今年桂花“慢半拍” 绿化工人“来助力”

Core Insights - The delayed blooming of osmanthus in Hangzhou is attributed to climate sensitivity, with optimal blooming conditions requiring sustained average temperatures of 20°C to 22°C [1] - High temperatures during the National Day and Mid-Autumn Festival holidays have hindered the flowering process, but cooler air is expected to create favorable conditions for blooming by late October [1] Group 1 - Osmanthus is a climate-sensitive plant, with its flowering dependent on specific temperature conditions [1] - The prolonged high temperatures, referred to as "autumn tiger," have delayed the flowering signals for osmanthus [1] - Experts predict a concentrated blooming period for osmanthus in Hangzhou by late October [1] Group 2 - Green workers implement a detailed irrigation plan, watering in the early morning and late evening to avoid root damage from midday heat [2] - The irrigation strategy is tailored based on the size of the plants and soil moisture, ensuring adequate water supply for osmanthus trees [2] - During the flower bud differentiation period, workers provide osmanthus trees with a nutrient boost primarily consisting of phosphorus and potassium to prepare for blooming [2]