Lettuce vs Onion
Both are Vegetable. Each axis is a percentile across all 538 crops — 80 means higher than four-fifths of the table. Where an axis is missing, the crop genuinely is not measured that way.
Lettuce
Onion
| Measure | Lettuce | Onion |
|---|---|---|
| Season | Rabi | Rabi · Kharif |
| Sowing window | Sep–Nov | Oct–Nov, Jun–Jul |
| Days to harvest | 60–80 | 120–150 |
| Spacing | 30 × 30 cm | 15 × 10 cm |
| Soil pH | 6.0–7.0 | 6.0–7.5 |
| Water | 250–400 | 350–550 |
| Temperature °C | 13–20 | 13–25 |
| Seed rate | 400–500 g | 8–10 kg |
| Yield | 15–20 t | 25–35 t |
| Watch for | Aphid, downy mildew | Thrips, purple blotch, basal rot |