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

Bastida, Felipe; Torres, I.F.; Trigueros, Cristina Romero; Baldrián, Petr; Větrovský, Tomáš; Bayona, J.M.; Alarcón, Juan José; Hernández, Teresa; Garcı́a, Carlos; Nicolás, Emilio

doi:10.1016/j.soilbio.2016.10.024

Cited by 114 publications

(73 citation statements)

References 64 publications

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“…Given their contrasting OTU compositions, it is perhaps not surprising that the bacterial communities in different soil compartments displayed varied responses to irrigation water quality and biochar supplementation. The trends observed in our study were in accordance with the results of Suleiman et al (2016) and Bastida et al (2017), who demonstrated that reclaimed water or piggery wastewater irrigation increased the abundance of Bacteroidetes, and decreased the abundance of Acidobacteria. In addition, biochar supplementation had the same trend .…”

Section: Tablesupporting

confidence: 92%

“…In this study, we characterized microbiomes associated with rhizosphere and bulk soil, and maize root endospheres in systems which received biochar supplementation and irrigation with different quality waters. Bastida et al (2017) did not observe any differences in microbial diversity in soils irrigated with reclaimed wastewater, but our study suggests that irrigation with reclaimed water significantly increases the Shannon diversity index of microbiomes in rhizosphere soil. This may be related to the background of soil, the properties of reclaimed water, and the irrigation regime.…”

Section: Effects Of Coupled Biochar Supplementation and Irrigation Wacontrasting

confidence: 89%

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Variations in soil and plant-microbiome composition with different quality irrigation waters and biochar supplementation

Cui

Fan

et al. 2019

Applied Soil Ecology

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Section: Tablesupporting

confidence: 92%

Section: Effects Of Coupled Biochar Supplementation and Irrigation Wacontrasting

confidence: 89%

Variations in soil and plant-microbiome composition with different quality irrigation waters and biochar supplementation

Cui

Fan

et al. 2019

Applied Soil Ecology

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“…Whereas SOM did not differ between two types of irrigation with the same N fertilization rate (except N270). Total organic carbon content in soil is affected by water quality but not water quantity [10]. The NO 3 − -N content had no significant difference between RW irrigation and CW irrigation at the same N level (except N270).…”

Section: Changes In Soil Chemical Properties Under Rw Irrigationmentioning

confidence: 89%

“…Soil microbial diversity is mainly influenced by soil type [33], fertilization regimen [34], and irrigation method [10]. In turn, differences in taxonomic and functional diversity between microbial communities can feed back into changes in soil and ecosystem processes [35,36].…”

Section: Effects Of Rw Irrigation On Soil Bacterial Diversitymentioning

confidence: 99%

“…The well-planned utilization of RW can reduce the need for fertilizer application and improve soil fertility [6][7][8]. Microbial diversity may be significantly altered by RW irrigation, which in turn can affect soil fertility and ecosystem balance [9,10]. The effects of elevated N input on biota and biogeochemical cycles have been the focus of many studies [11].…”

Section: Introductionmentioning

confidence: 99%

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Effects of Reclaimed Water Irrigation on Microbial Diversity and Composition of Soil with Reducing Nitrogen Fertilization

Guo

Xiao

et al. 2018

Water

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Reclaimed water (RW) is an alternative water resource that has been utilized all over the world, but its environmental effects are not fully understood. Soil biodiversity is an important indicator of soil tolerance and resilience. In the present study, the impact of RW irrigation on the microbial community diversity and chemical properties of topsoil was investigated by monitoring nitrogen (N) rates. Tomato plants were grown on plots which had been irrigated with reclaimed water for 5 years with varying levels of N fertilization (N270, 270 kg ha −1 ; N216, 216 kg ha −1 ; N189, 189 kg ha −1 ; and N135, 135 kg ha −1 ). Soil bacterial community composition was analyzed by PCR amplification of the 16S rDNA gene and Illumina MiSeq high-throughput sequencing technology of a total of 770,066 quality sequences. The results showed that long-term RW irrigation altered the bacterial composition of soil in an N-dependent manner. RW irrigation increased the abundances of Gemmatimonadetes, Actinobacteria, Firmicutes, and Nitrospirae in soils. The Chao, ACE, and H indices revealed no significant difference under RW irrigation with varying levels of N fertilization. The tomato yield and partial factor productivity from applied N for RN216 increased significantly under RW irrigation with reducing N fertilization. RW irrigation increased the yield of tomato and the abundance of functional microorganisms, which eventually improved the practice of irrigating with reclaimed municipal wastewater. Meanwhile, the potential environmental and health risks of long-term RW irrigation warrant further investigation.

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Does biochar addition improve soil physicochemical properties, bacterial community and alfalfa growth for saline soils?

et al. 2023

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Biochar addition has been proven to have great potential for improving soil physicochemical properties and crop growth in salt‐affected soils. However, whether adding biochar could affect alfalfa growth and soil bacterial community in salt‐affected soils of arid regions remains poorly understood. A pot experiment was carried out to investigate the effects of corn straw biochar addition on soil physicochemical properties, bacterial community and alfalfa yield in saline soils. There were 12 treatments in total, combining three biochar addition rates of 0, 20 and 40 g kg−1 (referred to as B0, B2 and B4, respectively) and four salinity levels of 0, 2, 4 and 6 g kg−1 (referred as to S0, S2, S4 and S6, respectively). The results indicated that biochar addition significantly increased soil organic carbon (SOC), electrical conductivity (EC), soil water content (SWC), available nitrogen (AN) and phosphorus (AP) and mesopores fraction, but decreased soil bulk density (BD), pH and macropores fraction for different salinity levels. In general, biochar addition had an adverse effect on alfalfa yield due to the aggregated stresses from the increased EC and mesopores fraction, especially at high salinity levels. On average, biochar addition decreased the total yield of the two years by 14.2%, 25.3%, 38.3% and 60.4% for S0, S2, S4 and S6, respectively. Biochar addition significantly changed bacterial community composition with higher relative abundances of Proteobacteria and Bacteroidetes but lower relative abundances of Actinobacteria and Acidobacteria under S2–S6. On average, both soil salinity and biochar treatments decreased soil bacterial richness by 5.7–14.6% and 4.1–8.8% compared with S0 and B0, respectively, but they did not significantly affect the bacterial diversity. The redundancy analysis (RDA) suggested that EC, SWC, pH, AN and AP were the most critical factors driving the change of soil bacterial community structure accounting for 69.9%, 64.7% 61.6%, 57.0% and 51.8% of the variation, respectively. Therefore, our results provided valuable insight into how biochar addition would affect alfalfa yield and soil properties, including bacterial community richness and composition and structure of saline soils in arid regions.

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

Cited by 114 publications

References 64 publications

Variations in soil and plant-microbiome composition with different quality irrigation waters and biochar supplementation

Variations in soil and plant-microbiome composition with different quality irrigation waters and biochar supplementation

Effects of Reclaimed Water Irrigation on Microbial Diversity and Composition of Soil with Reducing Nitrogen Fertilization

Does biochar addition improve soil physicochemical properties, bacterial community and alfalfa growth for saline soils?

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