CARACTERIZAÇÃO DA BIOMASSA DA AVEIA PARA PRODUÇÃO DE ENERGIA

Cláudia Weber Pinto; Gabriel Barth; Rudimar Molin; Dimas Augostinho da Silva; Volnei Pauletti

doi:10.1590/1983-21252021v34n305rc

Authors

Cláudia Weber Pinto Department of Soils and Agricultural Engineering, Universidade Federal do Paraná, Curitiba, PR https://orcid.org/0000-0001-5115-098X
Português PortuguêsDepartment of Soils and Plant Nutrition , Fundação ABC para Assistência e Divulgação Técnica Agropecuária, Castro, PR https://orcid.org/0000-0002-8669-0588
Rudimar Molin Department of Plant Sciences, Fundação ABC para Assistência e Divulgação Técnica Agropecuária, Castro, PR https://orcid.org/0000-0001-8102-9160
Dimas Augostinho da Silva Department of Forest Engineering and Technology, Universidade Federal do Paraná, Curitiba, PR https://orcid.org/0000-0002-5433-1927
Volnei Pauletti Department of Soils and Agricultural Engineering, Universidade Federal do Paraná, Curitiba, PR https://orcid.org/0000-0002-9231-7851

DOI:

https://doi.org/10.1590/1983-21252021v34n305rc

Keywords:

Bioenergy. Calorific power. Immediate analysis. Avena strigosa. Avena sativa.

Abstract

Biomass produced in agricultural areas stores energy that can be used, contributing to regional development. Among the widely cultivated agricultural species is oats, destined for the production of not only grains and forage, but also biomass. The objective of this study was to characterize oat biomass in terms of the potential for energy generation considering the genetic and cultivation environment variability. Four field experiments were conducted in the state of Paraná and one in the state of São Paulo, Brazil, with black oat (Avena strigosa) and white oat (Avena sativa) cultivars. At the milky grain stage, plants were collected to quantify the production of shoot biomass and its qualitative variables for energy production and energy potential. Biomass yield varied between cultivars and cultivation sites. The mean higher calorific value was 17.9 MJ Kg^-1, varying more between cultivation sites than between cultivars, being inversely proportional to the ash content. The contents of carbon, fixed carbon, volatile materials and nitrogen in the biomass did not vary between oat cultivars. The power generation potential varied widely between cultivars and cultivation sites, from 1557 to 3091 KWh ha^-1, influenced mainly by the biomass yield, which overlaps the effects of the variations found in biomass quality. We concluded that oats are a species with high potential for use as an energy product, and the selection of the most productive cultivars regionally is crucial.

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