Soil microorganisms are the most abundant of all biota in the soil and are responsible for driving the nutrient and organic cycle, soil fertility, soil recovery, plant health and primary production of the ecosystem. You can check about plant growth promoting bacteria -growing cannabis indoors online.
Beneficial microorganisms include those that make symbiotic associations with plant roots (rhizobia, mycorrhizal fungi, actinomycetes, diazotrophic bacteria), promote mineralization and nutrient availability, produce plant growth hormones and are antagonists of plant pests, parasites or diseases (biocontrol agents).
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Many of these organisms already exist naturally in the soil, although in some situations it may be beneficial to increase their population either by inoculation or by applying various agricultural management techniques that increase their abundance and activity.
More than 90% of the world's plants are mycorrhizae, with varying degrees of dependency and benefits derived from this association.
The positive role of mycorrhizae in crop production is well documented, with many cases of growth and yield increase, especially in highly dependent and vulnerable plants. Plant responses can be caused by a variety of reasons, although in many cases this is due to an increase in effective root area for extraction of water and nutrients because of mycorrhizal hyphae tissue functions as a natural extension of the plant's root system.