Influence of different factors on the effect of spraying cereals in the spring with Oxitril 4 as regards weeds and grain yield, 2: Influence of crop, developmental stage, prevailing conditions, geographical and climatic situation, soil type, organic content and N-rate on weed stand and effect on weeds. Composition of weed stand at different relative yields

avenas avoine barley botanical composition cebada chemical control composition botanique crop yield cultivos de invierno culture d'hiver escarda etapas de desarrollo de la planta herbicidas herbicide herbicides lutte chimique malezas mauvaise herbe mcpa nitrogen fertilizers oats orge plant developmental stages secale cereale site factors trigo weed control weeds wheats winter crops