Poultry manure Nutrient Calculator
Value the N-P₂O₅-K₂O in poultry manure (~3:2.6:1.4%) and the urea, DAP and MOP it replaces, with first-year nitrogen availability accounted for.
Poultry manure is the richest common farm manure (≈3-2.6-1.4% N-P-K, ~50% first-year N) but is 'hot' — compost or age it before use and keep rates modest to avoid salt and ammonia damage to seedlings.
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 Poultry manure Nutrient Calculator to put a rupee value on their poultry manure and work out how much bagged fertilizer they can safely cut back.
About Poultry manure Nutrient Calculator
Poultry manure is the richest of the common farm manures — around 3-2.6-1.4% N-P₂O₅-K₂O with about half the nitrogen available in the first year — but it is 'hot' with ammonia and salts, so it must be composted and rate-controlled. This tool prices the nutrients it delivers and the fertilizer it offsets.
How to use Poultry manure Nutrient Calculator
- 1Enter your poultry manure 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 Poultry manure Nutrient Calculator?
- ✓Uses a realistic 3:2.6:1.4% N-P₂O₅-K₂O analysis for poultry manure
- ✓Applies a 50% 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 poultry manure?+
Poultry manure typically analyses around 3% N, 2.6% P₂O₅ and 1.4% K₂O. Roughly 50% 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 50% becomes plant-available in year one for poultry manure; the carry-over keeps feeding later crops, which is why organic matter improves long-term fertility.
How and when should I apply it?+
Poultry manure is the richest common farm manure (≈3-2.6-1.4% N-P-K, ~50% first-year N) but is 'hot' — compost or age it before use and keep rates modest to avoid salt and ammonia damage to seedlings.
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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