Table 1.
Soil physical and chemical analyses. Physical and chemical characterization of the agricultural and the native soil used in this study to grow the common bean plants for the rhizobacterial characterization
| Unit | Item | Agricultural | Native | |
|---|---|---|---|---|
| % | Texture | Clay | 8 | 24 |
| Silt | 30 | 12 | ||
| Sand | 62 | 64 | ||
| Classification | Clay loam | Sandy clay loam | ||
| dSm−1 | pH | 5.8 | 4.7 | |
| % | Organic matter | 17.9 | 11.6 | |
| cmolc kg−1 | Al | ND | 3.00 | |
| Ca | 15.0 | 0.3 | ||
| Mg | 2.9 | 1.0 | ||
| K | 0.6 | 0.4 | ||
| Na | 0.03 | 0.03 | ||
| CEC | 18.50 | 4.80 | ||
| mg kg−1 | P | 56 | 3 | |
| S | 8 | 8 | ||
| Fe | 50 | 620 | ||
| Mn | 2 | 2 | ||
| Cu | 3 | 3 | ||
| Zn | 7 | 4 | ||
| B | 0.24 | 0.21 | ||
Methods: Texture: Bouyoucos; pH: water (1:1); organic matter: Walkley Black; Al: KCl 1M; Ca, Mg, K, Na: ammonium acetate 1M; CEC: cation exchange sum; S: monocalcium phosphate 0.008M; Fe, Mn, Cu, Zn: Olsen-EDTA; B: hot water; P: Bray II. Unit consideration: ND not detectable, dSm−1 = mmho cm−1, cmolc kg−1 = meq/100 g soil, mg kg−1 = ppm