Research Article
Investigating the Effects of Various Soil Amendments on Forages Production in the Field
Table 7
Soil analyses after harvesting.
| Soil-amendment | pH | EC | Soil salinity class | Available K (mg/kg) | Olsen P (mg/kg) |
| Control-60% | 8.0 | 0.53 | Nonsaline | 26.9 | 0.6 | Control-100% | 7.9 | 0.40 | Nonsaline | 26.30 | 0.4 |
| Commercial compost | 5 tons/ha | 8.31 | 1.40 | Nonsaline | 77.54 | 16.4 | 7.5 tons/ha | 8.38 | 2.33 | Slightly saline | 78.01 | 22.6 | 10 tons/ha | 8.65 | 2.78 | Slightly saline | 80.34 | 30.7 |
| Compost | 5 tons/ha | 8.24 | 1.36 | Nonsaline | 92.43 | 30.34 | 7.5 tons/ha | 8.32 | 2.01 | Slightly saline | 95.01 | 44.08 | 10 tons/ha | 8.41 | 2.12 | Slightly saline | 97.0 | 45.09 |
| Biochar | 5 tons/ha | 8.11 | 1.8 | Nonsaline | 78.12 | 24.78 | 7.5 tons/ha | 8.0 | 2.3 | Slightly saline | 82.37 | 29.87 | 10 tons/ha | 8.33 | 2.7 | Slightly saline | 85.17 | 32.74 |
| Soil conditioner | 5 tons/ha | 8.01 | 1.63 | Nonsaline | 67.43 | 22.54 | 7.5 tons/ha | 8.23 | 1.76 | Nonsaline | 70.22 | 28.65 | 10 tons/ha | 8.40 | 2.11 | Slightly saline | 74.01 | 32.78 |
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