Tropical woods and agricultural residues as sources of pulp. A symposium

africa afrique agricultural wastes australia australie bagasse bagazo bois bois de feuillus cellulose celulosa cereales cereals chemical pulp chemicophysical properties chemistry chimie cross cutting deciduous plants eua eucalyptus fibras vegetales fibre vegetale hardwood madera madera de frondosas materias primas muestreo netherlands paille paja pasta pinus plant fibres plantas deciduas pulp pulping raw materials reino unido sampling straw troceado united kingdom usa wood