Produção de biomassa da gramínea vetiver (Chrysopogon zizanioides (L.) Roberty) em diferentes espaçamentos após 420 dias do plantio

Manoel, Damiany dos Santos; Pinto, Lilian Vilela Andrade; Souza, Rafael Xavier; Neto, Odilon França de Oliveira; Pereira, Michender Werison Motta

doi:10.18406/2316-1817v1n12013567

Cited by 2 publications

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“…For these specimens, the mean ratio between shoots and the root system was 4:1. This indicates that vetiver grass is capable of producing high levels of shoot and root biomass, as suggested by Manoel et al (2013). The aerial biomass helps to minimize soil loss by providing greater protection to the soil as a result of the strong tillering of the species, thereby reducing the direct impact of raindrops on the soil, whereas root biomass promotes strong anchoring to the ground, which helps to prevent landslides.…”

Section: Resultsmentioning

confidence: 87%

Contribution of the root system of vetiver grass towards slope stabilization of the São Francisco River

et al. 2015

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The control of soil erosion along the banks of the São Francisco River requires the use of efficient and economically viable strategies. Soil bioengineering techniques may be an alternative to the conventional methods as they provide good soil stabilization by mechanical reinforcement promoted by the roots. The objective of this study was to evaluate the contribution of the root cohesion of vetiver grass (Chrysopogon zizanioides (L.) Roberty) on slope stabilization in erosion control along the right margin of the São Francisco river. Seedlings of vetiver grass were planted in the riverbank of the Lower São Francisco located in Sergipe State, northeast Brazil, and plants were sampled after two years of growth to evaluate the effect of grass on the shear strength of the soil. The monolith and cylinder method was used to collect roots for the evaluation of Root Density (RL), Root Length Density (RLD), Root Area Ratio (RAR), Root Tensile Strength (TR), and Root Cohesion (CR). Data were submitted to analysis of variance (p < 0.05), with polynomial regression analysis. The results show that for RL, RLD, and RAR, the layers of soil at depths of 0-0.10 m had the highest values of 4.84 kg m -3 , 12.45 km m -3 , 1.66%, respectively. The mean TR was 83 MPa and CR was 528 kPa. Vetiver increases shear strength of the soil and slope stabilization. Key words: Chrysopogon zizanioides, soil reinforcement, bank erosion ResumoO controle da erosão marginal do Rio São Francisco requer estratégias eficientes e economicamente viáveis. A técnica de bioengenharia de solos pode ser uma alternativa, visto que proporciona maior estabilização do solo pelo efeito do reforço mecânico promovido pelas raízes das plantas. Esse estudo teve como objetivo avaliar a contribuição à coesão do solo da raiz do capim-vetiver (Chrysopogon zizanioides (L.) Roberty), na estabilidade do talude para controle da erosão da margem direita do Rio São Francisco. Mudas do capim-vetiver foram plantadas no talude da margem direita do Baixo São Francisco no estado de Sergipe, com amostragem das plantas realizada após dois anos do plantio, a fim de avaliar o efeito da gramínea no aumento da resistência ao cisalhamento do solo. Foram utilizadas a metodologia do monólito e o método do cilindro para coleta de raiz, visando à avaliação da Densidade Radicular (DR), Densidade do Comprimento Radicular (DCR), Razão de Raiz por Área (RAR),

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Section: Resultsmentioning

confidence: 87%

Contribution of the root system of vetiver grass towards slope stabilization of the São Francisco River

et al. 2015

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“…as stabilization of slopes(ANDRADE et al, 2011), soil decompaction(COBRA et al, 2012), nitrogen and phosphorus removal from domestic sewage (UCKER et al, 2012), animal feeding(MANOEL et al, 2013), recovery of areas damaged by urban solid wastes(RESENDE et al, 2015).…”

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confidence: 99%

Biometry of Vetiver Grass Cultivated in Soils of Different Texture Classes

Abraão

Pinto

Pereira

et al. 2019

BJA

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Objetivou-se analisar os atributos biométricos do capim vetiver em solos de textura argilosa e franco-argilosa. O experimento foi alocado em esquema fatorial duplo com blocos casualizados, sendo o primeiro fator: duas classes texturais do solo (franco- argilosa: 38% de argila; e argilosa: 59% de argila) e o segundo fator: seis tempos de avaliação. O diâmetro das touceiras a altura do solo e o índice de qualidade de Dickson não são afetados pela textura solo. O solo com textura franco-argilosa promoveu melhor desenvolvimento do vetiver em altura e número de perfilhos a partir de 120 dias de avaliação, recomendando-se este tipo de solo para implantação de viveiros de mudas de vetiver em contrapartida a solos argilosos.

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Produção de biomassa da gramínea vetiver (Chrysopogon zizanioides (L.) Roberty) em diferentes espaçamentos após 420 dias do plantio

Cited by 2 publications

References 0 publications

Contribution of the root system of vetiver grass towards slope stabilization of the São Francisco River

Contribution of the root system of vetiver grass towards slope stabilization of the São Francisco River

Biometry of Vetiver Grass Cultivated in Soils of Different Texture Classes

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