[Fibre flax and seed flax. Results of the research performed in 1994. Growing techniques [in Belgium]]

abonos nitrogenados belgique belgium cantidad de semilla requerida encamado ensayos de variedades escarda fibre crops herbicidas herbicide herbicides linum usitatissimum lodging multiplication des plantes nitrogen fertilizers oil crops plant propagation plantas oleaginosas plantas textiles sowing rates variety trials verse weed control