Comparison of organic substrates in urban rooftop agriculture, towards improving crop production resilience to water stress in Mediterranean cities

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RECERCAT Home > Universitat Autònoma de Barcelona > Articles escrits per personal UAB o publicats per la universitat > View document

dc.contributor.author	Parada, Felipe
dc.contributor.author	Ercilla Montserrat, Mireia
dc.contributor.author	Arcas Pilz, Verónica
dc.contributor.author	López Capel, Elisa
dc.contributor.author	Carazo, Núria
dc.contributor.author	Montero Camacho, Juan Ignacio
dc.contributor.author	Gabarrell Durany, Xavier
dc.contributor.author	Villalba, Gara
dc.contributor.author	Rieradevall, Joan
dc.contributor.author	Muñoz Odina, Pere
dc.date	2021
dc.identifier	https://ddd.uab.cat/record/240830
dc.identifier	urn:10.1002/jsfa.11241
dc.identifier	urn:oai:ddd.uab.cat:240830
dc.identifier	urn:oai:egreta.uab.cat:publications/19bffc44-ce64-46f3-af08-b4fac0853650
dc.identifier	urn:scopus_id:85104464338
dc.identifier	urn:wos_id:000640806900001
dc.identifier	urn:pmid:33797092
dc.description.abstract	Unidad de excelencia María de Maeztu CEX2019-000940-M
dc.description.abstract	BACKGROUND: Urban agriculture contributes to meet food production demand in cities. In a context of low water availability, it is important to consider alternatives that are able to maintain production. This study aimed to assess the use of substrates made from local materials and high water retention capacity as an alternative for urban agriculture in periods with water stress. Different substrates were used for 3 consecutive crop cycles of lettuce (Lactuca sativa L.) during the spring and summer periods of 2018 to observe these substrates performance during warmer periods of the year in an integrated rooftop greenhouse near Barcelona. The substrates used were coir commercial organic substrate, vegetable Compost from urban organic waste, Perlite (as control) commercial standard substrate, and a Mixture of the urban Compost and Perlite (1:1). Substrate crop performance was assessed under conventionally irrigation (0-5 cbar) and water restricted conditions (irrigation stop until the water tension inside the perlite bags reached -20 cbar). RESULTS: The results demonstrate that the Compost and Mix yields were similar to those obtained from Perlite (11.5% y 3.7% of more production in a restricted water condition average values). Compared to the Perlite, the organic substrates increased the crops resilience to water restriction, through biomass accumulation comparison, it took longer for Coir to lose water (1 and 2 test); however, when dryness began, it occurred very quickly. CONCLUSION: The vegetable Compost and the substrate Mixture presented tolerance to water restriction when water restriction reached -20 cbar.
dc.format	application/pdf
dc.language	eng
dc.publisher
dc.relation	Ministerio de Economía y Competitividad CTM2016-75772-C3-1-R
dc.relation	Ministerio de Ciencia e Innovación CEX2019-000940-M
dc.relation	Agència de Gestió d'Ajuts Universitaris i de Recerca FI-DGR 2014
dc.relation	Journal of the Science of Food and Agriculture ; (April 2021)
dc.rights	open access
dc.rights	Tots els drets reservats.
dc.rights	https://rightsstatements.org/vocab/InC/1.0/
dc.subject	Circular economy
dc.subject	Sustainable cities
dc.subject	Soilless system
dc.subject	Water stress resilience
dc.subject	Water restriction
dc.subject	Urban Agriculture
dc.title	Comparison of organic substrates in urban rooftop agriculture, towards improving crop production resilience to water stress in Mediterranean cities
dc.type	Article

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