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Rhizosphere

Rhizosphere
Rhizosphere An illustration of the rhizosphere.[1] A=Amoeba consuming bacteria; BL=Energy limited bacteria; BU=Non-energy limited bacteria; RC=Root derived carbon; SR=Sloughed root hair cells; F=Fungal hyphae; N=Nematode worm

The rhizosphere is the narrow region of soil that is directly influenced by root secretions and associated soil microorganisms.[2] Soil which is not part of the rhizosphere is known as bulk soil. The rhizosphere contains many bacteria that feed on sloughed-off plant cells, termed rhizodeposition, and the proteins and sugars released by roots. Protozoa and nematodes that graze on bacteria are also more abundant in the rhizosphere. Thus, much of the nutrient cycling and disease suppression needed by plants occurs immediately adjacent to roots.[3]

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Soil Health (USDA-NRCS)

Soil Health Awareness
Soil Health Awareness

Soil is a living and life-giving natural resource.

As world population and food production demands rise, keeping our soil healthy and productive is of paramount importance. So much so that we believe improving the health of our Nation’s soil is one of the most important conservation endeavors of our time.

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