Most hoe drills with row spacings of 12 inches or more should go through the stubble if straw has been uniformly spread. Narrower spaced hoe drills may have problems clearing trash, so you may have to add coulters. Double disk drills can have narrower spacing and still function properly. No-till drills will plant with no problems. Plant when the straw is dry.
Wet straw is harder to cut and tends to plug the planter easier.
Proso Millet Varieties and Yields Variety selection is important. Since the soil will be cooler, proso millet will be slower to germinate. Choose medium to early maturing proso millet varieties. Choose varieties with good straw strength. Rise has shown potential for use in the ecofallow system.