Nutrient Deficiency
Fertilizer Deficiency Symptom Checker
Yellow leaves? Purple stems? Scorched edges? Select what you see on your plants and we'll point you to the likely nutrient deficiency — with the right fertilizer to fix it.
Step 1 — Select the symptoms you see
Tap all that apply. You can select more than one.
Quick reference — all deficiencies
| Nutrient | Classic symptom | Fix with |
|---|---|---|
| Nitrogen (N) | Older / lower leaves turning yellow | Urea |
| Phosphorus (P) | Purple or reddish leaves / stems | DAP / SSP |
| Potassium (K) | Brown, scorched leaf edges | SOP / MOP |
| Zinc (Zn) | Abnormally small leaves (little leaf) | Zinc sulfate |
| Iron (Fe) | New leaves yellow but veins stay green | Ferrous sulfate / Fe-EDDHA |
| Boron (B) | Growing tip dies or looks distorted | Borax |
| Magnesium (Mg) | Older / lower leaves turning yellow | Magnesium sulfate |
| Sulphur (S) | New leaves uniformly pale yellow | Gypsum / Ammonium sulfate |
| Calcium (Ca) | Growing tip dies or looks distorted | Gypsum / Calcium nitrate |
| Manganese (Mn) | New leaves yellow but veins stay green | Manganese sulfate |
Disclaimer: Visual symptoms overlap between deficiencies, pests, and diseases. This checker is an educational guide based on standard agronomic references — it is not a substitute for a laboratory soil or tissue test. When in doubt, get your soil tested before applying corrective fertilizer.