Quantifying the relative role of phytase and phosphatase enzymes in phosphorus mineralization during vermicomposting of fibrous tea factory waste

Ghosh, Swayambhu; Goswami, Anup Jyoti; Ghosh, Goutam; Pramanik, Prabhat

doi:10.1016/j.ecoleng.2018.03.001

Cited by 46 publications

(10 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The increase in TP may be attributed to the presence of earthworm gut phosphatase, and phosphorous solubilizing microorganisms in the worm casts that enhance the release of phosphorus in various forms [59]. Ghosh et al [60] reported the presence of phytase enzymes in vermicompost that also enhances mineralization of phosphorus as time progresses. In addition, mineralization and mobilization of organic matter by the combined effect of microorganisms and fecal phosphate activity of earthworms probably increases TP content in the final vermicompost [12].…”

Section: Physio-chemical Characteristicsmentioning

confidence: 99%

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

et al. 2019

View full text Add to dashboard Cite

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.

show abstract

Section: Physio-chemical Characteristicsmentioning

confidence: 99%

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

et al. 2019

View full text Add to dashboard Cite

show abstract

“…Higher protease and acid phosphatase activity in vermicompost treated soils might be responsible for higher nitrogen and phosphorus content in soil extracts ( Gosh et al, 2018 ), and different types of hormones and macronutrients such as cytokines, auxin, different amino acids, and vitamins, enzyme cocktails of proteases, amylases, urease and phosphatase possessed by and contributed to soil wellbeing. Some other secretions and many useful microbes such as saprophytic bacteria, fungi, actinomycetes including nitrogen-fixing bacteria such as Agrobacterium spp., Azotobacter spp., Rhizobium spp., phosphate solubilizes were available in the vermiwash ( Das et al, 2014 ; Tripathi et al, 2005 ) ( Table 1 ).…”

Section: Methodsmentioning

confidence: 99%

Vermiwash: An agent of disease and pest control in soil, a review

Gudeta

Julka

Kumar

et al. 2021

Heliyon

View full text Add to dashboard Cite

Vermiwash is a liquid extract produced from vermicompost in a medium where earthworms are richly populated. It comprises a massive decomposer bacteria count, mucus, vitamins, different bioavailable minerals, hormones, enzymes, different antimicrobial peptides, etc. This paper aimed to assess how these natural products in vermiwash suppressed the pathogen and pests. Thus, we have reviewed the importance of vermiwash/vermicompost in disease control, the mechanism of disease suppression, the components of vermiwash applied in disease suppression, and pest control to use the scientific facts in agriculture to enhance the productivity of the crops. The bioactive macromolecules from the skin secretion of earthworm, coelomic fluid, and mucus directly able to defend pathogenic soil microbes against the worm and thereby freed the environment from the disease. Earthworms establish symbiotic relations with microbes, produce an essential product that supports the growth of plants, and suppress plant's root disease. It is recomended that earthworm should be inoculated in an agricultural field, or prepare and apply its vermiwash/vermicompost as a spray or as additive bio-fertilizer in the soil to enhance the productivities of the crops.

show abstract

“…Therefore, CAPs prolong the decomposition of the feedstock although earthworms move away seeking fresh and noningested organic waste or they are intentionally removed from the vermicomposting system (maturation phase). Changes in the enzymatic profile, microbial composition, and nutrient concentration still occur in the maturation phase (earthworm free) of vermicomposting. , …”

Section: Potential Of Vermitechnology In Plastic Biodegradationmentioning

confidence: 99%

Potential Use of Earthworms to Enhance Decaying of Biodegradable Plastics

Sánchez-Hernández

Capowiez

2020

ACS Sustainable Chem. Eng.

View full text Add to dashboard Cite

Biosolid application, wastewater irrigation, and plastic mulching technologies are major sources of plastic pollution in agroecosystems. Microplastics may interact with soil physicochemical properties and organisms and negatively affect plant growth. To alleviate environmental plastic pollution, synthetic and biobased biodegradable polymers are replacing nonbiodegradable polymers, but their biodegradation rate in the field is frequently lower than that estimated from standardized biodegradation testing. Plastic polymer biodegradation is a multistep process that involves plastic deterioration, microbial colonization, production of polymer-degrading exoenzymes, and mineralization. However, these physicochemical and biological processes are not always efficient because of unfavorable environmental conditions (e.g., temperature, soil moisture). We propose to use earthworms to increase the biodegradable polymer biodegradation rate by creating optimal habitats for microbial proliferation. Earthworm-induced processes that lead to soil alteration (bioturbation) and solid organic wastes decomposition (vermicomposting) are described to understand how earthworms may favor biodegradable plastic mineralization. Therefore, we suggest two practical sustainable bioengineering strategies: (1) enhancing bioturbation by inoculating agricultural soils with soil-dwelling earthworms, which is viable for horticulture where using biodegradable mulching films increases plastic debris in the soil and (2) vermicomposting with blended biodegradable plastic debris and solid organic wastes, which is complementary to industrial or home composting of single-use biodegradable plastics.

show abstract

Quantifying the relative role of phytase and phosphatase enzymes in phosphorus mineralization during vermicomposting of fibrous tea factory waste

Cited by 46 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

Vermiwash: An agent of disease and pest control in soil, a review

Potential Use of Earthworms to Enhance Decaying of Biodegradable Plastics

Contact Info

Product

Resources

About