Research Article
Soil Quality and Pomelo Productivity as Affected by Chicken Manure and Cow Dung
Table 1
Initial physicochemical properties of the experimental soils.
| Parameters | Unit | CT I | CT II | CT III | 0–20 cm | 20–50 cm | 0–20 cm | 20–50 cm | 0–20 cm | 20–50 cm |
| pHH2O | | 5.19 | 5.07 | 4.34 | 4.83 | 4.68 | 5.01 | EC | mS cm−1 | 0.77 | 0.70 | 0.79 | 0.65 | 0.71 | 0.62 | Available phosphorus | mg kg−1 | 18.9 | 22.5 | 25.8 | 19.6 | 32.1 | 16.5 | Total nitrogen | g kg−1 | 0.91 | 1.32 | 1.61 | 1.05 | 1.52 | 1.96 | Soil organic matter | % | 2.87 | 2.83 | 3.56 | 3.35 | 3.37 | 3.45 |
| Exchangeable cations | | | | | | | | Na+ | meq 100g−1 | 0.26 | 0.31 | 0.06 | 0.13 | 0.06 | 0.10 | K+ | 0.24 | 0.12 | 0.40 | 0.22 | 0.20 | 0.16 | Ca2+ | 5.73 | 6.52 | 5.80 | 6.39 | 6.90 | 6.83 | Mg2+ | 1.94 | 2.22 | 2.91 | 3.16 | 2.79 | 2.66 | CEC | meq 100g−1 | 19.9 | 19.3 | 20.6 | 21.0 | 21.5 | 20.4 | Bulk density | g cm−3 | 1.25 | 1.27 | 1.22 | 1.20 | 1.18 | 1.11 |
| Soil texture | | | | | | | | Sand | % | 1.00 | 1.50 | 0.70 | 1.80 | 1.90 | 0.40 | Silt | 46.5 | 40.2 | 48.6 | 35.1 | 44.9 | 50.5 | Clay | 52.5 | 58.3 | 50.7 | 63.1 | 53.2 | 49.1 |
| Soil textural class | | Silty clay | Silty clay | Silty clay | Clay | Silty clay | Silty clay |
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