The most active decomposers of freshly added organic materials are able to sustain themselves by slowly attacking stable soil organic matter because of the head start they enjoy over other organisms,which were present only in inactive forms prior to the addition.

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The most active decomposers of freshly added organic materials are primarily bacteria and fungi that thrive on the easily decomposable components of the fresh organic matter. They do not rely on stable soil organic matter for sustenance but rather on the new, more labile inputs. Other organisms may become active in response to the changes in the environment caused by the decomposition of fresh material, not because they were inactive but because the conditions become more favorable for their activity.

The Most Active Decomposers of Freshly Added Organic Materials Are