A comparative survey of recent results on humic-like fractions in organic amendments and effects on native soil humic substances

Senesi, N.; Plaza, César; Brunetti, Gennaro; Polo, Alfredo

doi:10.1016/j.soilbio.2006.12.002

Cited by 168 publications

(105 citation statements)

References 48 publications

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“…Undoubtedly, some other factors controlled the HA composition in the grassland soils. The chemical composition of the starting materials has been considered a vital factor controlling humification process and, in turn, the HA composition, by altering the turnover rates of organic matter (Zech et al 1997;Senesi et al 2007). According to Swift et al (1979), the chemical composition of the primary materials controlled the composition, activity and distribution of decomposer community in soil.…”

Section: Soil Ha Compositionmentioning

confidence: 99%

Soil organic carbon contents, aggregate stability, and humic acid composition in different alpine grasslands in Qinghai-Tibet Plateau

Cao

Yong

et al. 2016

J. Mt. Sci.

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Alpine grassland soils on Qinghai-Tibet Plateau store approximately 33.5 Pg of organic carbon (C) at 0-0.75 m depth and play an important role in the global carbon cycle. We investigated soil organic C (SOC), water-soluble organic C (WSOC), easily oxidizable organic C (EOC), humic C fractions, aggregate-associated C, aggregate stability, and humic acid (HA) composition along an east-west transect across Qinghai-Tibet Plateau, and explored their spatial patterns and controlling factors. The contents of SOC, WSOC, EOC, humic C fractions and aggregate-associated C, the proportions of macroaggregates (2-0.25) and micro-aggregates (0.25-0.053 mm), and the aggregate stability indices all increased in the order alpine desert < alpine steppe < alpine meadow. The alkyl C, O-alkyl C, and aliphatic C/aromatic C ratio of HA increased as alpine desert < alpine meadow < alpine steppe, and the trends were reverse for the aromatic C and HB/HI ratio. Mean annual precipitation and aboveground biomass were significantly correlated with the contents of SOC and its fractions, the proportions of macro-and microaggregates, and the aggregate stability indices along this transect. Among all these C fractions, SOC content and aggregate stability were more closely associated with humic C and silt and clay sized C in comparison with WSOC, EOC, and macro-and microaggregate C. The results suggested that alpine meadow soils containing higher SOC exhibited high soil aggregation and aggregate stability. Mean annual precipitation should be the main climate factor controlling the spatial patterns of SOC, soil aggregation, and aggregate stability in this region. The resistant and stable C fractions rather than labile C fractions are the major determinant of SOC stocks and aggregate stability. Keywords

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Section: Soil Ha Compositionmentioning

confidence: 99%

Soil organic carbon contents, aggregate stability, and humic acid composition in different alpine grasslands in Qinghai-Tibet Plateau

Cao

Yong

et al. 2016

J. Mt. Sci.

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“…Composts and cured organic amendments are under study, not only for their beneficial effects on chemical, physical, biological and physiological properties on both soil and plant (Alburquerque et al 2007;Altieri and Esposito 2010;López-Piñeiro et al 2007;Senesi et al 2007;Walker and Bernal 2008), but also for their suppressive effects against plant pathogens (Alfano et al 2009a;Boulter et al 2002;Noble and Coventry 2005;van der Gaag et al 2007). Recently, close attention was paid to studies regarding re-usage in agriculture as amendments and/or organic fertilizer of olive mill wastes (OMWs) derived from olive oil production (around 2.9 9 10 6 tons per year, coming mainly from Mediterranean countries) which continues to increase worldwide (IOOC 2012).…”

Section: Introductionmentioning

confidence: 99%

Suppressive biomasses and antagonist bacteria for an eco-compatible control of Verticillium dahliae on nursery-grown olive plants

Vitullo

Altieri

Esposito

et al. 2012

Int. J. Environ. Sci. Technol.

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Two organic amendments (OMW-M1 and OMW-M2), based on olive mill wastes (OMWs) subjected to advanced processes of aerobic static storage or composting, were tested for their suppressive activity against Verticillium dahliae, the causal agent of olive Verticillium wilt. OMW-M1 and OMW-M2 drastically inhibited the pathogen growth in vitro and then were further tested in suppressive pot experiments. The amendments, mixed at 15 % (v/v) with a nursery standard plant-growth matrix, were tested alone or in combination with two biocontrol bacteria (Bacillus amyloliquefaciens and Burkholderia cepacia) selected from suppressive soils. All mixtures were artificially contaminated with V. dahliae microsclerotia (MS), the density of which was periodically monitored by either a semi-selective medium or a specific real-time Polymerase Chain Reaction technique. In plant-less pot assays conducted in a growth chamber, OMW-M1 was the most effective amendment, reducing V. dahliae MS density by 100 % after 90 days with respect to the untreated control. In nursery experiments with pot-growing olive plants, OMW-M1, particularly when combined with the biocontrol bacteria, confirmed its strong suppressive activity reducing up to 100 % the density of V. dahliae MS in the rhizosphere behaving even better than a commercial biofungicide (Trichoderma asperellum TV1) used as a control. The best combined treatment also reduced plant mortality and increased root and shoot extension. It is concluded that organic amendments from stabilized olive mill by-products showed positive agronomic and phytosanitary properties on pot-growing olive plants and, particularly when enriched with biocontrol agents, they are potentially suitable for use in sustainable agriculture.

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“…This implied that increase in the quantity of composted market waste applied resulted in the reduction of PAHs concentration and this corroborated the findings of Agamuthu and Dadrasnia (2013) where there was a rapid decrease in TPH of all soils amended with organic wastes when compared with non-amended soil. Nitrogen amendment enhance microbial degradation of PAHs (Senesi et al, 2007). …”

Section: Effect Of Compost Application On the Soil Polycyclic Aromatimentioning

confidence: 99%

Biodegradation of polycyclic aromatic hydrocarbons in crude oil-contaminated soil using composted market waste

Bada¹,

Towolawi²,

Anyiam³

2018

Journal of Applied Sciences and Environmental Management

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ABSTRACT:Release of crude oil and its products into the environment has resulted in many problems that are of global concern. The objective of this study was to determine effect of Composted Market Waste (CMW) on the degradation of Polycyclic Aromatic Hydrocarbons (PAHs) in crude oil-contaminated soil. Pot experiment was carried out with 1 kg of soil in 7 litres perforated container contaminated with 10 % w/ w crude oil, followed by amendment with CMW at 0, 350 and 450 g. The soil was analysed for PAH after 21 days using GC-FID. Acenaphthylene, Acenaphthene, Phenanthrene, Benzo (g,h,i) perylene, Indeno (1,2,3-cd) perylene, Pyrene and Benzo (b) fluoranthene were present in the crude oil-contaminated soil. Concentrations of PAHs at the end of the experiment were 188.40, 38.45 and 32.73 ppm in control, 350 and 450 g respectively. Composted market waste enhanced degradation of PAHs in crude oil-contaminated soil.

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A comparative survey of recent results on humic-like fractions in organic amendments and effects on native soil humic substances

Cited by 168 publications

References 48 publications

Soil organic carbon contents, aggregate stability, and humic acid composition in different alpine grasslands in Qinghai-Tibet Plateau

Soil organic carbon contents, aggregate stability, and humic acid composition in different alpine grasslands in Qinghai-Tibet Plateau

Suppressive biomasses and antagonist bacteria for an eco-compatible control of Verticillium dahliae on nursery-grown olive plants

Biodegradation of polycyclic aromatic hydrocarbons in crude oil-contaminated soil using composted market waste

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