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DIGITAL.CSIC
Conference object . 2017 . Peer-reviewed
Data sources: DIGITAL.CSIC
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Caracterización del endocarpio de Acrocomia aculeata como sustrato de cultivos

Authors: León Ovelar, Regina; Fernández Boy, E.; Knicker, Heike;

Caracterización del endocarpio de Acrocomia aculeata como sustrato de cultivos

Abstract

Se ha estudiado el residuo de Acrocomia aculeata (coco paraguayo) para su uso potencial como sustrato y en enmiendas de suelos; se ha realizado la caracterización fisicoquímica de este residuo al natural y en forma pirolizada (Biochar) a tres temperaturas, 200º, 325º y 450ºC. El estudio se ha realizado con muestras molidas siendo el tamaño de partícula menor de 1 mm. El contenido de nitrógeno aumenta en los biochars respecto a la muestra cruda y entre los biochars aumenta al aumentar la temperatura, igual que ocurre con el P asimilable. Este aumento puede ser debido al incremento de compuestos heterociclos. Mediante el estudio de resonancia magnética nuclear en estado sólido se ha podido confirmar la presencia de lignina y celulosa en la muestra cruda. También se comprueba que después de una pirolisis a 200ºC o no hay cambios de composición o si los hay son tan sutiles que no se detectan. Los espectros de las muestras pirolizadas a 325 y 450ºC muestran cambios químicos significativos, las señales en los espectros indican degradación de la lignina y la celulosa. Con el análisis de las muestras mediante la técnica de microscopía electrónica de barrido se han observado diferencias significativas en la morfología y tamaño de poros de la muestra cruda respecto a las pirolizadas. Las isotermas de adsorción obtenidas muestran el aumento del área superficial en las muestras pirolizadas.

Ministerio de Economía y Competitividad (España) CGL2015-64811-P y CITIUS- UNIVERSIDAD DE SEVILLA

5 páginas.-- 3 figuras.-- 2 tablas.-- 12 referencias

Peer reviewed

Country
Spain
Related Organizations
Keywords

Biochar, Enmienda, Residuos, Hidropónico

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Green