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Earthcraft BioSystems

Earthcraft Terrestrial (Fulvic Acid)

Earthcraft Terrestrial (Fulvic Acid)

Regular price $26.00 USD
Regular price Sale price $26.00 USD
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Shipping calculated at checkout.

Terrestrial is a powerful organic fulvic acid formula derived from ancient peat deposits. This nutrient catalyst and plant energizer can improve photosynthesis, increase root mass,  increase plant metabolism, stimulate soil microorganisms, and improve plant respiration by increasing oxygen absorbed by roots. Due to a high cation exchange capacity, nutrients are bound to these microscopic acids for more direct and immediate uptake. Use Terrestrial in all phases of growth for a hardier, more vibrant, and more productive garden!

Uses and Benefits:

  • Fulvic acids increase the availability of nutrients and mineral absorption into root cells
  • Nutrients are bound to the negatively charged microscopic acids and allowed to pass easily through cell walls
  • Once inside plant tissues, fulvic acids deliver nutrients to where they are needed the most
  • Enhances cell division and elongation leading to significant root growth
  • Protects against abiotic stress from drought and high salinity
  • Helps stabilize soil pH and correct nutrient lock-out
  • May help protect against heavy metal toxicity
  • Effective as root drench or foliar treatment

Compatibility with Beneficial Insects:

The carefully selected blend of water-soluble, organic ingredients that make up the Earthcraft BioSystems line make it harmless against your beneficial insects, yet effective in their intended uses.

Product Versatility:

The organic, bio-available nutrients are an excellent addition to any no-till garden to fill the gaps when your soil biology may not be able to keep up with your plants demands. The exceptional cost value of these nutrients perfectly aligns with the economical approach of regenerative agriculture.

The liquid formula is compatible in any irrigation or fertigation systems without clogs and it can be used in any soil or soil-less growing mediums such as coco coir, peat and even rockwool.

Derived From:


Guaranteed Analysis:

Soluble Potash (K20) - 0.45%

Commercial Pricing:

We do commercial pricing! If you're interested in discussing further and getting some commercial pricing, please don't hesitate to reach out to me at

Application Rate

4-8 ml per gallon gallon of water


We recommend storing all dry amendments and nutrients in a dry, cool location away from direct sun.


Shipping on all our non-living goods is free to the lower 48 United States.

Returns and Replacement

All dry amendments and nutrients are returnable within 14 business days, as long as the container is unopened and packaging is in the same condition as sent.

If your package is damaged during shipment, please document and send us pictures and notice to and we will make it right!

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Earthcraft Biosystems and MI Beneficials products go together very well

Friends with Benefits

The Earthcraft Biosystems nutrient line is not only the perfect companion to MI Beneficials soil amendments, but they are harmless to your living soil organisms such as the ones we offer in our Biodiversity Pack.

  • Fast and Free Shipping

    There are free shipping options on orders of amendments, nutrients, natural inputs and other non-living goods over $35 to the lower 48!

  • Dedicated to Sustainability

    All of Earthcraft Biosystems' packaging for dry goods is completely compostable including stickers.