Effects of agronomic practices on free fatty acid levels in the oil of Ontario-grown spring canola

abonos de oligoelementos abonos nitrogenados abonos potasicos acide gras air pollution application rates benomilo benomyl bore boro boron brassica napus cantidad de semilla requerida chemical composition composition chimique contaminantes cultivars date de plantation dose d'application engrais potassique environmental factors espacement espaciamiento estres etapas de desarrollo de la planta facteur du milieu factores ambientales fatty acids micronutrient fertilizers nitrogen fertilizers ontario ozone ozono plant developmental stages planting date polluant pollutants potash fertilizers seed treatment soil water regimes sowing rates spacing stress traitement des semences tratamiento de semillas variedades varieties