CO 2, CO 3, CO (Tp) 4, CO (Tp ) 5, MVD 1, H 165, H 226, Sree Visakham
(H.1687), Sree Sahya (H.2304), Sree Prakash (S. 856), Sree Vijaya, Sree Jaya, SreeRekha, Sree Prabha, Sree Athulya, Sree Raksha (CMD resistant), Yethapur 1 (YTP 1)
Soil –
Well drained soil preferably red lateritic loam with a pH range of 5.5-7.0 is ideal.
Climate-
Irrigated
75 x 75 cm (17,777 setts) and 90 x 90 cm (12,345 setts).
Rainfed
60 x 60 cm (27,777 setts)
Under Kanyakumari conditions
90 x 90 cm (12,345 setts
60 x 90cm in paired row system.
Stage | Crop stage | Duration in days | Fertilizer grade | Total Fertilizer (kg/ha) | Nutrient applied | % of requirement | ||||
N | P | K | N | P | K | |||||
1 | Planting to crop establishment | 20 | 19:19:19 +MN 13.0:45 0-0-50 | 23.57 34.67 7.87 | 4.48 4.50 – | 4.48 – – | 4.48 15.60 3.93 | 10.00 | 5.00 | 10.00 |
Subtotal | 8.98 | 4.48 | 24.01 | |||||||
2 | Vegetative stage | 30 | 12:61:0 13:0:45 Urea | 11.40 105.33 26.80 | 1.34 13.69 12.33 | 6.80 – – | – 47.39 – | 30.00 | 7.50 | 20.00 |
Subtotal | 27.36 | 6.80 | 47.39 | |||||||
3 | Tuber formation stage | 35 | 12:61:0 0:0:50 Urea | 11.40 144.00 55.73 | 1.34 – 25.64 | 6.80 – – | – 72.00 – | 30.00 | 7.50 | 30.00 |
Subtotal | 26.98 | 6.80 | 72.00 | |||||||
4 | Tuber development stage | 35 | 19:19:19 + MN 0-0-50 Urea | 23.57 182.67 48.87 | 4.48 – 22.48 | 4.48 – – | 4.48 92.34 – | 30.00 | 5.00 | 40.00 |
Subtotal | 26.96 | 4.48 | 96.82 | |||||||
Total | 90.28 (or) 90 | 22.56 (or) 22.50 | 240.22 (or) 240 | 100 | 25 | 100 |
75% RD of Phosphorus applied as superphosphate 421.88 kg/ha.
1. 19:19:19 = 47. kg / ha.
2. 13:0:45 = 140kg/ha.
3. 12:61:0 = 23kg/ha
4. 0:0:50 = 335kg / ha
5. Urea = 132 kg / ha.
1.Spiralling whitefly: Aleurodicus disperses
Symptoms of damage:
Management:
2.Whitefly: Bemisia tabaci
|
4.Cassava mealy bug : Paracoccus marginatus
Symptoms of damage:
Management:
|
1.Mosaic
Management-
2.Cercospora Leaf spot
3.Tuber rot
9 to 11 months
Irrigated : 40 – 50 t/ha
Rainfed : 20 – 25 t/ha
Crop Growing districts Salem, Namakkal, Erode, Dharmapuri, Villupuram
Major markets in Tamil Nadu Salem, Dharmapuri, Erode