1)Punjab Sweet Potato-21:
Other state varieties:
1) Varsha:
2) Konkan Ashwini:
3) Sree Arun:
4)Sree Kanaka:
5)Sree Varun:
Improved varieties:
H-41, H-42, Co 3, Co CIP 1, Sree Vardhini, Sree Rethna, Sree Bhadra, Sree Nandini, Kanjanghad, Gouri, Sankar and Kiran.
Soil –
Climate –
Time of sowing:
For optimum yield, tubers should be sown in nursery beds in the month of January to February and the optimum time for planting vines in the field is in the month of April to July.
Seed rate:
Nutrients Value (kg/acre)
NITROGEN | K20 | P2O5 |
30 | 20 | 25 |
Fertilizer Requirement (kg/acre)
CAN | SSP | MOP |
125 | 155 | 35 |
1) Sweet potato weevils :
Symptoms-
They damage the plant by feeding themselves on the epidermis of vines and leaves.
Treatment:
To control weevils spray of 200 ml Rogor @150 ltr water per acre.
2) Tuber Moth :
Symptoms-
Management-
3) Aphid :
Symptoms-
Management-
4.Tortoise beetles: Aspidiomorpha miliaris
Symptoms of damage:
Management:
|
1) Black scurf : Monilochaetes infuscans
Symptoms
2) Early blight :
Symptoms-
Management-
3) Common scab :
Symptoms-
Management-
4) Black Rot: Ceratocystis fimbriata
Symptoms:
Management
5.Rhizophus soft rot: Rhizopus stolonifer
Symptoms
Management
6.Bacterial soft rot: Erwinia chrysanthemi
Symptoms
Management
7.Charcoal Rot: Macrophomina phaseolina
Symptoms
Management
20-25 t/ha of tubers in 110 – 120 days.