Neem cake Nutrient Calculator
Value the N-P₂O₅-K₂O in neem cake (~5:1:1.5%) and the urea, DAP and MOP it replaces, with first-year nitrogen availability accounted for.
Neem cake (≈5-1-1.5% N-P-K) is both a nitrogen source and a natural nitrification inhibitor and nematicide — it slows urea losses and suppresses soil pests, value beyond the NPK shown. Typical rate 250–500 kg/ha.
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 Neem cake Nutrient Calculator to put a rupee value on their neem cake and work out how much bagged fertilizer they can safely cut back.
About Neem cake Nutrient Calculator
Neem cake — the residue after neem-oil extraction — is a high-nitrogen organic (about 5-1-1.5% N-P₂O₅-K₂O) that doubles as a nitrification inhibitor and soil-pest/nematode suppressant. Applied at 250–500 kg/ha it stretches urea efficiency and protects roots. This tool values its NPK; the pest-control benefit is extra.
How to use Neem cake Nutrient Calculator
- 1Enter your neem cake 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 Neem cake Nutrient Calculator?
- ✓Uses a realistic 5:1:1.5% N-P₂O₅-K₂O analysis for neem cake
- ✓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 neem cake?+
Neem cake typically analyses around 5% N, 1% P₂O₅ and 1.5% 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 neem cake; the carry-over keeps feeding later crops, which is why organic matter improves long-term fertility.
How and when should I apply it?+
Neem cake (≈5-1-1.5% N-P-K) is both a nitrogen source and a natural nitrification inhibitor and nematicide — it slows urea losses and suppresses soil pests, value beyond the NPK shown. Typical rate 250–500 kg/ha.
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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