Soil Factors Part 1
Check Appropriate Square
A. Texture
Sur. Sub.
3 1.
Coarse (sand)
1 2.
Moderately Coarse
1 3.
Medium (silt, loam)
1 4.
Moderately Fine 1 5. Fine (clay)
B. Depth of Soil
1 1.
Deep (40" or more)
1 2.
Moderately Deep (20" - 40")
3 3.
Shallow (10" - 20")
7 4.
Very Shallow (less than 10")
C. Slope
1 1.
Nearly Level (less than 1')
2 2.
Gently Sloping (1' to 3')
3 3.
Moderately Sloping (3' to 5')
4 4.
Strongly Sloping (5' to 8')
6 5.
Steep (8' to 15')
6 6.
Very Steep (15' or more)
D. Erosion
- Wind & Water
1 1.
None to Slight
(25% or less
-- fraction formed 3/4 or larger)
2 2.
Moderate
(25% - 75%
-- fraction formed 3/4 to 1/4)
6 3.
Severe
(75% or more
-- fraction formed less than 1/4)
6 4.
Very Severe (75% or more and
un-crossable ditches)
E. Permeability
3 1.
Rapid (coarse)
1 2.
Moderate (mod. coarse & medium)
1 3.
Slow (mod. fine)
2 4.
Very Slow (fine)
F. Surface Runoff
3 1.
Rapid (greater than 3' slope)
1 2.
Moderate (gently sloping)
1 3.
Slow (nearly level not
very slow perm. concave for slope)
2 4.
Very Slow (coarse sur. and rapid
perm. or
concave with very slow perm.)
G. Major Factors
that keep land out of class I
H. Land Capability Class
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Land
Judging
Card |
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Recommended Land Treatments
Part 2
A. Vegetative
1.
Row crop/occ (if Class I)
2.
Row crop/fre (if Class II)
3.
Row crop 2 of 4 (if Class III)
4.
Row crop 1 of 5 (if Class IV)
5.
Return crop res. (if Class I, II, III or IV)
6.
Practice cons tillage (if 5 is checked)
7.
Est. grass or legumes (if Class V - VIII)
8.
Proper Management (if 7 is checked)
9.
Protect Burn (if 7 is checked)
10.
Control Grazing (if 7 is checked)
11.
Plant Rec. trees
12.
Harvest trees selectively
13.
Wildlife & Recreation
B. Mechanical
14.
Control trees
(if trunk is 2" diameter at 5' above ground)
15.
Terrace
(mark if not nearly level or coarse, class II - IV)
16.
Maintain Terraces (if 15 is marked)
17.
Diversion terrace
(other factors - overhead water problem)
18.
Drainage system (other factors - mod. wet.)
19.
Control gullies (if present)
20.
No mechanical treatment
(if none of 14 - 19 are checked)
C. Fertilizer and Soil Amendments
21.
Soil Amendments (pH < or = 6.3 or > 8.0)
22.
Phosphorus (< 60)
23.
Potassium (< 300)
24.
Nitrogen (deficient)
25.
Not Needed (if none of 21 - 24 are checked)
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