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Fig. 1. Cumulative forage dry matter yields as affected by forage crop and fertility treatment. The term CONT is control; NREC and NHIGH are inorganic N fertilizer at recommended and high rates, respectively; DM is dairy manure; and DMC, SSLC, and CSC are compost produced from dairy manure, sewage sludge, and corn silage, respectively. Units in treatment title refer to annual application rates in kg total N ha–1 yr–1. Within each crop, columns with different letters are significantly different at the 0.05 probability level.
