Biochar in substrate composition for production of teak seedlings

Rezende, F. A. de; Santos, Victor Alexandre Hardt Ferreira dos; Maia, C. M. B. de F.; Morales, Marina Moura

doi:10.1590/s0100-204x2016000900043

Cited by 18 publications

(18 citation statements)

References 38 publications

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“…Under the full fertilizer regime, we found 75% increment in the quality index of the pine seedlings when grown with 20% hydrochar powder (v/v) in comparison with untreated seedlings. This is corroborated by Rezende et al [51] and Aung et al [49], who also found that biochar treatment significantly increased the quality index in Tectona grandis, Quercus serrata and Prunus sargentii. These researchers explained the observed increase in QID with improved water retention in growing substrates amended with biochar in a containerized production system.…”

Section: Quality Of the Pine Tree Seedlingssupporting

confidence: 65%

Hydrochar-Amended Substrates for Production of Containerized Pine Tree Seedlings under Different Fertilization Regimes

et al. 2019

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There is a growing body of research that recognizes the potentials of biochar application in agricultural production systems. However, little is known about the effects of biochar, especially hydrochar, on production of containerized seedlings under nursery conditions. This study aimed to test the effects of hydrochar application on growth, quality, nutrient and heavy metal contents, and mycorrhizal association of containerized pine seedlings. The hydrochar used in this study was produced through hydrothermal carbonization of paper mill biosludge at 200 °C. Two forms of hydrochar (powder and pellet) were mixed with peat at ratios of 10% and 20% (v/v) under three levels of applied commercial fertilizer (nil, half and full rates). Application of hydrochar had positive or neutral effects on shoot biomass and stem diameter compared with control seedlings (without hydrochar) under tested fertilizer levels. Analysis of the natural logarithmic response ratios (LnRR) of quality index and nutrient and heavy metal uptake revealed that application of 20% (v/v) hydrochar powder or pellet with 50% fertilizer resulted in same quality pine seedlings with similar heavy metal (Cu, Ni, Pb, Zn and Cr) and nutrient (P, K, Ca and Mg) contents as untreated seedlings supplied with 100% fertilizer. Colonization percentage by ectomycorrhizae significantly increased when either forms of hydrochar were applied at a rate of 20% under unfertilized condition. The results of this study implied that application of proper rates of hydrochar from biosludge with adjusted levels of liquid fertilizer may reduce fertilizer requirements in pine nurseries.

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Section: Quality Of the Pine Tree Seedlingssupporting

confidence: 65%

Hydrochar-Amended Substrates for Production of Containerized Pine Tree Seedlings under Different Fertilization Regimes

et al. 2019

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“…All biochar treatments increased seedling quality index which is one of the comprehensive indices to evaluate seedling quality (Figure 4). Achieving better seedling quality might be due to the improved water retention in nursery substrates amended with biochar in a containerized production system (Steiner et al 2007;Graber et al 2010;Altland and Krause 2012;Rezende et al 2016).…”

Section: Discussionmentioning

confidence: 99%

Biochar effects on the seedling quality ofQuercus serrataandPrunus sargentiiin a containerized production system

Aung

Han

Youn

et al. 2018

Forest Science and Technology

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Biochars are used to improve soil quality and crop productivity as well as to increase carbon sequestration in soil. However, it is important to identify the characteristics of biochar prior to its application because of the positive and negative effects on soil and crop productivity. The purpose of this study was to investigate the effects of charcoals on the growth and seedling quality of Quercus serrata and Prunus sargentii in a containerized seedling production system. Two of the charcoals used in our research were from oak tree; one produced at 1200 C and the other at 700 $ 800 C, and a bamboo charcoal produced at about 800 C. Three charcoals were mixed with artificial soil (peat moss, perlite, and vermiculite with a ratio of 1:1:1 (v/v/v)), and applied commercial fertilizer at two concentrations; 0.5 and 1.0 g L À1. Growth parameters, such as height, root collar diameter, and dry weight, were decreased in charcoal treatments compared to control. However, charcoal treatments significantly increased the quality index of seedlings by 8.3% in Q. serrata and by 19.9% in P. sargentii. Our results suggested that charcoal can be applied to improve seedling quality in the containerized Q. serrata and P. sargentii seedling production system.

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“…Rezende et al (2016) avaliaram a adição de 2 tipos de biochar em substrato para produção de mudas de teca (Tectona grandis) e definiram que 25% de biochar ativado na composição do substrato foi suficiente para aumentar o crescimento das mudas. Porém, no presente estudo, a combinação superfosfato triplo + biochar + cama-de-aviário não resultou em ganho de produção de MSPA das mudas submetidas a essa fórmula.…”

Section: Figura 2 Produção De Massa Seca Radicular (Msr) De Eucaliptunclassified

Eficiência De Fertilizantes Organominerais Fosfatados Em Mudas De Eucalipto

Magalhães

Morales

Rezende

et al. 2017

RSA

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Resumo -O uso de fertilizantes com eficiência aumentada tem crescido nos últimos anos, e o setor de produção de mudas florestais pode ser um dos beneficiados por essas tecnologias. Este estudo teve o objetivo de avaliar a eficiência de fertilizantes organominerais fosfatados sobre o desenvolvimento inicial de mudas de eucalipto. O experimento foi realizado em viveiro florestal localizado no município de Sinop(MT), em tubetes de 50 cm³. Foram avaliados três fertilizantes organominerais fosfatados, em um delineamento em blocos casualizados, formulados a partir da mistura e granulação, em diferentes proporções, de superfosfato triplo, fosfato natural reativo de Bayovar, conteúdo ruminal de bovinos de corte, biochar e cama-de-aviário. Essas fontes foram granuladas e aplicadas em um substrato comercial, em quatro níveis de fósforo (1,4; 2,5; 3,6 e 4,7 mg planta -1 ) mais um tratamento referência. As parcelas experimentais foram compostas por 16 mudas do clone de eucalipto (Urograndis -I144), com quatro repetições. Aos 70 dias foi determinada a massa seca da parte aérea (MSPA), massa seca de raízes (MSR), teor de fósforo na parte aérea e o índice de eficiência agronômica. A produção de MSPA e MSR foi superior nas mudas com aplicação de fertilizante organomineral granulado com fosfato natural reativo de Bayovar e conteúdo ruminal. Esse fertilizante apresentou eficiência similar ao tratamento referência, podendo ser uma alternativa para a utilização na produção de mudas de eucalipto. O fertilizante organomineral granulado com superfosfato triplo, biochar e cama-deaviário não foi eficiente para o desenvolvimento inicial de mudas de eucalipto. Palavras-chave: conteúdo ruminal, fosfato de Bayovar, biochar.Abstract -The use of fertilizers more efficient has grown in the last years, and the seedlings production sector can be one of those benefited by these technologies. The objective of this study was to evaluate the efficiency of phosphate organomineral fertilizers on eucalyptus seedlings development. The experiment was set up in a nursery located in Sinop, state of Mato Grosso, Brazil, in 50 cm³ tubes. Three phosphate organomineral fertilizers were evaluated in a randomized block design, formulated from the mixture and granulation, in different proportions, of triple superphosphate, reactive natural phosphate from Bayovar, ruminal content of beef cattle, biochar and poultry. These sources were granulated and applied in a commercial substrate in four phosphorus levels (1.4, 2.5, 3.6 and 4.7 mg plant -1 ) plus a reference treatment. The experimental plots were composed of 16 seedlings of eucalyptus clone (Urograndis -I144), with four replications. At 70 days the shoot and root dry mass, phosphorus content in shoot and the agronomic index were determined. Root and shoot production was higher in the seedling fertilized with Bayovar reactive natural phosphate granulated with ruminal content. This fertilizer could be use in seedling production. The organomineral fertilizer granulated with triple superphosphate, biochar and poult...

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Biochar in substrate composition for production of teak seedlings

Cited by 18 publications

References 38 publications

Hydrochar-Amended Substrates for Production of Containerized Pine Tree Seedlings under Different Fertilization Regimes

Hydrochar-Amended Substrates for Production of Containerized Pine Tree Seedlings under Different Fertilization Regimes

Biochar effects on the seedling quality ofQuercus serrataandPrunus sargentiiin a containerized production system

Eficiência De Fertilizantes Organominerais Fosfatados Em Mudas De Eucalipto

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