Table 1.
Physico-chemical characteristics of the soil in the research area (Source: Regional Research Station of BARI).
| Soil properties | Value |
||||
|---|---|---|---|---|---|
| Location | |||||
| Gazipur | Bogura | Jamalpur | Jashore | Chattogram | |
| Texture | Silty clay loam | Sandy loam | Sandy loam | Sandy loam | Silty loam |
| pH (H2O) | 5.73 | 6.23 | 6.48 | 6.61 | 4.58 |
| Organic matter (%) | 1.75 | 3.50 | 1.42 | 2.50 | 1.25 |
| Total nitrogen (%) | 0.05 | 0.10 | 0.08 | 0.20 | 0.08 |
| Available phosphorus (ppm) | 35 | 28 | 12.85 | 0.41 | 24 |
| Exchangeable Ca (meq/100 g) | 1.30 | 0.16 | 2.50 | 0.12 | 1.05 |
| Exchangeable K (meq/100 g) | 0.71 | 0.60 | 0.09 | 0.25 | 0.54 |
| Exchangeable Mg (meq/100 g) | 0.39 | 0.10 | 0.08 | 0.21 | 0.25 |
| Exchangeable Na (meq/100 g) | 1.22 | 1.52 | 0.31 | 0.52 | 1.01 |
| Exchangeable Fe (meq/100 g) | 31 | 28 | 35.42 | 25 | 19 |
| Exchangeable Mn (meq/100 g) | 7.2 | 6.32 | 15.23 | 5.25 | 4.25 |
| Exchangeable Cu (meq/100 g) | 0.51 | 0.23 | 1.02 | 0.56 | 0.42 |
| Exchangeable Zn (meq/100 g) | 0.80 | 0.74 | 1.53 | 1.20 | 0.57 |
| Exchangeable acidity (mg/kg) | 0.35 | 0.19 | 0.10 | 0.14 | 0.24 |