Differences between agrobiocenosis and biocenosis?

Agrobiocenosis is an association of organisms in crops and plantings from cultivated plants; one of the most common forms of secondary biocenoses. Each cultivated plant species forms its own characteristic agrobiocenosis with a series of permanent and dominant species. Agrobiocenosis differs from those primary biocenoses in its inability for long-term independent existence as a result of a sharp weakening of self-regulating processes; their temporary stability will be maintained through human activity. Another important property as agrobiocenoses is the predominance of several herbivorous species over animals, primarily pests, especially insects. Cultivated plants form the energy base in agrobiocenoses.