Plant and soil microbial community responses to different water management strategies in an almond crop

Climate change is one of the main challenges facing the agricultural sector as it strives to meet global food needs. In arid and semiarid areas, the scarcity of water imposes the use of alternative sources - such as reclaimed water (RW) or desalinated water (DW) - and of deficit irrigation strategie...

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Authors: Romero-Trigueros, Cristina, Díaz-López, Marta, Vivaldi, Gaetano Alessandro, Camposeo, Salvatore, Nicolás Nicolás, Emilio, Bastida, F.
Format: article
Status:Versión aceptada para publicación
Publication Date:2021
Country:España
Institution:Consejo Superior de Investigaciones Científicas (CSIC)
Repository:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/263791
Online Access:http://hdl.handle.net/10261/263791
Access Level:Open access
Keyword:Deficit irrigation
Enzyme activities
Microbial biomass
Plant water status
Saline treated wastewater
Yield
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oai_identifier_str oai:digital.csic.es:10261/263791
network_acronym_str ES
network_name_str España
repository_id_str
dc.title.none.fl_str_mv Plant and soil microbial community responses to different water management strategies in an almond crop
title Plant and soil microbial community responses to different water management strategies in an almond crop
spellingShingle Plant and soil microbial community responses to different water management strategies in an almond crop
Romero-Trigueros, Cristina
Deficit irrigation
Enzyme activities
Microbial biomass
Plant water status
Saline treated wastewater
Yield
title_short Plant and soil microbial community responses to different water management strategies in an almond crop
title_full Plant and soil microbial community responses to different water management strategies in an almond crop
title_fullStr Plant and soil microbial community responses to different water management strategies in an almond crop
title_full_unstemmed Plant and soil microbial community responses to different water management strategies in an almond crop
title_sort Plant and soil microbial community responses to different water management strategies in an almond crop
dc.creator.none.fl_str_mv Romero-Trigueros, Cristina
Díaz-López, Marta
Vivaldi, Gaetano Alessandro
Camposeo, Salvatore
Nicolás Nicolás, Emilio
Bastida, F.
author Romero-Trigueros, Cristina
author_facet Romero-Trigueros, Cristina
Díaz-López, Marta
Vivaldi, Gaetano Alessandro
Camposeo, Salvatore
Nicolás Nicolás, Emilio
Bastida, F.
author_role author
author2 Díaz-López, Marta
Vivaldi, Gaetano Alessandro
Camposeo, Salvatore
Nicolás Nicolás, Emilio
Bastida, F.
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Ministerio de Economía, Industria y Competitividad (España)
Agencia Estatal de Investigación (España)
European Commission
Fundación Séneca
Regione Puglia
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Deficit irrigation
Enzyme activities
Microbial biomass
Plant water status
Saline treated wastewater
Yield
topic Deficit irrigation
Enzyme activities
Microbial biomass
Plant water status
Saline treated wastewater
Yield
description Climate change is one of the main challenges facing the agricultural sector as it strives to meet global food needs. In arid and semiarid areas, the scarcity of water imposes the use of alternative sources - such as reclaimed water (RW) or desalinated water (DW) - and of deficit irrigation strategies, such as regulated deficit irrigation (RDI), in order to maintain productivity. The impact of both alternative water sources and RDI strategies on soil microbial communities in conjunction with the crop response has been little studied, and far less in fruit trees. Here, we evaluated the effects of the irrigation water quantity (RDI or the optimal water amount) and quality (DW or saline RW) on: i) the biomass, composition, and activity of the soil microbial community, and ii) the plant agro-physiological response at the level of the water status, nutrients, vegetative growth, and yield of almond trees. The DW-RDI treatment had a lower vegetative growth than the rest, reducing the nutrient requirements and increasing the contents of organic carbon and nitrogen in soil. This coincided with a significant increase in the bacterial biomass and enzyme activities in soil, as well as with a decrease in plant nutrient use efficiencies and yield. Irrigation with RW increased the fungal biomass. When there were no water restrictions (RW-FI), none of the plant agro-physiological parameters were affected; when RDI was applied (RW-RDI), the highest soil sodicity was reached and vegetative growth and yield were negatively affected, although the plant nutrient use efficiencies did not decrease as much as with DW-RDI. In addition, the plant nutrient use efficiencies were negatively correlated with the soil enzyme activities. These results improve our knowledge of the functioning of plant-soil interactions in Mediterranean crops subjected to different irrigation strategies.
publishDate 2021
dc.date.none.fl_str_mv 2021
2022
2022
2022
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Postprint
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/263791
url http://hdl.handle.net/10261/263791
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
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info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/AGL2017-85755-R
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http://dx.doi.org/10.1016/j.scitotenv.2021.146148
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dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
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dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
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spelling Plant and soil microbial community responses to different water management strategies in an almond cropRomero-Trigueros, CristinaDíaz-López, MartaVivaldi, Gaetano AlessandroCamposeo, SalvatoreNicolás Nicolás, EmilioBastida, F.Deficit irrigationEnzyme activitiesMicrobial biomassPlant water statusSaline treated wastewaterYieldClimate change is one of the main challenges facing the agricultural sector as it strives to meet global food needs. In arid and semiarid areas, the scarcity of water imposes the use of alternative sources - such as reclaimed water (RW) or desalinated water (DW) - and of deficit irrigation strategies, such as regulated deficit irrigation (RDI), in order to maintain productivity. The impact of both alternative water sources and RDI strategies on soil microbial communities in conjunction with the crop response has been little studied, and far less in fruit trees. Here, we evaluated the effects of the irrigation water quantity (RDI or the optimal water amount) and quality (DW or saline RW) on: i) the biomass, composition, and activity of the soil microbial community, and ii) the plant agro-physiological response at the level of the water status, nutrients, vegetative growth, and yield of almond trees. The DW-RDI treatment had a lower vegetative growth than the rest, reducing the nutrient requirements and increasing the contents of organic carbon and nitrogen in soil. This coincided with a significant increase in the bacterial biomass and enzyme activities in soil, as well as with a decrease in plant nutrient use efficiencies and yield. Irrigation with RW increased the fungal biomass. When there were no water restrictions (RW-FI), none of the plant agro-physiological parameters were affected; when RDI was applied (RW-RDI), the highest soil sodicity was reached and vegetative growth and yield were negatively affected, although the plant nutrient use efficiencies did not decrease as much as with DW-RDI. In addition, the plant nutrient use efficiencies were negatively correlated with the soil enzyme activities. These results improve our knowledge of the functioning of plant-soil interactions in Mediterranean crops subjected to different irrigation strategies.The authors thank the Spanish Ministry and FEDER for funding the projects AGL2016-77282-C3-1-R; AGL2017–85755-R and PID2019-106226RB-C21 (AEI/FEDER, UE). The authors are grateful to the Fundación Séneca (19903/GERM/15 and 19896/GERM/15). Romero-Trigueros, C. acknowledges the financial support for a postdoctoral training and development fellowship (20363/PD/17) of Consejería de Empleo, Universidades y Empresa (CARM), through the Fundación Séneca - Agencia de Ciencia y Tecnología de la Región de Murcia. The research involved in this work was supported by the EU and Water JPI for funding, in the framework of the collaborative international consortium DESERT, financed under the ERA-NET WaterWorks 2014 Cofunded Call. This ERA-NET is an integral part of the 2015 Joint Activities developed by the Water Challenges for a Changing World Joint Programme Initiative (Water JPI) and “Fondo di Sviluppo e Coesione” 2007e2013 e APQ Ricerca Regione Puglia “Programma regionale a sostegno della specializzazione intelligente e della sostenibilita sociale ed ambientale e FutureInResearch”ElsevierMinisterio de Economía, Industria y Competitividad (España)Agencia Estatal de Investigación (España)European CommissionFundación SénecaRegione PugliaConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2022202220212022info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionhttp://hdl.handle.net/10261/263791reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement//Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/AGL2016-77282-C3-1-Rinfo:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/AGL2017-85755-Rinfo:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-106226RB-C21http://dx.doi.org/10.1016/j.scitotenv.2021.146148Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2637912026-05-22T06:33:51Z
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