Biogas production from maize | Kukurūzas izmantošana biogāzes ražošanā
2012
Bartusevics, J., Latvia Univ. of Agriculture, Jelgava (Latvia). Faculty of Agriculture | Gaile, Z., Latvia Univ. of Agriculture, Jelgava (Latvia). Faculty of Agriculture | Strikauska, S., Latvia Univ. of Agriculture, Jelgava (Latvia). Faculty of Agriculture
The interest concerning using maize (Zea mays L.) for energy purposes in Latvia has increased significantly during the recent years. The research has mainly focused on the production of forage maize. The energy crops used for biogas production should provide high organic dry matter yield and high methane output per unit area. Maize is one of the agricultural plants that are a suitable substrate for biogas production. The aim of the paper is to determine the impact of maize hybrid and harvesting time on biogas production. A field trial was carried out at the Research and Study Farm “Vecauce” of the Latvia University of Agriculture (LLU) from 2008 till 2010. Ten (in 2008), eleven (in 2009) and fifteen (in 2010) maize hybrids with different maturity rating according to FAO number (FAO 180 – 340) were harvested at three different times beginning on 5 September at fourteen-day intervals. Two hybrids in 2008, three in 2009 and four in 2010 were used for biogas production. The biogas yield per ha of ensiled maize hybrids increased until the final harvest date.
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