Chemical composition and methane yield of reed canary grass as influenced by harvesting time and harvest frequency

KANDEL, Tanka P and SUTARYO, Sutaryo and MOLLER, Henrik B and JORGENSEN, Uffe and LAERKE, Poul E (2013) Chemical composition and methane yield of reed canary grass as influenced by harvesting time and harvest frequency. Bioresource Technology, 130 . pp. 659-666. (Unpublished)

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Abstract

This study examined the influence of harvest time on biomass yield, dry matter partitioning, biochemical composition and biological methane potential of reed canary grass harvested twice a month in one-cut (OC) management. The regrowth of biomass harvested in summer was also harvested in autumn as a two-cut management with (TC-F) or without (TC-U) fertilization after summer harvest. The specific methane yields decreased significantly with crop maturity that ranged from 384 to 315 and from 412 to 283 NL (normal litre) (kg VS) 1 for leaf and stem, respectively. Approximately 45% more methane was produced by the TC-F management (5430 Nm 3 ha 1 ) as by the OC management (3735 Nm ). Specific methane yield was moderately correlated with the concentrations of fibre components in the biomass. Larger quantity of biogas produced at the beginning of the biogas assay from early harvested biomass was to some extent off-set by lower concentration of methane.

Item Type:Article
Subjects:T Technology > TP Chemical technology
S Agriculture > SF Animal culture
Divisions:Faculty of Animal and Agricultural Sciences > Department of Animal Agriculture
ID Code:78126
Deposited By:Mr. Perpus FP Admin
Deposited On:14 Nov 2019 09:49
Last Modified:14 Nov 2019 09:49

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