EFFECT OF FUEL OIL APPLICATION AND FUNGI INOCULATION ON MEAN WEIGHT DIAMETER AND ITS REFLECTION ON SOME SOILCHARACTERISTICS

H. S. Bahia, M.

	EFFECT OF FUEL OIL APPLICATION AND FUNGI INOCULATION ON MEAN WEIGHT DIAMETER AND ITS REFLECTION ON SOME SOILCHARACTERISTICS
The Iraqi Journal of Agricultural Science
Article 1, Volume 39, Issue 5, 2008, Pages 125-135
Author
M. H. S. Bahia
Abstract
To study the effect of fuel oil and fungi inoculation on the mean weight diameter and to measure another physical properties as an indicator of the soil structure situation. In this study, six levels of fuel oil 0, 1, 2, 3, 4 and 5% and two types of fungi Rhizopus delmar and Phanorochaete chrysosporium have been used, soil samples SiCL textured have incubated for 15, 30, 45 and 60 days. A completely randomized design was used with three replications of each treatment and the values of least significant difference and correlation coefficients were adopted as a source of inference among treatments. In this study, results showed that, the addition of fuel oil and fungi inoculation led to a statistically significant increase in the mean weight diameter (2.88mm) and in turn that reflected to increasing the total porosity (66.4%) and decreasing the bulk density (0.88Mg.m-3). The increasing rate of the mean weight diameter increases rapidly with the time passage until the end of the experiment. In addition to that the fungal colonies diameter (53.66mm) has increased because of improving physical conditions of the soil and as a result of that, the total organic carbon (45.12g.kg-1) produced from the additive fuel oil analyzing and the residues of fungi has increased, thus the soil structure situation has improved.

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