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Table 1 Effect of magnetic field treated soil on soybean nodular and nitrogen content

From: Study on the effect of magnetic field treatment of newly isolated Paenibacillus sp.

Treatment Bacterial dry weight Effective number of root nodule Total nitrogen
Magnetic field (mT) Time (min) Weight (g dry wt pl−1) Percentage change (%) Amount (No./plant) Percentage change (%) Content (mg/g) Percentage change (%)
Control (CK) 0.06h - 7 ± 1.23 - 3.23 ± 0.12 -
100 5 0.20c 233 24 ± 3.47 243 3.46 ± 0.13 7.12
10 0.19d 217 18 ± 1.76 157. 3.51 ± 0.12 8.67
20 0.17e 183 17 ± 1.84 143 3.35 ± 0.11 3.72
30 0.15f 150 16 ± 1.34 129 3.25 ± 0.12 0.62
300 5 0.27a 350 37 ± 1.63 429 4.33 ± 0.17 34.06
10 0.26b 333 28 ± 2.95 300 4.55 ± 0.15 40.87
20 0.15f 150 24 ± 2.58 243 3.58 ± 0.13 10.84
30 0.09g 50 13 ± 1.72 86 3.51 ± 0.16 8.67
500 5 0.04j −33 7 ± 1.25 0 3.34 ± 0.13 3.41
10 0.06h 0 7 ± 1.13 0 3.25 ± 0.12 0.62
20 0.05i −17 6 ± 1.13 −14 3.17 ± 0.11 −1.86
30 0.05i −17 7 ± 1.12 0 3.14 ± 0.13 −2.79
  1. The different letters show significant difference (P < 0.05).