Biochar: Agronomic and environmental potential in Brazilian savannah soils

Petter, Fabiano André; Madari, B. E.

doi:10.1590/s1415-43662012000700009

Cited by 49 publications

(26 citation statements)

References 43 publications

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“…However, future tests are important to verify the causes of this result. Stem diameter and seedling height are widely used in the investigation of seedling development in nurseries, and biochar effects on these parameters can be beneficial (Kwapinski et al, 2010;Dharmakeerthi et al, 2012) or absent, depending on the evaluated species (Zanetti et al, 2003;Petter & Madari, 2012).…”

Section: Resultsmentioning

confidence: 99%

“…These alternative uses can transform valueless residues in an important by-product of the industrial process and incorporate additional income to the sector. Biochar production has a great potential, mainly as a soil conditioner (Van Zwieten et al, 2010;Petter & Madari, 2012), or as a component of seedling substrates (Lehmann & Rondon, 2006;Ogawa & Okimori, 2010;Dharmakeerthi et al, 2012;.…”

Section: Introductionmentioning

confidence: 99%

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Biochar in substrate composition for production of teak seedlings

Rezende

Santos

Maia

et al. 2016

Pesq. agropec. bras.

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-The objective of this work was to evaluate the development and quality of clonal seedlings of teak (Tectona grandis) grown in substrate with two types of biochar. The assay was carried out in a randomized complete block design, with ten treatments and four replicates: CS, commercial substrate, composed of pine bark and vermiculite at a ratio of 4:1; NS, nursery substrate composed of carbonized rice husk and coconut fiber at 1:1; and the remaining treatments were composed of the inclusions of biochar (BC) or activated biochar (BCA) in the CS, at the proportions of 25, 50, 75, and 100%. The development and quality parameters of seedlings were evaluated 90 days after striking the minicuttings in the substrates. BCA substrate additions at 25, 50, and 100% allowed for a development of height and stem diameter comparable to that of the NS. Biochar without the activation procedure does not improve quality parameters of seedlings, in comparison with the commercial substrate. The use of 25% activated biochar added to the commercial substrate is enough to improve seedling growth performance to the same level as that provided by the already validated NS.Index terms: Tectona grandis, agroindustrial waste, biochar activity, pyrolysis, seedling quality. Biochar na composição de substratos para a produção de mudas de tecaResumo -O objetivo deste trabalho foi avaliar o desenvolvimento e a qualidade de mudas clonais de teca (Tectona grandis) cultivadas em substrato com dois tipos de biochar. O ensaio foi realizado em delineamento de blocos ao acaso, com dez tratamentos e quatro repetições: SC, substrato comercial, composto de casca de pinus e vermiculita à proporção de 4:1; SV, substrato do viveiro, composto de casca de arroz carbonizada e fibra de coco a 1:1; e o restante dos tratamentos foi composto de inclusões de biochar (B) e biochar ativado (BA), nas proporções de 25, 50, 75 e 100% do SC. Os parâmetros de desenvolvimento e qualidade das mudas foram avaliados 90 dias após o plantio das estacas nos substratos. A adição de 25, 50 e 100% de BA possibilitou o desenvolvimento em altura e diâmetro do coleto comparável ao proporcionado pelo SV. O biochar sem o procedimento de ativação não melhora os parâmetros de qualidade das mudas, em comparação ao substrato comercial. A adição de biochar ativado na proporção de 25% já é suficiente para melhorar o crescimento das mudas para o mesmo nível proporcionado pelo já validado SV.Termos para indexação: Tectona grandis, resíduo agroindustrial, atividade do biochar, pirólise, qualidade de mudas.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Biochar in substrate composition for production of teak seedlings

Rezende

Santos

Maia

et al. 2016

Pesq. agropec. bras.

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“…It is usually added to the soil in order to improve its chemical, physical and biological properties (KOOKANA et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Growth and production of common bean fertilized with biochar

et al. 2017

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Production of biochar from organic wastes promises to be an interesting source of plant nutrients, thus reducing pressure on natural resources. To assess the effect of biochar prepared from wastes filtration materials on the growth and production of common bean (Phaseolus vulgaris L.), three simultaneous greenhouse experiments were conducted with three different biochar from organic wastes (rice husk, sawdust, and sorghum silage) using as filtration material for swine biofertilizer. In each experiment the treatments consisted of the addition of five different biochar concentrations (0%, 2.5%, 5%, 7.5%, and 10% v/v), arranged in a completely random design, with four repetitions. Application of biochar increased the root dry mass, shoot dry mass, grain dry mass, number of pods and number of grains. These results indicated that biochar contributed significantly to the growth and production of common bean plants.

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“…Neste contexto a conversão de biomassa para biocarvão, seguida pela sua aplicação no solo, aumenta o tempo de residência do carbono quando comparado à aplicação direta da biomassa orgânica (Machado, 2005;Sohi et al, 2010;Petter & Madari, 2012;Mayer et al, 2014).…”

Section: Introductionunclassified

Maximização do teor de carbono fixo em biocarvão aplicado ao sequestro de carbono

Róz

Ricardo

Nakashima

et al. 2015

Rev. bras. eng. agríc. ambient.

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<title>RESUMO</title><p>A emissão de dióxido de carbono é, atualmente, a principal causa do aquecimento global, devido ao efeito estufa. Ao redor do planeta pesquisadores têm-se esforçado na busca de soluções viáveis para o problema; com isto, o biocarvão está entre as mais recentes propostas de mitigação das mudanças climáticas em razão da sua simplicidade e eficiência. Desta forma, este trabalho teve, por objetivo, maximizar o teor de carbono fixo na produção de biocarvão. Para isso, analisaram-se sete tratamentos, temperaturas de pirólise: 200, 250, 300, 350, 400, 450 e 500 °C. A partir do rendimento gravimétrico de produção e do teor de carbono fixo calcularam-se os respectivos fatores de rendimento gravimétrico para cada tratamento, os quais indicam em qual temperatura se tem a maior quantidade de carbono fixo em função do biocarvão produzido. A pirólise com temperatura máxima de 300 °C indicou o maior fator de rendimento gravimétrico, atingindo 0,22672 C/biocarvão.</p>

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Biochar: Agronomic and environmental potential in Brazilian savannah soils

Cited by 49 publications

References 43 publications

Biochar in substrate composition for production of teak seedlings

Biochar in substrate composition for production of teak seedlings

Growth and production of common bean fertilized with biochar

Maximização do teor de carbono fixo em biocarvão aplicado ao sequestro de carbono

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