🧮 NPK Calculator

Nitrogen Deficiency in Tomato: Symptoms, Causes & How to Fix It

A complete agronomist guide to identifying and correcting Nitrogen deficiency in Tomato crops. Includes visual symptom guide, soil test interpretation, and fertilizer recommendations.

Why Tomato Needs Nitrogen

Nitrogen is an essential nutrient for Tomato growth and development. Nitrogen is the most limiting nutrient for crop production worldwide. Required in highest amounts.

In India, Nitrogen Deficiency is particularly common in Tomato grown in all India due to specific soil conditions in these regions.

Visual Symptoms of Nitrogen Deficiency in Tomato

🔍 What to look for in your Tomato field:

⚠️overall yellowing starting from older leaves
⚠️pale green to yellow color
⚠️stunted growth
⚠️early maturity
📊 Did you know? Nitrogen is the most limiting nutrient for crop production worldwide. Required in highest amounts.

Soil Causes of Nitrogen Deficiency in Tomato

Nitrogen Deficiency in Tomato is commonly caused by: Sandy soils, high rainfall leaching, low organic matter

A soil test is the most reliable way to confirm Nitrogen deficiency. Use SoilPro's NPK Calculator to get fertilizer recommendations based on your soil test values.

How to Correct Nitrogen Deficiency in Tomato

ProductApplication MethodDoseTiming
Urea 46% (top dressing)Foliar spraytop dressingVegetative stage
CAN 25% NFoliar sprayRecommended doseVegetative stage
Ammonium Sulphate 21% NFoliar sprayRecommended doseVegetative stage
liquid nitrogen fertilizersFoliar sprayAs per labelVegetative stage
Get Precise Recommendation for Your Farm
Use Our Free NPK Calculator
🧮 Calculate Now — Free →

Frequently Asked Questions

What are the symptoms of Nitrogen Deficiency in Tomato?

overall yellowing starting from older leaves, pale green to yellow color, stunted growth, early maturity

How quickly can I fix Nitrogen Deficiency in Tomato?

Foliar sprays show improvement in 7-10 days. Soil applications take 2-3 weeks. Severe deficiency may need 2-3 foliar sprays at weekly intervals.

Does Nitrogen Deficiency affect Tomato yield?

Yes significantly. Nitrogen deficiency reduces Tomato yield by 20-50% depending on severity. It also reduces fruit/grain quality.

Which soil test should I do for Tomato?

Test for pH, EC, N, P, K, Zn, Fe, Mn, B, and organic carbon. SoilPro can interpret any soil test report and give crop-specific recommendations.

Related Deficiency Guides