Feasibility of Eudrilus eugeniae and Perionyx excavatus in vermicomposting of water hyacinth

Varma, V. Sudharsan; Kalamdhad, Ajay S.; Khwairkpam, Meena

doi:10.1016/j.ecoleng.2016.05.058

Cited by 32 publications

(6 citation statements)

References 28 publications

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“…There was a 20% total decrease in VS content from week 0 to week 12. This decrease is lower than the 58% reported by Lalander et al [35] during vermicomposting of cow manure and the 33% reported by Varma et al [51] during vermicomposting of water hyacinth and cow manure. A reduction in VS is attributed to the bioconversion of waste material by earthworms, and it indicates the degree of maturity of the product [47].…”

Section: Physio-chemical Characteristicscontrasting

confidence: 54%

Assessment of a Cattle Manure Vermicomposting System Using Material Flow Analysis: A Case Study from Uganda

et al. 2019

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Growth in cattle population is associated with increased manure generation whose current management in low-income countries is associated with health and environmental problems as well as low utilization rates. This trend can be reversed by promoting better manure management technologies. This study assessed vermicomposting as one of the technologies to manage organic wastes, using the case study in Uganda. A vermicomposting system using cattle manure and earthworms (Eudrilus euginea) was monitored for one year with the harvesting of products (compost, earthworm biomass) after every three months. Vermicompost samples from the beginning of the experiment and after every harvest were analyzed for the following parameters: pH, ash content, volatile and total solids, nutrients N, P, K, and C. Emissions of CO2, CH4, NH3, and N2O were also measured. Material flow analysis was used to determine the flows and retention of nutrients within the system. Results showed that total solids, ash, N, P, and K content significantly increased, while contents of volatile solids and C, as well as the pH, significantly decreased over time. Of the materials that entered the vermicomposting system, 46% went to vermicompost, 2% into earthworms, and 52% was lost to the atmosphere. Substance flow analysis showed that 30% of C went to vermicompost, 69% was emitted to the atmosphere, and 2% ended up in earthworms while 75% of N was transferred to vermicompost, 7% went to earthworms, and 18% escaped into the atmosphere. The cumulative emissions were 102 g CO2 kg−1 waste, 7.6 g CH4 kg−1 waste, and 3.943 × 10−5 g N2O kg−1 waste on a dry basis, while NH3 was not detected throughout the measurement time. Compared to other manure management methods, vermicomposting demonstrated good potential in conserving nutrients as well as reducing greenhouse gas emissions.

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Section: Physio-chemical Characteristicscontrasting

confidence: 54%

Assessment of a Cattle Manure Vermicomposting System Using Material Flow Analysis: A Case Study from Uganda

et al. 2019

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“…It was observed that the control treatment CM 100 showed the highest TN (3.16%) in the final end product, however it was non significant (p < 0.05) with other treatments except for the treatment DW 100 (control). The addition of many metabolic components like excretory products, mucus and body fluids by worms, decomposition of organic matter, respiratory activity ofmicrobes, and earthworms causing loss in TOC during the vermicomposting process led to improvements in nitrogen content in the final product [36,38,39]. The other factors that can improve the nitrogen content of the vermicompost include nitrogen-fixing bacteria and dead tissues of earthworms [40,41].…”

Section: Chemical Properties Of Coprolitesmentioning

confidence: 99%

Unveiling the Efficiency of Psychrophillic Aporrectodea caliginosa in Deciphering the Nutrients from Dalweed and Cow Manure with Bio-Optimization of Coprolites

et al. 2021

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There is an immense demand for vermicomposting employing psychrophilic vermiculture (Aporrectodea caliginosa) for management of wastes under the Himalayan ecosystem. Dalweed (weeds from the world-famous urban Dal Lake) and cow manure (CM) are cheaply and abundantly available bio resources in Kashmir valley. Dalweed (DW), disposed of in the heart of the city, ascribes unpleasant effects on tourism and the natural ecosystem. Initial substrate mixtures of DW and CM with different ratios (CM100, DW100, CM80:DW20, CM60:DW40, CM40:DW60 and CM20:DW80) and castings harvested were analyzed for the following parameters: pH, TOC, TN, NO3- P, K, Fe, Zn, C:N, C:P, and C:S ratio. The results of a 56day study revealed in consistency and disparity towards the bio-optimization of coprolites depending upon the type of waste residue and mixture ratio used. Treatments with medium to low dalweed residues (CM60:DW40 followed by CM80:DW20) were found to be optimum and significantly primed chemical properties of castings using A. caligenosa. C:N, C:P, and C:S ratios showed a non-linear response with maximum decrease in C:N ratio by 35%, C:P ratio by 38% in CM100, and C:S ratio by 67% in DW100. Humification ratio, humification index, and percent humic acids were changed across all the treatments with the highest respective values of 21.33 ± 1.05, 11.33 ± 0.76, and 47.83 ± 0.76 for CM60:DW40. Results also showed that the earthworm population and biomass significantly increased with the highest respective increments of 57.53% and 74.88% in CM60:DW40 over initial values. Moreover, the highest number of cocoons (95.67 ± 1.17) were recorded within CM60:DW40 and the lowest in the control (43.33 ± 1.53). Dehydrogenase and fluorescein diacetate activities were inconsistent with the highest in CM40:DW60 (64.64%) and CM20:DW80 (63.54%) respectively over the initial substrates, while highest urease activity (74.40%) was observed from CM100. The results highlight the role of A. caliginosa in sustainable transformation of CM and DW with insightful, beneficial, and priming impacts on castings for its agronomic value.

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“…When the substrates are acceptable, the worms along with microorganisms quickly act upon and accelerate the process of decomposition as well as multiply at faster rates. This has been reported while vermicomposting of weeds like, Parthenium hysterophorus, Lantana camara, Eichhornia crassipes, seaweeds and others (Ananthavalli et al, 2019;Rajiv et al, 2013;Suthar and Sharma, 2013;Varma et al, 2016). The number of worms, biomass and cocoons recovered from three different combinations of Alternanthera ficoidea and cow dung after 50 days of vermicomposting is shown in Table 2.…”

Section: Resultsmentioning

confidence: 68%

Effect of pre-composting on seed viability and subsequent vermicomposting of an invasive alien weed,Alternanthera ficoidea (L.) P. Beauv.

Thangamani¹,

Baskaran²,

Prakash³

2020

Int. J. Curr. Res. Biosci. Plant Biol.

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Feasibility of Eudrilus eugeniae and Perionyx excavatus in vermicomposting of water hyacinth

Cited by 32 publications

References 28 publications

Assessment of a Cattle Manure Vermicomposting System Using Material Flow Analysis: A Case Study from Uganda

Assessment of a Cattle Manure Vermicomposting System Using Material Flow Analysis: A Case Study from Uganda

Unveiling the Efficiency of Psychrophillic Aporrectodea caliginosa in Deciphering the Nutrients from Dalweed and Cow Manure with Bio-Optimization of Coprolites

Effect of pre-composting on seed viability and subsequent vermicomposting of an invasive alien weed,Alternanthera ficoidea (L.) P. Beauv.

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