Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Changes on Bacterial and Fungal Soil Communities in Long-Term Organic Cropping Systems

Version 1 : Received: 13 April 2021 / Approved: 14 April 2021 / Online: 14 April 2021 (08:06:52 CEST)

How to cite: Cuartero, J.; Özbolat, O.; Sánchez-Navarro, V.; Egea-Cortines, M.; Zornoza, R.; Canfora, L.; Orrù, L.; Pascual, J.A.; Vivo, J.; Ros, M. Changes on Bacterial and Fungal Soil Communities in Long-Term Organic Cropping Systems. Preprints 2021, 2021040363 (doi: 10.20944/preprints202104.0363.v1). Cuartero, J.; Özbolat, O.; Sánchez-Navarro, V.; Egea-Cortines, M.; Zornoza, R.; Canfora, L.; Orrù, L.; Pascual, J.A.; Vivo, J.; Ros, M. Changes on Bacterial and Fungal Soil Communities in Long-Term Organic Cropping Systems. Preprints 2021, 2021040363 (doi: 10.20944/preprints202104.0363.v1).

Abstract

Microbial communities play a key role in sustainable agriculture. However, we still need more in-formation, to understand the complex response of the microbial community to long-term organic farming, which aims to reduce synthetic fertilizer and pesticide use in order to produce sustainably and improve soil quality. We have assessed the long-term effect of two organic cropping systems and a conventional system on the microbial soil community structure using high-throughput se-quencing analysis. We analyzed the link between these communities and changes in soil properties and crop yield. Results showed that the crop yield was similar among the three cropping systems. Soil properties, such as total organic carbon, nitrogen, ammonium, magnesium and boron, influ-enced changes in the bacterial community structure. A linear discriminant analysis effect size (LEfSe) showed different bacteria and fungi as key microorganism of each of the three different cropping systems, in addition, our results reflected that fungal community were more sensitive than bacteria to cropping system. This research provides an insight about changes occurred in soils, especially in microbial communities considering the effect of that changes in crop yield which were remained stable among the different cropping systems.

Subject Areas

compost; high-throughput sequencing; sheep manure; soil properties; crop yield

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