Barley Fertilizer Calculator
Work out the exact urea, DAP and MOP for barley from the recommended 60:30:20 kg/ha N-P₂O₅-K₂O dose, adjusted to your soil test and field size.
Half N + full P, K basal; rest N at first irrigation (30–35 days). For malting barley keep N at the lower edge — high grain protein is a defect, not a bonus, for malt buyers.
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 Barley Fertilizer Calculator to convert the official barley 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 Barley Fertilizer Calculator
Barley needs roughly half of wheat's nitrogen, and malting contracts actually pay for restraint: grain protein above ~11.5% gets rejected, so the dose is deliberately conservative. This calculator starts from the published recommendation of 60:30:20 kg/ha N-P₂O₅-K₂O (irrigated) or 40:20:0 kg/ha N-P₂O₅-K₂O (rainfed), 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 Barley Fertilizer Calculator
- 1Enter your field area and pick the unit (hectare, acre or bigha).
- 2Choose the growing condition (irrigated / rainfed) 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 Barley Fertilizer Calculator?
- ✓Official package-of-practices dose for barley — 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 barley?+
Irrigated: 60 kg N, 30 kg P₂O₅ and 20 kg K₂O per hectare; Rainfed: 40 kg N, 20 kg P₂O₅ and 0 kg K₂O per hectare. Half N + full P, K basal; rest N at first irrigation (30–35 days).
Why should malting barley get less nitrogen?+
Maltsters want plump grain under ~11.5% protein. Heavy or late N pushes protein up and gets the lot rejected to feed grade, so stay at or below 60 kg N/ha and never top-dress late.
Can barley grow on soils too poor for wheat?+
Yes — barley tolerates salinity and low fertility better than wheat, which is why the rainfed plan is just 40:20:0 drilled at sowing on marginal 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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