Does Chrysanthemum Need Sunlight for Cultivation
As a traditional famous flower in China, the management of lighting during the cultivation of chrysanthemum often confuses flower enthusiasts. Proper lighting not only promotes the robust growth of the plant but is also an essential condition for flowering. This article will analyze the subtle relationship between chrysanthemum and sunlight from a scientific perspective and provide professional emergency treatment solutions.
Complete Analysis of Chrysanthemum Lighting Needs
1. Lighting Management During Growth Stage
Chrysanthemum is a typical short-day plant, and its seedlings require 6-8 hours of soft lighting daily, which can be met by natural light before 9 am or after 4 pm. In the late spring and early summer growing period, extend the lighting to 10 hours to promote stem thickness with the addition of phosphorus and potassium fertilizers.
2. Lighting Control During Flowering Period
The bud differentiation stage needs to be strictly controlled under 12 hours of lighting, which can be achieved by covering with black shading cloth from 5 pm to 8 am the next day. After the buds appear, resume natural lighting but avoid direct midday sunlight, and it is recommended to use a 50% shading net for protection.
Emergency Treatment Plan for Sun-Scalded Chrysanthemum
1. Primary Sunburn Treatment
When the leaves appear wilted but not scorched: ① immediately move to a cool and well-ventilated place ② spray the leaves with a misting system every 2 hours ③ water the roots with a diluted EM bacteria solution (1:500) ④ maintain the environmental humidity at 60%-70%
2. Severe Burn Repair
When more than 30% of the leaves turn yellowish-brown: ① prune the damaged tissue (retaining 1 cm of healthy part) ② apply a multi-germicidal solution to the wound ③ apply seaweed acid water-soluble fertilizer to promote new buds ④ set up a double-layer shading net for transitional care
Through scientific light cycle management and timely damage treatment, combined with matrix moisture monitoring (keeping the water content at 40%-60%), chrysanthemum can enjoy the benefits of sunlight while avoiding risks. It is recommended to equip a lux meter for real-time monitoring and maintain the light intensity within the optimal range of 8000-15000 lux.