Feedstock Mixture Composition as Key Factor for C/P Ratio and Phosphorus Availability in Composts: Role of Biodegradation Potential, Biochar Amendment and Calcium Content

Vandecasteele, Bart; Willekens, Koen; Steel, Hanne; D’Hose, Tommy; Waes, Chris Van; Bert, Wim

doi:10.1007/s12649-016-9762-3

Cited by 36 publications

(25 citation statements)

References 45 publications

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“…They indicated that increasing TOC by biochar amendments addition in soils decrease bulk density significantly. The decrease in bulk density appears to have been the result of alteration of soil aggregate sizes (Vandecasteele et al, 2016). Asai et al (2009) indicated that biochar incorporation into soil changed the pore-size distribution.…”

Section: Resultsmentioning

confidence: 99%

Soil hydro-physical Environment as Influenced by Different Biochar Amendments

Das¹,

Ghosh²

2017

IJBSM

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Biochar acts as a soil conditioner, improving soil physical properties, nutrient use efficiency and thereby increasing plant growth. An experiment was conducted at ICAR-National Organic Farming Research Institute during the year 2016−17 in order to study the effect of different levels of biochar obtained from different biomass on selected soil hydro-physical properties. In this study, a sandy loam soil was amended with four different types of biochar (maize, Lantana camara, pine needle and black gram) at four different rates (0, 5.0, 7.5 and 10.0 t ha-1). The biochar were characterized for their physico-chemical properties. After biochar application selected soil hydro-physical properties were analyzed for bulk density, porosity, aggregate stability, mean weight diameter, hydraulic conductivity and water holding capacity. Maize biochar was showing best result for improving all the selected the soil physical properties compared to other type. With increasing rate of application of biochar soil physical properties also changed significantly. The results showed that bulk density decreased from 1.53 to 1.13 g cm-3 while porosity increased from 58.38 to 65.67. Aggregate stability and mean weight diameter increased from 4.13 and 2.51 to 8.29 and 2.83, respectively. But biochar amendment decreased the soil hydraulic conductivity from 0.41 to 0.16. Besides water holding capacity also increased from 11.37 to 19.8 g cm-3. Finally soil moisture content increased significantly from 19.1 to 25.7 for all the biochar. These results strongly suggest positive improvement of soil hydro-physical properties following addition of biochar amendment in sandy loam soil. Biochar, hydro-physical properties, bulk density, hydraulic conductivity

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Section: Resultsmentioning

confidence: 99%

Soil hydro-physical Environment as Influenced by Different Biochar Amendments

Das¹,

Ghosh²

2017

IJBSM

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“…In addition, the pH value seems to be a key element in determining the concentration of P in compost, but its measurement is complicated due to the interactions with other mineral compounds. Other studies also suggest that timing of biochar addition to the composting process affects the final concentration (Vandecasteele et al 2017). The lack of consistent data on P concentration in the compost after biochar addition deserves further research in order to better understand the mechanism involved.…”

Section: Recent Developments In Bcmmentioning

confidence: 99%

Biochar–Compost Mixtures as a Promising Solution to Organic Waste Management Within a Circular Holistic Approach

Varalta

Sorvari

2020

Organic Waste Composting Through Nexus Thinking

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In the common linear economy approach, organic waste treatment mainly generates energy, due to the existing demand and the goal of reducing the use of fossil fuel. Yet recent innovations and associated products are calling for an increasingly diverse use of organic waste within a circular holistic framework where the biochar and composting mixture appears to be the key to achieving a robust solution for sustainable development. Nonetheless, the inhomogeneity of organic waste and the synergies between biochar and composting require further investigation before broad-scale field application. In this chapter, we illustrate how governmental policies should be updated and revised to effectively support the development of new sustainable solutions, that should take into account social, economic and environmental implications, as well as their mutual interactions. As a consequence, robust tools and reliable procedures to evaluate sustainability will have to be established in this new ecological structure.

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“…Além disso, o biocarvão possui uma alta capacidade de retenção de cátions, o que pode causar um atraso significativo na absorção de P, porque a maior quantidade de cargas superficiais negativas gera forças de repulsão de ânions (JIANG et al, 2015). A matéria-prima utilizada para a produção do biocarvão também é um dos fatores que podem conferir uma menor capacidade de sorção de P ao biocarvão, pois determina, juntamente com a temperatura de pirólise, a formação de cargas de superficiais (VANDECASTEELE et al, 2017). Outro fator relacionado à menor sorção de P é a presença de íons coexistentes, que, por competição, reduzem a retenção de P (NGATIA et al, 2019).…”

Section: Análise Estatísticasunclassified

Biocarvão de açaí e composto comercial sobre a cinética e a biodisponibilidade de fósforo em estéril da mineração de ferro

Pinto¹,

Guedes²,

Ramos³

et al. 2020

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Feedstock Mixture Composition as Key Factor for C/P Ratio and Phosphorus Availability in Composts: Role of Biodegradation Potential, Biochar Amendment and Calcium Content

Cited by 36 publications

References 45 publications

Soil hydro-physical Environment as Influenced by Different Biochar Amendments

Soil hydro-physical Environment as Influenced by Different Biochar Amendments

Biochar–Compost Mixtures as a Promising Solution to Organic Waste Management Within a Circular Holistic Approach

Biocarvão de açaí e composto comercial sobre a cinética e a biodisponibilidade de fósforo em estéril da mineração de ferro

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