Banana Fertilizer Calculator
Per-plant banana fertilizer planner — age-based doses up to 150:50:250 g N-P₂O₅-K₂O per plant/year converted into urea, DAP and MOP for your whole orchard.
Split into 4–6 doses from month 2 to flowering; stop N at bunch emergence but continue K through bunch filling. Banana is the most potassium-hungry of all fruit crops.
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 Banana Fertilizer Calculator to turn the per-plant recommendation into total urea, DAP and MOP for the whole block — young and bearing plants included — without a single hand calculation.
About Banana Fertilizer Calculator
A banana plant exports a whole bunch in under a year, and two-thirds of what it removes is potassium — the 300 g K2O/plant line is the backbone of this schedule. The calculator uses the age-laddered recommendation — 200:60:300 g N-P₂O₅-K₂O per plant/year (plant crop); 150:50:250 g N-P₂O₅-K₂O per plant/year (ratoon) — multiplies it across your plant 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 Banana Fertilizer Calculator
- 1Enter how many plants you have and choose their age/bearing stage.
- 2Read the total urea, DAP and MOP for the year, plus the per-plant nutrient breakdown.
- 3Follow the split note for when and where to apply each dose.
Why use Banana Fertilizer Calculator?
- ✓Published per-plant dose ladder for banana, 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 banana plant need per year?+
Plant crop: 200 g N, 60 g P₂O₅ and 300 g K₂O per plant per year; Ratoon: 150 g N, 50 g P₂O₅ and 250 g K₂O per plant per year. Split into 4–6 doses from month 2 to flowering; stop N at bunch emergence but continue K through bunch filling.
Why does banana need so much potassium?+
The bunch itself is a potassium sink — K builds finger size, pulp filling and shelf life. Packages allocate up to 300 g K2O per plant, more than N and P combined.
How should banana fertilizer be split over the year?+
Four to six equal doses from establishment to flowering, then K-only through bunch development. A single large dose burns roots and leaches away in the wet season.
How do I convert the per-plant dose into urea, DAP and MOP?+
The tool multiplies the per-plant 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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