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Proven in the field • South Dakota

Turn Every Acre into Profit with Data-Driven Soil Consulting

We help farmers grow smarter, not harder — with precision sampling, expert analysis, and tailored fertility plans.

Experience
20+ yrs
Clients
250+
Acres
500k+
Schedule a Soil Assessment See How It Works

Trusted by leading growers & applicators

Healthy crops and profitable acres

“We cut fertilizer waste and increased yield within one season.”
— Local corn producer

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Why South Dakota Farmers Trust Us

Independent, data-driven advice that puts your profit first — not product sales.

100% Independent

No ties to fertilizer or seed companies. Our only agenda is maximizing your ROI through honest, accurate data.

Field-Ready Prescriptions

GPS-formatted maps that load directly into your equipment. No tech headaches, just plug-and-play precision.

Year-Round Partnership

We monitor weather, adjust recommendations mid-season, and provide ongoing support. You're never on your own.

Simple • Proven • Repeatable

How We Get You Results

From sample to strategy to season-long success.

  1. 1

    Soil Sampling

    Zone sampling with GPS accuracy to reveal nutrient variability and management zones.

    • RTK / GPS logged points
    • Zone + grid strategies
  2. 2

    Lab Analysis

    Full panel testing for pH, OM, P, K and micros to understand limiting factors.

    • Actionable metrics, not noise
    • Clear map overlays
  3. 3

    Custom Fertility Plan

    Tailored fertilizer & lime recs by zone with executable prescriptions for your applicator.

    • Shapefiles & PDFs included
    • ROI-focused recommendations
  4. 4

    Season-Long Support

    We monitor, adjust, and advise throughout the season so plans stay aligned with conditions.

    • In-season check-ins
    • Rapid plan adjustments
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Our Services

Complete soil management solutions from sampling to application

Precision Soil Sampling

GPS-guided grid sampling (2.5-5 acre zones) for pinpoint accuracy in nutrient mapping.

  • GPS-marked coordinates
  • Full nutrient panel
  • 5-7 day turnaround
MOST POPULAR

Variable Rate Prescriptions

Custom fertility maps optimized for your fields, equipment, and budget constraints.

  • Equipment-ready formats
  • Multi-crop recommendations
  • Unlimited revisions

Yield Analysis & Mapping

Turn harvest data into actionable insights. Identify problem areas and profit zones.

  • Multi-year comparisons
  • Profit zone mapping
  • Trend analysis reports

Agronomic Consulting

Year-round expert guidance on crop planning, fertility, and problem-solving.

  • On-call field support
  • Mid-season adjustments
  • Problem diagnostics

Need a custom package for your operation?

Request a Custom Quote

Real Results, Real Farms

What growers say after one season with PSM.

“The maps were spot-on. We cut inputs and still raised our best corn.”
— 3,000 ac corn/soy producer
“Simple plans our applicator could run with immediately.”
— Custom applicator partner
“Clear ROI. We’re expanding acres with PSM next year.”
— Family farm, SD

Ready to Maximize Your Yield Potential?

Join 500+ farmers who trust us with their soil management. Get started with a FREE consultation.

Schedule FREE Consultation Call: 605-302-0085

Talk With Our Team

Tell us about your operation and goals.

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Visit / Mail

1408 E 8th Ave
Redfield, SD 57469

Call

Office: 605-302-0085
Francis Schaffer: 605-380-1073

Email

Francis@precisionsoil.com