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An economically based evaluation index for perennial and short-term ryegrasses in New Zealand dairy farm systems

Chapman, D. F.; Bryant, J. R.; Olayemi, M. E.; Edwards, Grant; Thorrold, B. S.; McMillan, W. H.; Kerr, G. A.; Judson, G.; Cookson, T.; Moorhead, A. J. E.; Norriss, M. (John Wiley & Sons Ltd, Inc., 2017-03)

Grazed pastures based on ryegrass species provide most of the feed for dairy cattle in New Zealand. There are many cultivars of perennial (Lolium perenne), annual and Italian (L. multiflorum), and hybrid (L. boucheanum) ...