Reducing the working load of operators of harvester-threshers

aperos batteuse business management combine harvesters conception confort del operador cosecha cosechadoras crops cultivos cultivos de grano design economic plants equipment equipo ergonomia ergonomic factors ergonomics ergonomie estudio del trabajo europa europe facteur ergonomique grain crops harvesters harvesting implements methode methods operator comfort organisation du travail outil plantas plante plante de culture plants segadoras-trilladoras threshers trilladoras work organization work study