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20,181 research outcomes, page 1 of 2,019
  • publication . Article . 2014
    Open Access Portuguese
    Authors:
    Natalie Ferreira de Almeida; Geraldo Bortoletto Jr.; Rafael Farinassi Mendes; Paula Gabriela Surdi;
    Persistent Identifiers
    Publisher: Instituto de Florestas da Universidade Federal Rural do Rio de Janeiro

    Neste trabalho, objetivou-se avaliar o potencial da madeira do híbrido Pinus elliottii var. elliottii ×Pinus caribaea var. hondurensis, aos sete anos e dez meses de idade, para produção de lâminas. Foram avaliados os seguintes aspectos: a densidade da madeira, o rendime...

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  • publication . Article . 2015
    Open Access Portuguese
    Authors:
    Marco Túlio Mendonça Diniz; Fábio Perdigão Vasconcelos; Márcia Barbosa Martins;
    Persistent Identifiers
    Publisher: Universidade Federal de Uberlândia, Instituto de Geografia, Programa de Pós-Graduação em Geografia

    RESUMO A atividade salineira já foi praticada de forma extensiva em todo o litoral brasileiro desde o Pará até o Rio de Janeiro, hoje as salinas mecanizadas do litoral setentrional potiguar produzem cerca de 94% do sal marinho brasileiro. O empreendedorismo dos empresár...

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  • publication . Article . 2003
    Open Access English
    Authors:
    Henrique Dantas Neder;
    Persistent Identifiers
    Publisher: Sociedade Brasileira de Economia e Sociologia Rural

    The growth of non-agricultural activity since the 1980s has reconfigured the economic and social dynamic in Brazil’s rural areas. Our paper intends to describe the impact of this growth on income distribution in rural Brazil. We made use of a method of decomposition of ...

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  • publication . Article . 2010
    Open Access
    Authors:
    Eva Marino; Javier Madrigal; Mercedes Guijarro; Carmen Hernando; C. Díez; Cristina Fernández;
    Persistent Identifiers
    Publisher: CSIRO Publishing

    <jats:p> Mechanical treatments are traditionally used to modify the fuel complex in shrubland, but information about their actual effectiveness in reducing the risk of wildfire initiation is scarce. The effects of two mechanical fuel treatments (shrub clearing with crus...

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  • publication . Article . 2020
    Open Access
    Authors:
    Solé-Medina, Aida; Heer, Katrin; Opgenoorth, Lars; Kaldewey, Phillip; Danusevicius, Darius; Notivol Paíno, Eduardo; Robledo-Arnuncio, Juan J.; Ramírez-Valiente, José A.;
    Persistent Identifiers
    Project: EC | GenTree (676876)

    Does the origin of the seeds imply differences in early fitness traits? Are the first stages of the regeneration process affected by the environment? Do the origin of the seeds (genotype) and the environment interact? Do the differences in emergence rates and growth tra...

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  • publication . Article . 1987
    Open Access Portuguese
    Authors:
    NOBREGA, L. B. da; BELTRAO, N. E. de M.; AZEVEDO, D. M. P. de; VIEIRA, D. J.;
    Publisher: Pesquisa Agropecuária Brasileira, Brasília, DF, v. 22, n. 11/12, p. 1145-1150, nov./dez. 1987.

    Um ensaio de campo foi conduzido no Campo Experimental de Surubim, PE, em solo Franco-Arenoso, Das misturas herbicídicas, algumas foram aplicadas em pré-plantio incorporado e outras em pré-emergência em relação à cultura e às plantas daninhas. O complexo floristico da á...

  • publication . Article . 2019
    Open Access English
    Authors:
    Jô de Farias Lima; D. Montagner; S. S. Duarte; E. T. O. Yoshioka; Márcia Kelly Reis Dias; Marcos Tavares-Dias;
    Persistent Identifiers
    Publisher: Embrapa Secretaria de Pesquisa e Desenvolvimento

    Abstract: The objective of this work was to evaluate a recirculating aquaculture system using biological aerated filters in tanks for tambaqui (Colossoma macropomum) fingerlings farming, with two initial stocking densities (1.4 and 2.5 kg m-3). The biofilters had simila...

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  • publication . Article . 2014
    Open Access
    Authors:
    Leonardo Paz Deble; José Newton Cardoso Marchiori;
    Persistent Identifiers
    Publisher: Universidad Federal de Santa Maria

    Acacia ibirocayensis Marchiori, species endemic in southwest of Rio Grande do Sul State is transferred to genus Vachellia . Description, illustration, comments about geographic distribution, conservation and allied taxa are furnished.

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  • publication . Article . 2013
    Open Access Spanish; Castilian
    Authors:
    Valentín A. Esqueda; Enrique Rosales;
    Persistent Identifiers
    Publisher: Universidad de Costa Rica

    Se establecieron dos experimentosen Los Naranjos, Veracruz, México, con el objeto de evaluarla eficiencia biológica y el efecto fitotóxico del herbicida postemergentebispiribac-sodio, solo y en mezcla con otros herbicidas,para controlar malezas en el cultivo de arroz de...

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  • publication . Article . 2017
    Open Access Spanish; Castilian
    Authors:
    Maria C. Torres-Madronero;
    Persistent Identifiers
    Publisher: Universidad Nacional de Colombia (Sede Medellín). Facultad de Minas.

    Abstract Hyperspectral remote sensors acquire data coming from hundreds of narrow bands through the electromagnetic spectrum; this allows the terrestrial and maritime surfaces to be characterized for Earth observation. Hyperspectral image processing requires algorithms ...

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20,181 research outcomes, page 1 of 2,019