Seaweeds as bioresources for vermicompost production using the earthworm, Perionyx excavatus (Perrier)

Ananthavalli, Ramachandran; Ramadas, Venkatasamy; Paul, James Arockia John; Selvi, B. Karunai; Karmegam, Natchimuthu

doi:10.1016/j.biortech.2018.12.091

Cited by 56 publications

(16 citation statements)

References 31 publications

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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: 67%

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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Section: Resultsmentioning

confidence: 67%

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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“…Vermicomposting experiments depend on the production of earthworms, which is a significant and integrated aspect of the vermicomposting process (Ananthavalli et al, 2019). There was a significant interaction (p<0.001) between weed species and the ratio of weed and cow dung on the live biomass of earthworms.…”

Section: Resultsmentioning

confidence: 99%

Bioconversion of perennial weeds of <em>Chromolaena odorata</em> (L.) R.M. King & H. Rob., Sida rhombifolia L., and Lantana camara L. by vermicomposting process

Wijeysingha

Fernando

2021

AGRIEAST: J. Agri. Sci.

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Bioconversion of weeds through vermicomposting is getting momentum in sustainable organic farming, whilst mitigating negative impacts on the environment. The present study was conducted to find out the effect of three perennial weed species and the different ratio between weed to cow dung on the efficacy of Eisenia fetida and the physicochemical properties of vermicompost produced. The experiment was set up as a two-factor factorial completely randomized design with three replicates and 100% of cow dung was maintained as the control experiment. Factor one of the experiment was the weed species (Three weed species; Chromolaena odorata, Sida rhombifolia and Lantana camara) and factor two was the different ratio between weed and cow dung when preparing substrate by weight (four ratios; 100% weed, 75% weed + 25% cow dung, 50% weed + 50% cow dung, 25% weed + 75% cow dung). The results revealed that the interaction effect between weed species and the ratio of weed to cow dung on live biomass of earthworms (P<0.001), weight (P<0.001) and total dissolved solids (P<0.05) of the vermicompost was significantly different. The salinity and electrical conductivity of the vermicompost was significantly different among the main factors of weed species (P<0.01) and the ratio of weed to cow dung (P<0.01). The pH value of the vermicompost was significantly different only among the weed species (P<0.01). A significant difference was found between treatment combinations for the colour (P<0.01) of the vermicompost. However, the odour of the vermicompost harvested in different treatment combinations was not significantly different. The treatment combination of 50% Lantana camara and 50% cow dung performed better than the control for the growth and reproduction of earthworms. However, none of the treatment combinations performed better than the control for the weight of vermicompost. Furthermore, the pH of the vermicompost was not significantly different from the control. The treatment combination of 25% Chromolaena odorata and 75% cow dung was significantly different from the control on electrical conductivity, total dissolved solids and salinity of the vermicompost. According to the results of the experiment, the treatment combination of 50% cow dung and 50% Lantana camara L. by weight showed the highest efficacy on Eisenia fetida. Therefore, it can be concluded that the bioconversion of perennial weeds of Chromolaena odorata, Sida rhombifolia and Lantana camara were possible and 50% cow dung and 50% Lantana camara L. by weight produced the best quality vermicompost. Furthermore, it can be suggested that the perennial weed species of Lantana camara could be used to produce vermicompost effectively than the other weed species used in the study. Bioconversion of weed substrate without mixing of cow dung was not successful. Better performances of Eisenia fetida can expect by feeding partially degraded weed substrate.

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“…Figure 1 showed no significant difference between treatments, alongside a tendency for the total spore to increase athigher concentrations of seaweed extract. A study conducted by [34] showed higher total microbial content in the biostructure (vermicompost) of earthworm (Perionyx excavatus) made from a mixture of manure and Sargassum sp., compared to those without seaweed. Therefore, this treatment potentially increases the population of beneficial microbes, especially for AMF spores in soil biostructures created by earthworms.…”

Section: Growth and Yield Components Of The Upland Ricementioning

confidence: 99%

The Effect of The Application of Soil Biostructures Created Using Biochar and Seaweed Extract on Upland Rice Growth

Kilowasid

Samiri

Arma

et al. 2022

IOP Conf. Ser.: Earth Environ. Sci.

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Earthworms play an important role in mixing soil particles with biochar grains, as well as creating biostructures, and the application of seaweed extract to soil affects the microbes within, as well as plant growth. This study, therefore, aims to investigate the effect of mixing soil, teak leaf biochar, as well as seaweed extract on the arbuscularmycorrhizal fungal (AMF) spores within the biostructures formed, and analyze the effect of applying these biostructures to planting media soil on the growth and yield of local upland rice. Before the experiment, extract stock from Sargassum sp. was diluted with water into five separate concentration levels, 0%, 20%, 40%, 60%, and 80%. Subsequently, 20 individual earthworms were released on the soil surface previously mixed with biochar and seaweed extract in a reactor. The planting media used in this study was soil from the cogongrass area with grain sizes below 4 mm, and about 10% (w/w) of the biostructures formed were added to the media in a polybag, then the mixture was transplanted with upland rice seedlings of local variety Sorawolia.According to the results, the treatment containing had the highest total AMF spores. Furthermore, the addition of biostructures significantly affected plant height, leaf number as well as area, and the number of tillers at 42, 42 to 70, and 70 days after application, respectively. Meanwhile, the highest plant dry weight and panicle length were obtained from the treatments containing 80% and 60% extract stock, respectively. However, there was no significant difference in the spikelet number and percentage of filled spikelets between the biostructures. Therefore, the application of both teak leaf biochar and extract of Sargassum sp. was concluded to be able to improve the performance of earthworms (Pheretima sp.) in creating soil biostructures containing AMF spores, for local upland rice development in conditions of poor soil fertility. However, future studies are required to investigate this application’s potential as a source of inoculum for AMF spores or other beneficial microbes, for application at the smallholder farm level.

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Seaweeds as bioresources for vermicompost production using the earthworm, Perionyx excavatus (Perrier)

Cited by 56 publications

References 31 publications

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

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

Bioconversion of perennial weeds of <em>Chromolaena odorata</em> (L.) R.M. King & H. Rob., Sida rhombifolia L., and Lantana camara L. by vermicomposting process

The Effect of The Application of Soil Biostructures Created Using Biochar and Seaweed Extract on Upland Rice Growth

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