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Soil Science & AgronomyCOURSE-0029

OrganiLock Soil School: Foundations

A free, in-depth soil-science course - how soil works, how nitrogen and every nutrient really behave, and how to read and feed a living soil. Twelve lessons, a quiz after each, and a final exam earn your certificate.

Certificate · 80% to pass12 lessons14 quizzes
Part of Soil Mastery

Published June 15, 2026

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A labeled cross-section diagram of healthy topsoil showing layered mineral particles, water, air pockets, and dark organic matter with visible roots and soil organisms.

What you'll learn

  1. Quiz

    Soil IQ: What Do You Already Know?

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  2. Lesson
    What Soil Actually Is
  3. Quiz

    Lesson 1 quiz - What soil is

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  4. Lesson
    The Living Soil: Meet the Soil Food Web
  5. Quiz

    Lesson 2 quiz - The soil food web

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  6. Lesson
    Organic Matter and Carbon: The Engine of Fertility
  7. Quiz

    Lesson 3 quiz - Organic matter and carbon

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  8. Lesson
    Nitrogen, the Master Nutrient
  9. Quiz

    Lesson 4 quiz - Nitrogen, the master nutrient

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  10. Lesson
    Same Molecule, Different System
  11. Quiz

    Lesson 5 quiz - Same molecule, different system

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  12. Lesson
    The Biology-First Approach (and Where OrganiLock Fits)
  13. Quiz

    Lesson 6 quiz - The biology-first approach

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  14. Lesson
    Phosphorus and Potassium: The Other Two Macros
  15. Quiz

    Lesson 7 quiz - Phosphorus and potassium

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  16. Lesson
    The Supporting Cast: Secondary and Micronutrients
  17. Quiz

    Lesson 8 quiz - The supporting cast

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  18. Lesson
    How Nutrients Work Together
  19. Quiz

    Lesson 9 quiz - How nutrients work together

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  20. Lesson
    Feeding Different Plants
  21. Quiz

    Lesson 10 quiz - Feeding different plants

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  22. Lesson
    Reading Your Soil Test and Labels
  23. Quiz

    Lesson 11 quiz - Reading soil tests and labels

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  24. Lesson
    Building Living Soil (Putting It All Together)
  25. Quiz

    Lesson 12 quiz - Building living soil

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  26. QuizFinal

    Final Exam - OrganiLock Soil School: Foundations

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Sign in to track your progress - lessons and quizzes mark complete as you go.

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