The chemical content of different energy crops
2011
Poisa, L., Latvia Univ. of Agriculture, Jelgava (Latvia). Faculty of Agriculture. Inst. of Agrobiotechnology | Adamovics, A., Latvia Univ. of Agriculture, Jelgava (Latvia). Faculty of Agriculture. Inst. of Agrobiotechnology | Antipova, L., Mykolayiv State Agrarian Univ. (Ukraine) | Siaudinis, G., Lithuanian Research Centre for Agriculture and Forestry, Vezaiciai, Klaipeda distr. (Lithuania). Vezaiciai Branch | Karcauskiene, D., Lithuanian Research Centre for Agriculture and Forestry, Vezaiciai, Klaipeda distr. (Lithuania). Vezaiciai Branch | Platace, R., Latvia Univ. of Agriculture, Jelgava (Latvia). Faculty of Agriculture. Inst. of Agrobiotechnology | Zukauskaite, A., Klaipeda Univ. (Lithuania). Faculty of Marine Engineering | Malakauskaite, S., Klaipeda Univ. (Lithuania). Faculty of Marine Engineering | Teirumnieka, E., Rezekne Higher Education Institution (Latvia)
English. The paper presents the data of gaseous and alkali elements in above-ground biomass of energy crops. The investigations objects were Phalaris arundinacea L., Populus nigra, Artemisia vulgaris, Sylphium perfoliatum, Sida hermaphrodita, Dactylis glomerata, Salix viminalis, Medicago sativia L. The aim of the research: to evaluate the amount of chemical elements in energy crops. Evaluating the energy crops it can be seen, that the most alkaline metals are contained in Sida hermaphrodita, and the least in Sylphium perfoliatum L. The content of alkali metals in plants is a significant factor, because it presence promotes corrosion in heating systems.
Show more [+] Less [-]Latvian. Pētījuma mērķis: novērtēt ķīmisko sastāvu dažādiem enerģētiskajiem augiem. Pētījuma objekti: Phalaris arundinacea L., Populus fascigiata, Artemisia vulgaris, Sylphium perfoliatum, Sida hermaphrodita, Dactylis glomerata, Salix viminalis, Medicago sativa L. Mūsu pētījumā iegūtais N saturs miežabrālim svārstās robežās no 3.282% līdz 4.307%, S – 0.224% - 0.259%, H – 6.009 – 6.761%, C – 41.31% – 45.93%, O – 40.85% - 47.463%. Sēra daudzums miežabrāļa šķirnei ‘Marathon’ ir mazāks par naftā esošo sēra daudzumu. Pelnu saturs lucernā ir no 7.9 – 13.9%, bet kokšķiedras - 12 - 28% atkarībā no auga daļas. Ķīmisko elementu daudzums lucernā ir atkarīgs no auga daļas (p ir mazāks par 0.05). Visvairāk sārmu metālu satur Sida hermaphrodita, bet vismazāk Sylphium perfoliatum L. Sārmu metālu daudzums augos ir svarīgs faktors, jo to klātbūtne veicina korozijas veidošanos apkures sistēmās.
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