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2025-10-11

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cc-by (c) Bragg, D. et al., 2025
Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/223753

Tracking Soil Organic Carbon and Nitrogen under Organic Management: A Temporal Perspective

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https://doi.org/10.3390/agriculture15202117

Abstract

Understanding the long-term impact of agricultural practices on soil parameters is essential for improving soil quality and sustainability. Soil Organic Carbon (SOC) and total Nitrogen (N) are key indicators due to their influence on crop productivity, nutrient cycling, and microbial activity. This study assesses the effects of tillage intensity (inversion vs. non-inversion) and organic amendments (manure vs. no manure) on SOC and total N dynamics in Mediterranean rain-fed arable systems. Data were collected over a ten-year field trial (2011–2020) in Catalonia, under cereal–legume rotation and organic management, focusing on two soil depths (0–10 and 10–20 cm). Fertilization was the main driver of SOC and N changes. Non-inversion tillage promoted topsoil accumulation and microbial colonization, especially during the first period (2011–2015). The combination of manure and reduced tillage led to faster and greater SOC increases. Moreover, initial SOC levels were negatively related to SOC changes in the topsoil. These results revealed the combination of manure and non-inversion tillage as the more suitable management practice to preserve soil quality in organic arable rain-fed systems, emphasizing the importance of understanding the impact of agricultural management in the long-term under Mediterranean conditions.

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Agricultura biològica, Fecundació de les plantes, Carboni, Nitrogen, Energia de la biomassa

Subject (English)

Organic farming, Fertilization of plants, Carbon, Nitrogen, Biomass energy

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Articles publicats en revistes (Biologia, Sanitat i Medi Ambient)
Articles publicats en revistes (Biologia Evolutiva, Ecologia i Ciències Ambientals)
Articles publicats en revistes (Institut de Recerca de la Biodiversitat (IRBio))
Articles publicats en revistes (Institut de Recerca en Nutrició i Seguretat Alimentària (INSA·UB))

Citation

BRAGG, Daniel, et al. Tracking Soil Organic Carbon and Nitrogen under Organic Management: A Temporal Perspective. Agriculture-Basel. 2025. Vol. 15, num. 20, pags. 1-19. ISSN 2077-0472. [consulted: 17 of June of 2026]. Available at: https://hdl.handle.net/2445/223753

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