Mehlich III Full + Recs
Affordable, Actionable Soil Test with Essential Nutrient Data and Targeted Guidance
A Trusted Standard in Soil Testing—Now With Fertility Insights
The Mehlich III Full + Recommendations package is a practical, cost-effective option for growers, landscapers, and consultants who need a complete soil nutrient profile with basic guidance for improving soil health and fertility. It combines the widely-used Mehlich III extraction method with tailored recommendations to help you make smarter nutrient decisions—without the guesswork.
This is the perfect middle ground for growers who want more than raw data, but don’t need a fully customized consultation.
What’s Included in Your Analysis
Soil Health & Composition
- pH
- Electrical Conductivity (EC)
- % Active Organic Matter
- Sodium Adsorption Ratio (SAR)
Macronutrients
- Nitrate-Nitrogen (NO₃-N)
- Total Phosphorus (P)
- Total Potassium (K)
- Sulfate-Sulfur (SO₄-S)
Base Cations: Total & Soluble
- Total Calcium (Ca) + Soluble Calcium (Ca)
- Total Magnesium (Mg) + Soluble Magnesium (Mg)
- Total Sodium (Na) + Soluble Sodium (Na)
What You’ll Receive:
- Lab-Verified Nutrient Data
Presented in parts per million (ppm), with clearly labeled values for total and soluble fractions - Limited Fertility Recommendations
Focused advice on how to adjust your NPK and cation levels based on the test results - Brief Interpretation Notes
Understand which values are high, low, or balanced, and where to start with corrections
Who This Test is Ideal For:
- Growers in acidic to neutral soils using standard fertility programs
- Landscapers and turf managers maintaining athletic fields, lawns, or installations
- Soil consultants managing budgets or preliminary site evaluations
- Compost & amendment suppliers evaluating nutrient loads
- Regulatory contractors or project managers who need a standard method for TCEQ, NRCS, or EQIP reporting with basic fertility input
A Note on Soil Type Compatibility
The Mehlich III extraction method was developed for acidic to neutral soils. In alkaline soils, it may overestimate plant-available nutrients —especially phosphorus and micronutrients. If you’re working in calcareous or high-pH soils, we recommend our Plant Natural® Soil Test for more accurate plant-available data.
Sample & Turnaround Info
- Minimum Sample Size: 3–4 cups
- Turnaround Time: 3–5 business days from lab receipt
- Report Format: Digital PDF report with values and basic fertility recommendations
- Sampling Kit: Not included (use a quart-sized Ziploc for easy submission)
Order the Mehlich III Full + Recommendations Soil Test Today
Get lab-verified results and straightforward recommendations—no fluff, no confusion. Ideal for acidic soils and general fertility planning.
Frequently Asked Questions
- What are your business hours?
Our office is open Monday thru Friday from 8 am to 5 pm. We do close for major holidays, so we recommend ordering your testing and sending your sample early if a holiday is coming up. You can always reach us by email. Just send us a message at info@tpslab.com
- When will I get my results?
We understand that you need your results as soon as possible. That is why we make sure to begin processing your samples as soon as they arrive at our laboratory. When the results are ready, we will email them to the email address you provided on your submittal form. The list below will give you an idea of our usual turnaround times.
Soil Tests: 5-7 Business days
Water Tests: 5 - 7 Business days
Plants Tests: 24 - 48 Hours
Compost Tests: 7 - 14 Business days
Fertilizer Tests: 3 - 5 Business days
Heavy Metals Test: 7 - 14 Business days
We offer a rush option for an additional 50% of the testing cost, but we would encourage you to give yourself time to test before you get to a point where a rush is needed.
