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Earthcraft BioSystems

Earthcraft Rhizocraft SP (Microbial Inoculant)

Earthcraft Rhizocraft SP (Microbial Inoculant)

Regular price $55.00 USD
Regular price Sale price $55.00 USD
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Rhizocraft SP is a fully loaded bio-inoculation package. It is a dry, water-soluble root growth stimulant with endomycorrhizae as well as nitrogen-fixing, phosphorus solubilizing and growth promoting beneficial bacteria. Use Rhizocraft to bring life to the root-zone, boost natural immunity, and increase nutrient availability and uptake for heavier healthier harvests!


Uses and Benefits:

  • Organic, dry, water-soluble biodiverse beneficial inoculant and biostimulant compound
  • Contains bacillus, pseudomonas & streptomyces beneficial bacteria species, endomycorrhizae, humic acid, soluble sea kelp, trichoderma fungi, dextrose and yucca extract
  • Endomycorrhizae mycelium inoculates directly within root cells and establishes symbiotic relationship with plant that massively expands roots access to water and nutrients
  • Promotes quick root establishment, reduces transplant shock, increases nutrient availability, and improves overall plant health and soil health 
  • Improves plant respiration and photosynthesis while promoting cell division and lateral bud development
  • Reduces heat stress, irrigation frequency, fertilizer use, and need for pesticides
  • Effective as root drench or foliar treatment and compatible with any nutrient regime


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 soluble powder 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.

Application Rate

2-4 grams (1/2-1tsp) per gallon of water or 1lb per 100 gallons of water

Apply to root zone every 1-2 weeks from seed to harvest.

Derived From:

Kelp Extract (ascophyllum nodosum)  

ALSO CONTAINS NON PLANT FOOD INGREDIENTS 39% Humic Acids (Derived from : Leonardite)  5% Dextrose 2% Yucca Schidigera 26% Kelp Extract (Ascophyllum nodosum) (microbe food)  


Guaranteed Analysis:

Endomycorrhizae -------------------------- 6 spores per gram     Glomus intraradices   Glomus mosseae Trichoderma harzianum ------------ 799,559 CFU per gram  Trichoderma hamatum -------------- 799,559 CFU per gram  Trichoderma reesei ------------------ 799,559 CFU per gram  Bacillus firmus ---------------------- 2,973,568 CFU per gram Bacillus amyloliquefaciens ---- 201,211,454 CFU per gram Bacillus subtilis ------------------------ 201,211,454 per gram Bacillus licheniformis ------------ 69,052,863 CFU per gram  Bacillus megaterium --------------- 2,973,568 CFU per gram  Pseudomonas putida ---------------- 654,185 CFU per gram  Streptomyces lydicus ---------------- 594,714 CFU per gram  Bacillus coagulans ------------------ 2,973,568 CFU per gram  Pseudomonas fluorescens ---------- 654,185 CFU per gram  Bacillus pumilus ----------------- 201,211,454 CFU per gram  Streptomyces coelicolor ------------- 654,185 CFU per gram  Pseudomonas aureofaciens --------- 594,714 CFU per gram Paenibacillus polymyxa ------------ 2,973,568 CFU per gram  Paenibacillus durum ---------------- 2,973,568 CFU per gram  Bacillus azotoformans -------------- 2,973,568 CFU per gram  Streptomyces griseus ----------------------- 654,185 per gram

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


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.