Linseed Fertilizer Calculator
Work out the exact urea, DAP and MOP for linseed (flax) from the recommended 50:25:25 kg/ha N-P₂O₅-K₂O dose, adjusted to your soil test and field size.
Irrigated: half N + full P, K basal, rest at first irrigation. In utera (relay in rice), broadcast the small dose at rice harvest — the crop lives on residual fertility and moisture.
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 Linseed Fertilizer Calculator to convert the official linseed (flax) 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 Linseed Fertilizer Calculator
Much of India's linseed is utera — relay-broadcast into standing rice — where a token 30:15:0 at rice harvest is all the feeding the crop ever gets. This calculator starts from the published recommendation of 50:25:25 kg/ha N-P₂O₅-K₂O (irrigated) or 30:15:0 kg/ha N-P₂O₅-K₂O (rainfed / utera), 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 Linseed Fertilizer Calculator
- 1Enter your field area and pick the unit (hectare, acre or bigha).
- 2Choose the growing condition (irrigated / rainfed / utera) 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 Linseed Fertilizer Calculator?
- ✓Official package-of-practices dose for linseed (flax) — 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 linseed (flax)?+
Irrigated: 50 kg N, 25 kg P₂O₅ and 25 kg K₂O per hectare; Rainfed / utera: 30 kg N, 15 kg P₂O₅ and 0 kg K₂O per hectare. Irrigated: half N + full P, K basal, rest at first irrigation.
How do I fertilize utera linseed?+
Broadcast about 30:15:0 kg/ha right after the rice is cut, while the soil is still moist. Banding isn't possible in utera, so timing onto moisture is everything.
Is linseed a heavy feeder?+
No — even irrigated linseed peaks around 50:25:25. Its value crops (oil and fibre) both suffer from rank growth, so resist extra urea.
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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