Acacia mangium based agri-silvicultural system

Tree Component	Acacia mangium
Boundary/ Block/ in field	In field
Spacing	6 x 2 m²
Pit size	0.5 x 0.5 x 0.5m³
Any other management requirement	Basal: DAP-50g, MOP-50 g pit^-1 Chloropyriphos-100 g pit^-1 Top dressing: Urea- 50 g pit^-1 (post monsoon up to 4 years) Pruning: maintained up to 1/3rd plant height.
Intercrop	Guinea/Thin Napier
Planting time	June
Seed rate	2.5 kg ha^-1 (40,000 slips)
Fertilizer	FYM: 5 t ha^-1, 50:40:40 kg N, P₂O₅, K₂O ha^-1 as basal and 40 kg N ha^-1 after each cut.
Any other management requirement	Spacing: 50cm x 50 cm After planting, first cut at 70-80 days, and subsequent cutting at 45 days interval.
Return / Outcome	Fodder Grass: Guinea/Thin Napier 18-20 t ha^-1 year^-1 with yield recovery of 80-85 % and BCR: 2.17 Acacia mangium Tree (at end of 12 years): Av. 5.0 cft of timber and 0.4 t firewood per tree (Rs 4000-4500/tree). (from 1.0 ha out of 833 trees 600 trees are expected to be survived till harvest)
Any other information	It is suitable, in addition to supplying fodder and timber, for unbunded uplands and waste land. It is capable of improving soil physical condition and soil productivity.