Arecanut Fertilizer Calculator
Per-palm arecanut fertilizer planner — age-based doses up to 100:40:140 g N-P₂O₅-K₂O per palm/year converted into urea, DAP and MOP for your whole orchard.
Two splits (pre- and post-monsoon) in a small basin, with 12 kg compost/green leaf per palm. In the mixed Malnad gardens, the palms share the basin with pepper vines — feed both, count both.
Indicative planning figures based on published research averages. Local soil tests, varieties and weather change actual requirements — confirm with your agronomist or extension officer.
Orchardists use the free Arecanut Fertilizer Calculator to turn the per-palm recommendation into total urea, DAP and MOP for the whole block — young and bearing palms included — without a single hand calculation.
About Arecanut Fertilizer Calculator
Arecanut's modest 100:40:140 g dose belies a high-value crop — and in the classic Malnad multi-storey garden the same basin often feeds a pepper vine climbing the palm. The calculator uses the age-laddered recommendation — 100:40:140 g N-P₂O₅-K₂O per palm/year (bearing palm) — multiplies it across your palm count, and converts the totals into urea (46% N), DAP (18-46-0) and MOP (0-0-60) quantities for the season.
How to use Arecanut Fertilizer Calculator
- 1Enter how many palms you have and choose their age/bearing stage.
- 2Read the total urea, DAP and MOP for the year, plus the per-palm nutrient breakdown.
- 3Follow the split note for when and where to apply each dose.
Why use Arecanut Fertilizer Calculator?
- ✓Published per-palm dose ladder for arecanut, from planting to full bearing
- ✓Whole-orchard totals — no per-tree mental math
- ✓Automatic conversion to urea, DAP and MOP with the DAP nitrogen credit handled
- ✓Free, instant and fully in-browser — works offline in the orchard
Frequently asked questions
How much fertilizer does a arecanut palm need per year?+
Bearing palm: 100 g N, 40 g P₂O₅ and 140 g K₂O per palm per year. Two splits (pre- and post-monsoon) in a small basin, with 12 kg compost/green leaf per palm.
How is fertilizer applied in a mixed arecanut–pepper garden?+
The palm gets its 100:40:140 g in the basin, and each pepper vine on the palm gets its own ~100:40:140 g share — they are separate plants with separate doses sharing one wet basin.
Why is compost emphasized for arecanut?+
Areca roots are shallow and concentrated; 10–12 kg of compost/green leaf per palm keeps that thin feeding zone moist, buffered and biologically active through the heavy-rain months.
How do I convert the per-palm dose into urea, DAP and MOP?+
The tool multiplies the per-palm grams across your count, then sizes DAP to cover P₂O₅ (crediting its 18% N), urea for the remaining N, and MOP for K₂O — the same arithmetic an agronomist would do by hand.
Is this calculator free and private?+
Yes — free, no sign-up, and everything runs in your browser, so your orchard data never leaves the device and the tool works offline.
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