Victor Dordonne

That's exactly what I am talking about. But it won't work if you don't create a climate in which they can survive. So you've got to feed them with a source of carbohydrate and give them a good temperature and also a good humidity like in your own forest.

But I feel like we should add some tree as if we were building a forest to harvest the more sunlight as we can. With various type of tree with different eight in the path way to keep high humidity and enough moisture and shade. It will promote the development of microorganism as nitrogen fixing bacteria. I will try to convince the other involved in this project to do so. I want to create pathway as shown in the photo

IMO = Indegenous Micro organism
IMO are harvested in rich biodiversity ecosystem like forest or natural grassland to increase the diversity of microorganism in your soil. It improves your soil life and as it create a greater competition between the soil food web it allow to decrease the impact of the parasite and the unwanted microorganism. It will only work if you create for them a good habitat with moisture, no direct sun ray exposure, and enough food for them to decompose and feed on. You can add it to your compost pile or your compost tea. As I am not an expert please excuse me if I forgotten something.

here is another type of raised bed for a bigger scale. We tilled lightly only to put the weed under the surface then we putted cardboard on it. then we take the same soil without the weed and we putted it over the cardborad.
about 20-30cm. we had bagasse(5cm) and chicken manure on the top. we done the same thing with wood chips only for doing a comparison. we dig 30cm large and 50cm deep swale between each bed
advantages : No weeding, No erosion, good water retention.
disadvantages : a lot of earthworks, needs for a lot of inputs (bagasse, wood chips, manure), destroy the top soil and the soil life if not done properly.

I am actually doing a 3000 square metter raised bed garden with a family in Martinique. We have triyed different type of raised bed and I would like to share it with you and discuss wheter or not they are efficient, what are the advantages and the disadvantages of these techniques.
first, raised bed with cutted wood at the center, covered with compost then mulch with inoculated wood chips .
the mulch was not thick enough to retain moisture nor to shade the microorganism from the direct sunlight plus the wood chips absorbed a lot of nitrogen from the soil which led to a deficiency for the plant.

I would like us to share about our experience about harvesting and inoculationg the soil with IMO :
Wich substract do you use?
how many time do you let it under the mulch?
how do you ferment it?
what dilution do you use with what results?

here is my own experience with IMO. I cooked white rice until it was really sticky. Then I putted it under bamboo in the forest. I came back 10 days latter and there is what I have found.
Then I mixed 50/50 with sugar and now it is fermenting over my balcony.
I'm trying to do the same with brown rice to see if there is any difference.