross section of the top of a hill is called the “boom howard”method.

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