Biochar De Serragem De Eucalipto Como Condicionador De Substratos Para Produção De Mudas De Alface

Silva, Luis Fernando Vieira da; Melo, Edmar Isaías de; Gonçalves, Pablo Arthur Silva

doi:10.36725/agries.v5i0.1614

Cited by 4 publications

(5 citation statements)

References 17 publications

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“…These results are associated with reduced leaf area (Figure 3A) and height (Figure 3B). Similar to the growth of seedlings, an increase in the percentage of biochar in the substrate had the effect of reducing the dry mass of shoots (Figure 4A) and roots (Figure 4B), which is consistent with the findings of Silva et al (2019), who verified a reduction in the growth of lettuce plants when the biochar from eucalyptus waste was used to replace more than 5% of the commercial substrate used for seedling production. Contrastingly, however, Rezende et al (2016) recommend replacing up to 25% of a commercial substrate with biochar for the production of Tectona grandis seedlings.…”

Section: Resultssupporting

confidence: 88%

“…Given its multiple beneficial properties, biochar provides an excellent substrate for seedling production, being characterized by a favorable density, porosity, water-retention capacity, and nutrient content (Rezende et al, 2016;Silva et al, 2019). It is also resistant to decomposition (Kaudal et al, 2016), free of pests, weeds, and pathogens (Fornes et al, 2015;Xu et al, 2016), and provides a favorable environment for the development of mycorrhizal fungi (Tender et al, 2016;Zheng et al, 2016), and nitrogen-fixing bacteria (Vaccari et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

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Biochar as an alternative substrate for the production of sugarcane seedlings

Mota

Damião

Torres

et al. 2021

Rev. bras. eng. agríc. ambient.

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Biochar, which has emerged as an important form of the transformation and final disposal of biomass, can be used directly in soil or in seedling nurseries. In this study, the use of biochar of different particle sizes and percentages was evaluated in replacement to a conventional substrate used in the production of sugarcane seedlings. To this end, an experiment was carried out based on a completely randomized design, with a 5 × 4 factorial scheme, consisting of five different percentages of biochar (with 0, 25, 50, 75, and 100% v/v substitution of the conventional substrate) and four particle sizes (<1, 2, 4, and 9 mm), with nine repetitions. As seedling growth variables, the average sprouting time, sprouting speed index, plant height, leaf number, leaf length, and width + 2, as well as the dry mass of the aerial parts and roots were evaluated. Irrespective of the percentage of commercial substrate replaced with biochar, sprouting time was found to be shorter when 6-mm-diameter biochar particles were used. With respect to the sprouting speed index, it was found that regardless of particle size, the highest value occurred when biochar was used to replace 42% of the commercial substrate. The substitution of the commercial substrate with biochar had the effect of reducing the growth of sugarcane seedlings.

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Section: Resultssupporting

confidence: 88%

Section: Introductionmentioning

confidence: 99%

Biochar as an alternative substrate for the production of sugarcane seedlings

Mota

Damião

Torres

et al. 2021

Rev. bras. eng. agríc. ambient.

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“…For lettuce seeds, the mean GSI was 4.391, for sorghum seeds the mean was 5.228. The germination and GSI results for lettuce seeds were similar to those observed by Silva et al (2019) in which there was no significant difference for these parameters, suggesting that the biochar used did not generate an initial imbalance in the retention of water and air, and, consequently, did not contribute to greater moisture retention in the porous structures of the biochar.…”

Section: Resultssupporting

confidence: 79%

“…According to Jabborova et al (2021), the addition of biochar provided an increase in root length for the basil crop, which, in addition to effects on root length, also increased root surface area, volume and root diameter. However, additions above 5% of eucalyptus sawdust biochar in the substrate led to a drop in the root length of lettuce seedlings (Silva et al, 2019).…”

Section: Resultsmentioning

confidence: 92%

Potential of coffee straw biochal as a substrate conditioner in seed lettuce and sorghum germination and vigority

Alixandre,

Lima,

Almeida

et al. 2023

Braz. J. Biol.

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The use of residues from coffee production to obtain biochar is a sustainable approach, which aims to minimize the environmental impact of these materials. In this study, the effect of adding coffee straw biochar on the physiological quality of lettuce and sorghum seeds was investigated. Thus, the objective of this work was to study the effect of adding different concentrations of coffee biochar in the substrate composition on the physiological quality of lettuce (Lactuca sativa) and sorghum (Sorghum bicolor) seeds. The experimental design used was completely randomized, with five concentrations of biochar (0; 7.5; 15; 30 and 60%), conducted with four replications of 25 seeds. The use of biochar in the concentrations studied does not provide an increase in the average germination percentage and vigor of lettuce and sorghum seeds. The increase in the concentration of biochar caused less seed vigor, suggesting a toxic effect. For seed germination, there was no significant difference between lettuce and sorghum species, regardless of treatment. For the germination speed index, sorghum seeds have higher means, except for the treatment with the addition of 15% coffee straw biochar. Lettuce seeds have higher shoot length averages, except for treatment with 100% commercial substrate. The sorghum seeds have higher mean root length and dry mass than lettuce, regardless of the treatment.

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“…A atividade microbiana, inclusive dos FMA pode ser influenciada por diversos fatores como propriedades do solo, clima, relevo, práticas de manejo, fertilização, rotação de culturas, plantio direto (Sale et al 2015;Soudzilovskaia et al 2015), e aplicação de substratos que favorecem o desenvolvimento da comunidade microbiana no solo, dentre eles o biochar (House et al 2020). Os efeitos do biochar em simbiontes associados a plantas, por exemplo, FMA são de grande importância econômica e ambiental, pois geralmente essas associações são afetadas positivamente pelo biochar (Liu et al 2020;Yang et al 2020), por permitir aumentar o enraizamento durante a germinação, e promover a melhoria na biomassa e comprimento radicular (Silva et al 2019).…”

Section: Introductionunclassified

Efeito do biocarvão de serragem de eucalipto sobre a simbiose de fungos micorrízicos arbusculares nativos

Mendonça,

Naves,

Da Silva

et al. 2023

Braz. J. Anim. Environ. Res.

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O biochar material produzido a partir da pirólise de materiais lignocelulósicos, pode contribuir para aumento da fertilidade, melhoria da disponibilidade de nutrientes e favorecer a atividade microbiana do solo, em específico a influenciar a simbiose micorrízica arbuscular. O objetivo deste trabalho foi avaliar a influência de doses de biochar produzido a partir da serragem de eucalipto, na simbiose micorrízica arbuscular de fungos nativos presentes no solo do bioma cerrado. O delineamento experimental aplicado foi inteiramente casualizado, com quatro tratamentos e cinco repetições, correspondendo a doses de biochar (0, 5, 10 e 15 % m/m). Utilizou-se a gramínea (Panicum miliaceum L.) em LATOSSOLO VERMELHO distrófico e após trinta dias foram avaliados a densidade de esporos (DE), porcentagem de colonização radicular (Col), pH, condutividade elétrica (CE) e respiração basal do solo (RBS). O biochar proporcionou aumento nos valores de pH e DE em função das doses de biochar, apresentando diferença significativa pelo teste de tukey (p<0.05) em relação ao tratamento sem adição de biochar, o inverso ocorreu para RBS. Já para as variáveis CE e Col, ocorreu o aumento e redução em função das doses, respectivamente. Os resultados permitiram verificar que o biochar da serragem de eucalipto favoreceu a simbiose FMA nativos, além de garantir a redução da acidez e não provocar o aumento da condutividade elétrica do solo.

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Biochar De Serragem De Eucalipto Como Condicionador De Substratos Para Produção De Mudas De Alface

Cited by 4 publications

References 17 publications

Biochar as an alternative substrate for the production of sugarcane seedlings

Biochar as an alternative substrate for the production of sugarcane seedlings

Potential of coffee straw biochal as a substrate conditioner in seed lettuce and sorghum germination and vigority

Efeito do biocarvão de serragem de eucalipto sobre a simbiose de fungos micorrízicos arbusculares nativos

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