Soils CDE 2026/2027 | Complete Study Guide, Practice Questions, and Verified Answers for Career Development Event

Terms in this set (179)


- Farm on Contour/Strip Crop
Class III Land Management Practices - Sod or Legume Crop

- Sod or Legume Crop
Class I Land Management Practices - Minimum Tillage


Class IV Land Management Practices Farm on Contour/Strip Crop

Use for Wildlife/Recreation
Class VIII Land Management Practices

Plant Trees/Harvest Selectively
Class VII Land Management Practices

- Establish Grasses/Legumes
Class VI Land Management Practices - Control Grazing

- Establish Grasses/Legumes
Class V Land Management Practices - Control Grazing


Erosion Moderate 25 - 75%

Erosion None to Slight 25% or less

Erosion Severe More than 75%

Measure from the bottom of the organic layer to the bottom of the A layer.
How do you measure the topsoil layer?

, Frequent
How frequent is flooding in Roadfill
Moderate?

If it will not make a ribbon, it is a... sand

If the ribbon is between 1/2" and 1" and silt loam
feels floury, it is a...

loam
If the ribbon is between 1/2" and 1" and
feels gritty and floury, it is a...

sandy loam
If the ribbon is between 1/2" and 1" and
feels gritty, it is a...

If the ribbon is between 1" and 2" and clay loam
feels gritty and smooth, it is a...

sandy clay loam
If the ribbon is between 1" and 2" and
feels gritty, it is a...

silty clay loam
If the ribbon is between 1" and 2" and
feels very smooth, it is a...

clay
If the ribbon is greater than or equal to 2"
and feels gritty and smooth, it is a...


sandy clay
If the ribbon is greater than or equal to 2"
and feels gritty, it is a...

silty clay
If the ribbon is greater than or equal to 2"
and feels smooth, it is a...

, loamy sand
If the ribbon is less than 1/2" long, it is a...

round up
If you get a decimal on slope, you
should...

slow
If you have 1.1% to 2% slope and
medium infiltration, surface runoff will
be...

very slow
If you have 1.1% to 2% slope and rapid
infiltration, surface runoff will be...


If you have 1.1% to 2% slope and slow slow
infiltration, surface runoff will be...

medium
If you have 2.1% to 7% slope and
medium infiltration, surface runoff will
be...

slow
If you have 2.1% to 7% slope and rapid
infiltration, surface runoff will be...


rapid
If you have 2.1% to 7% slope and slow
infiltration, surface runoff will be...