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Fertilizer burn is a common issue faced by gardeners and farmers alike. It occurs when excessive or improperly applied fertilizer damages plants, leading to symptoms like leaf drop, wilting, and even plant death. Understanding the causes and prevention methods is essential for healthy plant growth.
What Is Fertilizer Burn?
Fertilizer burn happens when high concentrations of salts in fertilizer draw moisture away from plant roots. This dehydration damages the roots and leaves, resulting in stress and visible symptoms such as leaf yellowing, browning, and dropping.
Causes of Fertilizer Burn
- Applying too much fertilizer at once
- Using concentrated fertilizer solutions
- Fertilizer contact with plant stems or leaves
- Incorrect application timing, especially during hot weather
- Not watering plants after fertilizing
Signs of Fertilizer Burn
- Edge browning or scorching of leaves
- Yellowing of leaf margins
- Leaf drop or wilting
- Stunted growth
- Root damage observed during transplanting or inspection
Preventing Fertilizer Burn
- Always follow the recommended dosage on fertilizer labels
- Apply fertilizer evenly and avoid over-concentrating in one area
- Water thoroughly after fertilizing to help dilute salts
- Use slow-release or organic fertilizers when possible
- Apply fertilizer during cooler parts of the day to reduce stress
What To Do If Your Plants Are Burned
If you suspect fertilizer burn, immediately flush the soil with water to wash away excess salts. Remove severely affected leaves and avoid fertilizing until the plant recovers. Monitoring soil moisture and adjusting fertilization practices help prevent future issues.
Conclusion
Fertilizer burn is a preventable condition that can cause significant damage to plants. Proper application techniques, appropriate fertilizer choices, and attentive watering practices are key to maintaining healthy, vibrant plants free from leaf drop caused by nutrient stress.