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Microplot Design and Plant and Soil Sample Preparation for 15Nitrogen Analysis
Published on: May 10, 2020
Nitrogen fertilizer dose alters fungal communities in sugarcane soil and rhizosphere
Chanyarat Paungfoo-Lonhienne1, Yun Kit Yeoh2, Naga Rup Pinaki Kasinadhuni3
11] School of Agriculture and Food Sciences, The University of Queensland, St. Lucia QLD, 4072, Australia [2] Institute for Molecular Bioscience, The University of Queensland, St. Lucia QLD, 4072, Australia.
Abstract:
Fungi play important roles as decomposers, plant symbionts and pathogens in soils. The structure of fungal communities in the rhizosphere is the result of complex interactions among selection factors that may favour beneficial or detrimental relationships. Using culture-independent fungal community profiling, we have investigated the effects of nitrogen fertilizer dosage on fungal communities in soil and rhizosphere of field-grown sugarcane. The results show that the concentration of nitrogen fertilizer strongly modifies the composition but not the taxon richness of fungal communities in soil and rhizosphere. Increased nitrogen fertilizer dosage has a potential negative impact on carbon cycling in soil and promotes fungal genera with known pathogenic traits, uncovering a negative effect of intensive fertilization.
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