Composition and Dynamics of Microbial Communities in Fly Ash-Amended Soil

Varshney, Ankur Nandan; Mohan, Sumedha; Dahiya, Praveen

doi:10.1007/978-3-030-50395-6_12

Cited by 7 publications

(3 citation statements)

References 63 publications

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“…The effect of HA addition also revealed a positive result in microbial population. Varshney et al (2020) recorded that application of fly ash did not cause any negative effect on the microbial communities and improved the population of fungi including arbuscular mychorrhizal fungi and gram negative bacteria.…”

Section: Bacterial Populationmentioning

confidence: 98%

Macronutrient availability and microbial population in fly ash amended alluvial soil

Theresa¹,

Hena²

2022

EEC

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Investigation into the effect of fly ash with three organic manures viz., farm yard manure (FYM), green leaf manures (GLM) and humic acid (HA) and inorganic fertilizers on macronutrient availability and microbial population was studied. Rice (ADT 49) was selected to raise field study. Fly ash generated from Mettur Thermal Power Station was selected for the study and examined for its physical and chemical properties. Analysis of fly ash revealed that it is neutral to alkaline (pH 8.1) in reaction. The results confirmed that fly ash contains all the essential elements required for the plant growth as that of soil except organic carbon and nitrogen. It was observed that fly ash (@ 20 t ha-1 + GLM (@ 6.25 t ha-1 with RDF (150:50:50) increased the NPK availability in soil. Application of fly ash @ 20 t ha-1 + GLM @ 6.25 t ha-1+ RDF recorded the highest soil available N (183 kg ha-1), P (25.6 kg ha-1), K (313 kg ha-1). The treatment which received fly ash + GLM with RDF (150:50:50) recorded the highest grain (5.49 t ha-1) and straw yield (6.59 t ha-1). Combining GLM and FYM with fly ash influenced more microbial populations than fly ash alone. Fly ash application did not influence the population of fungi and actinobacteria while bacterial population showed a marked level of increase. Thus the integrated effect of fly ash, manures and fertilizer was well pronounced in enhancing the macronutrient availability, microbial population and rice productivity.

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Section: Bacterial Populationmentioning

confidence: 98%

Macronutrient availability and microbial population in fly ash amended alluvial soil

Theresa¹,

Hena²

2022

EEC

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“…Long-term CFA application on peatlands also influence soil microbial communities and biodiversity. Several studies suggest that CFA application leads to the changes in the composition and activity of soil microorganisms (Woch et al, 2018;Varshney et al, 2020), which play crucial roles in nutrient cycling and ecosystem functioning. This could have implications for the overall sustainability and resilience of peatland ecosystems.…”

Section: Effect Of Cfa On Carbon Mineralization Of Peatlands With Nit...mentioning

confidence: 99%

Reduction in Carbon Dioxide Production of Tropical Peatlands Under Nitrogen Fertilizer with Coal Fly Ash Application

Priatmadi,

Septiana,

Mulyawan

et al. 2023

J. Ecol. Eng.

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The utilization of nitrogen (N) fertilizer in peatlands, with the aim of increasing crop growth and production, is also reported to increase carbon dioxide (CO 2 ) emissions. The application of coal fly ash (CFA) to soil may change soil physico-chemical characteristics, thereby influence carbon mineralization, but its effect on CO 2 production is not yet clear. Consequently, the purpose of this study was to quantify the CO 2 production of tropical peatlands that received N fertilizer and CFA. In the laboratory experiment, CFA equivalent to the application of 150 Mg•ha −1 in the field was added to peatlands with and without N fertilizer. These mixtures were then incubated at 70% waterfilled pore space (WFPS) for 30 days at room temperature. Carbon mineralization was measured on a 5-day basis, while several chemical characteristics of treated peatlands, including pH, hot water-soluble C, exchangeable-Ca, -Mg, -Fe, and -Al were measured at the conclusion of the incubation period. This study identified that N fertilizer application increased the CO 2 production of tropical peatlands from 29.25 g•kg −1 to 37.12 g•kg −1 . Furthermore, the application of CFA on tropical peatlands reduced CO 2 production of tropical peatlands with and without N fertilizer. Decreasing the amount of hot water-soluble carbon from peatlands may account for the reduced CO 2 production of peatlands with CFA. The study also showed that exchangeable-Ca, -Mg, -Fe, and -Al increased in peatlands with CFA application, and these multivalent cations were also attributed to a reduction of CO 2 production. In conclusion, the negative effects of N fertilizer application on peatlands in increasing CO 2 emission may be reduced by the application of CFA.

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“…There are some reports in literature on the effect of fly ash blended soil on the nutritional composition of Cajanuscajan, Helianthus annus, Vigna radiate, Solenum melongata, Jatrophacurcas, and S. oleracea crops [7]. Low concentration of fly ash amendment in soil increases availability of nutrients and biomass but high concentration of fly ash amendment leads to enhancement of the antioxidant enzymes present [1].…”

Section: Introductionmentioning

confidence: 99%

Variation in the Primary and Secondary Metabolites, Antioxidant and Antibacterial Potentials of Tomatoes, Grown in Soil Blended with Different Concentration of Fly Ash

Dominic

Hussain

Saleem

et al. 2022

Plants

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The aim of the study was to investigate the variation in nutritional composition, antioxidant, and antibacterial activities of tomatoes grown in fly ash blended soils, i.e.,T1 (soil 100% + 0% fly ash), T2 (soil 75%+ 25% fly ash), and T3 (soil 50% + 50% fly ash) soils. The tomato samples were harvested and screened for their proximate analysis, mineral composition, vitamin C contents, phenolic profile, and antioxidant and antibacterial activities. Results showed that T3 soil crop has high proximate composition, vitamin C, and phenolic contents as compared with T2 and T1 soil crops. Furthermore, significant variation in the elements analysis was observed in the crops grown in T1, T2, and T3 soils. T3 soil crop exhibited better antioxidant activity in term of total phenolic contents (TPC), total flavonoids contents (TFC), DPPH radical scavenging capacity, and ferric reducing potential as compared with T2 and T1 soil crops. Similarly, maximum inhibition zones were observed for T3 soil crop when tested for Staphylococcus aureus isolate 1 and 3 and methicillin-resistant Staphylococcus aureus (MRSA). In conclusion, the crop grown in T3 blended soil had high antioxidant and antibacterial potentials and better nutritional composition.

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Composition and Dynamics of Microbial Communities in Fly Ash-Amended Soil

Cited by 7 publications

References 63 publications

Macronutrient availability and microbial population in fly ash amended alluvial soil

Macronutrient availability and microbial population in fly ash amended alluvial soil

Reduction in Carbon Dioxide Production of Tropical Peatlands Under Nitrogen Fertilizer with Coal Fly Ash Application

Variation in the Primary and Secondary Metabolites, Antioxidant and Antibacterial Potentials of Tomatoes, Grown in Soil Blended with Different Concentration of Fly Ash

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