Lab Testing Packages

United Soils. Inc., prides itself on delivering the highest quality results. Our quality control methods follow high industry standards to ensure accuracy and precision of each and every test result. We participate in three separate industry proficiency and certification programs to ensure our test quality. We double and triple check, so you don't have to.

Soil Fertility

S1

Fertility & Macronutrients: pH, Phosphorus, Potassium, Color Match Organic Matter, Buffer pH, Calcium, Magnesium, CEC, and % Base Saturations

S2
Fertility, Macros & Micronutrients: S1 + Sulfur, Zinc, Iron, Manganese, Copper, and Boron

S8
Fertility, Macros, Micros & LOI OM: S2 + Organic Matter (LOI)

LG2
Lawn-Garden Sample: S2 + Fertility Recommendations: Recommendations based on state university guidelines and email consultation with the client.

LG8
Lawn-Garden Sample: S8 + Fertility Recommendations: Recommendations based on state university guidelines and email consultation with the client.

Hands holding dark, rich soil.
Hands holding a small green plant.

Micronutrients

All micronutrients are extracted using DTPA or Monocalcium Phosphate.

S3
S, Zn, Fe, Mn, Cu, B

S5
Zn, S, B

S6
Any individual micronutrient

Soil Nitrate Sample Collection

PSNT 1
(Depth 12-24) per Sample Site Collection Fee

PSNT 2
(Depth 12-24) per Sample Site Collection Fee

Travel Fee
per hour for service tech travel To & Between the field(s) min

  • USI utilizes ATV units with sub-meter GPS receivers.
  • Samplers follow client instructions or university handbook pulling recommendations (# of samples & depth).

Soil test methods based on procedures described in North Central Regions Recommended Chemical Soil Test Procedures: https://extension2.missouri.edu/sb1001

Person in gloves handling soil and test tube.
Hands holding a small seedling in soil.

Plant-Tissue Sample Analysis Packages

PT1
Mineral Package: Phosphorus, Potassium, Magnesium, Calcium, Sulfur, Iron, Manganese, Boron, Copper, and Zinc

PT2
Standard Package: Nitrogen (N) + PT1 Mineral Package: Total Nitrogen, Phosphorus, Potassium, Calcium, Sulfur, Iron, Manganese, Boron, Copper, and Zinc

Individual Plant-Tissue Sample Analysis

PT3
Nitrogen (N) Only

PT3C
Total Carbon (C) Only

PT5
CSNT Nitrate-Nitrogen: Corn Stalk Nitrate Test

Plant-Tissue Sample Collection

  • Precise plant-tissue results are possible only when carefully selected plant material is submitted for analysis.
  • Accurate sampling requires that select parts of a plant are collected at certain stages of plant development.
  • A plant's nutritional condition differs for each variety, stage of development, and growing area. It is recommended to select plant tissue representative of a particular variety and growing area. Place samples in unlined paper bags.
  • If tissue sampling is used to troubleshoot problem areas, it is very helpful to sample not only the 'problem' areas but also the 'normal' growth areas in the same field for comparison purposes. It is encouraged to pull representative soil samples at the same time as plant samples.
  • What Not to Sample: Diseased or dead plant material; plant tissue damaged by insects and/or mechanical equipment; plant tissue which has been stressed by excesses of cold, heat, or moisture; seeds should NOT be sampled as they do not reflect the nutritional status of the whole plant.
Child planting a corn seedling at sunset.
Lush garden with various green plants.

Lawn & Garden Samples

For Clients who pull their own garden/lawn/food plot samples & require consulting/fertilizer recommendations.

LG2

Fertility, Macros & Micronutrients + Fertility Recommendations: pH, Buffer pH, Phosphorus, Potassium, Color Match Organic Matter, Calcium, Magnesium, CEC, % Base Saturations, Sulfur, Zinc, Iron, Manganese, Copper, and Boron. Recommendations are based on state university guidelines and email consultation with the client.

LG8

LG2 + LOI OM: Recommendations based on state university guidelines and email consultation with the client.

Soil test methods based on procedures described in North Central Regions Recommended Chemical Soil Test Procedures: https://extension2.missouri.edu/sb1001

Specialty Soil Packages

Total Inorganic N
Soil Extractable Nitrate-N & Ammonium-N

PSNT & Soil Nitrate-N or Ammonium-N

Soybean Cyst Nematode

Cyst Count

Total N & Total C

Specialty Soil Tests: Olsen, Bray 1, Bray 2, Special Buffer, 2:1, Salt pH

Hand holding soil with nutrient data overlay.

Partnered Lab Analysis

Contact USI for details. These analyses are completed by a partnered lab. Shipping costs & turnaround times vary.

H1

Haney Soil Health Test

CN

Corn Nematode

M1 - Manure

Moisture/Total Solids, Total Nitrogen, Phosphate, Potash, Sulfur, Calcium, Magnesium, Sodium, Iron, Manganese, Copper, Zinc, pH, Ammoniacal Nitrogen, Organic Nitrogen

C1 - Compost

Moisture/Total Solids, Total Nitrogen, Phosphate, Potash, Sulfur, Calcium, Magnesium, Sodium, Iron, Manganese, Copper, Zinc, pH, Ammoniacal Nitrogen, Nitrate Nitrogen, Organic Matter, Ash

L1 - Lagoon

Conductance Kjeldahl Nitrogen, Ammonical Nitrogen, Organic Nitrogen, pH, Phosphorus, Potassium, Sulfur, Magnesium, Calcium, Sodium, Iron, Manganese, Copper, and Zinc

Hands holding soil and a young plant.