Jack:
Artocarpus heterophyllus; Moraceae
Varieties:
Velipala, Singapore, Hybrid jack, Panruti selection, Thanjavur jack, Burliar 1, PLR 1 and PLR (J) 2 and PPI 1.
Soil and Climate:
Deep well drained soil is necessary. Soil pH around 5.5 at the time of planting is desirable. Otherwise treat the soil with 1% Aluminium sulphate in the pit to reduce the pH. Comes up well in the plains and upto an elevation of 1200 m.
Propagation
Soft wood grafting: Large scale propagation of jack can be done by cleft grafting during July - August on 4 month old seedling rootstock.
Preparation of field and planting
Dig pits of 1 m x 1 m x 1 m. Fill up the pits with top soil mixed with 10 Kg of FYM and 1 Kg of neem cake per pit. Plant preferably grafts during June – December at 8 x 8 m spacing.
Irrigation
Once in a week till the plant gets established. Thereafter irrigation is given as and when necessary.
Manures and fertilizers
The manures and fertilizers should be applied in two splits during May - June and September - October.
Pest
Disease
Artocarpus heterophyllus; Moraceae
Varieties:
Velipala, Singapore, Hybrid jack, Panruti selection, Thanjavur jack, Burliar 1, PLR 1 and PLR (J) 2 and PPI 1.
Soil and Climate:
Deep well drained soil is necessary. Soil pH around 5.5 at the time of planting is desirable. Otherwise treat the soil with 1% Aluminium sulphate in the pit to reduce the pH. Comes up well in the plains and upto an elevation of 1200 m.
Propagation
Soft wood grafting: Large scale propagation of jack can be done by cleft grafting during July - August on 4 month old seedling rootstock.
Preparation of field and planting
Dig pits of 1 m x 1 m x 1 m. Fill up the pits with top soil mixed with 10 Kg of FYM and 1 Kg of neem cake per pit. Plant preferably grafts during June – December at 8 x 8 m spacing.
Irrigation
Once in a week till the plant gets established. Thereafter irrigation is given as and when necessary.
Manures and fertilizers
The manures and fertilizers should be applied in two splits during May - June and September - October.
Manures & Fertilizers
|
1 year old
|
Annual Increase
|
6th year and above
|
FYM
|
10.000
|
10.000
|
50.000
|
N
|
0.150
|
0.150
|
0.750
|
P
|
0.080
|
0.080
|
0.4000
|
K
|
0.100
|
0.100
|
0.500
|
Pest
- Fruit borer
- Spittle bug
- Rhizopus rot
Harvest
The yield commences from 5th year in grafts and 8th year in seedling trees. Harvest is done during March-July.
The yield commences from 5th year in grafts and 8th year in seedling trees. Harvest is done during March-July.
Yield
The crop yields about 30-40 t/ha.
The crop yields about 30-40 t/ha.
