Varieties of Groundnut:
Three distinct groups i.e. Pish, Valencia and Virginia are popular varieties. A seed rate of 110 to 150 kg/ha is required. The spacing of groundnut is 30 x10 cm or 30x15cm.
Growth period and water requirement :
| Stage of Growth | |||||
| Parameter | Initial Stage | Crop Development | Mid-Season | Late Season | Growth Period |
| Duration Days | 25-35 | 35-45 | 30-50 | 20-30 | 130-140 |
| ETm (mm) | 10% | 30% | 50% | 10% | 500-700 |
| Kc | 0.4-0.5 | 0.7-0.8 | 0.95-1.1 | 0.55-0.80 | - |
Sprinkler Irrigation recommendation from Premier Range:
As groundnut is a closely spaced crop, sprinkler irrigation is ideal for irrigating groundnut. The recommended models of sprinklers are M110ST & RAYNTM normally spaced at 12m x 12m or M150ST sprinklers spaced at 18m x 18m.
The sprinkler application rates should not exceed the safe intake rate of the soil to avoid run-off and wastage of water. Refer to the table below for basic intake rates of soils:
| S No. |
Soil Type | Good Soils with High Organic Content |
Poor Soils with Low Organic Content |
|---|---|---|---|
| 1. | Coarse sand | 20 - 25 mm/hr | 12.5 mm/hr |
| 2. | Fine sand | 12.5 - 20 mm/hr | 9.00 mm/hr |
| 3. | Fine sandy loams | 12.50 mm/hr | 7.50 mm/h |
| 4. | Silt loams | 10.00 mm/hr | 6.85 mm/hr |
| 5. | Clay loams | 7.50 mm/hr | 6.35 mm/hr |
Fertilizer Recommendation :
| Irrigation Method | N-P-K dose kg/ha |
|---|---|
| Rain Fed groundnut | 25-50-25 |
| Irrigated groundnut | 25-75-40 |
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