Vermicompost Nutrient Calculator
Value the N-P₂O₅-K₂O in vermicompost (~1.5:1:1.2%) and the urea, DAP and MOP it replaces, with first-year nitrogen availability accounted for.
Vermicompost is richer and more available than ordinary compost (≈1.5-1.0-1.2% N-P-K, ~40% first-year N) thanks to earthworm processing. It also carries beneficial microbes and growth hormones not valued here.
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 Vermicompost Nutrient Calculator to put a rupee value on their vermicompost and work out how much bagged fertilizer they can safely cut back.
About Vermicompost Nutrient Calculator
Vermicompost is more concentrated and more readily available than ordinary compost — about 1.5-1.0-1.2% N-P₂O₅-K₂O with ~40% first-year nitrogen — because earthworms have already broken it down. This tool prices the NPK your vermicompost supplies; its microbial and hormone benefits are a bonus on top of the figures shown.
How to use Vermicompost Nutrient Calculator
- 1Enter your vermicompost 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 Vermicompost Nutrient Calculator?
- ✓Uses a realistic 1.5:1:1.2% N-P₂O₅-K₂O analysis for vermicompost
- ✓Applies a 40% 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 vermicompost?+
Vermicompost typically analyses around 1.5% N, 1% P₂O₅ and 1.2% K₂O. Roughly 40% 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 40% becomes plant-available in year one for vermicompost; the carry-over keeps feeding later crops, which is why organic matter improves long-term fertility.
How and when should I apply it?+
Vermicompost is richer and more available than ordinary compost (≈1.5-1.0-1.2% N-P-K, ~40% first-year N) thanks to earthworm processing. It also carries beneficial microbes and growth hormones not valued here.
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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