Tea Fertilizer Calculator
Work out the exact urea, DAP and MOP for tea from the recommended 240:80:120 kg/ha N-P₂O₅-K₂O dose, adjusted to your soil test and field size.
Split N into 4–6 doses across flush periods; tea is plucked every week, so nitrogen drip-feeds the flush. Keep soil pH 4.5–5.5 — tea is the rare crop fertilized to stay acidic.
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 Tea Fertilizer Calculator to convert the official tea 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 Tea Fertilizer Calculator
Tea is plucked 30+ times a year, every flush built from nitrogen — mature-garden N scales with yield (roughly 10–12 kg N per 100 kg made tea) and arrives in many small monsoon-dodging doses. This calculator starts from the published recommendation of 240:80:120 kg/ha N-P₂O₅-K₂O (mature (yield-based, ~2000 kg/ha)) or 180:60:90 kg/ha N-P₂O₅-K₂O (young tea (pre-plucking)), 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 Tea Fertilizer Calculator
- 1Enter your field area and pick the unit (hectare, acre or bigha).
- 2Choose the growing condition (mature (yield-based, ~2000 kg/ha) / young tea (pre-plucking)) 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 Tea Fertilizer Calculator?
- ✓Official package-of-practices dose for tea — 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 tea?+
Mature (yield-based, ~2000 kg/ha): 240 kg N, 80 kg P₂O₅ and 120 kg K₂O per hectare; Young tea (pre-plucking): 180 kg N, 60 kg P₂O₅ and 90 kg K₂O per hectare. Split N into 4–6 doses across flush periods; tea is plucked every week, so nitrogen drip-feeds the flush.
How is the tea nitrogen dose calculated from yield?+
Plantation advisories scale N at roughly 10–12 kg per 100 kg of made tea: a 2,000 kg/ha garden therefore gets 200–240 kg N, split into 4–6 applications across the flushing season.
Why is tea soil kept acidic instead of limed?+
Tea roots are adapted to pH 4.5–5.5; liming towards neutral induces deficiencies and root disorders. Ammonium-based fertilizers helpfully maintain that acidity.
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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