Cauliflower Fertilizer Calculator
Work out the exact urea, DAP and MOP for cauliflower from the recommended 120:80:60 kg/ha N-P₂O₅-K₂O dose, adjusted to your soil test and field size.
Half N + full P, K + 10 kg/ha borax basal; remaining N at 25 and 45 days after transplanting. Boron is non-negotiable — deficiency causes hollow stem and browned curds.
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 Cauliflower Fertilizer Calculator to convert the official cauliflower 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 Cauliflower Fertilizer Calculator
Cauliflower is the classic boron-indicator crop: without 10 kg/ha borax the curd browns and the stem hollows, so the calculator includes the borax line alongside NPK. This calculator starts from the published recommendation of 120:80:60 kg/ha N-P₂O₅-K₂O (mid/late season) or 100:60:50 kg/ha N-P₂O₅-K₂O (early season), 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 Cauliflower Fertilizer Calculator
- 1Enter your field area and pick the unit (hectare, acre or bigha).
- 2Choose the growing condition (mid/late season / early season) 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 Cauliflower Fertilizer Calculator?
- ✓Official package-of-practices dose for cauliflower — 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 cauliflower?+
Mid/late season: 120 kg N, 80 kg P₂O₅ and 60 kg K₂O per hectare; Early season: 100 kg N, 60 kg P₂O₅ and 50 kg K₂O per hectare. Half N + full P, K + 10 kg/ha borax basal; remaining N at 25 and 45 days after transplanting.
What causes brown or hollow curds in cauliflower?+
Boron deficiency. Apply 10 kg/ha borax with the basal fertilizer, or spray 0.2–0.3% borax solution at curd initiation if the deficiency shows mid-season.
Can I use the same dose for early and late cauliflower?+
No — early varieties make smaller curds in hotter weather and use about 100:60:50 kg/ha, while mid/late season crops with bigger frames justify 120:80:60.
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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