Varieties of Potato:
Seed Rate:
| Seed Diameter | Spacing | Seed Rate |
| 2.5cm x 3.0cm | 45cm x 15cm | 10 qt/ha |
| 4.0cm x 5.0cm | 50cm x 20cm | 25 qt/ha |
| 2.5cm x 4.0cm | 60cm x 25cm | 20 qt/ha |
Growth period and water requirement :
| Stage of Growth | |||||
| Parameter | Initial Stage | Crop Development | Mid-Season | Late Season | Growth Period |
| Duration Days | 25 | 30 | 30-45 | 30 | 115-130 |
| ETm (mm) | 10% | 30% | 50% | 10% | 500-700 mm |
| Kc | 0.4-0.5 | 0.7-0.8 | 1.05- 1.20 | 0.85-0.95 | - |
Drip system recommendation from Premier Range:
| Crop Spacing (m) |
Soil Type | Product Selection Premier Range | Lateral Spacing (m) |
Emitter Spacing (m) |
Emitter Discharge (1ph) |
Emitters per Plant |
|---|---|---|---|---|---|---|
| [(0.60+0.60) 0.15] | Clay | Drip-In/ In-Dri | 1.20 | 0.40 | 2lph | n/a |
| [(0.60+0.50) 0.15 | Loam | Drip-In/ In-Dri | 1.10 | 0.40 | 2lph | n/a |
| [(0.50+0.50) 0.15 | Sandy | Drip-In/ In-Dri | 1.00 | 0.30 | 2lph | n/a |
Note: For irrigating potato micro-sprinklers/ impact sprinklers (RAYN/ M-110ST) can also be used
Fertilizer Recommendation :
The quantity of fertilizer to be applied per ha. is as given below:
| Irrigated | Rain Fed | |
|---|---|---|
| Seed Tubers | 1500-2000 kg | 1500-2000 kg |
| Organic Manure | 25 t | 25 t |
| Fertilizers | ||
| Nitrogen | 125 kg | 75 kg |
| Phosphorus | 100 kg | 75 kg |
| Potassium | 125 kg | 100 kg |
Glossary
Kc = Crop co-efficient.
ETo = Reference evapo-transpiration (mm)
ETm = Maximum evapo-transpiration = Kc x ETo (mm)
ETa = Evapo-transpiration actual (mm)
Ya = Actual yield
Ym = Maximum yield
**
Note: The advice and descriptions given herein are for general information only. Premier Irrigation cannot be held responsible for its use or application