An experimental study of vermi-biowaste composting for agricultural soil improvement

Padmavathiamma, Prabha K.; Li, Loretta Y.; Kumari, Usha R.

doi:10.1016/j.biortech.2007.04.028

Cited by 172 publications

(102 citation statements)

References 23 publications

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“…The DGT results suggested very high P availability in the vermicomposted product. Previous research has also indicated that vermicomposting makes nutrients, particularly P, more available (Gosh et al 1999, Padmavathiamma et al 2008. There is currently a plan to market the digestate-based product as a P fertiliser for stockless organic farming.…”

Section: (22) Discussionmentioning

confidence: 99%

Phosphorus availability in residues as fertilizers in organic agriculture

Føreid

2017

AFSci

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Phosphorus (P) should be recycled from organic wastes as much as possible, and input is needed in stockless organic agriculture. Seven organic residues were assessed and compared them to mineral P fertilizer and rock phosphate as fertilizer for barley. P availability in the mixtures and residual P availability were also assessed by diffusive gradients in thin films (DGT). The best availability was found in digested liquid manure followed by wood ash, fish sludge, composted solid manure and composted food waste. Meat and bone meal, the commercially available product Ladybug plus and rock phosphate had low P availability at the same level as no P. Only wood ash had significant P available for the next crop. The pH level of the soil did not affect P availability for any of the P sources. DGT predicted P availability moderately well, as it measures P supply over a short period without any biological factors.

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Section: (22) Discussionmentioning

confidence: 99%

Phosphorus availability in residues as fertilizers in organic agriculture

Føreid

2017

AFSci

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“…Vermicompost is known to provide a slow, balanced nutritional release pattern to plants, particularly in terms of release of plant-available N, soluble K, exchangeable Ca, Mg and P (Edwards and Fletcher 1988) which is subsequently used by plants efficiently. Vermicompost application generally improves the soil environment, particularly soil aeration, encouraging the proliferation of roots, which in turn draw more water and nutrient from distant areas and help to introduce and sustain beneficial micro-organisms into the rhizosphere (Padmavathiamma et al 2008) in sufficient numbers for a longer period.…”

Section: Yield 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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“…The combination of both treatments reduced the overall time required for composting to 20 days and accelerated the degradation process, thereby producing a nutrient-enriched compost product [20]. The study conducted by Padmavathiamma et al [24] reported that the enrichment generally had a significant effect on the nutrient contents, especially for N, P, K, Mg, and Mn. Eudrilus compost, when treated with Azospirillum and P-solubilising organisms, gave an N-content of 2.08% which was significantly higher than the N-content of uninoculated Eudrilus compost (1.8%).…”

Section: Enrichment Of Vermicompost Withmentioning

confidence: 99%

Microbial Enrichment of Vermicompost

Rajasekar

Daniel

2012

ISRN Soil Science

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The present study has been conducted to explore the possibility of enrichment of vermicompost with microbial inoculants (i.e., biofertilizer organisms), Azospirillum brasilense and Rhizobium leguminosarum, optimization of inoculum level, and time of inoculation during vermicomposting. The survival rate of each microbial inoculant, total microbial population in vermicompost, and their correlation with the microbial inoculants during the storage period (180 days) were assessed. The change in population of A. brasilense and R. leguminosarum in vermicompost (at 30, 35, and 40 mL/175 g substrates) with reference to storage period showed highly significant negative correlation (P < 0.001). The total microbial population in A. brasilense and R. leguminosarum inoculated vermicompost was high during initial phases of storage and then total microbial population declined towards the end. The inoculum level of A. brasilense and R. leguminosarum at 35 mL per 175 g vermibed substrate is sufficient to maintain 1 × 10 7 viable cells up to 160 days after ther harvesting of vermicompost. The inoculum of these two biofertilizer organisms into vermibed on the 30th day showed increased survival rate and, hence, the optimized inoculation of 35 mL of inoculum per 175 g substrate on the 30th day of vermicomposting is helpful for the maintenance of sufficient viable population for more than five months in the enriched vermicompost.

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An experimental study of vermi-biowaste composting for agricultural soil improvement

Cited by 172 publications

References 23 publications

Phosphorus availability in residues as fertilizers in organic agriculture

Phosphorus availability in residues as fertilizers in organic agriculture

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

Microbial Enrichment of Vermicompost

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