Influence of different factors on the effect of Expand (sethoxydim) against Elymus repens in oil seed crops, potatoes and peas

air aire brassica campestris brassica napus chemical control contenido de humedad crop yield elymus repens environmental temperature escarda herbicidas herbicide herbicides humedad humedad relativa humidity humus lluvia lutte chimique malezas perennes mauvaise herbe vivace moisture content oil crops perennial weeds pisum sativum plantas oleaginosas pluie pression de vapeur rain relative humidity rendement des cultures rendimiento de cultivos soil types solanum tuberosum spraying suecia sweden temperatura ambiente teneur en eau thousand seed weight type de sol vapour pressure vapour pressure deficit weed control