Soil series

Humus

Saturation

pH

CaCO3

Fe

P

Al

N

Chroma

Slope

SiO2/Al2O3 ratio

Cation exchange  capacity

 Application

Arawak

6-9%

50-95%

3-6

0-15%

0.1-0.2%

2000-4000 kgN/ha

1-4

2-70%

20-55cmol(+)/kg

grasses and shrubs

Blazefork

6-9%

50-95%

3-6

0-15%

0.1-0.2%

2000-4000 kgN/ha

1-4

0-2%

20-55cmol(+)/kg

wheat, sorghums, and alfalfa.

Castelleia

1-4%

10-60%

4-5.5

high

high

2-30%

10-20 cmol(+)kg

aspen, white fir, and snowberry

Chase

6-9%

95%

6.5-7.5

0.1-0.2%

1-2

0-2%

20-55cmol(+)/kg

Wheat, corn, grain sorghum, and soybeans

Clime

6-9%

50-95%

3-6

0.1-0.2%

2000-4000 kgN/ha

1-60%

20-55cmol(+)/kg

tall and mid grasses, winter wheat and grain sorghum

Colton

1-4%

3.5-4.5

high

high

0-70%

seedling birch and pine, bracken fern, and blueberries, grass hay, corn and oats

Dough

1-12%

Pinyon pine, big sagebrush, Indian ricegrass, scattered oakbrush, and blue grama,

Ponderosa pine, muttongrass, Arizona fescue, mountain muhly, and Parry oatgrass

Dunton

1-4%

10-60%

4-5.5

high

high

0-30%

2

10-20 cmol(+)kg

ponderosa pine, Gambel oak, grasses

Florence

6-9%

50-95%

6.5-7.5

0.1-0.2%

1-6

2-15%

20-55cmol(+)/kg

big and little bluestem, switchgrass, and Indiangrass.

Lula

6-9%

50-95%

6.5-7.5

0.1-0.2%

2-6

0-5%

20-55cmol(+)/kg

tall grass prairie, small grains, soybeans, grain sorghum, or tame pasture

Milan

6-9%

50-95%

6.5-7.5

0.1-0.2%

0-6%

20-55cmol(+)/kg

small grains and sorghums, big bluestem, indiangrass, and switchgrass.

Naron

6-9%

50-95%

6.5-7.5

0.1-0.2%

2-4

0-8%

20-55cmol(+)/kg

wheat and sorghums, tall prairie grasses

Nashville

6-9%

50-95%

3-6

0.1-0.2%

2000-4000 kgN/ha

0-12%

20-55cmol(+)/kg

 wheat, Sorghums and alfalfa

Nickerson

10-60%

4-5.5

0-5%

high

high

2-3

0-2%

2

24 cmol(+)kg

wheat, grain sorghum, and alfalfa,  tall and mid grasses

Olpe

6-9%

50-95%

6.5-7.5

0.1-0.2%

1-15%

20-55cmol(+)/kg

tall grass prairie,

Ren

3-6

2000-4000 kgN/ha

wheat and grain sorghum, tall and mid grasses

Steedman

5-6

high

high

2

24 cmol(+)kg

grain sorghums

Woodson

65-100%

5-7

0-1.5

3%

25-30cmol(+)/kg

soybeans, grain sorghums, wheat, corn, and alfalfa.

Yaggy

3-5%

2-3

Wheat, grain sorghum, and alfalfa