Varieties of Cotton:
- Hybrids - Hybrid-4, Savitri, Godavari, Varalaxmi, Jk Hy-11, RHY-25
- Hirsutum - Khandwa-2, SRT-1, Vishnu, Laxmi, L-147
- Herbaceum - Digvijaya, Sujay
- Arboreum - Sanjay, Maljari, Ak-235, G-22, F-46
Growth period and water requirement :
| Stage of Growth | |||||
| Parameter | Initial Stage | Crop Development | Mid-Season | Late Season | Growth Period |
| Duration days | 20-30 | 40-50 | 50-60 | 40 | 150-180 |
| ETm ( mm ) | 10% | 30% | 50% | 10% | 700-1300 |
| Kc | 0.4 -0.5 | 0.7-0.8 | 1.05- 1.25 | 0.65-0.9 | - |
Drip System recommendation from Premier range:
| Crop Spacing (m) |
Soil Type | Product Selection Premier Range | Lateral Spacing (m) |
Emitter Spacing (m) |
Emitter Discharge (1ph) |
Emitter per Plant |
|---|---|---|---|---|---|---|
| [(0.75+1.05) 0.60] | Clay | Drip-InTM/In-Drip | 1.80 | 0.60 | 2lph/4lph | n/a |
| [(0.50+1.00) 0.60] | Loam | Drip-InTM/In-Drip | 1.50 | 0.40 | 2lph/4lph | n/a |
| [(0.50+1.00) 0.60 | Sandy | Drip-InTM/In-Drip | 1.50 | 0.40 | 2lph/4lph | n/a |
Fertilizer Recommendation :
| Cotton variety | N-P-K dose kg/ha |
|---|---|
| Local varieties | 50-25-25 (rain fed) |
| 80-40-40 (irrigated) | |
| Hybrids | 100-50-50 (rain fed) |
| 160-80-80 (irrigated) | |
| P and K should be applied at sowing N applied in 3 splits at sowing, squaring and flowering. |
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
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Note: The advice and descriptions given herein are for general information only. Premier Irrigation cannot be held responsible for its use or application