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Low Intensity Harvest Management of Reed Canarygrass

^a Dep. of Crop and Soil Sci., 503 Bradfield Hall, Cornell Univ., Ithaca, NY 14853
^b Dep. of Animal Sci., Cornell Univ., Ithaca, NY 14853
^c USDA-ARS, U.S. Dairy Forage Research Center, Madison, WI 53706-1108

View larger version (30K): [in a new window]   Fig. 1. Annual yield of DM and K uptake of reed canarygrass as influenced by N and K fertilization rate. A linear regression slope (b) ± SE is provided for each N fertilization rate. Data are means across 10 site–year combinations and four replicates.

View larger version (25K): [in a new window]   Fig. 2. Soil test K following fall harvest, as influenced by N and K fertilization rate. A linear regression slope (b) ± SE is provided for each N fertilization rate. Data are means across six site–year combinations and four replicates.

View larger version (20K): [in a new window]   Fig. 3. Soil test K following fall harvest, as influenced by N and K fertilization rate and year. (a) 0 kg N ha-1, (b) 112 kg N ha-1, and (c) 224 kg N ha-1. Error bars are standard errors of two sites and four replicates.

View larger version (28K): [in a new window]   Fig. 4. Potassium concentration of reed canarygrass forage at (a) spring and (b) fall harvests, as influenced by N and K fertilization rate. A linear regression slope (b) ± SE is provided for each N fertilization rate. Data are means across 10 site–year combinations and four replicates.