Silvicultural Characteristics and Ecological Benefits
Albizia lebbeck is an umbrella-shaped deciduous tree reaching heights of 15 to 25 meters, capable of thriving across arid, semi-arid, and sub-humid tropical climates.
Its root system establishes mutualistic associations with Rhizobium bacteria, fixing atmospheric nitrogen and improving poor, degraded soils.
- Valuable hardwood timber: Produces strong, dense heartwood with rich brown walnut-like grain used for premium furniture, carving, and agricultural implements.
- Nutritious livestock fodder: Foliage and tender pods contain 18 to 22% crude protein, serving as nutritious green fodder for cattle and goats during summer dry spells.
- Drought & salt tolerance: Extremely resilient to prolonged drought once established, tolerating alkaline soils and rocky ground.
- Soil conservation: Extensive lateral root networks stabilize soil against erosion on degraded slopes and field bunds.
Nursery Raising, Field Planting, and Management
Vagai is propagated easily from seed, benefiting from hot water scarification before sowing into nursery polypots.
Planting along field boundaries or in wide agroforestry alleys provides shelterbelt protection without excessively competing with intercrops.
- Seed pre-treatment: Soak seeds in warm water (80 degrees Celsius) for 2 to 3 minutes and steep overnight to break seed coat dormancy.
- Field spacing: Boundary planting uses 3 to 4 meter linear spacing; block timber plantations use 4m x 4m spacing.
- Pruning & lopping: Prune lower side branches annually during the first 3 to 4 years to encourage a clean, straight central timber bole.
- Harvest rotation: Matures for timber harvest in 15 to 20 years, yielding valuable structural timber.
Official source
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Institute of Forest Genetics and Tree Breeding ↗Related on KisanPe
Common questions
What is the common Hindi and English name for the Vagai tree?
In Hindi it is known as Siris (सिरिस) and in English as East Indian Walnut or Lebbeck tree (Albizia lebbeck).
Can Vagai tree leaves be fed to dairy cattle and goats?
Yes, the leaves and young pods are rich in digestible crude protein and serve as excellent supplementary livestock fodder during dry seasons.
How long does a Vagai tree take to produce harvestable timber?
It typically reaches commercial timber maturity in 15 to 20 years, producing durable hardwood suitable for furniture and construction.
General guidance, not personal advice. For your farm, ask your local Krishi Vigyan Kendra or agriculture officer.
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