Fertilizer Dose Calculator

Pick the crop and land. For example, 1 bigha of Boro needs 40 kg urea, 15 kg TSP and 17 kg MoP.

Which paddy
Unit

Total fertilizer needed

40 kg

Urea
40 kg
TSP
15 kg
MoP
17 kg
Gypsum
10 kg
Zinc
1.5 kg

1 bigha needs 40 kg kg of urea (plus the other fertilizers).

General guidance (from BRRI/BARC research). Soil tests change doses — ask your local agriculture officer.

How this was calculated
  1. Per-bigha dose × 1 bigha = Boro

How to use

  1. Pick Aman or Boro paddy.
  2. Enter land in bigha or decimals.
  3. See all five fertilizer doses.

Dose table (per bigha)

Fertilizer Aman Boro
Urea 22 kg 40 kg
TSP 9 kg 15 kg
MoP 12 kg 17 kg
Gypsum 9 kg 10 kg
Zinc 1 kg 1.5 kg

Examples

2 bigha Boro: 80 kg urea (≈ 1.6 bags), 30 kg TSP, 34 kg MoP.

66 decimals (2 bigha) Aman: 44 kg urea, 18 kg TSP.

More: how to apply

Mix everything except urea into the soil at final ploughing. Top-dress urea in splits — one dose washes away. Urea super granules (USG) cut the need and raise yield. Reduce chemicals when farmyard manure or compost is used.

Frequently asked questions

How much fertilizer for 1 bigha of Boro?

Generally 40 kg urea, 15 kg TSP, 17 kg MoP, 10 kg gypsum and 1.5 kg zinc.

Does Aman need less?

Yes: 22 kg urea, 9 kg TSP, 12 kg MoP, 9 kg gypsum and 1 kg zinc per bigha.

In how many splits is urea applied?

Three splits for Boro (20, 40, 60 days after transplanting), two for Aman. The rest goes in at final ploughing.

Is a bigha 33 decimals here?

Yes, Dhaka standard. If your local bigha is bigger, enter decimals.

Is the dose the same everywhere?

No — soil tests change it. Ask your sub-assistant agriculture officer.

Also searched as

fertilizer recommendation rice · urea dose per acre