Effect of organic amendments on soil mycoflora

Abstract

In present study, the influences of different organic soil amendments on soil fungi was studied. Soil organisms carry a wide range of processor that are important for soil health and partially in both natural and managed agricultural scales. The total number of organisms, the diversity of species and activity of soil biota will fluctuate as soil environment changes. Three types of soil amendments and fertilizers viz., urea, FYM and vermicompost were used to amend the cultivated agricultural soil. The fungi were isolated from soil by using dilution plate technique and soil plate method. The dynamics of soil fungi were observed qualitatively as well as quantitatively. The maximum number of fungi was recorded when soil amended with FYM (40.6xl04 g-1), urea (38.8xl04 g-1) of dry soil at different concentration 2.0, 1.5 and 2.0%, respectively. In control where soil was not amended with any organic amendment, the number of fungi was 13.0xl04 to 16.8x104 g-1 14.4xl04 to 16.8x104 g-1 13.8xl04 to 16.8xl04 g-1 in urea, FYM and Vermicompost, respectively. A total 25 fungi were observed during the experimental period. Eighteen were observed when soil amended with urea, twenty-two observed when soil amended with FYM and 20 when soil amended with vermicompost. In control soil only fifteen fungi were recorded. The result showed that the number of fungi was increased in amended soil. Qualitatively, the fungi Rhizopus stolomfer, Aspergillus niger, Aspergillus flavus, Trichoderma harzianum, Penicillium citrinum, Alternaria alternata and Curvularia lunata, White Sterile Mycelium and Black Sterile Mycelium were observed. © 2010 Academic Journals Inc.