Quadros Bio
Solum · Integrating the determinants of soil function

See how your
soil lives.

A routine soil analysis quantifies a narrow subset of the abiotic phase, and none of the biological processes that phase governs. Solum integrates the whole system, soil chemistry, texture, land management and history, climate and geographic setting, to determine which factors govern those processes in a given soil, and where they are constrained: nitrogen cycling, carbon retention, and the functional capacity of the community that performs them. No single variable governs a living soil, which is why the factors are evaluated jointly.

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Solum, integrating the determinants of soil function

The living record

23,322

soils screened into the engine

6,731

soils modelled, chemistry measured on the same core as the DNA

2,892

bacterial genera, on one taxonomic backbone

12

trait groups reported, of 15 defined

39

soil chemical and physical variables, measured or joined

528

peer-reviewed studies reviewed to build it

8

reference databases integrated

215,955

samples identified for reprocessing

35

countries the engine has processed

These figures were regenerated from the record store on 2026-08-24 and grow as reprocessing runs.

What Solum reads

Every soil is a response to its conditions. Solum reads that response.

Geography

the site, and the native system the field belongs to

Soil chemistry

the measured physicochemical conditions the community inhabits

Land management

how tillage, inputs, and cropping have altered it

Environment

the climate and weather the soil responds to

History

how the system was worked, and what shifted it

The microbiome

the community present now, and the traits its members are known to carry

It holds each field up against its native baseline, reads its diversity as the signature of a system under resilience or stress, and turns that into a probability you can act on: what your soil likely was, how far management has moved it, and whether a biological is likely to help.

A live look

The engine reads a soil.

Move the controls to match a field: its chemistry, its management, and this season's climate stress. The twelve reported trait groups shift as the soil changes. A response shows direction and relative size only, never an absolute value, and where a soil falls outside the range Solum covers, the preview says so instead of guessing. It reads no location. The trained results are reported separately, each with the conditions under which they hold.

solum · integrating the determinants of soil function

Interactive preview. Values are indicative and are not a measurement of your soil.

Four uses

Four ways to use Solum.

The engine is free and open now. Running Solum on your own soil is in preparation; the waitlist is where I follow up personally.

1Free

Play the engine

Try Solum right here, free and with no sign-up or data. Move the sliders to describe a soil, its chemistry, its management, and this season's climate, and watch the engine estimate the state of its living community, its functional regime, and how resilient or stressed it is.

Free, on this page

2One report

Run it on your soil analysis

Complete the field record: site and sampling, laboratory methods, management and history, recent conditions, and the compartment sequenced. Your laboratory report and your sequencing data are attached as inputs; no soil is collected or mailed. You receive a full Solum report: which trait groups the community is inferred to carry and which are constrained, the chemical, physical, and management factors governing each, the divergence of the system from an undisturbed soil of the same region, and specific, practical measures to address the constraints identified. Written in plain language, grounded in your real numbers, delivered as a PDF you keep.

In preparation

Join the waitlist
3Six reports

Cover many fields

For growers, agronomists, and consultants working across several areas: run Solum on up to six fields or samples. Each field receives its own full report, so soils can be compared side by side, showing which areas are thriving and which are degrading, and management planned across the whole operation.

Multi-field analysis

4At scale

For companies and research

For organizations that need soil biology understood across many samples: cooperatives, input companies, research groups, and programs. Run Solum in volume or connect by API, with results structured for your own analysis. We tailor the scope, format, and delivery to your project.

Custom scope and pricing

Add an expert read to any report: we go through it with you and plan what to do next.

How it works

One pipeline, real chemistry, compared to nature.

1

One reference taxonomy.

Every study is brought onto a single reference taxonomy, so a genus in Brazil means the same thing as a genus in Canada, and every value traces back to its source.

2

Every value carries its provenance.

Each sample records where its chemistry came from, and that provenance stays with the value. Records are admitted to modelling only where the evidence meets the standard Solum requires, and what was admitted is reported.

3

Compared to nature.

Solum compares each agricultural soil against its native reference, which reveals depletion that raw values alone do not show. Comparing a managed soil to its native reference reveals depletion that raw values alone would miss.

Our approach

Reading soil as a living system, from measurements that already exist.

Solum characterises the living soil by integrating the whole system: soil chemistry, texture, land management, land-use history, climate, and geographic setting. From these it determines which factors govern the soil's biological processes and where those processes are constrained. Because no single factor governs a living community, the variables are evaluated jointly.

Behind it is a curated evidence base linking these factors to measured soil biology across regions, in which the origin of every value is retained. Every figure Solum reports is stated with the conditions under which it holds, and where the evidence does not support a figure, none is given and the reason is stated. Solum is independent by principle and tied to no manufacturer.

Original work

Solum is an original system conceived and developed by Quadros Bio Inc. © 2026 Quadros Bio Inc. SOLUM™ is a trademark of Quadros Bio Inc. Patent pending. Its methodology, models and curated database are proprietary.

Report contents

One soil intelligence report, built for a decision.

Solum's reasoning is deliberately auditable. Every reading traces back to its source.

  • 23,322 soils screened into the engine, 3,185 of them from tropical soils
  • 2,892 bacterial genera, normalised to a single taxonomic backbone
  • Soil chemistry from national soil databases; microbiome records from public sequence archives

Solum names what limits a soil, and the measure that answers it. The limit can sit anywhere in the system, in the soil, in the climate and weather the field works under, in the history of the site, or in the way it is managed, and the measure follows from where the limit is.

Who it is for

Farmers and agronomists determining what a field requires. Researchers who want their science grounded in real soils. Companies validating where, and whether, their product fits.

Solum access.

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