Effects of soil type, weather and resistance on efficacy of herbicides against black-grass

absorption alopecurus myosuroides chemical control chlorotoluron escarda fenoxaprop genetica genetics herbicidas herbicide herbicides isoproturon lluvia lutte chimique malezas mauvaise herbe pluie rain reino unido resistance to chemicals soil soil types sol suelo tipos de suelos type de sol united kingdom weather weed control weeds