Why do you think progressive technologies for planting trees in poor soil involve contamination of the soil with certain types of fungi?

a symbiotic relationship is formed between these mushrooms and the tree. Mushrooms quickly form a very branched mycelium and entwine tree roots with their hyphae. Thanks to this, the plant receives water and mineral salts from a huge soil surface area. To achieve such an effect without the mycelium, the tree would have to spend a lot of time, substance and energy to form such an extensive root system. When planting in a new place, symbiosis with the fungus significantly increases the tree’s chances of successfully taking root.