Asian Journal of Microbiology, Biotechnology & Environmental Sciences Paper

Vol 07, Issue 3, 2005; Page No.(473-478)

POPULATION DYNAMICS OF SOIL MICROFLORA AS AFFECTED WITH EUCALYPTUS PLANT FLORAL REFLUX AMENDMENT

POONAM DIXIT, P.K. MATHUR AND A.K.AGARWAL

Abstract

The Eucalyptus plant floral reflux material was used to amend the cultivated agricultural soil in the concentration of 1.0, 1.5, 2.0, 5.0 and 10.0%. Soil mycpflora of amended as well as control (natural) soils were studied after 10, 20 and 30 days of amendment. The soil mycoflora comprised of 30 fungal isolates; out of these 5 belonged to phycomycetes, 12 ascomycetes, 21 to deuteromycetes, 2 to mycelia sterilia and one unidentified fungal species of the genera arranged in decreasing order of number of species. Aspergillus, Fusarium, Penicillium, Mucor, Rhizopus, Chaetomium and Drechslera. A higher fungal population in amended soil was recorded earlier stage (10 days) of study, however the fungal population in amended soils declined with increase in incubation period (20 days, 30 days). The increased values of P. Na and K in amended cultivated soil indicated suitability of plant material for improvement of soil fertility. However, the values were decreased after an incubation of 20 days and 30 days. The correlation coefficients 'r' and their calculated 't' values were obtained between physico-chemical characteristics and microbial population in respective amendents.

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