SOIL IN SYNC

Understand your soil.
Plan your next step.

Soil tests, water results and amendment planning in one place.

Open Calculator Explore the Crescive approach

Start with your test results

Open your separate Logan Labs Mehlich 3 and saturated paste PDFs, use a spreadsheet, or enter results by hand.

Review the values, confirm your soil dimensions, then compare documented amendments and application amounts.

Keep the rest of your plan together

Water tests

Read supported Wallace Labs reports and see existing nutrients, ratios and contributions to a liquid batch.

Review your water

Pots and beds

Set container sizes, treatment depth and soil density before calculating an addition.

Plan your soil setup

Soil test trends

Keep test dates together and compare measurements over time.

Open your soil history

The Crescive approach

Learn how Scott and Sara connect biology, mineral testing, compost and continued observation.

Read the method overview

The people behind this project

Our approach is strongly influenced by Scott and Sara Skamnes of Crescive Soil.

The calculator builds on the original mineral-balancing spreadsheet and formulas created by Godai Furuta.

The Living Soil Supplies team is Jarrod Scully, Godai Furuta and Aaron Uller.

Meet our influences and learning resources

Already using the calculator?

Saved histories and app data stay with the website address and browser where you created them.

Before switching addresses, save your calculation, soil histories and container setup as backup files.

Open the existing calculator address to save or reopen your work.

Read the backup and offline instructions.

Products and testing, later

Aloe vera flakes and testing services may return here through Shopify.

For now, the calculator and learning tools are the focus.

Living Soil Supplies. Your imported files stay on your device.

Build your own version

Copy a starting prompt into ChatGPT or another coding assistant, then adapt it to your needs.

These prompts describe the framework and workflows. They are not the source code, a bundled dataset or a promise of an identical result.

Check the reuse terms for any third party text, images, recordings or datasets before including them in your version.

Starting prompt for Living Soil Supplies

Build a mobile friendly soil and water test workspace inspired by Living Soil Supplies.
Start with a homepage that links to a calculator, pots and beds planner, water readouts, test history, report viewer, learning resources and offline access.
Keep each task clear and put long explanations in expandable sections.
Use short sentences with space between them.

Let people open separate Logan Labs Mehlich 3 and saturated paste reports, choose the matching samples and review imported values before using them.
Support local PDF and spreadsheet parsing when practical, plus manual entry.
Keep original units, chemical forms, sample identifiers and test methods visible.
Missing, uncertain or unsupported values must remain unknown rather than become zero.
Use fictional examples until the user confirms their own values.

Calculate soil mass from confirmed dimensions, depth and bulk density.
Show nutrient gaps, attributed ratio references, application limits and product amounts with the arithmetic explained.
Allow multiple products for one element and keep shares at 100 percent.
Count all known accompanying nutrients without adding the same contribution twice.
Keep nitrate results separate from total nitrogen additions.
Keep Soil Symbiotics out of the mineral amendment selectors and describe any verified directions separately.
For water reports, show measured concentrations, ratios and amounts already present in the selected water volume.
Do not treat the water readout as a balancing prescription.

Process personal reports locally, provide backup and restore files, and test calculations with synthetic fixtures.
Package the interface and permitted data for offline use.
Explain which external resources still need internet access.
Cite sources and dates for technical targets and product analyses.
Do not copy private reports, paid course material or restricted datasets.
Ask for reuse terms before redistributing third party content.

Deliver a working first version, instructions and a list of unverified assumptions.
To adapt this framework to another topic, replace the data and calculation rules while preserving review, provenance, local storage and export.

Download build prompt

Copy the prompt or download a text file.