Fodder maize Fertilizer Calculator
Work out the exact urea, DAP and MOP for fodder maize from the recommended 100:50:40 kg/ha N-P₂O₅-K₂O dose, adjusted to your soil test and field size.
Half N + full P, K basal; rest N at knee-high. The crop is cut green at milk-to-dough stage (~65–80 days), so the program is grain-maize's opening half at slightly lower rates.
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 Fodder maize Fertilizer Calculator to convert the official fodder maize 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 Fodder maize Fertilizer Calculator
Fodder and silage maize stop where grain maize is just getting started — harvested green at dough stage — so the dose drops the late-season tail and concentrates on early biomass. This calculator starts from the published recommendation of 100:50:40 kg/ha N-P₂O₅-K₂O (single-cut fodder/silage), 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 Fodder maize 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 Fodder maize Fertilizer Calculator?
- ✓Official package-of-practices dose for fodder maize — 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 fodder maize?+
Single-cut fodder/silage: 100 kg N, 50 kg P₂O₅ and 40 kg K₂O per hectare. Half N + full P, K basal; rest N at knee-high.
When is fodder maize cut for the best feed value?+
Milk to early-dough stage (about 65–80 days): the best compromise of tonnage, protein and digestibility — and the basis of this lighter 100:50:40 plan.
Is silage maize fertilized differently from green-chop fodder?+
Slightly — silage crops standing to dough stage use the full plan, while quick green-chop sequences can trim the second N split if the cut comes early.
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.
Related Agri tools
Tractor Fuel Consumption Calculator
Estimate your tractor's diesel consumption per hour from its horsepower, load and specific fuel consumption.
● LiveTractor Fuel Cost Per Acre Calculator
Convert your tractor's fuel use per hour into diesel litres and cost per acre for any field operation.
● LiveImplement Field Capacity Calculator
Calculate the effective field capacity (ha/h and acres/h) of any implement from width, speed and field efficiency.
● Live