Research Article
Modelling the Effects of Soil Conditions on Olive Productivity in Mediterranean Hilly Areas
Table 1
Analytical methods used to determine soil physical and chemical properties.
| Element | Method and analysis equipment | Reference |
| Soil bulk density | Undisturbed clod method | Blake (1965) [24] | Soil organic matter | Walkley-Black method | Walkley and Black (1934) [25] | Nitrogen | Kjeldahl wet digestion | Bremner and Mulvaney (1982) [26] | Available phosphorus | Olsen colorimetry | Olsen and Sommers (1982) [27] | Extractable potassium | Extractable potassium, Flame Photometer 409 | Richards (1954) [28] | Extractable boron | Spectrocolorimetry | Bingham (1982) [29] | Iron, copper | DTPA test. Atomic Absorption Spectrometry | Lindsay and Norvell (1978) [30] |
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