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Soil Syst. 2018, 2(3), 52; https://doi.org/10.3390/soilsystems2030052

Response of Bacterial Communities upon Application of Different Innovative Organic Fertilizers in a Greenhouse Experiment Using Low-Nutrient Soil Cultivated with Cynodon dactylon

1
Department of Agronomy, Food, Natural Resources, Animals, and Environment—DAFNAE, University of Padova, Viale dell’Università 16, 35020 Legnaro (Padova), Italy
2
Division de Microbiología, Universidad Miguel Hernandez, 03202 San Juan de Alicante, Spain
3
Department of Biology, University of Padova, Via Ugo Bassi 58b, 35131 Padova, Italy
4
Department of Biodiversity and Molecular Ecology, Research and Innovation Centre, Fondazione Edmund Mach, Via E. Mach 1, San Michele all’Adige, 38010 Trento, Italy
5
Research Unit for Comparative Microbiome Analysis, Helmholtz Zentrum München, Ingolstädter Landstraße 1, 85764 Neuherberg, Germany
6
Research Unit Scientific Computing, Helmholtz Zentrum München, Ingolstädter Landstraße 1, 85764 Neuherberg, Germany
7
Landlab Studio Associato, Via Quintarello 12A, 36050 Quinto Vicentino (Vicenza), Italy
*
Author to whom correspondence should be addressed.
Received: 30 July 2018 / Revised: 20 August 2018 / Accepted: 4 September 2018 / Published: 6 September 2018
(This article belongs to the Special Issue Soil Organic Matter Dynamics)
Full-Text   |   PDF [870 KB, uploaded 6 September 2018]   |  

Abstract

Assessing the response of microbial communities to nutrient inputs in man-managed soils is of primary importance to understand the impact on ecosystem services provided by the soil microbiome. In this study, a low-nutrient soil was supplemented with seven different innovative fertilizers including matrixes of plant, animal, fungal or synthetic origin, and dosed to deliver the same amount of nitrogen. Growth of a potted grass crop (Cynodon dactylon) was recorded and the fertilizers were scored by the plant yield obtained in a greenhouse study. Soil was sampled at 9 and 58 days after the addition and bacterial community composition was analyzed after soil DNA extraction through pyrosequencing of 16S rDNA gene amplicons. Over 900 bacterial genera were detected, belonging to 21 described and 19 candidate phyla. In spite of the equal dose of nitrogen delivered, specific groups were fostered by given fertilizers; in particular marked effects on some phyla were displayed by a yeast-based fertilizer, which was also most effective in plant productivity. The main shifts were observed shortly after the fertilizer application, followed by a gradual stabilization of the equilibrium and by a rise in community evenness. View Full-Text
Keywords: organic fertilizers; bacterial communities; 16S amplicons organic fertilizers; bacterial communities; 16S amplicons
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Zanardo, M.; Rosselli, R.; Meneghesso, A.; Sablok, G.; Stevanato, P.; Engel, M.; Altissimo, A.; Peserico, L.; Dezuani, V.; Concheri, G.; Schloter, M.; Squartini, A. Response of Bacterial Communities upon Application of Different Innovative Organic Fertilizers in a Greenhouse Experiment Using Low-Nutrient Soil Cultivated with Cynodon dactylon. Soil Syst. 2018, 2, 52.

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