Harvesting techniques of agricurtular energy crops

Pod klasifikacijom poljoprivredne biomase ubraja se i biomasa dobivena uzgojem brzorastućih energetskih kultura. Kako bi sama proizvodnja energetskih kultura bila što učinkovitija, posebni naglasak treba usmjeriti na poljoprivrednu tehniku tijekom žetve biomase. Cilj ovog rada je dati pregled važnijih višegodišnjih poljoprivrednih energetskih kultura te mogućnosti provođenja njihove mehanizirane žetve. Žetva biomase se može podijeliti temeljem dvije tehnike, i to na višefaznu i jednofaznu. Sama košnja se provodi kosilicama sa rotoudaračima, rotacijskim kosilicama s bubnjevima, oscilirajućim kosilicama, rotacijskim kosilicama s tanjurima, samokretnim windrowerom te samokretnim krmnim kombajnima. U odnosu na tehniku provođenja žetve potrebno je osigurati i poljoprivrednu mehanizaciju za formiranje zbojeva, prešanje te manipulaciju biomase.The agricultural biomass classification includes also the biomass obtained by production of fast growing energy crops. In order to make the production of energy crops as efficient as possible, special emphasis should be put on agricultural harvesting biomass technique. The aim of this paper is to provide an over- view of the important perennial agricultural energy crops and the possibilities of their mechanized harvest. The biomass harvest can be divided on two techniques, namely multiphase and single phase. The mowing itself is carried out by flail mower, rotary drum mower, cutter bar mower, rotary disc mower, self-propelled windrower and self-propelled forage harvester. Considering the harvesting technique, it is important to provide appropriate agricultural mechanization for the gathering spread biomass into a windrow for ba- ling, pressing and manipulation of biomass