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Why Guess When You Can Test?

Accurate soil test results build the foundation of a strong soil fertility program. 

Sampling Guide

Scroll down the page for sampling instructions or Click Here for a PDF copy. 

Information Sheets

Simply fill-out and print an information sheet to include with your samples. Please enter all essential information and include a completed info sheet with each sample shipment.

Benefits of Soil Testing

  • Evaluate fertility status and monitor soil conditions to track trends over time
  • Improve yields and profitability from providing proper nutrients
  • Increase the uniformity of nutrient availability across a field
Routine Soil Test:

Includes pH, Buffer pH Index (if pH is less than 6.5), Organic Matter                                             

& a UW field or
Vegetable Crop Fertilizer Recommendation
Basic Soil Test:

Includes pH, Buffer pH Index (if pH is less than  6.5)

Organic Matter
Phosphorus,& Lime Recommendation
Special Soil Tests:

Calcium & Magnesium with CEC

Soluble Salts
Pre-Side Dress Nitrate Nitrogen
Pre-Plant Profile Nitrogen
Soybean Cyst Count
Soybean Cyst Egg Count

Soil Sampling/PGS Mapping/VRT
Services are available please contact the lab for pricing information.

Nutrient Management Plan (NMP) Writing Services
Services are available please contact the lab for pricing information.
Other Packages: 

Lawn & Garden Test - Includes Routine Soil Test, Soluble Salts & Recommendation

Soli Doctor Kit - Includes Soil Lawn and Garden Test, instructions for sampling, & a pre-paid postage mailer to send in sample to the laboratory.

Wildlife Food Plot Kit - Includes Routine Soil Test, instructions for sampling, & a pre-paid postage mailer to send in sample to the laboratory.
Specialty Crop Soil Packages

Cranberry Package 
Fruit or Christmas Tree Package
Ginseng Package
Basic Specialty Crop Package


Soil Sampling Instructions

Soil testing is the most important single guide to the profitable application of fertilizer and lime. When soil test results are combined with information about the nutrients that are available to the various crops from the soil profile, the farmer has a reliable basis for planning the fertility program on each field. Where high rates of manure have been applied, testing may point out areas of excessive nutrients.

Equipment: a soil probe is the best implement for taking soil samples. A complete line of probes is available to meet every sampling need. You will also need a bucket and soil sampling bags.

There are two sampling methods that are recommended, both have advantages and can be used effectively:

  1. Sampling by grid
  2. Sampling by soil types.

Grid samples are normally taken in 330-foot square blocks (2.5 acres) or in 440-foot square blocks (4.45 acres per sample). This network is followed across the field regardless of soil type. The pre-dominate soil type is pulled out of each grid.

For sampling by soil type an ASCS map is needed. Composite cores are pulled from the same soil type.One sample can represent up to 20 acres if it is taken within the same soil type. The operator must be able to recognize these different soil types on the ground. With stalk or straw residue this may be difficult.

If care is taken in pulling the soil samples, sampling can be done once every 2-4 years. It is not necessary to pull samples every year when samples are taken properly in the first place as the soil is a buffered system and does not change very rapidly.

It is important to take samples to the proper depth (7 inches). Even the reduced tillage systems should be taken to this depth, as this depth is what all the research is based upon. If you wish to check for the amount of nutrient layering in reduced tillage, a separate set of samples should be taken. When this is done, the cores are normally split into the 0-2 inch and the 2-7 inch segments.

The basic idea is to get a sample that represents the area being tested.

Fill out the information sheet as completely as possible and a recommendation will be made. The recommendations can be adjusted to suit local recommendations and management level.

Handling and Shipping Soil Samples

  • Protect moist soil samples from temperatures above 75 degrees F.
  • Samples must be delivered for analysis within 48 hours of taking the sample or else frozen to stop bacterial action. Mailing usually poses no problem if the samples spend no more than two days without refrigeration. Samples will be protected as soon as they are received.                      
  • Sample Bags: Paper bags are acceptable if the soil is dry. (We furnish one bag per sample free.)                      
  • Cloth sampling bags are more durable. They allow soil to dry out or be frozen. (Cloth bags are available for a small fee.)                      
  • Individual soil bags must be filled to the fill-to-line with soil.
  • Label the bag with the sample number, name and address information.
  • Make sure sample matches with form.
  • Make sure to include account number, soil code, crop codes, and desired analyses on form.
  • Fill shipping box completely with individual samples so the bags won't move around during shipping. (Use newspaper if needed to fill empty spaces)
  • Double-check and make sure the forms in the shipping box match the samples.