my experience of any rye grass is that it looks more than it isyears ago, all our silage ground would have been IRG, with massive yields, over the last 10/12 years, or so, yields just don't happen, why, not sure.
But, it's a big big change, from IRG to 'old' grasses, that we do now, prg replacing irg, and bringing back those old 'weed' grasses, Perhaps one reason can be explained, by the fact that we used to drill at 13kg/acre, and now up to 18kg. We now have to back track to 13/14kg, because we use smaller seed, just think, 18kg of timothy and w clover, now that would be A+ for groundcover.
always seems so open, no real density, not very good ground cover.
well that's the impression I have got from years of baling our own and other folks stuff