[The possibilities and problems of using the renewable resources of energy of plant origin]

biocarburant biocarburante biofuels bois brassica napus compound feeds costos costs czech republic desechos alimentarios economic analysis food wastes graine de colza impuestos madera nutritive value oilseed cakes paille paja piensos compuestos populus production data rapeseed recursos renovables renewable energy renewable resources ressource renouvelable salix semilla de colza straw taxes tortas oleaginosas valeur nutritive valor nutritivo wood