Pamukkale University Journal of Engineering Sciences (Feb 1996)
THE EFFECTS OF BACTERIA (Rhizobium meliloti) AND FUNGUS (Aspergillus niger) ON AGGREGATE STABILITY OF A CLAY LOAM SOIL MIXED AND NON MIXED BY PEAT
Abstract
In this research, the effects of inoculation with the bacteria (Rhizobium meliloti) and fungus (Aspergillus niger), species on the aggregate stability of a clay loam soil mixed and non mixed by peat were investigated. The inoculated and non inoculated samples were incubated at 20 ± 1°C for 1, 30, 60 and 90 days, then, at the end of each incubation period, aggregate stabilities were determined. At the end of second incubation period, maximum aggregate stabilities were obtained at the inoculated and non inoculated and mixed peat and non mixed peat soil samples, and this differences were found significant by statistically (P < 0.05). At the end of after second incubation periods, aggregate stabilities were decreased. Fungus caused in higher inrease at aggregate stabilities than bacteria. It was found that aggregate stabilities of soils mixed by peat lower than non mixed by peat.
