Research Article
Evaluation of Physicochemical Properties of Sandy-Textured Soils under Smallholder Agricultural Land Use Practices in Sarawak, East Malaysia
Table 7
Partial nutrient budgeting comparing fertilizer input, crop uptake, and soils (0–40 cm) for P and K in each oil palm land use.
| Oil palm farmlands | Age (years) | P | K | Fertilizers input (kg·ha−1) | Stored in crops (kg·ha−1) | Stored in soils 0–10 cm (kg·ha−1) | Stored in soils 10–40 cm (kg·ha−1) | Fertilizers input (kg·ha−1) | Stored in crops (kg·ha−1) | Stored in soils 0–10 cm (kg·ha−1) | Stored in soils 10–40 cm (kg·ha−1) |
| 1 | 1 | 32 | 1 | 12 | 37 | 21 | 16 | 79 | 9 | 2 | 1 | 32 | 1 | 13 | 34 | 21 | 16 | 91 | 8 | 3 | 1 | 73 | 1 | 7 | 37 | 47 | 16 | 33 | 40 | 4 | 2 | 23 | 10 | 12 | 28 | 15 | 158 | 64 | 8 | 5 | 2 | 24 | 10 | 20 | 37 | 15 | 158 | 38 | 31 | 6 | 2 | 24 | 10 | 19 | 39 | 15 | 158 | 37 | 29 | 7 | 2 | 55 | 8 | 145 | 20 | 46 | 135 | 53 | 7 | 8 | 2 | 91 | 10 | 9 | 20 | 67 | 158 | 23 | 26 | 9 | 3 | 85 | 10 | 9 | 28 | 62 | 201 | 39 | 28 |
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