Why Are the Chrysanthemum Buds Dropping
In the midsummer season, many flower enthusiasts find that their carefully nurtured chrysanthemums frequently drop flower buds. As a typical temperate plant, chrysanthemums have strict requirements for their growing environment. This article will delve into the causes of bud drop from four dimensions: temperature control, water management, fertilization techniques, and pest and disease prevention, providing scientific solutions.
Core Care Points for Chrysanthemum Bud Drop
One, Sudden Temperature Rise Causes Metabolic Disorder
When the ambient temperature exceeds the critical value of 30°C, chrysanthemums will activate their self-protection mechanism. At this point, the plant will prioritize the survival of the main stem, shedding flower buds to reduce nutrient consumption. It is recommended to adopt double protection during high temperatures: 1. Set up a shade net to block intense midday sunlight 2. Spray atomized water twice a day, morning and evening, to cool down 3. Use an electronic temperature and humidity meter for real-time monitoring.
Two, Chain Reaction of Waterlogging and Root Rot
Observation through cross-sections reveals that plant roots will show brown lesions after being waterlogged for more than three days. The golden rescue period should be completed within 24 hours: 1. Immediately remove the pot and clean the decayed roots 2. Soak in potassium permanganate solution for disinfection 3. Replace with new substrate containing 30% perlite. For daily maintenance, it is recommended to use the "pot-lifting method" to determine the watering time, with the best time to water being when the pot soil has lost 1/3 of its weight.
Three, Typical Symptoms of Nutritional Imbalance
Imbalance in the N-P-K ratio can lead to the cessation of bud development. Experimental data show that during the flowering period, the fertilizer ratio should be maintained at N-P-K=1:3:2. It is recommended to use: 1. Diluted potassium dihydrogen phosphate solution (1:2000) 2. Decomposed sheep manure as a base fertilizer 3. Supplement with seaweed trace element fertilizer monthly. Special attention should be paid to the "flushing" operation after fertilization to prevent salt accumulation.
Four, Hidden Harm of Pests and Diseases
Pests like red spiders will absorb the juice from the flower calyx, causing the formation of abscission layers at the base of the flower buds. It is recommended to establish a three-level defense system: 1. Hang yellow sticky traps for physical control 2. Regularly spray biopesticides such as matrine 3. Maintain environmental ventilation to reduce humidity. When diseases are found, isolate the affected plants immediately to avoid cross-contamination.
By systematically controlling the four elements of temperature, light, soil, and water, and combining regular inspections and maintenance, it is possible to maintain a retention rate of over 95% for chrysanthemum buds. It is recommended that flower enthusiasts keep a maintenance log, recording daily environmental parameters and plant conditions to gradually master precise management skills.