Spinach Fertilizer Calculator
Work out the exact urea, DAP and MOP for spinach (palak) from the recommended 100:40:40 kg/ha N-P₂O₅-K₂O dose, adjusted to your soil test and field size.
Half N + full P, K basal; then ~20 kg N/ha after each cutting to regrow the canopy. Stop N a week before each cut to keep leaf nitrate within safe levels.
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 Spinach Fertilizer Calculator to convert the official spinach (palak) 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 Spinach Fertilizer Calculator
Multi-cut palak is essentially a nitrogen-regrowth machine — each harvest removes the canopy, and a measured urea sprinkle after every cut rebuilds it without spiking leaf nitrate. This calculator starts from the published recommendation of 100:40:40 kg/ha N-P₂O₅-K₂O (multi-cut palak), 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 Spinach 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 Spinach Fertilizer Calculator?
- ✓Official package-of-practices dose for spinach (palak) — 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 spinach (palak)?+
Multi-cut palak: 100 kg N, 40 kg P₂O₅ and 40 kg K₂O per hectare. Half N + full P, K basal; then ~20 kg N/ha after each cutting to regrow the canopy.
How much fertilizer after each palak cutting?+
About 20 kg N/ha (≈44 kg urea) right after each cut, watered in. P and K from the basal dose carry the whole multi-cut cycle.
Is nitrate accumulation in spinach a real concern?+
Yes for heavily-fed leafy greens. Keep individual N doses modest, stop N several days before cutting, and harvest in the afternoon when leaf nitrate is lowest.
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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