The botanical name of Jack plant is Artocarpus heterophyllus; Moraceae
Varieties: Velipala, Singapore, Hybrid jack, Panruti selection, Thanjavur jack, Burliar 1, PLR 1 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.
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. Apply Lindane 1.3% @ 100 g/pit and mix it thoroughly. Plant preferably grafts during June – December at 8 x 8 m spacing.
Irrigation: Once in a week till the plant is established. Thereafter irrigate as and when necessary.
Manures and fertilizers: To be applied in two splits during May - June and September - October
Plant protection against Pest
Spittle bug: Spray methyl parathion 50 EC 2ml/lit. or methyl demeton 25 EC @ 2ml/lit.
Phosphamidon 40 SL 2 ml/lit or Dust methyl parathion 2 D or quinalphos dust 1.5 D.
Protection against Diseases
Rhizopus rot: Spray 1 % Bordeaux mixture or Copper oxychloride 2.5 g/lit. three sprays at 15 days interval.
Harvest: Yield commences from 5th year in grafts and 8th year in seedling trees. Harvest during March-July.
Yield: 30-40 t/ha.
