Changes of carbon, nitrogen, phosphorous, and potassium content during storage of vermicomposts prepared from different substrates

Das, Debabrata; Powell, M. A.; Bhattacharyya, Pradip; Banik, Pabitra

doi:10.1007/s10661-014-4046-5

Cited by 9 publications

(6 citation statements)

References 23 publications

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“…The results of the studies by Pattnaik et al in 2010 [30] and MB Bouche in 1997 and Balamurugan in 1999 [31,32] on composting and vermicomposting as well as other previous investigations conducted by Benitez et al in 2002 andSuthar in 2007 [33] and that by Das et al in 2014 on the variations of mineral elements during vermicomposting in different substrates showed an increasing trend in nitrogen in cow manure substrate at the end of the process which were consistent with the findings of the present study [34].…”

Section: Discussionsupporting

confidence: 92%

Evaluating changes in microbial population and earthworms weight during vermicomposting of cow manure containing co-trimoxazole

Molavi

Ehrampoush

Ebrahimi

et al. 2020

J Environ Health Sci Engineer

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Background Transmission of pathogens such as fecal coliforms is regarded as a significant concern about using livestock manure in agricultural applications.Purpose The aim of this study was to evaluate the effects of vermicomposting on fecal coliforms in cow manure containing cotrimoxazole as a widely used drug for cow diseases in animal husbandry. Methods Adaptation process of earthworms was carried out in two phases for 6 weeks; then, the main process was fulfilled in 9 weeks. The final weight of cow manure per reactor was 3.5 kg. 120 g of earthworms added to each reactor (approximately 280-300 numbers in the reactor). Co-trimoxazole was also prepared with a purity of 99% from Pakdarou Co., Iran, and added to the reactors at concentrations of 10, 20, 50, and100mg/kg. Organic carbon, total Kjeldahl nitrogen (TKN), carbon-to-nitrogen (C:N) ratio, as well as phosphorus content of the reactors were measured. Fecal coliforms and parasite eggs were counted using standard laboratory methods (i.e. the Iranian Compost Standard) for 8 weeks. ResultsThe results revealed a decrease in organic carbon, C:N ratio, and co-trimoxazole content but a rising trend in TKN and phosphorus levels. The weight of earthworms also increased at the end of the process in all reactors, except for one case. A significant reduction was observed in fecal coliforms and parasite eggs at the end of the vermicomposting. Conclusions According to the results, earthworms could be active in cow manure vermicomposting including 10-100 mg/kg concentration of co-trimoxazole antibiotic. The vermicomposting seems to be an effective method for reducing fecal coliforms and parasites in cow manure. As well, co-trimoxazole in common concentration could not have any effects on the ability of earthworms. At the end of the vermicomposting, all parameters were placed within the ICS (National) -Grade 1.

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Section: Discussionsupporting

confidence: 92%

Evaluating changes in microbial population and earthworms weight during vermicomposting of cow manure containing co-trimoxazole

Molavi

Ehrampoush

Ebrahimi

et al. 2020

J Environ Health Sci Engineer

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“…The decline in TOC with passage of time in both Vcom and Acom groups of the present study can be attributed to microbial oxidation of the labile forms of carbon to carbon dioxide 35,36 . Higher decline in TOC in the Vcom group could be due to respiration by microbes and earthworms as well as assimilation of carbon as microbial and earthworm biomass 37 .…”

Section: Discussionmentioning

confidence: 49%

“…In this form Ca can be easily taken up by plants. Calcium enrichment of the vermicompost due to mineralization and fixation of carbon dioxide to calcium carbonate has been reported by Pattnaik & Reddy 35 . Suthar 25 has also supported role of earthworm gut for an increase in calcium after vermicomposting sewage sludge mixed with crop residues and cattle dung.…”

Section: Discussionmentioning

confidence: 64%

Azolla pinnata, Aspergillus terreus and Eisenia fetida for enhancing agronomic value of paddy straw

Arora

Kaur

2019

Sci Rep

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In the present study rice straw (R, control) was mixed with Cowdung (C), Azolla (A) and cellulolytic fungus Aspergillus terreus (F) in different combinations viz. RC, RA, RF, RCF, RCA, RFA and RCFA and subjected to aerobic composting (Acom) and vermicomposting (Vcom - with Eisenia fetida). It was found that addition of azolla and cattledung to two parts straw(RCA-666: 314:20 g) caused fastest degradation (105 days), gave maximum population buildup of E. fetida (cocoons, hatchlings and worm biomass), highest decline in pH, EC, TOC and C/N ratio and maximum increase over control in N(17.72%), P(44.64%), K(43.17%), H (7.93%), S (14.85%), Ca(10.16%), Na(145.97%), Fe(68.56%), Zn(12.10%) and Cu(32.24%). Rice straw (R) took longest time for degradation i.e. 120 and 140 days and had lowest content of nutrients in Vcom as well as Acom group. RCFA was also converted into Vcom at the same time but other parameters were less than RCA except for highest content of B (19.87%), Mg(21.27%) and Mn (5.58%). Bioconversion of three parts straw (RCA-735:245:20 g) was also faster (110 days) with vermicomposting than all the mixtures of Acom group (130–140 days) but nutrient content was slightly less than RCA with 2 parts straw. The results show that azolla reduces dependence on cattledung for recycling the carbon rich rice straw and enhances its agronomic value.

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“…While the least amount of organic matter was observed in F, P, Q, R, O, U, A, S samples and animal waste were formed the highest percentage of raw material of F, P, Q, A, S samples and foliage were formed highest percentage of R, O, U samples. The study of changes of carbon, nitrogen, phosphorous, and potassium content during storage of vermicomposts prepared from different substrates shows Total Organic carbon decreased after vermicomposting for all treatments except fly ash and the highest TOC content was recorded for cattle manure followed by paddy straw, MSW, and fly ash (Das et al, 2014).…”

Section: According Tomentioning

confidence: 98%

Recycling of three different types of rural wastes employing vermicomposting technology by Eisenia fetida at low temperature

2017

Global NEST Journal

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This study was conducted to investigate the recycling of rural wastes employing vermicomposting technology by Eisenia fetida. Three medium including kitchen waste, rotting foliage and cow dung were performed in 20 treatments. Results showed that in all 20 treatments the quality of produced compost was in the standard range. Due to the high levels of nitrogen in raw material of some treatments, (e.g. treatments that percentage of cow dung and kitchen waste are zero such as M, N, O, Q, R and U) the concentration of N in mature compost was higher than other treatments. The type of raw material in the medium has particular importance on the quality of compost. So that any change in the composition due to changes in the presence or absence of macro and micronutrients can influence the compost production process and reproduction of worm. Therefore, optimization of medium components, as shown in this study is of specific importance that has effect on the vermicomposting at low temperature.

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Changes of carbon, nitrogen, phosphorous, and potassium content during storage of vermicomposts prepared from different substrates

Cited by 9 publications

References 23 publications

Evaluating changes in microbial population and earthworms weight during vermicomposting of cow manure containing co-trimoxazole

Evaluating changes in microbial population and earthworms weight during vermicomposting of cow manure containing co-trimoxazole

Azolla pinnata, Aspergillus terreus and Eisenia fetida for enhancing agronomic value of paddy straw

Recycling of three different types of rural wastes employing vermicomposting technology by Eisenia fetida at low temperature

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