Biomass Production of Lignocellulosic Crops as Affected by the Number of Cuttings

Biomass Production of Lignocellulosic Crops as Affected by the Number of Cuttings

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The diversification of the energy matrix through biomass production is being evaluated in Uruguay. The species Arundo donax, Panicum virgatum and Pennisetum purpureum would be an option. The objective of this paper was to compare their biomass and energy production, with different cutting moments. The crops were planted in the spring of 2007 and evaluated from January 2012 to August 2013. Two harvest treatments were performed: cuts in January and August; and a single cut in August. Arundo donax produced 18.6 Mg ha-1 year-1 dry matter, more than P. virgatum and P. purpureum, which produced 15.0 and 14.6 Mg ha-1 year-1 dry matter, respectively. In A. donax and P. virgatum, the single cut treatment produced more than two cuts. In P. purpureum, the difference between treatments was significant in 2012, and the August cut produced more than the January cut. Arundo donax and P. purpureum presented higher ash contents, and the August values were lower than the January ones. In P. virgatum there were no differences between harvests. The highest energy production was achieved with A. donax (407 GJ ha-1 year-1) by harvesting it once. Panicum virgatum was the crop of the lowest energy production with a single cut (292 GJ ha-1 year-1), but it had the lowest moisture (15 %) and ashes (4.9 %) content. With a single harvest, in August, a material with lower ash and moisture content would be achieved in all three species.

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Main Authors: Viana Otero, María Virginia, Siri Prieto, Guillermo
Format: Digital revista
Language:spa
Published: Coeditada entre Facultad de Agronomía - Udelar y el Instituto Nacional de Investigación Agropecuaria (INIA) 2018
Online Access:https://agrocienciauruguay.uy/index.php/agrociencia/article/view/14
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spelling oai:oai.agrocienciauruguay.uy:article-142021-04-16T02:33:58Z Biomass Production of Lignocellulosic Crops as Affected by the Number of Cuttings Producción de biomasa de cultivos lignocelulósicos según el número de cortes Viana Otero, María Virginia Siri Prieto, Guillermo Arundo donax energy crops Panicum virgatum Pennisetum purpureum Arundo donax cultivos energéticos Panicum virgatum Pennisetum purpureum The diversification of the energy matrix through biomass production is being evaluated in Uruguay. The species Arundo donax, Panicum virgatum and Pennisetum purpureum would be an option. The objective of this paper was to compare their biomass and energy production, with different cutting moments. The crops were planted in the spring of 2007 and evaluated from January 2012 to August 2013. Two harvest treatments were performed: cuts in January and August; and a single cut in August. Arundo donax produced 18.6 Mg ha-1 year-1 dry matter, more than P. virgatum and P. purpureum, which produced 15.0 and 14.6 Mg ha-1 year-1 dry matter, respectively. In A. donax and P. virgatum, the single cut treatment produced more than two cuts. In P. purpureum, the difference between treatments was significant in 2012, and the August cut produced more than the January cut. Arundo donax and P. purpureum presented higher ash contents, and the August values were lower than the January ones. In P. virgatum there were no differences between harvests. The highest energy production was achieved with A. donax (407 GJ ha-1 year-1) by harvesting it once. Panicum virgatum was the crop of the lowest energy production with a single cut (292 GJ ha-1 year-1), but it had the lowest moisture (15 %) and ashes (4.9 %) content. With a single harvest, in August, a material with lower ash and moisture content would be achieved in all three species. En Uruguay se plantea diversificar la matriz energética a través de la producción de biomasa. Las especies Arundo donax L., Panicum virgatum L.y Pennisetum purpureum L. Schumach serían una opción. Los objetivos de este trabajo fueron comparar su producción de biomasa y energía, con diferentes manejos de corte. Los cultivos se implantaron en la primavera del 2007 y se evaluaron desde enero de 2012 hasta agosto de 2013. Se realizaron dos tratamientos de cosecha: corte en enero y agosto; y un solo corte en agosto. Arundo donax produjo 18,6 Mg ha-1 año-1, más que P. virgatum y P. purpureum, que produjeron respectivamente 15,0 y 14,6 Mg ha-1 año-1 de materia seca. En A.donax y P. virgatum un solo corte produjo más que dos cortes. En P. purpureum la diferencia entre tratamientos fue significativa en 2012 y el corte de agosto produjo más que el de enero. Arundo donax y P. purpureum presentaron mayores contenidos de cenizas y los valores de agosto fueron menores a enero, en P. virgatum no hubo diferencias entre cosechas. La mayor producción de energía se logró con A. donax (407 GJ ha-1 año-1) al cosecharlo una sola vez. Panicum virgatum fue el cultivo de menor producción de energía con un solo corte (292 GJ ha-1 año-1), pero tuvo el menor contenido de humedad (15 %) y cenizas (4,9 %). Con una sola cosecha, en agosto, se lograría un material con menor contenido de cenizas y humedad, en las tres especies. Coeditada entre Facultad de Agronomía - Udelar y el Instituto Nacional de Investigación Agropecuaria (INIA) 2018-11-16 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://agrocienciauruguay.uy/index.php/agrociencia/article/view/14 10.31285/AGRO.22.2.3 Agrociencia Uruguay; Vol. 22 No. 2 (2018); e14 Agrociencia Uruguay; Vol. 22 Núm. 2 (2018); e14 Agrociencia Uruguay; v. 22 n. 2 (2018); e14 2730-5066 spa https://agrocienciauruguay.uy/index.php/agrociencia/article/view/14/3 Copyright (c) 2018 Agrociencia Uruguay
institution UDELAR
collection OJS
country Uruguay
countrycode UY
component Revista
access En linea
databasecode rev-agrociencia-uy
tag revista
region America del Sur
libraryname Biblioteca de la Facultad de Agronomía de la UDELAR de UY
language spa
format Digital
author Viana Otero, María Virginia
Siri Prieto, Guillermo
spellingShingle Viana Otero, María Virginia
Siri Prieto, Guillermo
Biomass Production of Lignocellulosic Crops as Affected by the Number of Cuttings
author_facet Viana Otero, María Virginia
Siri Prieto, Guillermo
author_sort Viana Otero, María Virginia
title Biomass Production of Lignocellulosic Crops as Affected by the Number of Cuttings
title_short Biomass Production of Lignocellulosic Crops as Affected by the Number of Cuttings
title_full Biomass Production of Lignocellulosic Crops as Affected by the Number of Cuttings
title_fullStr Biomass Production of Lignocellulosic Crops as Affected by the Number of Cuttings
title_full_unstemmed Biomass Production of Lignocellulosic Crops as Affected by the Number of Cuttings
title_sort biomass production of lignocellulosic crops as affected by the number of cuttings
description The diversification of the energy matrix through biomass production is being evaluated in Uruguay. The species Arundo donax, Panicum virgatum and Pennisetum purpureum would be an option. The objective of this paper was to compare their biomass and energy production, with different cutting moments. The crops were planted in the spring of 2007 and evaluated from January 2012 to August 2013. Two harvest treatments were performed: cuts in January and August; and a single cut in August. Arundo donax produced 18.6 Mg ha-1 year-1 dry matter, more than P. virgatum and P. purpureum, which produced 15.0 and 14.6 Mg ha-1 year-1 dry matter, respectively. In A. donax and P. virgatum, the single cut treatment produced more than two cuts. In P. purpureum, the difference between treatments was significant in 2012, and the August cut produced more than the January cut. Arundo donax and P. purpureum presented higher ash contents, and the August values were lower than the January ones. In P. virgatum there were no differences between harvests. The highest energy production was achieved with A. donax (407 GJ ha-1 year-1) by harvesting it once. Panicum virgatum was the crop of the lowest energy production with a single cut (292 GJ ha-1 year-1), but it had the lowest moisture (15 %) and ashes (4.9 %) content. With a single harvest, in August, a material with lower ash and moisture content would be achieved in all three species.
publisher Coeditada entre Facultad de Agronomía - Udelar y el Instituto Nacional de Investigación Agropecuaria (INIA)
publishDate 2018
url https://agrocienciauruguay.uy/index.php/agrociencia/article/view/14
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