Reviewed August 2026 against USDA NRCS/ERS, Eurostat and the JRC–EEA State of Soils in Europe.

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Uses of Soil: 20 Functions, Measured and Verified

Soil has twenty distinct uses that matter to farming, construction and climate accounting, and every one of them rests on a property you can look up for your own field rather than take on faith: texture, available water capacity, organic carbon, pH, bulk density, soil loss tolerance. The FAO states that 95 percent of our food is directly produced on soils — but a percentage that large tells a farmer nothing actionable. What follows is the opposite: each use, the measurable property it depends on, the current published figure for the United States or the EU, and the public database where you can pull a fresher number for your own acres.

The second half answers the other question people bring here — the application of computers in agriculture — with USDA adoption rates by farm size, not adjectives.

Contents

• What soil actually does: the six functions behind all twenty uses
• 20 uses of soil, with the property each one depends on
• Uses of soil in agriculture: the five that decide your yield
• What losing soil costs per acre — and a calculator for your field
• Europe: what regulators now require you to measure
• Application of computers in agriculture: 10 uses and their real adoption rates
• Crosswalk: which computer application manages which soil use
• Farmonaut tools for soil and field monitoring
• FAQ
• A verification checklist that outlives these numbers

What soil actually does: the six functions behind all twenty uses

Every one of the twenty uses below reduces to six physical functions. Soil holds water and releases it slowly. It stores and exchanges nutrients on clay and organic surfaces. It anchors roots against wind and gravity. It hosts the microbial population that decomposes residue. It buffers acidity and immobilises contaminants. And it holds carbon — as organic matter that also does the first five jobs better.

This matters commercially because those functions map onto an asset price. USDA NASS put US cropland at $5,830 per acre in 2025, up 4.7 percent, with cropland cash rent at a record $161 per acre, per the Land Values report released 1 August 2025 (AFBF Market Intel summary, 5 August 2025; the underlying NASS Land Values and Cash Rents highlights is reissued each August). What you are buying at $5,830 an acre is those six functions. Degrade them and the price is unchanged; the return is not.

20 uses of soil, with the property each one depends on

Most “20 uses of soil” lists give you a noun and a sentence. This one gives you the soil property the use depends on and where to read that property for your own ground. For US fields, nearly all of these are free in USDA Web Soil Survey, which carries mapped soil data for over 95 percent of US counties; the rest come from a lab soil test.

Two things fall out of that table. First, uses 16 to 20 are why the phrase “20 uses of soil” appears in engineering and mining coursework as well as agronomy — the same body of soil data serves foundation design and reclamation planning. Second, thirteen of the twenty are answerable in one sitting from a single free federal database, which is the practical reason to start there rather than with a general search.

Uses of soil in agriculture: the five that decide your yield

Narrow the list to agriculture and the ranking changes. Five uses account for most of the season-to-season variance a grower can actually influence.

1. Water storage. Available water capacity, expressed as inches of plant-available water per inch of soil, sets how many days the crop can go between rains. A silt loam holding roughly twice the plant-available water of a loamy sand is the difference between a dry August that costs nothing and one that costs a third of the crop. Pull the AWC figure for each map unit in the field, multiply by rooting depth, and you have your buffer in inches.
2. Nutrient exchange. Cation exchange capacity governs how much potassium, calcium and magnesium the soil can hold against leaching. Low-CEC sands need split applications; high-CEC clays do not.
3. pH buffering. Buffer pH, not water pH, determines the lime rate. Getting this wrong is the most common way a fertiliser programme underperforms while the fertiliser itself is blameless.
4. Erosion resistance. Each soil map unit carries a T-factor — the soil loss tolerance, defined by NRCS as the maximum annual erosion at which the soil’s quality as a growing medium is maintained. UC Davis’s SoilWeb documentation gives the range as 1 to 5 tons per acre per year: 1 for shallow or fragile soils, 5 for deep, erosion-resistant ones.
5. Organic matter. It is the one property that improves the other four at once, and the one that responds to management on a decade timescale rather than a season.

What losing soil costs per acre — and a calculator for your field

The 2017 National Resources Inventory, published by USDA-NRCS in September 2020, put average US cropland soil loss at 4.63 tons per acre per year: 2.67 tons from sheet and rill erosion by water, 1.96 tons from wind. That is a 35 percent reduction over roughly four decades, though the University of Illinois farmdoc daily review (14:52, 14 March 2024) notes most of that gain landed between 1982 and 1997 and that water erosion rates have risen since. The NRI is a periodic survey, so check NRCS for the next release rather than treating 4.63 as permanent.

On cost, the same farmdoc review works from Pimentel et al. (1995), who estimated erosion damage at $79.35 per acre per year in 1992 dollars at an erosion rate of 6.88 tons per acre. Inflated to March 2024 dollars, the authors put that at $113.92 per acre, split roughly 75 percent borne by the farmer ($85.44) and 25 percent by society ($28.48). Pimentel’s team also concluded the US would need about $6.4 billion a year to push erosion below 0.5 tons per acre per year.

Those are national averages built on a 6.88-ton erosion rate. Your field is not the national average, so run your own numbers.

Europe: what regulators now require you to measure

For readers in Germany and elsewhere in the EU, soil use is moving from agronomy into compliance. The State of Soils in Europe report, published by the Joint Research Centre and the European Environment Agency on 22 October 2024, quantifies the problem: EU-wide erosion of about 1 billion tonnes per year, roughly 24 percent of EU soils affected by water erosion with a projected increase of 13 to 25 percent by 2050, 74 percent of agricultural land showing nutrient imbalances, 70 million tonnes of organic carbon lost from croplands between 2009 and 2018, and 50 percent of EU peatlands degraded.

Eurostat's agri-environmental indicator, built on the JRC's RUSLE model, reports that 5.1 percent of the EU's non-artificial erodible area was at risk of severe erosion — defined as soil loss above 10 tonnes per hectare per year — for reference year 2023, with Italy (24.4 percent), Slovenia (19.0 percent) and Austria (15.3 percent) highest, and Denmark, Estonia, Latvia, Lithuania and the Netherlands near zero. That page is updated as new RUSLE runs are published, so read it rather than quoting this paragraph in two years.

The regulatory follow-on is the EU Soil Monitoring Directive, approved by the Council on 29 September 2025 and adopted by the European Parliament on 23 October 2025, entering into force on 16 December 2025 with a stated aim of healthy soils across Europe by 2050 (European Soil Partnership). It requires Member States to build national soil monitoring systems; Germany already runs one of the most complete national baselines in the Thünen Institute's Bodenzustandserhebung Landwirtschaft, which sampled agricultural soils on a national grid to 100 cm depth. Transposition into national law follows over the years after entry into force, so watch your Bundesland's implementation rather than assuming EU-level dates apply directly.

Application of computers in agriculture: 10 uses and their real adoption rates

Adoption is uneven, and the unevenness is the story. USDA's Agricultural Resource Management Survey found that in 2023, guidance autosteering was used by 52 percent of midsize farms and 70 percent of large-scale crop-producing farms, up from single digits in the early 2000s, while yield monitors, yield maps and soil maps reached 68 percent of large-scale crop farms (USDA ERS, from America's Farms and Ranches at a Glance, December 2024). ERS's report Precision Agriculture in the Digital Era: Recent Adoption on U.S. Farms (McFadden, Njuki and Griffin, published 22 February 2023) adds the crop dimension: autoguidance now covers well over 50 percent of acreage planted to corn, cotton, rice, sorghum, soybeans and winter wheat, but yield maps, soil maps and variable-rate technologies sit between 5 and 25 percent on winter wheat, cotton, sorghum and rice.

On the whole-farm side, the August 2023 USDA NASS technology survey put US farms at 85 percent with internet access, 82 percent with a smartphone, 69 percent with a desktop or laptop, and 27 percent using precision agriculture practices — against 55 percent in Nebraska (University of Nebraska–Lincoln Center for Agricultural Profitability). NASS reissues this survey roughly every two years; the release list, most recently dated 29 August 2025, sits on the NASS Technology Use methodology page, which is where to get a number newer than the one printed here.

The ten applications, in the order a farm typically adopts them:

1. Guidance and autosteer

The entry point, and the only precision technology past 50 percent on major row-crop acreage. It reduces overlap on every pass; the payback is measured in fuel, seed and hours, not in yield.

2. Yield monitoring and yield mapping

68 percent of large-scale crop farms in 2023, far lower on smaller operations. A yield map is the only record that tells you which parts of the field respond to what you spent.

3. Soil sampling and mapping software

Grid or zone sampling georeferenced against the Web Soil Survey map units. This is where the twenty uses above stop being a list and become a prescription file.

4. Variable-rate application

Between 5 and 25 percent adoption on winter wheat, cotton, sorghum and rice per USDA ERS, higher on corn and soybeans. The gap between mapping and acting on maps is the largest unclosed gap in the sector.

5. Satellite crop and soil monitoring

Multispectral imagery gives a repeat measurement of canopy vigour and soil moisture proxies across every acre, without walking them. It is the cheapest way to get a field-scale time series.

6. Weather modelling and field scheduling

Site-specific forecasts drive spray windows, planting dates and irrigation timing — the decisions where a day's error costs more than the tool.

7. Disease and pest detection from imagery

Machine-learned classification of drone or satellite imagery flags anomalies before they are visible from the cab, narrowing where a scout walks.

8. Farm management and recordkeeping software

Input, labour and expense tracking — increasingly the substrate for compliance reporting rather than just bookkeeping. For multi-block operations, Farmonaut's large-scale farm management app consolidates field-level satellite insight across Android, iOS and web.

9. Traceability and supply-chain systems

Chain-of-custody records from field to buyer. Farmonaut's blockchain-based product traceability covers agricultural and mining consignments where origin verification is contractual.

10. Carbon and sustainability accounting

The application growing fastest under EU rules. Quantifying soil carbon and emissions is now a reporting obligation for many supply chains, not a voluntary exercise — see Farmonaut's carbon footprinting tools.

Crosswalk: which computer application manages which soil use

Farmonaut tools for soil and field monitoring

Farmonaut supplies the measurement layer: multispectral satellite monitoring of crop vigour and soil moisture proxies, AI advisories, traceability and carbon reporting, priced for operations that cannot justify a full agronomy contract. The platform runs on web, Android and iOS, and the same data is available programmatically.

• Field-scale monitoring — repeat satellite passes over every block, no scouting trip required.
• Advisory — Farmonaut's Jeevn AI advisory system turns imagery and weather into field-level recommendations.
• Developer access — the Farmonaut API and API developer docs let you pull satellite and weather layers into your own stack.
• Financing and insurance verification — satellite-based verification for agricultural financing.

FAQ

Is there a definitive list of 10 uses of soil versus 20?

No. The count is a teaching convention, not a taxonomy. Ten-item lists usually stop at the agricultural and ecological functions; twenty-item lists add engineering, construction-material and reclamation uses, which is why "20 uses of soil" turns up in civil engineering syllabi. The six underlying functions in the table above are what the counts are slicing.

How do I find the actual figures for my own field?

In the US: draw your area of interest in Web Soil Survey and download the map unit report — it carries available water capacity, K-factor, T-factor, rooting depth and engineering properties. Then send a 0–6 inch composite core to a land-grant or accredited commercial lab for pH, buffer pH, P, K and organic matter. In the EU, national soil monitoring systems established under the Soil Monitoring Directive are the equivalent route; Germany's Thünen inventory is the national baseline.

What erosion rate should worry me?

Compare your modelled rate to the T-factor for your specific soil, not to a national average. T ranges from 1 to 5 tons per acre per year. A 4.63-ton rate is comfortably below T on a deep prairie soil and roughly five times T on a shallow, stony one.

Which computer application pays back first on a small farm?

USDA ARMS shows adoption rising sharply with farm size, which is a statement about fixed cost, not about value. Applications with no equipment cost — satellite monitoring, weather modelling, recordkeeping — are the ones that scale down; autosteer and variable-rate hardware do not. That is why 27 percent of US farms reported using precision agriculture in 2023 while autosteer covered most row-crop acres.

Do soil moisture probes actually change decisions?

They change irrigation timing, which is where most water is wasted. Probe and test-kit options are covered in our review of the agriculture water test kit market. Pair the reading with the available water capacity figure for that map unit, or the number has no reference point.

A verification checklist that outlives these numbers

Every figure above will be superseded. The method will not. For any soil use you care about, work through five steps:

1. Name the property. Not "soil health" — available water capacity, T-factor, buffer pH, organic carbon percentage.
2. Find the map unit. Web Soil Survey in the US; your national soil monitoring dataset in the EU. Most fields contain three to six distinct map units, and averaging across them destroys the information.
3. Get the vintage. The NRI is periodic; NASS technology surveys run about every two years; Eurostat's erosion indicator follows JRC RUSLE releases. Write the date next to the number.
4. Compare against a threshold, not an average. T-factor for erosion, buffer pH for lime, crop-specific critical levels for P and K.
5. Re-measure on a schedule. Soil tests on a two-to-four year rotation; the EU directive's monitoring cycle for regulated parameters.

Do that and the twenty uses stop being a list to memorise and become a set of numbers you own for your own ground. Start with a satellite baseline and layer the lab work on top: Farmonaut web app | Android | iOS | API.