Hoffman, Lindsey Effects of nitrogen and potassium on wear mechanisms in perennial ryegrass : 1. wear tolerance and recovery / L. Hoffman ; J. S. Ebdon ; W. M. Dest ... [et al.] - 10 páginas Subjects--Topical Terms: GramineasGramineas ForrajerasLolium PerenneNitrogenoPotasioToleranciaCesped