Vermicomposting converts fly ash to enrich soil fertility and sustain crop growth in red and lateritic soils

Bhattacharya, Suvendu; Iftikar, Wasim; Sahariah, Banashree; Chattopadhyay, G. N.

doi:10.1016/j.resconrec.2012.05.008

Cited by 63 publications

(17 citation statements)

References 21 publications

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“…Thus, harmful effects such as the low availability of some nutrient elements have been reported. Other undesirable effects include excess salinity from fly ash to a soil-plant-human system, potential toxic side effects from heavy metals and a slow degradation rate of fly ash in soils [54][55][56].…”

Section: Accepted Manuscriptmentioning

confidence: 99%

A comprehensive review on the applications of coal fly ash

Yao

Sarker

et al. 2015

Earth-Science Reviews

1,391

568

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Coal fly ash, an industrial by-product, is derived from coal combustion in thermal power plants. It is one of the most complex anthropogenic materials, and its improper disposal has become an environmental concern and resulted in a waste of recoverable resources. There is a pressing and ongoing need to develop new recycling methods for coal fly ash. The present review first describes the generation, physicochemical properties and hazards of coal fly ash at the global level, and then focuses on its current and potential applications, including use in the soil amelioration, construction industry, ceramic industry, catalysis, depth separation, zeolite synthesis, etc.Finally, the advantages and disadvantages of these applications, the mode of fly ash utilization worldwide and directions for future research are considered.

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Section: Accepted Manuscriptmentioning

confidence: 99%

A comprehensive review on the applications of coal fly ash

Yao

Sarker

et al. 2015

Earth-Science Reviews

1,391

568

View full text Add to dashboard Cite

show abstract

“…Various greenhouse and field studies have examined the effects of a variety of vermicomposts on a wide range of crops including cereals and legumes (Souzaa et al 2013;Chan and Griffiths 1988), vegetables (Doan et al 2013;Edwards and Burrows 1988;Atiyeh et al 2000a), ornamental and flowering plants (Edwards and Burrows 1988;Atiyeh et al 2000b) and field crops (Najar and Khan 2013a;Bhattacharya et al 2012;Wu et al 2012;Valdez-Péreza et al 2011). Most of these investigations have confirmed that vermicomposts usually have significant beneficial effects on plant growth and yield.…”

Section: Introductionmentioning

confidence: 99%

Effect of macrophyte vermicompost on growth and productivity of brinjal (Solanum melongena) under field conditions

Najar

Khan

Hai

2015

Int J Recycl Org Waste Agricult

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Background Macrophytes (fresh water plants) comprise a diverse group of the flora which play important roles in the maintenance of trophic food chains and biogeochemical processes, but are deleterious when present in excess. However, due to various anthropogenic activities, there is accumulation of nutrients in aquatic ecosystems resulting in massive macrophytic growth. These weeds do not possess any economic value and remain laid on lake shores after harvesting and become a source of odor problem, thus posing a challenge to the lake management authorities regarding their proper disposal. However, vermicomposting turns these macrophytes into materials useful in horticulture/agriculture for restoration of soil fertility, in addition to providing a solution to the nuisance of harvested weeds. Results The study was conducted to investigate the effect of different rates (2, 4 and 6 t/ha) of macrophyte-based vermicompost on germination, growth and yield of Solanum melongena under field conditions. The data revealed that different rates of vermicompost produced varied and significant effect (P \ 0.05) as compared to the control on germination, growth and yield parameters with maximum value recorded at 6 t/ha, followed by 4 t/ha and the least at 2 t/ha. The dose of 6 t/ha significantly (P \ 0.05) increased germination (22.56 ± 2.5 %), number of fruits per plant (3.55 ± 0.07) mean fruit weight (73 ± 5.0 g), yield per plant (1.48 ± 0.05 kg) and marketable fruits (28.66 ± 3.0 %) when compared with the control. The study suggests that macrophyte-based vermicompost as a potential source of plant nutrients for sustainable crop production. Conclusion Macrophyte-based vermicompost is an efficient quality yielder and economy enhancer for sustainable agriculture especially for the communities having vegetable gardens around lakes will benefit by using macrophyte vermicompost, a balanced and low-cost organic fertilizer.

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“…Therefore, the physico-chemical properties of TICA significantly differ from those of thermal power plant CA (TPCA). Earlier, we have identified the potential of CA for agricultural application as a nutrient source [5,6]. However, long-term application of CA may lead to severe contamination because of the presence of toxic compounds.…”

Section: Introductionmentioning

confidence: 99%

Characterization and Risk Evaluation of Tea Industry Coal Ash for Environmental Suitability

Goswami

Raul

Sahariah

et al. 2014

CLEAN Soil Air Water

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Overload of coal ash (CA) generated from several coal fired plants poses acute problems of disposal and contamination of soil and water resources. Since CA generated from tea factories has not yet been characterized from environmental viewpoints, we attempted to critically characterize the agro-ecological compatibility of CA samples (CA1, CA2, CA3, and CA4) collected from four distantly located tea factories. Among these samples, we found CA3 and CA4 to have low pH and high metal content. Accordingly, we restricted our study to predict the solubility pattern of non-metal and metal ions in CAs by adopting a geochemical model (Visual MINTEQ). Various fractions of metals like Fe, Mn, Cu, Zn, Cr, Ni, and Pb were studied to figure out the mobility pattern of metals in the environment. The results clearly indicate that tea industry derived CA substantially differs from thermal power plant CA as regards several physico-chemical properties, for example, sandy texture, low pH and high nutrient content. Risk evaluation of human exposure to trace elements and the metal fractionation study led us to conclude that CA1 and CA2 are highly compatible with agricultural use.

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Vermicomposting converts fly ash to enrich soil fertility and sustain crop growth in red and lateritic soils

Cited by 63 publications

References 21 publications

A comprehensive review on the applications of coal fly ash

A comprehensive review on the applications of coal fly ash

Effect of macrophyte vermicompost on growth and productivity of brinjal (Solanum melongena) under field conditions

Characterization and Risk Evaluation of Tea Industry Coal Ash for Environmental Suitability

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