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Table 1 Typical composition of micronutrients in maize and grass silage from Bavaria (Germany)

From: Agricultural biogas production in Germany - from practice to microbiology basics

  Co Cu Fe Mn Mo Na Ni Se W Zn
Maize silage mean value (n = 16) 0.026 1.83 22.8 4.35 0.18 16.6 0.15 0.01 0.007 5.95
Min to max 0.004 to 0.11 1.20 to 2.90 8.09 to 40.4 1.66 to 11.2 0.030 to 0.31 2.73 to 30.5 0.04 to 0.39 0.003 to 0.018 0.003 to 0.01 1.66 to 10.8
Grass silage mean value (n = 16) 0.14 3.27 354 37.7 1.54 145.8 0.98 0.08 0.18 15.9
Min to max 0.038 to 0.59 1.80 to 4.56 39.1 to 1,919 6.80 to 157 0.25 to 2.57 66.4 to 295 0.09 to 2.55 0.01 to 0.26 0.05 to 0.43 9.05 to 35.9
  1. Data in mg · kgFM-1; values in italics are alarming with respect to levels reported in [21, 31]; data are compiled from [30, 31, 34] and unpublished results.