2001 District 7 Rural Soils Test

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2001 District 7 Rural Soils Test

True/False

Indicate whether the sentence or statement is true or false.

1.

Sandy clay, silty clay and clay textured soils are all considered fine-textured soils.

2.

Sheet erosion is the removal of a fairly uniform layer of soil material from the land surface by action of rainfall.

3.

Surface drainage should be used on land that is very poorly drained.

4.

An intensive cropping system is where row crops predominate.

5.

Soil texture refers to the aggregation of soil mineral particles.

6.

A fragipan is a layer of solid rock.

7.

Grass waterways are natural or constructed waterways which conduct water runoff from adjacent slopes.

8.

Crop residues plowed under tend to improve the structure and tilthof clayey texured soils.

9.

Soil depth does not affect the kind of crops that can be grown.

10.

A sandy loam soil is considered a coarse textured soil.

11.

The C horizon is considered the substratum or parent material.

12.

Rill erosion is characterized by shallow channels cut into the surface layer of the soil.

13.

Coarse sand and gravel is not considered root restrictive since it may be easily penetrated by roots.

14.

Land is one of the most valuable resources and covers about 50% of the earth’s surface.

15.

The darker color of topsoil is usually caused by oxidation of soil materials.

True/False Indicate whether the sentence or statement is true or false.
	1.	Sandy clay, silty clay and clay textured soils are all considered fine-textured soils.
	2.	Sheet erosion is the removal of a fairly uniform layer of soil material from the land surface by action of rainfall.
	3.	Surface drainage should be used on land that is very poorly drained.
	4.	An intensive cropping system is where row crops predominate.
	5.	Soil texture refers to the aggregation of soil mineral particles.
	6.	A fragipan is a layer of solid rock.
	7.	Grass waterways are natural or constructed waterways which conduct water runoff from adjacent slopes.
	8.	Crop residues plowed under tend to improve the structure and tilthof clayey texured soils.
	9.	Soil depth does not affect the kind of crops that can be grown.
	10.	A sandy loam soil is considered a coarse textured soil.
	11.	The C horizon is considered the substratum or parent material.
	12.	Rill erosion is characterized by shallow channels cut into the surface layer of the soil.
	13.	Coarse sand and gravel is not considered root restrictive since it may be easily penetrated by roots.
	14.	Land is one of the most valuable resources and covers about 50% of the earth’s surface.
	15.	The darker color of topsoil is usually caused by oxidation of soil materials.