What are the best free soil health sites for learning evidence-based farming practices with practical scale-up guidance?

Here are some of the best free, evidence-based soil health resources that also give practical guidance for adopting practices at field/farm scale.

Top free sites

1) USDA NRCS Soil Health Portal

Best for: practical conservation farming in the U.S.
What you get: field-tested guidance on cover crops, reduced tillage, nutrient management, grazing, compaction, aggregate stability, infiltration, and the “soil health principles.”
Why it stands out: strong connection to implementation, planning, and cost-share/technical assistance pathways.
Good for scale-up: yes — includes practice standards, planning tools, and farmer-facing recommendations.
Site: https://www.nrcs.usda.gov/conservation-basics/natural-resource-concerns/soils/soil-health

2) SARE (Sustainable Agriculture Research and Education)

Best for: evidence-based, farmer-oriented research summaries and practical adoption.
What you get: books, bulletins, case studies, project reports, and research on cover crops, rotations, soil organic matter, tillage, and integrated systems.
Why it stands out: one of the best sources for “what has worked on real farms?”
Good for scale-up: yes — many resources discuss implementation details, costs, and management tradeoffs.
Site: https://sare.org/resources/

3) FAO Soils Portal

Best for: global soil health and sustainable land management.
What you get: technical guides on soil restoration, carbon, erosion, salinity, soil biodiversity, and land management across climates and farming systems.
Why it stands out: strong international perspective and broad evidence base.
Good for scale-up: moderate to strong — useful for systems-level planning and adaptation.
Site: https://www.fao.org/soils-portal/en/

4) ReSoil / European Commission soil resources

Best for: EU-oriented soil management, monitoring, and policy-backed practice guidance.
What you get: soil functions, degradation issues, and management approaches.
Why it stands out: good for connecting science, policy, and land management.
Good for scale-up: moderate — especially useful if you’re in Europe.
Site: https://soil-platform.jrc.ec.europa.eu/

5) Cornell Soil Health

Best for: soil health testing and interpretation, especially in temperate agriculture.
What you get: soil health assessment methods, thresholds, and management implications for physical, chemical, and biological indicators.
Why it stands out: excellent if you want to measure change and connect results to management.
Good for scale-up: good — especially for building a monitoring plan.
Site: https://soilhealth.cals.cornell.edu/

6) Penn State Extension Soil Health

Best for: clear, practical education with lots of management examples.
What you get: articles and guides on cover crops, no-till, organic matter, compaction, residues, rotations, and soil biology.
Why it stands out: accessible and practical.
Good for scale-up: good for decision-making and stepwise adoption.
Site: https://extension.psu.edu/soil-health

7) NRCS Web Soil Survey

Best for: understanding your soil type before choosing practices.
What you get: soil maps, properties, and limitations by field.
Why it stands out: foundational for site-specific scaling and practice selection.
Good for scale-up: yes, indirectly — helps match practices to soils and landscapes.
Site: https://websoilsurvey.nrcs.usda.gov/

8) University extension soil health pages

Examples:

• University of Minnesota Extension
• Iowa State Extension
• Michigan State Extension
• Cornell, Penn State, Ohio State, etc.

Best for: locally relevant recommendations and field trial results.
What you get: crop-specific and region-specific guidance.
Why they stand out: often the most practical for local climate/soil conditions.
Good for scale-up: yes, especially when paired with local trials.
Example hub: https://extension.umn.edu/soil-management-and-health

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Best sites for practical scale-up guidance

If your priority is not just learning, but actually adopting practices across more acres, start with:

1. USDA NRCS Soil Health Portal
2. SARE
3. Cornell Soil Health
4. Local university extension soil health resources
5. FAO if you need global or developing-country contexts

These are the most useful for:

• deciding which practice to try first
• estimating tradeoffs and risk
• using soil tests and indicators
• implementing pilot → expand → monitor approaches

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What to look for in a good soil health resource

Choose sites that include:

• research summaries, not just opinion
• practice-specific guidance (cover crops, rotation, residue, grazing, reduced tillage)
• local adaptation by region/soil type
• implementation details: timing, equipment, seed mix, termination, monitoring
• economics and risk management
• measurable indicators: infiltration, aggregate stability, organic matter, compaction, biology

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If you want the shortest “best of the best” list

• USDA NRCS Soil Health
• SARE
• Cornell Soil Health
• FAO Soils Portal
• University extension in your state/region

If you want, I can also make you a ranked list by crop type (row crops, vegetables, pasture, organic systems) or by region (US, Canada, Africa, South Asia, EU, etc.).