Soil Microbial Biomass After Three-Year Consecutive Composted Tannery Sludge Amendment

Silva, M.D.M.; Barajas-Aceves, Martha; Araújo, Ademir Sérgio Ferreira de; Araújo, Fábio Fernando de; Melo, Wanderley José de

doi:10.1016/s1002-0160(14)60033-3

Cited by 14 publications

(18 citation statements)

References 32 publications

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“…However, it should be noted that our soil collection for enzyme analysis occurred at 60 DAE. The temporary increment of organic matter from SS explains these values (Santos et al, 2012;Silva et al, 2014). All values referring to SBR and qCO 2 suggested that microbial populations operate in the absence of metabolic stress (Silva et al, 2014).…”

Section: Discussionmentioning

confidence: 89%

“…The temporary increment of organic matter from SS explains these values (Santos et al, 2012;Silva et al, 2014). All values referring to SBR and qCO 2 suggested that microbial populations operate in the absence of metabolic stress (Silva et al, 2014). We know that organic matter from SS when applied to soils of tropical regions is rapidly degraded (Busato et al, 2012;Vieira et al, 2014 and the increase of organic matter in the soil over time is very low or zero (Yada et al, 2015, Kirchmann et al, 2017.…”

Section: Discussionmentioning

confidence: 96%

See 1 more Smart Citation

Ten years of application of sewage sludge on tropical soil. A balance sheet on agricultural crops and environmental quality

Melo

Delarica

Guedes

et al. 2018

Science of The Total Environment

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Sewage sludge (SS) has been used in agriculture on a large scale in Europe. In tropical climate conditions, due to rapid organic matter degradation, SS can provide toxic elements that can cause damage to the environment. We evaluated an area that received doses of SS for 10 years compared to mineral fertilization. The biogeochemical parameters (amylase, cellulase, invertase and dehydrogenase activity, carbon microbial biomass, basal respiration, metabolic quotient, soluble carbohydrates, total carbohydrates and glucose) and maize agronomic performance were evaluated. There was no increase of organic matter in the area due to the SS application. However, the application of SS for 10 consecutive years influenced the biogeochemical parameters evaluated in a similar way to the area that received mineral fertilizer. The SS proved efficient in completely replacing P fertilization and micronutrients. SS can also partially replace N fertilization without reducing maize productivity.

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Section: Discussionmentioning

confidence: 89%

Section: Discussionmentioning

confidence: 96%

Ten years of application of sewage sludge on tropical soil. A balance sheet on agricultural crops and environmental quality

Melo

Delarica

Guedes

et al. 2018

Science of The Total Environment

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“…In the last 10 years, composting has been used as a suitable alternative to TS processing before soil application (Santos et al 2011;Silva et al 2014). However, the composting process does not fully eliminate TS toxicity, and some previous studies have shown an increase in Cr accumulation, soil pH, and salinity after the application of composted tannery sludge (CTS) (Araujo et al 2013).…”

Section: Introductionmentioning

confidence: 99%

Repeated application of composted tannery sludge affects differently soil microbial biomass, enzymes activity, and ammonia-oxidizing organisms

Araújo

Lima

Santos

et al. 2016

Environ Sci Pollut Res

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Repeated application of composted tannery sludge (CTS) changes the soil chemical properties and, consequently, can affect the soil microbial properties. The aim of this study was to evaluate the responses of soil microbial biomass and ammonia-oxidizing organisms to repeated application of CTS. CTS was applied repeatedly during 6 years, and, at the sixth year, the soil microbial biomass, enzymes activity, and ammonia-oxidizing organisms were determined in the soil. The treatments consisted of 0 (without CTS application), 2.5, 5, 10, and 20 t ha(-1) of CTS (dry basis). Soil pH, EC, SOC, total N, and Cr concentration increased with the increase in CTS rate. Soil microbial biomass did not change significantly with the amendment of 2.5 Mg ha(-1), while it decreased at the higher rates. Total and specific enzymes activity responded differently after CTS application. The abundance of bacteria did not change with the 2.5-Mg ha(-1) CTS treatment and decreased after this rate, while the abundance of archaea increased significantly with the 2.5-Mg ha(-1) CTS treatment. Repeated application of different CTS rates for 6 years had different effects on the soil microbial biomass and ammonia-oxidizing organisms as a response to changes in soil chemical properties.

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“…Soil microorganisms represent a large fraction of global terrestrial biodiversity and mediate a range of processes important for soil quality in both natural ecosystems and agricultural systems (Lavelle and Spain 2001). However, these microorganisms respond quickly to changes in soil management (Lopes et al 2011), forest devastation (Zimmermann and Frey 2002), land degradation (Araujo et al 2013a) and the application of wastes (Silva et al 2014). Specifically, soil microbial biomass (SMB), the living component of the soil organic matter, is considered an early and sensitive indicator of soil stress caused by wastes (Santos et al 2011).…”

Section: Introductionmentioning

confidence: 99%

“…Usually, the results showed positive effects of composted waste on soil microbial properties, suggesting no toxic or detrimental effects of the waste application on soil. However, the effects of repeated applications of composted wastes, mainly under field conditions, should be evaluated to define the long-term effects of the waste on soil microbial properties (Giacometti et al 2012;Silva et al 2014). Additionally, studies employing the repeated application of composted wastes such as composted tannery sludge (CTS) under field conditions are scarce, and the limited information from earlier studies does not provide a clear picture.…”

Section: Introductionmentioning

confidence: 99%

Soil microbial properties after 5 years of consecutive amendment with composted tannery sludge

Araújo

Miranda

Oliveira

et al. 2014

Environ Monit Assess

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Composting has been recognised an alternative method to tannery sludge recycling and afterwards to be used in agriculture. As the tannery sludge contains salts and chromium, the application of composted tannery sludge (CTS) should be performed carefully to minimise negative effects on soil microbial properties. Therefore, this study evaluated the effects of 5-year repeated CTS amendment on soil microbial biomass (SMB) and enzyme activities in a tropical soil. CTS was applied during 5 years at 0, 2.5, 5, 10 and 20 Mg ha(-1), and at the fifth year, the microbial biomass C (MBC) and N (MBN), basal and substrate-induced respiration (SIR), metabolic quotient (qCO₂) and dehydrogenase (DHA) and fluorescein diacetate (FDA) hydrolysis were determined in the soil samples. Soil MBC and MBN showed the highest values with the amendment of 5 Mg ha(-1) CTS. Soil respiration increased with the increase in CTS rates, while SIR showed the highest values with the amendment of 0, 2.5 and 5 Mg ha(-1) CTS. DHA activity showed the highest values with the amendment up to 2.5 Mg ha(-1), while FDA hydrolysis increased up to the rate of 5 Mg ha(-1) CTS. The results show that after 5 years of permanent amendment of CTS, soils amended with 2.5 Mg ha(-1) have SMB and enzymatic activities similar to those in unamended soil.

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Soil Microbial Biomass After Three-Year Consecutive Composted Tannery Sludge Amendment

Cited by 14 publications

References 32 publications

Ten years of application of sewage sludge on tropical soil. A balance sheet on agricultural crops and environmental quality

Ten years of application of sewage sludge on tropical soil. A balance sheet on agricultural crops and environmental quality

Repeated application of composted tannery sludge affects differently soil microbial biomass, enzymes activity, and ammonia-oxidizing organisms

Soil microbial properties after 5 years of consecutive amendment with composted tannery sludge

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