Organic amendments and land management affect bacterial community composition, diversity and biomass in avocado crop soils

Bonilla, Nuria; Cazorla, Francisco M.; Martínez-Alonso, Maira; Hermoso, José Miguel; González-Fernández, Jorge; Gaju, Núria; Landa, Blanca B.; Vicente, Antonio de

doi:10.1007/s11104-012-1155-1

Cited by 65 publications

(48 citation statements)

References 30 publications

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“…Previous studies have also demonstrated that organic amendments influence the composition and diversity of soil bacterial communities in avocado orchards (20). In the present study, the DGGE results provided further evidence for the ability of organic amendments to affect microbial communities, both in the soil and the rhizosphere of avocado plants.…”

Section: Organic Amendments Induce Suppressivenesssupporting

confidence: 82%

“…The quantity and quality of organic matter input affect both the physicochemical properties of the soil and biotic factors related to soil microbiota such as microbial biomass and diversity, community structure, and soil activities (14)(15)(16)(17)(18)(19)(20). The suppressive effects of organic amendments and compost appear related to their influence on soil microbiota because soil pasteurization usually leads to the loss of suppressiveness (21,22).…”

mentioning

confidence: 99%

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Organic Amendments to Avocado Crops Induce Suppressiveness and Influence the Composition and Activity of Soil Microbial Communities

Bonilla

Vida

Martínez-Alonso

et al. 2015

Appl Environ Microbiol

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One of the main avocado diseases in southern Spain is white root rot caused by the fungus Rosellinia necatrix Prill. The use of organic soil amendments to enhance the suppressiveness of natural soil is an inviting approach that has successfully controlled other soilborne pathogens. This study tested the suppressive capacity of different organic amendments against R. necatrix and analyzed their effects on soil microbial communities and enzymatic activities. Two-year-old avocado trees were grown in soil treated with composted organic amendments and then used for inoculation assays. All of the organic treatments reduced disease development in comparison to unamended control soil, especially yard waste (YW) and almond shells (AS). The YW had a strong effect on microbial communities in bulk soil and produced larger population levels and diversity, higher hydrolytic activity and strong changes in the bacterial community composition of bulk soil, suggesting a mechanism of general suppression. Amendment with AS induced more subtle changes in bacterial community composition and specific enzymatic activities, with the strongest effects observed in the rhizosphere. Even if the effect was not strong, the changes caused by AS in bulk soil microbiota were related to the direct inhibition of R. necatrix by this amendment, most likely being connected to specific populations able to recolonize conducive soil after pasteurization. All of the organic amendments assayed in this study were able to suppress white root rot, although their suppressiveness appears to be mediated differentially.

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Section: Organic Amendments Induce Suppressivenesssupporting

confidence: 82%

mentioning

confidence: 99%

Organic Amendments to Avocado Crops Induce Suppressiveness and Influence the Composition and Activity of Soil Microbial Communities

Bonilla

Vida

Martínez-Alonso

et al. 2015

Appl Environ Microbiol

Self Cite

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“…The maximum microbial growth in organic treated plots was due to the presence of easily water soluble C and N in FYM (Paul et al, 2003), which acts as a source of energy for soil organisms, whereas the easily soluble C component was missing in mineral fertilizer (Behera et al, 2007) and, hence, the microbial population was less in the plots under NPK. The current findings are in the agreement with results obtained by (Bonilla et al, 2012, Zhang et al, 2012. The effect of organic amendments on enzyme activities was probably a combined effect of a higher degree of enzymes stabilization to humic substances and an increase in microbial biomass with increased soil carbon concentration (Garcia et al, 2008), (Liu et al, 2013, Mohammadi et al, 2011.…”

Section: Soil Propertiessupporting

confidence: 91%

“…In an era when global warming is increasingly becoming an environmental threat to human existence, there is a need for studies of this nature which can provide information on the best soil amendments and cropping systems which will enhance soil carbon sequestration in the long term with increased crop yield/productivity. Also an understanding of the dynamics of carbon (C) stock in soils, as impacted by management strategies, is necessary to identify the pathways of C sequestration in soils and for maintaining soil organic C (SOC) at a level critical for up keeping soil health and also for restraining global warming (Bastia et al, 2013, Bonilla et al, 2012. Therefore, fractionating and quantifying the labile and recalcitrant C pools could provide valuable information for better understanding SOC changes and the underlying mechanisms (Behera et al, 2007).…”

Section: Issn: 2319-7706 Volume 6 Number 6 (2017) Pp 487-496mentioning

confidence: 99%

Improvement in Soil Physical, Chemical and Microbiological Properties during Cropping Cycles under Different Nutrient Managements in Western Himalayas

Parmar¹,

Thakur²

2017

Int.J.Curr.Microbiol.App.Sci

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“…In natural ecosystems there is a balance between the synthesis and decaying of organic matter (Bonilla et al, 2012). In agroecosystems, in contrast to natural sites, agricultural treatments destroy soil aggregates and decrease SOM content (Liu et al, 2006).…”

Section: Introductionmentioning

confidence: 99%

Effects of soil regeneration methods on beneficial mesofauna in a spring triticale field

Twardowski¹,

Gruss²,

Kordas³

2017

JCEA

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The aim of the study was to determine possible changes in the abundance and species diversity of soil dwelling springtails (Collembola) and mites (Acari) due to different conditioners and soil regeneration methods applied on a spring triticale (×Triticosecale) field. The experiment was conducted in 2008-2009 at the Swojec Agricultural Experimental Station in Wrocław. Different methods of soil regeneration were used including mustard cropping as green manure, soil conditioners, i.e. EM (Effective Microorganisms) and Rosahumus. These treatments were cultivated in conventional and zero-tillage system. Zero-tillage system, due to plant residues was treated as a soil regeneration method. Soil samples for mesofauna analysis were taken twice per season when plants were at the tillering stage (22-25 BBCH) and during inflorescence emergence (BBCH 51-55). Springtails and mites were extracted from the soil using Tullgren funnels. The studied organisms were significantly more numerous in the zero-tillage cropping system in comparison to conventional tillage system, what is positive for soil quality. The distinct preference of mites Astigmata to the zero-cropping system was noted. Depending on the tillage system, different preferences of mesofauna groups to soil conditioners were found. Zero-tillage cropping is most useful soil regeneration method for beneficial mites and springtails preservation. 616Journal of Central European Agriculture, 2017, 18(3), p.616-631 DOI: 10.5513/JCEA01/18.3.1935 różne metody regenerujące glebę: uprawę gorczycy białej na nawóz zielony oraz polepszacze glebowe -EM ("Efektywne Mikroorganizmy") i preparat Rosahumus. Kombinacje te uprawiano w konwencjonalnym oraz zerowym systemie uprawy roli. System zerowy, ze względu na pozostawianie resztek pożniwnych, również potraktowano jako czynnik regenerujący glebę. Próby do analiz mezofaunistycznych pobierano dwukrotnie wiosną w każdym sezonie, w fazie wydłużania pędów pszenżyta (22-25 BBCH) oraz początku kwitnienia (51-55 BBCH). Organizmy wypłaszano z gleby z wykorzystaniem aparatów Tullgrena. Roztocze i skoczogonki były istotnie liczniejsze w uprawie zerowej w porównaniu do uprawy konwencjonalnej, co jest korzystne dla jakości gleby. Odnotowano wyraźną preferencję roztoczy z rzędu Astigmata do uprawy zerowej. W zależności od systemu uprawy roli, zaobserwowane zróżnicowane preferencje grup mezofauny w stosunku do stosowanych polepszaczy glebowych. Uprawa zerowa jest najbardziej skuteczną metodą regeneracji gleby, sprzyjającą występowaniu pożytecznych roztoczy i skoczogonków.

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Organic amendments and land management affect bacterial community composition, diversity and biomass in avocado crop soils

Cited by 65 publications

References 30 publications

Organic Amendments to Avocado Crops Induce Suppressiveness and Influence the Composition and Activity of Soil Microbial Communities

Organic Amendments to Avocado Crops Induce Suppressiveness and Influence the Composition and Activity of Soil Microbial Communities

Improvement in Soil Physical, Chemical and Microbiological Properties during Cropping Cycles under Different Nutrient Managements in Western Himalayas

Effects of soil regeneration methods on beneficial mesofauna in a spring triticale field

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