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True/False
Indicate whether the sentence or statement is true or false. |
| | 1. | Mottling in the subsoil is an indicator of wetness. |
| | 2. | Contouring is needed on land with 2-6% slope. |
| | 3. | Clay is the smallest soil particle. |
| | 4. | A soil profile is a cross section of the soil showing the A,B, and C horizons. |
| | 5. | The plow layer is the upper 7” of soil. |
| | 6. | Contour strip cropping should be used on land with 6-12% slope. |
| | 7. | Class 5 and 6 land should be used for pasture. |
| | 8. | Lime and fertilizer should be applied as indicated by soil tests for crop and pasture land. |
| | 9. | Organic matter lightens the color of the topsoil. |
| | 10. | The C horizon is the subsoil. |
| | 11. | The frequent flooding occurs on class 5 land. |
| | 12. | Erosion will not occur on land with 1% slope. |
| | 13. | Erosion that occurs evenly over a field is sheet erosion. |
| | 14. | A frigipan is not a hard dense layer. |
| | 15. | Conservation tillage is only used on class 2 & 3 land. |