Nitrogen application timing effects on downy brome (Bromus tectorum) and winter wheat (Triticum aestivum) growth and yield.

abonado fraccionado abonos nitrogenados application methods application rates barbecho bromus tectorum choix de la date contenido de materia seca crop yield date de traitement dry matter content dynamique des populations fallow fecha de tratamiento grain granos growth rate lluvia malezas mauvaise herbe nitrogen fertilizers oregon plant competition pluie population dynamics rain rendement des cultures rendimiento de cultivos split dressings taux de croissance timing treatment date triticum aestivum weeds