Climate, Soil, and Planting Management
Arecanut is a tropical palm that flourishes within temperatures of 15°C to 38°C and annual rainfall exceeding 1,500 mm. Prolonged drought and extreme cold restrict flowering and nut retention.
- Soil Requirements: Well-drained deep clay loam, red laterite, or alluvial soils rich in organic matter with a pH between 5.5 and 7.5; waterlogged sites must be avoided.
- Selected Varieties: High-yielding selections include Mangala, Sumangala, Sreemangala, Mohitnagar, and Kahikuchi, propagated via certified mother palm seed nuts.
- Field Spacing: Plant 12 to 18 month old healthy seedlings in pits measuring 90 cm x 90 cm x 90 cm spaced at 2.7 meters x 2.7 meters (approximately 1,300 to 1,400 palms per hectare).
- Intercropping and Shading: Provide shade to young seedlings using banana, gliricidia, or sesbania; mature plantations support profitable multi-tier intercrops such as black pepper, cocoa, nutmeg, and cardamom.
Irrigation, Nutrition, and Pest Management
Arecanut palms have an extensive but shallow root network, requiring regular moisture throughout the dry post-monsoon months and balanced nutrient supply.
- Drip Irrigation: Micro-irrigation delivers water directly to the root zone, saving 35 to 45 percent water compared to basin flooding.
- Nutrient Application: Supply farmyard manure or green leaf compost along with split applications of nitrogen, phosphorus, and potassium before and after monsoon rains.
- Koleroga (Fruit Rot) Management: Caused by Phytophthora meadii during heavy monsoon spells; protect developing bunches by spraying one percent Bordeaux mixture before monsoon onset and tying protective polythene covers.
- Yellow Leaf Disease: Manage through balanced soil nutrition, organic mulching, micronutrient application, and adequate drainage.
Harvesting and Processing into Commercial Betel Nut
Arecanut palms start bearing commercial bunches from the fourth or fifth year after planting and remain productive for over thirty to thirty-five years.
- Tender Nut (Kalipak): Bunches are harvested when nuts are tender green (around 6 to 7 months old) for boiling, colouring, and drying into processed supari.
- Ripe Nut (Chali): Mature orange-red nuts are harvested fully ripe (at 9 to 10 months), sundried for 40 to 45 days, and dehusked to produce whole Chali arecanut.
- Post-Harvest Drying: Sun-dry on clean concrete drying yards or mechanical hot-air dryers to reduce nut moisture below 10 percent to prevent fungal mould.
Official source
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Directorate of Arecanut and Spices Development (DASD) ↗Related on KisanPe
Common questions
How many years does an arecanut (supari) palm take to bear fruit?
Under proper agronomic care and irrigation, an arecanut palm begins flowering and bearing fruit in 4 to 5 years after field planting.
Which Indian states lead in supari (arecanut) production?
Karnataka is the largest producer of arecanut in India, followed by Kerala, Assam, Meghalaya, and Tamil Nadu.
What crops can be intercropped inside an arecanut plantation?
Farmers frequently intercrop black pepper on the palm trunks, cocoa, coffee, banana, cardamom, ginger, and turmeric in the understory.
General guidance, not personal advice. For your farm, ask your local Krishi Vigyan Kendra or agriculture officer.
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