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Table 2 Total nitrogen response to perennial warm-season grass monocultures and mixtures on a Tomek silt loam in eastern Nebraska after 6 years of management

From: Root biomass and soil carbon response to growing perennial grasses for bioenergy

Treatments Total nitrogen (Mg ha−1)
  Depths (cm)
  0–10 10–20 20–40 40–60 60–80 80–100
Grass mixture 1 3.03 ns 2.67 2.01 1.56 1.02 1.6
Grass mixture 2 2.41 2.11 1.85 1.41 1.05 0.84
Shawnee 2.64 2.46 1.93 1.21 1.15 0.75
Kanlow N1 2.63 2.48 2.25 1.45 1.16 1.27
Miscanthus (Mxg) 2.63 1.95 1.99 1.41 1.03 0.81
Chief 2.49 2.6 2.09 1.77 1.23 1.55
LSD 0.05 0.58 0.69 0.52 0.47 0.49 0.89
  1. Perennial warm-season grass monocultures [switchgrass (cv. Shawnee, Kanlow N1), indiangrass (Chief) and Mxg] and grass mixture 1[big bluestem (Goldmine) + indiangrass (Warrior) + switchgrass (Shawnee)] and grass mixture 2 [big bluestem (Bonanza) + indiangrass (Scout) + switchgrass (Shawnee)]. Means among grass treatments were not significantly different (ns)