Garlic Fertilizer Calculator
Work out the exact urea, DAP and MOP for garlic from the recommended 100:50:50 kg/ha N-P₂O₅-K₂O dose, adjusted to your soil test and field size.
Half N + full P, K basal; remaining N in two splits at 30 and 45 days after planting. Stop N before bulbing — late N gives sprouted, soft bulbs in storage. Sulphur helps pungency, as in onion.
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 Garlic Fertilizer Calculator to convert the official garlic 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 Garlic Fertilizer Calculator
Garlic follows the onion rulebook — sulphur for pungency, early-only nitrogen — but with cloves planted clonally, uniform feeding matters more for even bulb grading. This calculator starts from the published recommendation of 100:50:50 kg/ha N-P₂O₅-K₂O (rabi irrigated), 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 Garlic Fertilizer Calculator
- 1Enter your field area and pick the unit (hectare, acre or bigha).
- 2Choose the growing condition 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 Garlic Fertilizer Calculator?
- ✓Official package-of-practices dose for garlic — 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 garlic?+
Rabi irrigated: 100 kg N, 50 kg P₂O₅ and 50 kg K₂O per hectare. Half N + full P, K basal; remaining N in two splits at 30 and 45 days after planting.
When must I stop fertilizing garlic?+
All nitrogen should be applied within 45–50 days of planting. N during bulb development delays maturity and produces loose, poorly-curing bulbs that sprout in storage.
Does sulphur increase garlic pungency?+
Yes — allicin is a sulphur compound. 25–30 kg S/ha (about 160 kg gypsum) measurably improves pungency, bulb weight and storability on S-deficient soils.
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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