Soil Series Atlas

Holdrege soil series

Fine-silty, mixed, superactive, mesic Typic Argiustolls

050100150200cm1 ft2 ft3 ft4 ft5 ft6 ftApTopsoil · plowed0–15 cm · 0–6 inATopsoil15–30 cm · 6–12 inBt1Subsoil · clay build-up30–38 cm · 12–15 inBt2Subsoil · clay build-up38–61 cm · 15–24 inBCSubsoil grading to parent material61–76 cm · 24–30 inCParent material76–203 cm · 30–80 in050100150200cmApTopsoil · plowed0–15 cm · 0–6 inATopsoil15–30 cm · 6–12 inBt1Subsoil · clay build-up30–38 cm · 12–15 inBt2Subsoil · clay build-up38–61 cm · 15–24 inBCSubsoil grading toparent material61–76 cm · 24–30 inCParent material76–203 cm · 30–80 in
Typical pedon, to scale: 203 cm (80 in), 6 horizons.

Mollisols — soils with a thick, dark, organic-rich topsoil

With 2.79 million acres mapped, Holdrege is the 18th-largest of 24,791 U.S. soil series. In Nebraska only one series covers more ground. It is the largest of the 9 established series in its family. It is the state soil of Nebraska.

Depth
Very deep
Drainage
Well drained
Water movement
Moderate

Compare with another seriesSimilar series in the finder

Where Holdrege is mapped

2,786,821 acres in 62 soil survey areas, from current SSURGO data.

In the field

Drainage

Well drained

Drains fastStays wet

Soil depth

Very deep

ShallowDeep

Permeability

Moderate

SlowFast
Parent material
Loess
Landform
Uplands
Type location
Nebraska

How it is classified

  1. OrderMollisols
  2. SuborderUstolls
  3. Great groupArgiustolls
  4. SubgroupTypic Argiustolls
  5. FamilyFine-silty, mixed, superactive, mesic Typic Argiustollsfine-silty particle-size classmixed mineralogy classsuperactive cation-exchange activity classmesic soil temperature regime

Against other Mollisols

Holdrege makes up 0.64% of all mapped Mollisols — the 8th largest of 7,593 series in the order.

Solum thickness (topsoil + subsoil)

76 cm under a median of 104 cm

Depth to the subsoil

30 cm over a median of 25 cm

Depth described

203 cm over a median of 152 cm

Its relatives

8 other established series share the family “Fine-silty, mixed, superactive, mesic Typic Argiustolls”

  1. Holdrege2.8 M
  2. Highmore666 k
  3. Eakin379 k
  4. Agar245 k
  5. Northdale91 k
  6. Monticello72 k
  7. Paka67 k
  8. Vale46 k
  9. Fairlo8 k

Horizon by horizon

HorizonLayerDepthThickness
ApTopsoil: plowed0–15 cm0–6 in15 cm
ATopsoil15–30 cm6–12 in15 cm
Bt1Subsoil: clay build-up30–38 cm12–15 in8 cm
Bt2Subsoil: clay build-up38–61 cm15–24 in23 cm
BCSubsoil grading to parent material61–76 cm24–30 in15 cm
CParent material76–203 cm30–80 in127 cm

Sources: USDA–NRCS Official Series Description (revised 2018-06), Soil Classification database and SSURGO. Ranks computed by Soil Series Atlas. Method · Guides