Vermi-converted Tea Industry Coal Ash efficiently substitutes chemical fertilization for growth and yield of cabbage (Brassica oleracea var. capitata) in an alluvial soil: A field-based study on soil quality, nutrient translocation, and metal-risk remediation

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Goswami, Linee,1985-Örebro universitet,Institutionen för naturvetenskap och teknik (author)

Vermi-converted Tea Industry Coal Ash efficiently substitutes chemical fertilization for growth and yield of cabbage (Brassica oleracea var. capitata) in an alluvial soil : A field-based study on soil quality, nutrient translocation, and metal-risk remediation

Article/chapterEnglish2024

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Elsevier,2024
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LIBRIS-ID:oai:DiVA.org:oru-109434
https://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-109434URI
https://doi.org/10.1016/j.scitotenv.2023.168088DOI

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Language:English
Summary in:English

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SwePubSwePub

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Subject category:ref swepub-contenttype
Subject category:art swepub-publicationtype

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Although coal ashes (CA) can be converted into an eco-friendly product through vermicomposting, the utility of vermiconverted CA in agriculture still needs to be explored. Therefore, the feasibility of vermicomposted tea industry coal ash (VCA) as an alternative nutrient source for cabbage (Brassica oleracea, var. Capitata) production was evaluated through an on-field experiment in alluvial soil. Two types of vermicomposts were prepared using Eisenia fetida (VCAE) and Lampito mauritii (VCAL) and were applied in different combinations with chemical fertilizers. The results revealed a significant increase in nutrient availability (nitrogen, phosphorus, and potassium) in the soil treated with VCA, alongside a concurrent build-up of soil organic carbon stocks, activation of microbial growth, and enhanced soil enzyme activity. Additionally, VCA application substantially reduced toxic metals in the soil, thereby improving soil health and promoting the uptake of essential nutrients (nitrogen, phosphorus, potassium, iron, manganese, copper, and zinc) in cabbage. Correspondingly, VCA application reduced the bioaccumulation of potentially toxic metals (chromium, lead, and cadmium) from coal ash, ensuring safer food production. Notably, a 25 % substitution of chemical fertilizers with VCA and farmyard manure (FYM) led to a two-fold increase in the growth and productivity of cabbage. The economic assessment also indicated that large-scale and sustainable recycling of toxic tea industry coal ash in agriculture is feasible. Hence, by integrating VCA-based nutrient management into agricultural practices, developing nations can take significant strides toward achieving circular economy objectives while addressing environmental challenges associated with CA disposal.

Subject headings and genre

LANTBRUKSVETENSKAPER Lantbruksvetenskap, skogsbruk och fiske Markvetenskap hsv//swe
AGRICULTURAL SCIENCES Agriculture, Forestry and Fisheries Soil Science hsv//eng
Agronomic efficiency
Heavy metal sorption-dynamics
Nitrogen recovery efficiency
Tea Industry Coal ash
Vermi-remediation

Added entries (persons, corporate bodies, meetings, titles ...)

Ekblad, Alf,1957-Örebro universitet,Institutionen för naturvetenskap och teknik(Swepub:oru)afed (author)
Choudhury, RatanSoil and Agro-bioengineering Lab, Department of Environmental Science, Tezpur University, Tezpur, Assam 784028, India (author)
Bhattacharya, Satya SundarSoil and Agro-bioengineering Lab, Department of Environmental Science, Tezpur University, Tezpur, Assam 784028, India (author)
Örebro universitetInstitutionen för naturvetenskap och teknik (creator_code:org_t)

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In:Science of the Total Environment: Elsevier9070048-96971879-1026

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