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Ferguson College of Agriculture

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Submitting Samples

Soil, water and plant samples should be submitted through your County Cooperative Extension Office. They provide sample bags and water bottles and handle mailing of samples to the laboratory. Your County Extension Educators can assist with proper sampling techniques, test result interpretations and recommendations.

 

Quality Assurance

Accuracy and quality of test results are assured through daily analysis of quality control samples, a three-step internal data review process, and participation in external certification and sample exchange programs. For detailed information regarding our quality assurance practices, call the SWFAL office.

 

Sample Results

Most samples are processed and analyzed within three to five working days and results are posted on the internet. Forage nitrate results are posted two days after samples are received. Charges for laboratory services are billed monthly from the office through which the sample was submitted.


 

Forage and Feed

Protein Only
Type Price
Protein Only $8.00

 

Basic
Type Price
Protein & Moisture
ADF (Acid Detergent Fiber)
TDN (Total Digestible Nutrients)
Net Energy for: Gain; Lactation; and Maintenance
$14.00

 

Basic Plus RFV
Type Price
Protein, Moisture, ADF, & Energy
NDF (Neutral Detergent Fiber)
RFV (Relative Feed Value - for alfalfa only)
$20.00

 

Nitrate Toxicity
Type Price
Nitrate
Moisture
$6.00

 

Minerals
Type Price
Ca, P, K, Mg, S, Cu, Fe and Zn $15.00

 

NIR (Near Infared Relectactance Spectroscopy)

General NIR
Type Price
Dry Matter, Protein, ADF, NDF $10.00
LIGNIN $4.00

 

Plant Tissue

Type Price
TN, P, K, Ca, Mg, S, B, Cu, Fe, Mn, and Zn $23.00

 

Animal Waste & Compost

Test 1
Type Price
pH, EC, Moisture, TN, C, S, P, K, Ca, Mg, Na, Cu, Zn, Mn and Fe $30.00

 

Test 2
Type Price
NH4-N and NO3-N $6.00

 

Test 3
Type Price
Water Soluble P $8.00

 

Soil

Soil Fertility
Type Macronutrients & Minerals Price
Routine pH and buffer Index (Sikora)
Nitrate-Nitrogen
Available Phosphorus Index (MIII)
Available Potassium Index (MIII)
$10.00
Subsoil Nitrate-Nitrogen (with submission of surface soil) $2.00
Nitrate-Nitrogen   $4.00
Secondary Nutrients Sulfate-Sulfur
Magnesium and Calcium
$4.00
Micronutrients Iron, Zinc and Boron $4.00
Organic Matter   $8.00
Greenhouse Media
(Saturated Media Extraction) 
  • Sodium
  • Phosphorus
  • pH
  • Calcium
  • Sulfur
  • Nitrate-N
  • Magnesium
  • Boron
  • Ammonium-N
  • Potassium
  • Electrical Conductivity
$20.00

 

Soil Salinity
Type Macronutrients & Minerals Price
Salinity Management
(1:1 extraction for diagnostic purposes)
  • Sodium
  • Magnesium
  • Calcium
  • Potassium
  • pH
  • Total Dissolved Solids
  • Boron
  • Electrical Conductivity
  • SAR
  • ESP
$30.00
Comprehensive Salinity
(Saturated paste extraction)
  • Sodium
  • Magnesium
  • Calcium
  • Potassium
  • Chloride,
  • Nitrate-Nitrogen
  • Sulfate,
  • Electrical Conductivity
  • Carbonate
  • Bicarbonate
  • pH
  • Total Dissolved Solids
  • Boron
  • ESP
  • SAR
$70.00
Soil Texture Textural Class (Hydrometer Method) % sand, silt, clay $14.00

 

Water

H2O
Type Macronutrients & Minerals Price
Homebrewer
  • Sodium
  • Sulfate
  • Calcium
  • Phosphorus
  • Magnesium
  • Iron
  • Potassium
  • Zinc
  • Copper
  • Hardness
  • Manganese
  • Electrical Conductivity
  • pH
  • Total Dissolved Solids
  • Alkalinity
  • Nitrate
  • Chloride
$21.00
Household
  • Sodium
  • Sulfate
  • Calcium
  • Chloride
  • Magnesium
  • Nitrate
  • Potassium
  • pH
  • Copper
  • Hardness
  • Iron
  • Electrical Conductivity
  • Manganese
  • Total Dissolved Solids
  • Zinc
$18.00
Livestock
  • Sodium
  • Sulfate
  • Calcium
  • Chloride
  • Magnesium
  • Nitrate
  • Potassium
  • pH
  • Copper
  • Hardness
  • Iron
  • Electrical Conductivity
  • Manganese
  • Total Dissolved Solids
  • Zinc
$18.00
Irrigation
  • Sodium
  • Magnesium
  • Calcium
  • Potassium
  • Chloride
  • Nitrate
  • Sulfate
  • Electrical Conductivity
  • pH
  • Total Dissolved Solids
  • Boron
  • Hardness
  • Carbonate
  • Bicarbonate
  • SAR
$18.00

 

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