Oil palm Fertilizer Calculator
Per-palm oil palm fertilizer planner — age-based doses up to 1200:600:2700 g N-P₂O₅-K₂O per palm/year converted into urea, DAP and MOP for your whole orchard.
Split into 3–4 doses across the year under drip/microjet in the weeded circle. Oil palm out-eats even coconut — 2.7 kg K2O per palm per year is the price of 20+ tonnes of fruit bunches.
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 Oil palm 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 Oil palm Fertilizer Calculator
Oil palm is the heaviest feeder in tropical agriculture: a mature palm pushing 20+ t/ha of fresh fruit bunches runs through 1200:600:2700 g a year, with potassium doing the bunch-filling. The calculator uses the age-laddered recommendation — 400:200:400 g N-P₂O₅-K₂O per palm/year (year 1–3 (immature)); 1200:600:2700 g N-P₂O₅-K₂O per palm/year (mature (4+)) — 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 Oil palm 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 Oil palm Fertilizer Calculator?
- ✓Published per-palm dose ladder for oil palm, 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 oil palm palm need per year?+
Year 1–3 (immature): 400 g N, 200 g P₂O₅ and 400 g K₂O per palm per year; Mature (4+): 1200 g N, 600 g P₂O₅ and 2700 g K₂O per palm per year. Split into 3–4 doses across the year under drip/microjet in the weeded circle.
Why does oil palm need more fertilizer than any other plantation crop?+
It yields more harvested biomass than any of them — every tonne of fruit bunches exports roughly 3 kg N and 4 kg K2O, so a 20 t/ha stand must be fed like the factory it is.
How is fertilizer applied under drip-irrigated oil palm in India?+
Fertigation in monthly pulses, or 3–4 soil splits in the weeded circle where feeder roots concentrate; India's largely irrigated plantings respond strongly to K-led fertigation.
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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