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1995 District 7 Rural Soils Test



True/False
Indicate whether the sentence or statement is true or false.
 

 1. 

Plant grasses and legumes on class six land.
 

 2. 

The absence of roots may indicate a restrictive soil layer.
 

 3. 

Proper use of management practices which overcome soil limitations can result in a change of land class
 

 4. 

After a soil has been placed in a given land capability class, there is no further classification needed.
 

 5. 

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

 6. 

Soft shale does no affect root growth
 

 7. 

Soil texture has little effect on water and plant nutrient holding capacity of the site.
 

 8. 

Erosion channels caused by rill erosion are small enough to be closed by common tillage tools.
 

 9. 

Top soil and subsoil are of equal importance in the soil.
 

 10. 

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

 11. 

Slope can be defined as the inclination of the land surface from the horizontal
 

 12. 

When tile drainage is installed on class two land (by drainage) the land class changed to class one.
 

 13. 

Organic matter lightens the color of topsoil.
 

 14. 

Soil tilth refers to its organic content.
 

 15. 

Erosion will occur on land with one percent slope.
 

 16. 

Erosion will occur on land with one percent slope.
 

 17. 

The plow layer is the upper seven inches.
 

 18. 

Contouring is needed on land with 2-6 percent slope.
 

 19. 

Conservation tillage should be used on class one land.
 

 20. 

Frequent flooding occurs on land class five.
 

 21. 

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

 22. 

Continuous row cropping can be used on class one and two land.
 

 23. 

A sod waterway is needed to prevent sheet erosion.
 

 24. 

Land should be used for woodland or wildlife if it is swampy or frequently flooded.
 

 25. 

Contour striped should be used on land with 6-18 percent slope
 



 

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