What is the black head of celery?
                                
                                
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                                    6 min read                                
                            
                                Celery is a heavy feeder that requires a consistent supply of nutrients, and a calcium deficiency is the primary cause of a physiological disorder known as "blackheart," which results in what is colloquially known as the black head of celery. This condition is not a pathogen but rather a symptom of nutrient imbalance, often triggered by environmental factors.