Research Article
Soil Nutrient Balance and Soil Fertility Status under the Influence of Fertilization in Maize-Wheat Cropping System in Nepal
Table 1
Physicochemical properties of the experimental plot before field experiment at Khumaltar, Lalitpur, Nepal, 2019.
| | Parameters | Soil test values | Method followed |
| | Textural class | Silty clay loam | Hydrometer method [11] and texture classification (USDA texture triangle) | | Sand (%) | 17.3 | | Silt (%) | 57.1 | | Clay (%) | 25.6 | | Bulk density (gm cm−3) | 1.39 | Core method [12] | | Soil pH | 5.98 | 1 : 2 soil water suspension [13] | | Organic matter (g kg−1) | 11.4 | Walkely and Black [14] | | Total N (kg ha−1) | 2831.8 | Micro-Kjeldahl [15] | | Available P2O5 (kg ha−1) | 478.7 | Modified Olsen’s [16] | | Available K2O (kg ha−1) | 160.6 | Ammonium acetate [13] | | Available Ca (mg kg−1) | 984 | EDTA titration [17] | | Available Mg (mg kg−1) | 21.6 | EDTA titration [17] | | Available S (mg kg−1) | 1.48 | Turbidimetric [18] | | Available B (mg kg−1) | 0.81 | Hot water method [19] | | Available Fe (mg kg−1) | 107.3 | DTPA [20] | | Available Zn (mg kg−1) | 1.96 | DTPA [20] | | Available Cu (mg kg−1) | 3.08 | DTPA [20] | | Available Mn (mg kg−1) | 14.2 | DTPA [20] |
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