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Turkish Journal of Agriculture and Forestry

Abstract

In order to achieve sustainable biomass production from perennial grasses, seasonal changes in biomass yield, combustion quality, and nutrient translocation need to be monitored in detail. In this study, the effects of six distinct disruptive harvests (November, January, March, May, July, and September) on the dry biomass yield, ash, moisture, and mineral contents, as well as the composition of the cell walls and the translocation of nutrients in bulbous canary grass, were investigated in a semiarid Mediterranean climate. The September harvest significantly reduced aboveground ash and mineral contents, while their contents in belowground biomass exhibited a significantly increasing trend from May to September, which might be evidence of nutrient mobilization from the shoots to storage organs during the summer dormancy. Additionally, the September harvest considerably improved the combustion quality of bulbous canary grass by reducing moisture content (from 75.35% to 19.23%), ash-sintering index (1.47 to 0.70), and increasing lignin content (8.40% to 13.11%) and lignin/holocellulose ratio (0.151 to 0.187), despite causing a 26% DM yield loss (from 235.8 to 174.9 g plant–1) compared to the May harvest, which coincided with the end of the growing period. However, further efforts are required to reduce the ash and mineral contents of the crop in order to decrease the risk of slagging, sintering, and hazardous gas emissions that may occur as a result of burning biomass.

Author ORCID Identifier

RECEP İRFAN NAZLI: 0000-0002-6416-6603

MİHRAB POLAT: 0009-0008-0018-7377

ASİYE ÇAVDAR: 0000-0002-8634-5856

VEYİS TANSI: 0000-0003-0613-4125

DOI

10.55730/1300-011X.3269

Keywords

Bulbous canary grass, bioenergy, nutrient translocation, combustion, harvest time, Mediterranean

First Page

333

Last Page

344

Publisher

Scientific and Technological Research Council of Turkey (TUBITAK)

Creative Commons License

Creative Commons Attribution 4.0 International License
This work is licensed under a Creative Commons Attribution 4.0 International License.

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