Postponed harvest of Miscanthus x Giganteus - influence on the quality and quantity of accumulated biomass | Odlozena zetva Miscanthus x Giganteus - uticaj na kvalitet i kolicinu obrazovane biomase
2009
Dzeletovic, Z., Institut za primenu nuklearne energije - INEP, Beograd - Zemun (Serbia) | Mihailovic, N., Institut za primenu nuklearne energije - INEP, Beograd - Zemun (Serbia) | Glamoclija, Dj., Poljoprivredni fakultet, Beograd - Zemun (Serbia) | Drazic, G., Fakultet za primenjenu ekologiju - FUTURA, Beograd (Serbia)
Miscanthus x giganteus is a new perennial crop for the production of biomass, utilized as an energy source for combustion in boilers. The quality of this raw material depends mostly on water and nitrogen contents. Field trials were carried out at eutric cambisol. During the interval of intensive growth and development (since the beginning of April till end of October) miscanthus plants were characterized with high water content (50-65%) and high nitrogen content. At the end of September maximal biomass of the miscanthus aboveground parts was achieved. With the shift to the stage of winter dormancy (since the end of October till the beginning of April) water content in the crop was gradually decreased by stem and leaf drying. N, P, and K contents in the crop were also decreased, partly due to defoliation and falling off of stem tops, and partly due to nutrients transport from aboveground parts to the rhizomes. Postponing of the harvest to the interval between the end of Decembre and the end of March, resulted in decreased total biomass of miscanthus, but due to decreased water content and nitrogen compound quantity the obtained biomass was more convenient as a combustion fuel.
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