Combined effects of reduced irrigation and water quality on the soil microbial community of a citrus orchard under semi-arid conditions

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388971%3A_____%2F17%3A00476236" target="_blank" >RIV/61388971:_____/17:00476236 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1016/j.soilbio.2016.10.024" target="_blank" >http://dx.doi.org/10.1016/j.soilbio.2016.10.024</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.soilbio.2016.10.024" target="_blank" >10.1016/j.soilbio.2016.10.024</a>

Result language

angličtina

Original language name

Combined effects of reduced irrigation and water quality on the soil microbial community of a citrus orchard under semi-arid conditions

Original language description

Sustainable agriculture in Mediterranean areas is compromised by the structural deficit of water resources. Under this situation, the impacts of alternative water managements on the microbial community, as a critical component of the soil quality, need to be properly understood. We evaluated the long-term impacts of irrigation systems differing on the quantity and quality of water, and their interactions, on the biomass (phospholipid fatty acid analysis), diversity and composition (16S rRNA gene profiling), and enzyme activities of the soil microbial community of an orchard cultivated with grapefruit trees in South-East Spain. The impact of water quantity was evaluated by irrigation with optimal amount of water or by irrigation with a reduced volume of water in the temporal frame when the crop is less sensitive, so-called regulated deficit irrigation (RDI). The impact of water quality was evaluated attending to the source of the irrigation water: water from a river channel-transfer (TW) or reclaimed water from a wastewater treatment plant (RW). Electrical conductivity was higher in soils irrigated with RW than in soils irrigated with TW. The content of total organic C in the soil was affected by water quality but not by water quantity. Soils irrigated with TW showed higher total organic C than soils irrigated with RW. As in the case of plant productivity, RDI had a negative impact on plant productivity, soil microbial biomass and enzyme activities in summer. This finding indicates a slow-down of organic matter decomposition under restricted irrigation. Bacterial biomass was more sensitive to RDI when RW was used, whereas the fungal biomass was more sensitive to RDI when TW was used. nn

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10606 - Microbiology

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Soil Biology and Biochemistry

ISSN

0038-0717

e-ISSN

—

Volume of the periodical

104

Issue of the periodical within the volume

JAN 2017

Country of publishing house

GB - UNITED KINGDOM

Number of pages

12

Pages from-to

226-237

UT code for WoS article

000389555900022

EID of the result in the Scopus database

2-s2.0-84994844548