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Energy balance of sunflower production

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dc.contributor.authorAkdemir, S.
dc.contributor.authorCavalaris, C.
dc.contributor.authorGemtos, T.
dc.date.accessioned2017-05-31T11:34:24Z
dc.date.available2017-05-31T11:34:24Z
dc.date.issued2017
dc.descriptionArticleeng
dc.description.abstractThe aim of the present study was to make an energy analysis of sunflower crop in the Trakya Region of Turkey, to evaluate the potential for using it as bioenergy source. Actual data for the common cropping practices applied in the region were collected with questionnaires given to the farmers. Literature data were used to obtain necessary energy indices. The collected information was used to establish energy budgets. Two alternative scenarios were examined: 1st - Using only the seed for biofuel production and 2nd -using the seed for biofuel and the stalks as biomass for bioenergy. The results showed that sunflower presented positive energy balance for both cases. Net energy was 35,334 MJ ha-1 when only the seed was taken into account and 87,308 MJ ha-1 for both seed and stalks. Energy efficiency was 3.67 and 7.34 respectively. Fertilization was the most energy intensive input (6,594 MJ ha-1 ) accounting for 48–50% of the total inputs. Tillage was the second most energy intensive input (3,595 MJ ha-1 ) accounting for 26–27% of total inputs. There were 6 different tillage operations such as ploughing, 4 machinery passages for seedbed preparation and hoeing in the sunflower production. All these operations increased energy inputs of the tillage. The total energy inputs were relatively low because it was possible to achieve high yields without irrigation.eng
dc.identifier.issn1406-894X
dc.identifier.publicationAgronomy Research, 2017, vol. 15, no. 4, pp. 1463-1473eng
dc.identifier.urihttp://hdl.handle.net/10492/3496
dc.identifier.urihttp://dx.doi.org/10.15159/ar.17.003
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.subjectsunflowereng
dc.subjectenergy analysiseng
dc.subjectTrakya Regioneng
dc.subjectarticleseng
dc.titleEnergy balance of sunflower productioneng
dc.typeArticleeng

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2017, Vol. 15, No. 4