Table 1 The comparison between the Hab and Iab orchards in Jeju Island
From: An agricultural digital twin for mandarins demonstrates the potential for individualized agriculture
| Â | Â | Hab (western region) | Iab (eastern region) |
|---|---|---|---|
Location | Latitude (°N) | 33.28 | 32.33 |
Longitude (°E) | 126.37 | 126.74 | |
Soil Component | Available phosphate (mg/kg) | 205 | 180 |
Exchangeable potassium (cmolc/kg) | 0.94 | 0.49 | |
Exchangeable calcium (cmolc/kg) | 7.4 | 10.7 | |
Exchangeable magnesium (cmolc/kg) | 1.9 | 3.7 | |
Soil acidity (1:5) | 5.4 | 6.3 | |
Organic matter (g/kg) | 128 | 134 | |
Electrical conductivity (dS/m) | 2.64 | 1.39 | |
Agricultural Practice | Pruning (month) | Mar | Mar |
Fertilization (month) | Mar, May | May, Aug | |
Spraying (month) | Apr | May | |
Mulching (month) | May | Jun | |
Thinning (month) | Jul | Sep | |
Fruit Quality | Mean (SD) of sugar content (°Brix) | Mid-Oct: 10.4 (1.31) Late Oct: 11.2 (1.29) Early Nov: 11.4 (1.39) | Mid-Oct: 11.7 (1.97) Late Oct: 11.0 (1.19) Early Nov: 12.1 (1.17) |
Mean (SD) of fruit size (mm) | Mid-Oct: 46.0 (3.15) Late Oct: 46.0 (3.10) Early Nov: 56.7 (5.17) | Mid-Oct: 60.9 (8.82) Late Oct: 53.1 (3.65) Early Nov: 47.5 (6.04) | |
Prime grade (%) | Mid-Oct: 0.0 Late Oct: 0.0 Early Nov: 39.0 | Mid-Oct: 21.3 Late Oct: 33.7 Early Nov: 35.7 | |
Unsalable (%) | Mid-Oct: 84.3 Late Oct: 81.7 Early Nov: 27.0 | Mid-Oct: 42.3 Late Oct: 35.7 Early Nov: 28.7 |
