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Table 1 Physical and chemical properties of the sunflower soils

From: Comparative study of microbial structure and functional profile of sunflower rhizosphere grown in two fields

Sample SHR SHB ITR ITB
OM (%) 1.98 ± 0.0bc 2.11 ± 0.1b 1.78 ± 0.1c 2.81 ± 0.0a
N-NO3 (mg/kg) 12.31 ± 2.8ab 13.27 ± 0.2a 5.54 ± 2.5bc 4.30 ± 0.0 c
N-NH4 (mg/kg) 4.93 ± 0.2c 4.59 ± 0.1c 6.67 ± 0.1b 11.79 ± 0.1a
pH 6.61 ± 0.1a 6.69 ± 0.0 a 6.02 ± 0.1b 6.05 ± 0.0 b
Res.(ohm) 1270 ± 3.0b 1230 ± 30.0b 2275 ± 155.0a 2020 ± 20.0a
P3− (mg/kg) 68.50 ± 8.8a 81.29 ± 2.6a 14.09 ± 1.2b 79.84 ± 3.0a
Ca2+ (mg/kg) 560.50 ± 81.0ab 659.50 ± 14.5a 451.50 ± 3.5b 651.00 ± 17.0a
Mg2+ (mg/kg) 141.00 ± 3.0a 138.50 ± 3.5a 152.00 ± 8.0a 135.50 ± 3.5a
K+ (mg/kg) 161.50 ± 0.5a 169.00 ± 3.0a 119.00 ± 7.0b 167.00 ± 1.0a
Na+ (mg/kg) 78.70 ± 1.9a 71.40 ± 3.4a 71.95 ± 2.4a 70.35 ± 3.4a
C (%) 0.46 ± 0.0b 0.56 ± 0.1b 0.46 ± 0.0b 1.06 ± 0.1a
N3− (%) 0.05 ± 0.0b 0.05 ± 0.0b 0.05 ± 0.0b 0.09 ± 0.0a
Sand (%) 78.00 ± 0.0b 78.00 ± 0.0b 79.00 ± 1.0b 84.00 ± 0.0a
Silt (%) 2.00 ± 0.0 a 3.00 ± 1.0 a 2.00 ± 0.0 a 3.00 ± 1.0 a
Clay (%) 20.00 ± 0.0a 19.00 ± 1.0a 19.00 ± 1.0a 13.00 ± 1.0b
  1. Legend: SHR Sheila rhizosphere soil; SHB Sheila bulk soil; ITR Itsoseng rhizosphere soil; ITB- Itsoseng bulk soil. Number of replicates (n) = 3. Data represent mean ± SE. Mean values having the same alphabets are considered not statistically significant (P ≥ 0.05) following Duncan’s multiple range test