Some species, e.g. vetch and oilseedrape, do not tolerate traffic very well, whereas grasses, chicory and plantain tolerate traffic welll. Catch crops with a high risk of regrowth such as white clover and timothy-grass, need to be incorporated into the soil early and maybe more than once and are not suited for systems with reduced tillage, whereas vetch, oilseed rape and fodder radish have very low regrowth after mulching in spring
