Comparative analysis of the results of the bioenergy crop productivity (Miscantus giganteus) grown on degraded and fertile land

Abstract

Under strong pressure to improve energy security, from the standpoint of environmental protection, and to reduce dependence on imported energy, many countries are now turning to alternative biofuels ethanol and biodiesel derived from products of plant origin. Miscanthus or Miscanthus (Miscanthus × giganteus Greef et Deu.) Represents a new perennial crop for the production of biomass, which is used as an energy source for combustion in boilers. Because achieving high yields and high annual production of biomass for the production of this crop agroenergetskog great interest. The paper presents the results of productivity miscanthus in two different land growing localities in the two study years. Average yield of miscanthus biomass ranged from 5.78 t ha-1, the site of tenants, to 7.44 t ha-1, in the locality of Sremska Mitrovica. Data analysis evidenced a statistically significant difference in yield between the studied biomass years and growing localities, p lt 0.05. At the site of Sremska Mitrovica, the fertile land, achieved significantly higher yields in relation to the location of Tenants, on degraded land, p lt 0.05. Actual biomass yields were higher by 1.66 t ha-1 respectively for 28.72%. .

Pod snažnim pritiskom da se poboljša energetska sigurnost, sa stanovišta zaštite životne sredine, te da se smanji zavisnost od uvoza energenata, mnoge zemlje prelaze na alternativna biogoriva etanol i biodizel dobijena iz proizvoda biljnog porekla. Miskantus ili kineska šaš (Miscanthus×giganteus Greef et Deu.) predstavlja novi višegodišnji usev za proizvodnju biomase, koja se koristi kao energetska sirovina za sagorevanje u kotlovima. Zbog ostvarenja visokih prinosa i velike godišnje produkcije biomase za proizvodnju ovog agroenergetskog useva vlada veliko interesovanje. U radu su prikazani rezultati produktivnosti miskantusa na dva različita zemljišna lokaliteta gajenja u dve ispitivane godine. Prosečni prinosi biomase miskantusa varirali su od 5,78 t ha-1, na lokalitetu Stanari, do 7,44 t ha-1, na lokalitetu Sremska Mitrovica. Analizom dobijenih podataka evidentna je statistički značajna razlika u prinosu biomase između ispitivanih godina i lokaliteta gajenja, p lt 0,05. Na lokalitetu Sremska Mitrovica, na plodnom zemljištu, ostvareni su statistički značajno viši prinosi u odnosu na lokalitet Stanari, na degradiranom zemljištu, p lt 0,05. Ostvareni prinosi biomase bili su viši za 1,66 t ha-1 odnosno za 28,72%.