Bulk soil
Soil type / From Wikipedia, the free encyclopedia
Bulk soil is soil outside the rhizosphere that is not penetrated by plant roots. The bulk soil is like an ecosystem, it is made up of many things such as: nutrients, ions, soil particles, and root exudates. There are many different interactions that occur between all the members of the bulk soil. Natural organic compounds are much lower in bulk soil than in the rhizosphere.[1] Furthermore, bulk soil inhabitants are generally smaller than identical species in the rhizosphere.[2] The main two aspects of bulk soil are its chemistry and microbial community composition.