Soil greenhouse gas emissions and crop production with implementation of alley cropping in a Mediterranean citrus orchard
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AuthorSánchez Navarro, Virgina; Martínez Martínez, Silvia; Acosta Avilés, José Alberto; Almagro, María; Martínez Mena, María; [et al.]
Knowledge AreaEdafología y Química Agrícola
SponsorsThis work was supported by the European Commission Horizon 2020 Project Diverfarming [Grant agreement 728003]. Raúl Zornoza acknowledges the financial support from the Spanish Ministry of Science, Innovation and Universities through the “Ramón y Cajal” Program [RYC-2015-18758].
Realizado en/conUniversidad Politécnica de Cartagena
Bibliographic CitationVirginia Sánchez-Navarro, Silvia Martínez-Martínez, Jose A. Acosta, María Almagro, María Martínez-Mena, Carolina Boix-Fayos, Elvira Díaz-Pereira, Abdelmalek Temnani, Pablo Berrios, Alejandro Pérez-Pastor, Raúl Zornoza, Soil greenhouse gas emissions and crop production with implementation of alley cropping in a Mediterranean citrus orchard, European Journal of Agronomy, Volume 142, 2023, 126684, ISSN 1161-0301, https://doi.org/10.1016/j.eja.2022.126684.
Soil carbon sequestration
The implementation of alley cropping in orchards has been suggested as a sustainable strategy to increase farmer revenues by crop diversification, enhance soil organic matter (SOM) and fertility, water retention, overall biodiversity, and contribute to climate change mitigation. Thus, the objective of this study was to assess if alley cropping with annual crops can contribute to i) mitigate soil greenhouse gas (GHG) emissions, ii) enhance C sequestration in a semiarid Mediterranean irrigated citrus orchard, and iii) increase land productivity. For this, two different treatments were established: i) conventional mandarin monoculture (MC) with no alley cropping; and ii) mandarin diversified with alley cropping of barley/vetch and fava bean (DIV). Measurements of soil CO2 and N2O emissions were periodically performed (every 7–20 days) during two years. Soil CO2 emission rates followed the soil moisture trend, and showed no significant differences between treatments. As an average, soil CO2 ...
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