Article in the November 15, 2016 issue of Progressive Forage. Issue 10.
http://www.progressiveforage.com/forage-production/management/are-you-an-ecologist
“Yield does not increase in a vacuum in an agricultural system” Mark Boggess, article author.
Also, article by Kelli Boylen, “New meadow fescue pasture blend” includes good discussion of stockpiling versus hay harvest.