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How deep can roots really grow? How much surface area can exude carbon and feed microbes? Amoebae, flagellates, ciliates, nematodes, and other mesofauna, earthworms, and all of the microbial predators in the soil seek out this root-catered microbial network. In exchange, predators poop out nutrients right at the root surface. In this world, there is no place for fertilizers, pesticides, or tilling. Only nutrient-dense food on pest-resistant plants and miles and miles of carbon storage below the surface.

My students at the Soil Food Web School around the globe use Dr. Elaine Ingham's methods to experimentally test the benefits of restoring the biology in a soil food web as they train to become Soil Consultants. Data from around the world coming soon!

Presentations include the 7 benefits of healthy soil and an introduction to key members of the soil food web.

Soil Biology


Keywords: Plant-microbe symbioses | nitrogen-fixation | plant defenses | eliminate fertilizers

Adrienne did her dissertation work on the legume-rhizobia symbiosis at Portland State University with Dr. Daniel Ballhorn

Turn all insects into beneficial insects!

Insects are not pests when faced with a plant that has proper nutrient cycling in the soil. And the remaining "pest" species that may be present on your plants can serve as food to support a thriving community of predators who can keep their populations in check. Your best support in growing healthy crops may be buzzing right beside you. 

Presentations include an overview of how to identify garden beneficials as well as a clear explanation for how getting the soil food web healthy can eliminate problematic outbreaks. 

Beneficial insects


Keywords: Plant-insect interactions | volatile organic compounds | eliminate pesticides

 Adrienne did her postdoc at the Université de Neuchâtel in Switzerland, which is a leader in chemical ecology and plant-insect-soil interactions


Keywords: Carbon storage |  fungal to bacterial biomass | eliminate fertilizers and pesticides

Adrienne is a mentor for the Soil Food Web School's Consultant Training Program & host of the annual Soil Regen Summit

Plant families able to form a symbiosis with nitrogen-fixing bacteria, such as legumes with rhizobia, are relatively rare, but occur in most terrestrial ecosystems. Legume-rhizobia symbioses have been long-recognized to play critical roles in geochemical cycling and plant productivity, acclaimed as ecosystem engineers and keystone species. Gaining organic nitrogen (N) in exchange for photo-assimilated carbon (C) aids plants in overcoming soil nitrogen limitations, relevant both ecologically and agriculturally.  

Presentations break down how plants acquire the nutrients they need and the myraid ways plands defend their tissues biochemically. If you want to better understand nitrogen in nature, this is the presentation for you. 


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