Biomass Partition
Mostrando 1-12 de 12 artigos, teses e dissertações.
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1. Growth and yield of soybean cultivated in agroforestry systems
ABSTRACT Agriculture has caused numerous concerns regarding the preservation of natural resources. In this context, agroforestry systems are emerging as a more sustainable alternative. The present study aimed to evaluate growth characteristics, radiation use efficiency, biomass partition, and yield of soybean grown in two agroforestry systems and full sun. A
Rev. Ceres. Publicado em: 2020-06
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2. Manejo da biomassa e sustentabilidade nutricional em povoamentos de Eucalyptus spp. em pequenas propriedades rurais
Resumo O estudo foi realizado com o objetivo de subsidiar práticas de manejo nutricional de povoamentos de Eucalyptus spp. em pequenas propriedades rurais no estado do Rio Grande do Sul. Foram avaliados povoamentos de 2, 4, 6 e 8 anos de idade, com amostragem de 24 árvores e determinação da biomassa e nutrientes nos componentes: folha, galho vivo, galho
Ciênc. Florest.. Publicado em: 30/05/2019
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3. Fast Screening of Solvents for Simultaneous Extraction of Furfural, 5-Hydroxymethylfurfural and Levulinic Acid from Aqueous Solution Using SMD Solvation Free Energies
Acid catalyzed decomposition of C5 and C6 sugars has been considered an important source of biomass derived chemicals. An essential step in this process is the extraction of furfural, hydroxymethylfurfural and levulinic acid from aqueous phase. In this work, a computational screening of 178 organic solvents for simultaneous extraction of these chemicals from
J. Braz. Chem. Soc.. Publicado em: 2018-02
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4. Plant densities and modulation of symbiotic nitrogen fixation in soybean
Soybean nitrogen (N) demands can be supplied to a large extent via biological nitrogen fixation, but the mechanisms of source/sink regulating photosynthesis/nitrogen fixation in high yielding cultivars and current crop management arrangements need to be investigated. We investigated the modulation of symbiotic nitrogen fixation in soybean [Glycine max (L.) M
Sci. agric. (Piracicaba, Braz.). Publicado em: 2014-06
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5. ESTIMATIVA DE BIOMASSA AÉREA E TEOR DE CARBONO DA ESPÉCIE RHIZOPHORA MANGLE L. / ABOVE-GROUND BIOMASS ESTIMATION AND CARBON STOCK IN RHIZOPHORA MANGLE L.
The interest in quantifying mangrove forest biomass has increased in recent years due to the potential that tropical forests have in accumulating atmospheric carbon. The high organic carbon in mangrove attributes an important role in the estimation of global carbon and the processes of climate change mitigation. The objective of this study was to develop all
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/02/2012
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6. Nitrogen transformations in soil-plant system after herbicide application / Transformações do nitrogênio no sistema solo-planta após aplicação de herbicidas
Herbicide adoption might modify nitrogen dynamics in agroecossystems and, for consequence, nutrient availability for plants and microorganisms. These modifications may occur because of plant physiologic changes and/or due to herbicide effects on activity and composition of soil microbial community, which has important functions on system N modifications. In
Publicado em: 2009
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7. Biologia e manejo da planta daninha Borreria densiflora DC. / Biology and management of the weed Borreria densiflora DC.
The weed vassourinha-de-botao (Borreria densiflora DC.) has been presenting increase in its infestation in areas cultivated with sugarcane and soybean, respectively in Maranhao and Goias states and north of Tocantins state, Brazil. Field observations have reported the control deficiency of this species, when it occurs in advanced growth stage. Thus, this res
Publicado em: 2008
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8. Aspectos fisiolÃgicos e anatÃmicos das sementes e do desenvolvimento inicial de Eugenia pyriformis Camb. / Physiological and anatomical aspects of seeds and initial development of Eugenia pyriformis Camb. seedlings. 2006. 225 p. Thesis (Doctor degree in Agronomy/Plant Physiology) - Universidade Federal de Lavras, Lavras, MG. *
Sementes recalcitrantes perdem a viabilidade quando sÃo dessecadas. Existem vÃrios mecanismos de tolerÃncia à dessecaÃÃo que foram revisados neste trabalho sob uma abordagem ecolÃgica, fisiolÃgica e evolutiva. As sementes de Eugenia pyriformis Camb. (Myrtaceae) sÃo recalcitrantes e foram estudadas quanto ao desempenho germinativo e a alteraÃÃes ul
Publicado em: 2006
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9. Aplicação foliar de nitrato e de microorganismos eficazes (EM) e seus efeitos sobre a partição de nutrientes em variedades de milho (Zea mays L.) cultivadas com resíduo industrial / Nitrate and effective microorganisms (EM) foliate application and the effects on the nutrient partition in corn varieties (Zea mays L.) cultivated with industrial residue
Nitrate and the microorganism solution (EM), in different treatments, were applied to the foliage of the Sol da manhã and BRS 1010 corn varieties, in order to evaluate nutrients level in different parts of the plants (vegetative and reproductive). It was also evaluated the possibility of the usage of an industrial residue, generated from the production of l
Publicado em: 2006
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10. Ecofisiologia de plantas lenhosas jovens de cerrado sob irradiâncias contrastantes.
We evaluated long term responses, such as survivorship, growth, photosynthetic capacity and leaf nutrient content on potted young plants of Cybistax antisyphilitica (Mart) Mart. (Bignoniaceae), Tabebuia chrysotricha (Mart. ex DC) Mart. (Bignoniaceae), Anadenanthera falcata Benth. Speg. (Mimosoideae), Stryphnodendron adstringens Mart. Coville (Mimosoideae), a
Publicado em: 2004
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11. ProduÃÃo e purificaÃÃo de DNA plasmidial a partir de Escherichia coli recombinante
The production and purification of plasmid DNA with high degree of purity have been having a large interest in the last years, mainly due to the development of several techniques, such as molecular medicine, gene therapy and DNA vaccination. The different bacterial growth conditions were set up in order to analyze the plasmid pD2 production, such as the infl
Publicado em: 2003
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12. Biosorption of dichlorodiphenyltrichloroethane and hexachlorobenzene in groundwater and its implications for facilitated transport.
The potential for enhanced mobility of hydrophobic pollutants by cotransport with bacteria in saturated soils was evaluated from measurements of biosorption of 14C-labeled hexachlorobenzene and dichlorodiphenyltrichloroethane (DDT) to five strains of soil and sewage bacteria. The sorption process could be described by a linear partition equation and appeared