Acacia mangium based agri-silvicultural system

Tree Component	Acacia mangium
Boundary/ Block/ in field	In field
Spacing	8 x 2 m²
Pit size	0.5 x 0.5 x 0.5 m³
Any other management requirement	Basal: DAP-50 g, MOP- 50 g pit^-1 Chloropyriphos-100g pit^-1 Top dressing: Urea-50g pit^-1 (post monsoon up to 4 years) Pruning: maintained up to 1/3rd plant height.
Intercrop	Sesame (1-4 years)
Planting time	June-July, Spacing-30cm x 10 cm
Seed rate	10kg ha^-1
Fertilizer	FYM: 5t ha^-1; Fertiliser dose- 30:20:20 kg ha^-1 Basal: 50% N, full of P₂O₅ and K₂O, rest 50% N at 1^st hoeing and weeding
Any other management requirement	Turmeric/Arrowroot (5-8 years) Turmeric: Spacing- 30cm x 25cm Seed rate– 2t ha^-1, FYM– 10t ha^-1 Planting size- 20 to 25g sprouted bits. Planting time- May N: P₂O₅:K₂O - 60:30:90 kg ha^-1 50%N at 45 DAP, Full P₂O₅ & 50% K₂O at planting. Rest 50% N and 50% K₂O at 90 DAP. Mulching-Twice (45 & 90 DAP) Arrowroot: Spacing FYM- 5 t/ha, Fertiliser Dose- 100:60:60 kg ha^-1 Azotobacter and PSB -5 kg ha^-1 Pineapple(9-12 years): Planting time: July-Aug, Spacing:75cm x 60 cm Pit: 10 cm deep holes FYM: 5t ha^-1 Basal: 12g N(6 split), 4g P₂O₅ and 12g K₂O (2 split)
Return / Outcome	1-4 years: Sesame: 0.6-0.7 t ha^-1year^-1 with yield recovery of 80-85 %, BCR: 1.62 5-8 years: Arrowroot: 5.5-6.5 t ha^-1 with yield recovery of 85-90 %, BCR: 2.07 / Turmeric: 6-7 t ha^-1 year^-1 with yield recovery of 85-90 %, BCR: 2.24 Colocasia: 6.5-7.0 t ha^-1year^-1 with yield recovery of 85-90 %, BCR: 1.96 9-12 years: Pineapple: 9-10 t ha^-1year^-1 with yield recovery of more than 100 %, Net return 1.0 lakhs/ha/year and BCR: 2.45 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 625 trees 500 trees are expected to be survived till harvest)
Any other information	This agro-forestry system ensures food security besides providing fuel wood and timber helps in maintaining better soil health.