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Agricultural Service Laboratory

Codes For Soil Samples

Acreage Crop Codes

All Recommendations for these crops will be given per acre.

Homeowners see square footage crop codes further below.

Agronomic Crops

  • 000 No recommendations given
  • 050 Alfalfa
  • 007 Annual legumes (Arrowleaf, Yuchi, Crimson, Clover, etc)
  • 005 Annual legumes on summer grass pasture (Bahia, Dallis, or Bermudagrass)
  • 006 Annual legumes on winter grass pasture (Ryegrass and/or Small Grain)
  • 033 Bahiagrass Pasture
  • 035 Coastal Bermudagrass, Establishment
  • 034 Coastal Bermudagrass Pasture
  • 036 Coastal Bermudagrass or Bahiagrass Hay
  • 104 Canola
  • 031 Cool-Season Perennial Grass Pasture (Fescue)
  • 032 Cool-Season Perennial Grass Pasture (Orchardgrass)
  • 037 Cool-Season Perennial Grass-Legume Pasture
  • 419 Hemp

Corn & Grain

  • C80 80 bu/A
  • C90 90 bu/A
  • C100 100 bu/A
  • C110 110 bu/A
  • C120 120 bu/A
  • C130 130 bu/A
  • C140 140 bu/A
  • C150 150 bu/A
  • C160 160 bu/A
  • C170 170 bu/A
  • C180 180 bu/A
  • C190 190 bu/A
  • C200 200 bu/A
  • C210 210 bu/A
  • C220 220 bu/A
  • C230 230 bu/A
  • C240 240 bu/A
  • C250 250 bu/A
  • 021 Corn (in rotation before soybeans)
  • 023 Corn for silage

Cotton

  • 001 Dryland Cotton
  • 002 Irrigated Cotton

  • 049 Fescue Hay
  • 025 Grain Sorghum or Grain Sorghum in rotation after Wheat, Millet, Sudan
  • 024 Grain Sorghum for silage, Sudan
  • 010 Lespedeza, Common
  • 011 Lespedeza, Sericea
  • 008 Peanuts
  • 009 Perennial Peanuts
  • 012 Rice, Upland, Irrigated
  • 003 Sesame
  • 029 Small Grain for grain (Barley, Canola, Oats, Chufa, Flax, Hops, Milo, Rice, Rye, Wheat)
  • 030 Small Grain (in rotation before soybeans)
  • 097 Small Grain Silage

Soybeans

  • S30 30 bu/A
  • S40 40 bu/A
  • S50 50 bu/A
  • S60 60 bu/A
  • S70 70 bu/A
  • S80 80 bu/A

  • 019 Soybeans with Sorghum silage
  • 027 Sugarcane
  • 028 Sunflowers
  • 026 Sweet Sorghum, Switch Grass, Sweetgrass
  • 038 Temporary Annual Grazing, Winter, Rye
  • 039 Temporary Annual Grazing, Summer, Millet/Sudan, Browntop & Pearl Millet
  • 098 Tobacco Bed
  • 099 Tobacco

Wildlife

  • 140 Dove Field – Corn or Grain Sorghum
  • 141 Dove Field – Peredovic Sunflower
  • 142 Fall Deer – Forage Alfalfa
  • 143 Fall Deer – Forage Chicory
  • 144 Fall Deer Mix – Brassicas
  • 145 Fall Deer Mix – Cool Season Annual Grasses (including oat, rye, wheat, triticale)
  • 146 Fall Deer Mix – Cool Season Grasses with Clover
  • 147 Fall Deer Mix - Legumes (including clovers, Austrian winterpeas)
  • 101 Warm Season Grasses for Wildlife (including chufa)
  • 102 Warm Season Legumes for Wildlife (including alyceclover, asechynomene, and lablab)
  • 103 Warm Season Legume/Grass Mix for Wildlife (including millets)

Truck Crops

  • 051 Asparagus, establishing
  • 066 Asparagus, maintenance
  • 060 Beets
  • 061 Broccoli
  • 120 Brussels Sprouts
  • 062 Cabbage
  • 052 Cantaloupes (or mixed melons) (bareground)
  • 132 Cantaloupes (or mixed melons) (plasticulture)
  • 063 Carrots
  • 079 Cauliflower
  • 064 Collards
  • 053 Cucumbers (bareground)
  • 133 Cucumbers (plasticulture)
  • 065 Eggplant (bareground)
  • 134 Eggplant (plasticulture)
  • 014 Gourds
  • 072 Leafy Greens, Kale
  • 122 Leek
  • 054 Lettuce (Endive, Escarole, Leaf, and Romaine)
  • 055 Lime Beans
  • 056 Okra
  • 068 Onions, Bulb
  • 067 Onions, Green
  • 121 Mustard
  • 127 Parsley
  • 125 Parsnip
  • 126 Pea, English
  • 073 Peas, Blackeyed and Southern
  • 069 Pepper (bareground)
  • 131 Pepper (plasticulture)
  • 070 Pole Beans
  • 095 Potatoes, Irish
  • 076 Potatoes, Sweet
  • 014 Pumpkins, Gourds
  • 130 Radish
  • 124 Rutabaga
  • 057 Snapbeans
  • 073 Southern Peas (Black-eye Peas)
  • 071 Spinach
  • 058 Squash (Winter)
  • 129 Squash (Summer)
  • 075 Sweet Corn
  • 078 Tomatoes (bareground)
  • 128 Tomatoes (plasticulture)
  • 123 Turnips
  • 059 Watermelon

Golf Course and Other Turf Crops

  • 040 Athletic Fields
  • 042 Bentgrass Golf Green
  • 043 Bermudagrass Golf Green/Tee
  • 106 Carpetgrass
  • 107 Centipedegrass
  • 112 Cool-Season Grass Maintenance (Orchard, Kentucky Bluegrass, Ryegrass)
  • 041 Golf Fairway
  • 045 Roadside Turf Establishment
  • 046 Roadside Turf Maintenance
  • 105 St. Augustinegrass
  • 113 Turf Establishment
  • 114 Warm Season Grass Maintenance (Zoyziagrass, Bermuda, Bahia)

Fruit and Nut Crops

  • 080 Apple
  • 082 Blueberries
  • 084 Grapes (Bunch or Muscadine), Scuppernong
  • 013 Kiwi
  • 085 Nectarines
  • 086 Peaches, Citrus, Apricots, Persimmons
  • 081 Pears
  • 088 Pecans
  • 087 Plums
  • 074 Strawberries, Blackberries, Brambles, Raspberries

Flowers, Shrubs, and Trees

  • 108 Annual Flowers
  • 109 Azaleas
  • 109 Camellias
  • 092 Christmas Trees
  • 110 Perennial Flowers
  • 211 Pine Trees
  • 109 Rhododendron
  • 108 Roses
  • 117 Shrubs
  • 109 Tea

Square Footage Crop Codes

Homeowners see square footage crop codes below.

Lawns and Small Area Turfs

  • 111 Bentgrass Golf Green
  • 118 Bermudagrass Golf Green or Tee
  • 093 Carpetgrass
  • 094 Centipede
  • 044 Cool-season Grass Maintenance – Tall Fescue, Winter Rye, Orchardgrass
  • 119 St. Augustinegrass
  • 047 Turf Establishment (use Crop Code 093 or 094 when establishing Carpetgrass or Centipede)
  • 048 Warm-season Grass Maintenance – including Zoysia, Bermuda, Bahia, etc (does not include Centipede, Carpetgrass or St. Augustinegrass)

Shrubs and Flowers

  • 017 Annual flowers, wildflowers
  • 096 Azaleas
  • 096 Camellias
  • 016 Perennial Flowers, ivy, wildflowers, groundcover
  • 096 Rhododendron
  • 017 Roses
  • 015 Shrubs, Tea Olives, Oleander
  • 096 Tea

Trees and Home Orchards

  • 205 Apple trees
  • 202 Blackberries, Raspberries
  • 203 Blueberries
  • 206 Fig trees, Pomegranate
  • 204 Grapes, Muscadine, Scuppernong
  • 212 Palm trees
  • 208 Peach trees, Citrus, Apricots, Persimmons
  • 207 Pear trees
  • 210 Pecan trees
  • 211 Pine trees
  • 209 Plum trees
  • 201 Strawberries
  • 018 Trees, ornamental and shade

Vegetable Garden

  • 090 Home Garden – including herbs (inorganic fertilization)
  • 091 Home Garden – including herbs (organic fertilization)

Soil Codes

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Major Land Resource Areas

  • Southern Blue Ridge - Soil Code: 3
  • Southern Piedmont - Soil Code: 4
  • Sandhills - Soil Code:  1 or 2
  • Southern Coastal Plain - Soil Code: 3, some 1 or 2
  • Atlantic Coast Flatwoods - Soil Code: 1, 2, 3, 4, or 6
  • Tidewater Area - Soil Code: 1, 2, 3, 4, or 6

Soil Codes

  1. Sandy, coarse-textured soils where the depth to the clay layer is greater than 40 inches.  These soils are sands or loamy sands throughout with no obvious change in soil texture to a depth greater than 40 inches.
  2. Coarse loamy textured soils where the depth to the clay layer is 20 to 40 inches.  The surface materials are sands or loamy sands to a depth of 20 inches and not more than 40 inches.  Underlying materials and sandy loams, sandy clay loams and clay loams.
  3. Fine loamy soils.  The depth to the clay layer is less than 20 inches.  Surface soil materials are mostly loamy sands, sandy loams and fine sandy loams to a depth of less than 20 inches.  Subsoil materials are sandy clay loams, clay loams, silt loams and silty clay loams.  A subsoil test for potassium, magnesium and sulfur would be helpful when making a fertilizer recommendation for these soils.
  4. Clay on surface.  Surface soils are mostly sandy loams, fine sandy loams, silt loams and clay loams.  Subsoils are clay, sandy clays silty clays and heavy clay loams.
  5. Subsoil samples – top 4 inches of clay layer.
  6. Organic soils.  Soils from Carolina Bays and soils with greater than 10 percent soil organic matter.