Avaliação ecônomica de criadouro de capivaras em sistema semi-intesivo para a região costeira sul do Rio Grande do Sul.

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Preparo do solo pós-colheita do arroz irrigado.

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Avaliação econômica de sistemas de produção de arroz irrigado em regiões selecionadas do Rio Grande do Sul, safras 2007/2008 a 2009/2010.

O presente trabalho objetivou o levantamento e avaliação da viabilidade dos Sistemas de produção modais de arroz irrigado praticados na Fronteira Oeste e na região Sul do RS

Avaliação dos impactos ambientais e econômicos da cultivar de arroz irrigado BRS Querência.

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Particle size and lime addiction on properties of wood-cement composites produced by the method of densification by vibro compaction

This paper aimed to evaluate the effects of particle size and the use of lime as a pretreatment of Pinus spp wood particles on the production of wood-cement composites by vibro-compaction densification. Specimens for internal bond and static bending were produced with two different particle sizes: G1, particles that pass through a 4mm screen and were retained at 2mm screen, and G2, particles that pass through a 2mm screen and were retained at 0.84mm screen. The use of lime was also tested in two different methods as pretreatment of wood particles: carbonatation of wood particles before being used in the composite mixture; and addition of hydrated lime directly to the composite mixture. Use of larger particles (G1) presented higher values of internal bond and MOR than composites produced with smaller particles (G2). About the pretreatments, the use of hydrated lime resulted in composites with higher density and better internal bond

Perdas e reduções no volume de arroz colhido durante o processo de cultivo, colheita e processamento.

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Projeto Marca - avaliação da implantação do projeto na ETB, safra 2004/05.

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