Yes it has, but the best results we have had this spring is probably a field we sprayed off late March when the ground was damp and we drilled it with spelt on Easter saturday for the #ourfield project. The moisture was beautifully preserved in the soil and the seedlings are all emerging nicely as we speak. The crops in the photos above went into dryer soil as the covers had sucked more moisture out before we drilled and so didn't have so much to play with. We were banking on getting more rain and we didn't want to spray off before drilling in case it came very wet and we'd lose the evapo-transpiration from the cover, which would help it dry. With the benefit of hindsight that wasn't altogether necessary.Has the cover kept in effectively what moisture is there?
Interestingly, there was a bare patch where we'd washed out glyphosate from the sprayer mid-winter time and that was wetter (as no cover to suck it out) and the spring seed came through seemingly much better, but it has been black with rooks and jackdaws ever since and they have fished a lot of the seedlings out. Where there's more cover, it seems to confuse the corvids. Time will tell what worked best.