Farmyard manure Nutrient Calculator
Value the N-P₂O₅-K₂O in farmyard manure (fym) (~0.5:0.25:0.5%) and the urea, DAP and MOP it replaces, with first-year nitrogen availability accounted for.
Well-rotted FYM averages 0.5-0.25-0.5% N-P-K. Only ~30% of its nitrogen is available the first year; the rest builds long-term soil fertility. Apply 2–3 weeks before sowing and incorporate.
Indicative planning figures based on published research averages. Local soil tests, varieties and weather change actual requirements — confirm with your agronomist or extension officer.
Organic and integrated-nutrient farmers use the free Farmyard manure Nutrient Calculator to put a rupee value on their farmyard manure (fym) and work out how much bagged fertilizer they can safely cut back.
About Farmyard manure Nutrient Calculator
Farmyard manure is the backbone of Indian soil fertility, but farmers rarely count its nutrient value in rupees. Well-rotted FYM averages 0.5-0.25-0.5% N-P₂O₅-K₂O, of which about 30% of the nitrogen is available in the first year. This tool turns your FYM tonnage into the urea, DAP and MOP it replaces — and the money saved.
How to use Farmyard manure Nutrient Calculator
- 1Enter your farmyard manure (fym) application rate and field area.
- 2Read the total N, P₂O₅ and K₂O supplied and the fertilizer it replaces.
- 3Cut your bagged-fertilizer plan by the equivalents shown, then follow the application note.
Why use Farmyard manure Nutrient Calculator?
- ✓Uses a realistic 0.5:0.25:0.5% N-P₂O₅-K₂O analysis for farmyard manure (fym)
- ✓Applies a 30% first-year nitrogen availability factor — organic N releases slowly
- ✓Converts the nutrients into urea, DAP and MOP equivalents and a rupee value
- ✓Free, instant and fully in-browser
Frequently asked questions
What is the nutrient value of farmyard manure (fym)?+
Farmyard manure (FYM) typically analyses around 0.5% N, 0.25% P₂O₅ and 0.5% K₂O. Roughly 30% of the nitrogen is available in the first year; the rest builds soil over following seasons.
Why is only part of the nitrogen counted the first year?+
Organic nitrogen is locked in complex compounds that soil microbes mineralise gradually. About 30% becomes plant-available in year one for farmyard manure (fym); the carry-over keeps feeding later crops, which is why organic matter improves long-term fertility.
How and when should I apply it?+
Well-rotted FYM averages 0.5-0.25-0.5% N-P-K. Only ~30% of its nitrogen is available the first year; the rest builds long-term soil fertility. Apply 2–3 weeks before sowing and incorporate.
Is this calculator free and private?+
Yes — completely free with no sign-up, and every calculation runs in your browser so nothing you enter is uploaded.
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