Interactions between earthworms and microorganisms in organic-matter breakdown

Edwards, C. A.; Fletcher, K. E.

doi:10.1016/0167-8809(88)90069-2

Cited by 334 publications

(154 citation statements)

References 24 publications

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“…Vermicompost has been demonstrated to be a valuable soil amendment that offers slow, but a balanced nutritional release pattern to plants, providing nutrients such as available N, K, Ca, Mg and P that can be taken up readily by plants (Edwards 1998;Edwards and Fletcher 1988). Plant growth parameters like plant length and dry weight; root length and dry weight; number of leaves, area and dry weight were significantly higher in plots amended with different doses of vermicompost.…”

Section: Plant Growth Parametersmentioning

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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Section: Plant Growth Parametersmentioning

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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“…Já a bio-oxidação e estabilização da MO, resultante da ação combinada de minhocas e da microflora que vive em seu trato digestivo, é definida como vermicompostagem (EDWARDS & FLETCHER, 1988;AQUINO et al, 1992). Embora os microrganismos sejam responsáveis pela degradação bioquímica da MO, minhocas influenciam física e bioquimicamente o processo (NADDAFI et al, 2004).…”

Section: Introductionunclassified

“…São amplamente utilizadas na vermicompostagem porque, além de se alimentarem de resíduos orgânicos, têm elevada capacidade reprodutiva e apresentam crescimento rápido (AQUINO & NOGUEIRA, 2001;PEREIRA et al, 2005). Nos processos de vermicompostagem é importante preocupar-se com a qualidade e a quantidade do material em relação ao número de minhocas (EDWARDS, 1988;REINECKE & VILJEN, 1990). A qualidade e a quantidade dos alimentos disponibilizados nos resíduos influenciam no tamanho e na velocidade de crescimento da minhoca e na produção de coprólitos (SHARMA et al, 2005;DORES-SILVA et al, 2013b).…”

Section: Introductionunclassified

Compostagem versus vermicompostagem: comparação das técnicas utilizando resíduos vegetais, esterco bovino e serragem

Cotta

Carvalho

Brum

et al. 2015

Eng. Sanit. Ambient.

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RESUMONeste trabalho, o enfoque foi a integração dos processos de compostagem e vermicompostagem para otimizar a reciclagem de resíduos sólidos.Cada tratamento recebeu um volume total de 40 cm 3 de resíduos.Os experimentos foram realizados em duas etapas: a primeira constituiu-se na pré-compostagem de resíduos sólidos vegetais (RV), com adição de esterco ou serragem de madeira. A irrigação e o revestimento das leiras nessa etapa foram realizados depois de 7, 14, 21 e 28 dias do início, e a temperatura foi monitorada. Na segunda etapa foram testados os tratamentos obtidos da primeira etapa com e sem minhocas.Os experimentos foram colocados em caixas de compensado de 60 cm 3 de dimensão, e os tratamentos sem minhocas foram dispostos em leiras e revolvidos a cada 7 dias. Nos tratamentos com minhocas foram adicionadas de 200 a 400 minhocas adultas da espécie Eisenia foetida. O processo foi acompanhado por meio de análises de C/N, variação de temperatura, grau de umidade, pH, matéria orgânica (MO) total, carbono total, teor de ácidos húmicos, nitrogênio total, fósforo e potássio. Na primeira etapa do processo, que constitui a termoestabilização dos resíduos nos diferentes tratamentos, a temperatura máxima atingida foi de 35, 53 e 51°C no 14° dia, respectivamente nos tratamentos RV, resíduos vegetais+serragem de madeira (RVM) e resíduos vegetais+esterco (RVE). Na segunda etapa, após 56 dias, a massa em degradação atingiu a temperatura ambiente, sendo, então, deixada para maturar por 98 dias. O pH final ficou na faixa de 6,74 a 8,90. A relação C/N inicial dos tratamentos RVE e RVM foi 34/1 e 184/1, e chegou a 17/1 e 34/1 após 98 dias utilizando a vermicompostagem. ABSTRACTIn this work, the focus was for the integration of composting and vermicomposting processes to optimize the recycling of solid wastes. Each treatment received a total volume of 40 cm 3 of waste.The experiments were conducted in two stages: the first consisted in pre-composting solid waste vegetables with addition of manure or sawdust. The irrigation and coating of windrows at this stage were conducted after 7, 14, 21 and 28 days from the beginning, and the temperature was monitored. In the second stage, the treatments obtained from the first stage were tested with and without earthworms.The experiments were placed in wooden boxes of 60 cm³ in size, and the treatments without earthworms were placed in windrows and scrambled every 7 days. In the treatments with earthworms were added 200-400 adult worms, Eisenia foetida. During the process the C/N ratio, temperature variation, moisture content, pH, total organic matter, total carbon, humic acid content, total nitrogen, phosphorus and potassium were evaluated. In the first stage of the process, which is the thermal stabilization of residues in the different treatments, the maximum temperature reached 35, 53 and 51°C on the 14 th day, respectively in RV, RVM e RVE treatments. In the second stage, after 56 days, the ambient temperature was reached; the organic wastes were then laid to reach full maturity f...

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“…Ample evidence for changes in the microbial community of the worm gut and habitat was also found for terrestrial oligochaete [21][22][23][24]. These microbial changes are probably not only due to the worms' removal or consumption of bacteria and the excretion of degradation products, but also due to the type of substrate the worms consume [25].…”

Section: Introductionmentioning

confidence: 90%

Elucidating the microbial community associated with the protein preference of sludge-degrading worms

Valk

Chen

Khadem

et al. 2017

Environmental Technology

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Interactions between earthworms and microorganisms in organic-matter breakdown

Cited by 334 publications

References 24 publications

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

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

Compostagem versus vermicompostagem: comparação das técnicas utilizando resíduos vegetais, esterco bovino e serragem

Elucidating the microbial community associated with the protein preference of sludge-degrading worms

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