Chilli Fertilizer Calculator
Work out the exact urea, DAP and MOP for chilli from the recommended 120:60:60 kg/ha N-P₂O₅-K₂O dose, adjusted to your soil test and field size.
Half N + full P and K basal; remaining N in two top-dressings at 30 and 60 days after transplanting, timed with flowering flushes.
Indicative planning figures based on published research averages. Local soil tests, varieties and weather change actual requirements — confirm with your agronomist or extension officer.
Farmers and agronomists use the free Chilli Fertilizer Calculator to convert the official chilli recommendation into exact urea, DAP and MOP quantities for their own field in seconds — no agronomy tables, no spreadsheet, and it works offline in the field.
About Chilli Fertilizer Calculator
Chilli flowers and sets fruit in repeated flushes over months, so nitrogen is rationed into flushes — a single heavy dose causes flower drop and soft, disease-prone growth. This calculator starts from the published recommendation of 120:60:60 kg/ha N-P₂O₅-K₂O (irrigated) or 60:30:30 kg/ha N-P₂O₅-K₂O (rainfed), adjusts it ±25% for your soil-test N, P and K ratings, scales it to your field area in hectares, acres or bigha, and converts the nutrients into real products — urea (46% N), DAP (18-46-0) and MOP (0-0-60) — including the number of bags to buy.
How to use Chilli Fertilizer Calculator
- 1Enter your field area and pick the unit (hectare, acre or bigha).
- 2Choose the growing condition (irrigated / rainfed) and your soil-test ratings for N, P and K — leave Medium if you have no recent soil test.
- 3Read off the urea, DAP and MOP quantities and bag counts, then follow the split-application note for timing.
Why use Chilli Fertilizer Calculator?
- ✓Official package-of-practices dose for chilli — not a generic NPK guess
- ✓Soil-test Low/Medium/High ratings adjust the dose ±25% automatically
- ✓Converts nutrients to urea, DAP and MOP bags, with the DAP nitrogen credit handled correctly
- ✓Works in hectares, acres and bigha — and runs fully in your browser, even offline in the field
Frequently asked questions
What is the recommended fertilizer dose for chilli?+
Irrigated: 120 kg N, 60 kg P₂O₅ and 60 kg K₂O per hectare; Rainfed: 60 kg N, 30 kg P₂O₅ and 30 kg K₂O per hectare. Half N + full P and K basal; remaining N in two top-dressings at 30 and 60 days after transplanting, timed with flowering flushes..
Why is my chilli dropping flowers after fertilizing?+
Sudden heavy nitrogen, moisture stress and high temperature are the usual causes. Split N into smaller doses matched to flowering flushes and keep soil moisture even through fruit set.
What is the fertilizer dose for rainfed chilli?+
Rainfed chilli gets roughly half the irrigated dose — about 60:30:30 kg/ha N-P2O5-K2O — because yield potential is moisture-limited and excess N without water burns the crop.
How does the calculator convert NPK into urea, DAP and MOP?+
DAP (46% P₂O₅) is sized to cover the phosphorus need; the nitrogen it also carries (18% N) is credited against the N requirement, and urea (46% N) supplies the balance. MOP (60% K₂O) covers potassium. Bag counts use 45 kg urea and 50 kg DAP/MOP bags.
Is this tool free, and does my data leave the device?+
It is completely free with no sign-up, and all calculation happens in your browser — nothing you enter is uploaded, so it also works offline in the field.
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