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Reed canary grass cultivation’s energy efficiency and fuel quality

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dc.contributor.authorAnnuk, Andres
dc.contributor.authorAllik, Alo
dc.contributor.authorAnnuk, Karl
dc.contributor.departmentEstonian University of Life Sciences. Institute of Technology. Department of Energy Engineeringeng
dc.contributor.departmentEstonian University of Life Sciences. Institute of Agricultural and Environmental Scienceseng
dc.date.accessioned2017-05-31T11:27:39Z
dc.date.available2017-05-31T11:27:39Z
dc.date.issued2017
dc.descriptionArticleeng
dc.description.abstractThe article discusses the energy yield and yield capacity of reed canary grass stands in semi-natural and cultivated meadows with edaphic conditions most favourable for species growing on fertile soil. Energy grass production yields have been assessed with respect to the issues of precipitation, sunshine, and frozen ground. In Estonia, a dried matter level of 4.2– 8.5 t ha-1 of reed canary grass may produce 72.91–147.56 GJ ha-1 gross energy by using 1.48– 3.06 GJ ha-1 input energy, which consequently nets 71.44–1,445.00 GJ ha-1 . The above finding indicates that 1 MJ input energy enables the production of 2.8 kg dry matter. The efficiency of energy production (ratio of energy returned on energy invested) depends on the amount of input energy used to grow and harvest reed canary grass. The input energy payback ratio for the given case was 48.2–49.4, which was higher than cases with lower and higher dry matter yield levels. Precipitation during the second part of the Estonian summer, heavy winter snow cover and a simultaneous frequent lack of frozen ground reduce the productivity of reed canary grass as energy hay because the winter or early spring harvest cannot be used.eng
dc.identifier.issn1406-894X
dc.identifier.publicationAgronomy Research, 2017, vol. 15, no. 4, pp. 1474-1483eng
dc.identifier.urihttp://hdl.handle.net/10492/3495
dc.identifier.urihttp://dx.doi.org/10.15159/ar.17.004
dc.rights.holderCopyright 2009 by Estonian University of Life Sciences, Latvia University of Agriculture, Aleksandras Stulginskis University, Lithuanian Research Centre for Agriculture and Forestry. No part of this publication may be reproduced or transmitted in any form, or by any means, electronic or mechanical, incl. photocopying, electronic recording, or otherwise without the prior written permission from the Estonian University of Life Sciences, Latvia University of Agriculture, Aleksandras Stulginskis University, Lithuanian Research Centre for Agriculture and Forestry.eng
dc.subjectbioenergyeng
dc.subjectenergy payback ratioeng
dc.subjectfuel qualityeng
dc.subjectharvest yieldeng
dc.subjectphalaris arundinaceaeng
dc.subjectarticleseng
dc.titleReed canary grass cultivation’s energy efficiency and fuel qualityeng
dc.typeArticleeng

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2017, Vol. 15, No. 4