National Land Suitability Framework · Kingdom of Saudi Arabia · Crop Element Ranges
Crop Element Range Values
Each crop's full set of suitability elements, with the range value for every one — the optimal band that gives S1, and the absolute band beyond which the crop fails (N). Between optimal and absolute the class steps down through S2 and S3. Values are the FAO ECOCROP profiles for the seven Saudi-priority crops.
Two bands
optimal · absolute
Source
FAO ECOCROP · verified
How to read. A hectare's reading inside the optimal band scores S1 for that element; between optimal and absolute it drops to S2–S3; beyond the absolute band it is N (not suitable). The class for the whole crop is set by its single worst element. The letter beside each element is its suitability subclass.
Date palm ★Phoenix dactylifera
Irrigated orchard
| Element | Optimal (S1) | Absolute (S2–N) |
|---|
| cTemperature (°C) |
26–45 |
10–52 |
| cRainfall (mm/y) |
200–300 |
100–400 |
| nSoil pH |
6.5–8 |
6–8.5 |
| sSoil Depth |
deep (>>150 cm) |
shallow (20-50 cm) |
| sTexture |
medium, light |
heavy, medium, light, wide |
| nFertility |
high |
moderate |
| zSalinity |
low (<4 dS/m) |
high (>10 dS/m) |
| wDrainage |
well (dry spells) |
well (dry spells), excessive (dry/moderately dry) |
| cLight |
very bright |
very bright |
| cFrost — rest | -15 °C |
| cFrost — early | -4 °C |
| cCrop cycle | 365–365 days |
| cAltitude max | 1500 m |
Grape ★Vitis vinifera
Irrigated open-field vineyard
| Element | Optimal (S1) | Absolute (S2–N) |
|---|
| cTemperature (°C) |
18–30 |
10–38 |
| cRainfall (mm/y) |
700–850 |
400–1200 |
| nSoil pH |
5.5–7.5 |
4.5–8.5 |
| sSoil Depth |
deep (>>150 cm) |
shallow (20-50 cm) |
| sTexture |
medium, organic |
heavy, medium, light |
| nFertility |
moderate |
low |
| zSalinity |
low (<4 dS/m) |
medium (4-10 dS/m) |
| wDrainage |
well (dry spells) |
well (dry spells) |
| cLight |
very bright |
very bright / clear skies |
| cFrost — rest | -20 °C |
| cFrost — early | -3 °C |
| cCrop cycle | 160–270 days |
| cAltitude max | 2000 m |
Rhodes grass ★Chloris gayana
Irrigated cut-and-carry forage
| Element | Optimal (S1) | Absolute (S2–N) |
|---|
| cTemperature (°C) |
20–37 |
5–50 |
| cRainfall (mm/y) |
600–1500 |
550–2000 |
| nSoil pH |
4.5–7 |
4–8.5 |
| sSoil Depth |
deep (>>150 cm) |
shallow (20-50 cm) |
| sTexture |
heavy, medium |
heavy, medium, light |
| nFertility |
high |
moderate |
| zSalinity |
low (<4 dS/m) |
high (>10 dS/m) |
| wDrainage |
well (dry spells) |
poorly; well; excessive |
| cLight |
very bright |
very bright / clear skies |
| cFrost — rest | -10 °C |
| cFrost — early | -1 °C |
| cCrop cycle | 150–210 days |
| cAltitude max | 2200 m |
Pomegranate ★Punica granatum
Irrigated orchard
| Element | Optimal (S1) | Absolute (S2–N) |
|---|
| cTemperature (°C) |
23–32 |
8–40 |
| cRainfall (mm/y) |
900–1200 |
400–4200 |
| nSoil pH |
6.5–7.5 |
5.8–8.5 |
| sSoil Depth |
deep (>>150 cm) |
medium (50-150 cm) |
| sTexture |
heavy, medium |
heavy, medium, light |
| nFertility |
high |
low |
| zSalinity |
low (<4 dS/m) |
medium (4-10 dS/m) |
| wDrainage |
well (dry spells) |
poorly; well; excessive |
| cLight |
very bright |
very bright / clear skies |
| cFrost — rest | -10 °C |
| cFrost — early | 0 °C |
| cCrop cycle | 180–365 days |
| cAltitude max | 1600 m |
Fig ★Ficus carica
Irrigated orchard
| Element | Optimal (S1) | Absolute (S2–N) |
|---|
| cTemperature (°C) |
16–26 |
4–38 |
| cRainfall (mm/y) |
700–1500 |
300–2700 |
| nSoil pH |
6–7 |
4.3–8.6 |
| sSoil Depth |
deep (>>150 cm) |
medium (50-150 cm) |
| sTexture |
medium |
heavy, medium, light |
| nFertility |
moderate |
low |
| zSalinity |
low (<4 dS/m) |
medium (4-10 dS/m) |
| wDrainage |
well (dry spells) |
well; excessive |
| cLight |
very bright / clear skies |
very bright / light shade |
| cFrost — rest | -12 °C |
| cFrost — early | -1 °C |
| cCrop cycle | 120–300 days |
| cAltitude max | 1200 m |
Apricot ★Prunus armeniaca
Highland irrigated orchard
| Element | Optimal (S1) | Absolute (S2–N) |
|---|
| cTemperature (°C) |
14–35 |
7–40 |
| cRainfall (mm/y) |
900–1300 |
800–1470 |
| nSoil pH |
6.5–7 |
5–8 |
| sSoil Depth |
deep (>>150 cm) |
medium (50-150 cm) |
| sTexture |
medium |
heavy, medium, light |
| nFertility |
moderate |
moderate |
| zSalinity |
low (<4 dS/m) |
low (<4 dS/m) |
| wDrainage |
well (dry spells) |
well (dry spells) |
| cLight |
very bright |
very bright / clear skies |
| cFrost — rest | -5 °C |
| cFrost — early | -1 °C |
| cCrop cycle | 180–240 days |
| cAltitude max | 2000 m |
Almond ★Prunus amygdalus
Highland irrigated orchard
| Element | Optimal (S1) | Absolute (S2–N) |
|---|
| cTemperature (°C) |
12–35 |
10–40 |
| cRainfall (mm/y) |
600–900 |
250–1500 |
| nSoil pH |
6.5–7 |
5.5–8 |
| sSoil Depth |
medium (50-150 cm) |
shallow (20-50 cm) |
| sTexture |
medium |
medium, light |
| nFertility |
moderate |
moderate |
| zSalinity |
low (<4 dS/m) |
low (<4 dS/m) |
| wDrainage |
well (dry spells) |
well; excessive |
| cLight |
very bright |
very bright |
| cFrost — rest | -5 °C |
| cFrost — early | -1 °C |
| cCrop cycle | 150–240 days |
| cAltitude max | — |
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