Cultivation method of chrysanthemum
As one of the most ornamental flowers in autumn courtyards, chrysanthemum is popular among gardening enthusiasts for its full flower shape and colorful colors. If this spherical Compositae plant wants to show its best condition, mastering scientific cultivation methods is particularly important. Principles for preparing substrates for controlling the growth environment of chrysanthemum An ideal cultivation substrate should meet the dual characteristics of breathability and fertility. It is recommended to add 200g of bone meal per cubic meter to increase the phosphorus and potassium content according to the ratio of humus soil: pastoral soil: perlite =5:3:2. Regular loosening of soil avoids hardening and ensures that the root system stretches freely. Light and temperature control requires 6 hours of scattered light every day, and sunshade nets are needed for protection at noon in summer. The suitable temperature range for growth is 18-25℃, and the overwintering temperature is not lower than 5℃. By building a simple greenhouse or moving it indoors, the viewing period can be effectively extended. The key points of water management are the "see dry, see wet" method, and the surface soil is poured with water when it is dry by 1 cm. Control water in winter to 1-2 times a month, and timely drainage and waterlogging prevention in rainy seasons. It is recommended to use a long-spout pot to water along the edge of the pot to avoid disease caused by water accumulation in leaves. Nutrient supply strategy for cultivating chrysanthemum in pot: Apply special slow-release fertilizer for flowers every half a month during the growing period, and apply potassium dihydrogen phosphate solution (1:1000) during the bud appearing period. Organic fertilizers need to be fully decomposed and watered immediately after fertilization to prevent root burning. Plant type pruning artistic seedling period: the plant height is 15cm, the first topping is topped, retaining 4 pairs of true leaves; the lateral branches are pruned twice to 10cm long; the shape is pruned 40 days before flowering. Remove residual flowers and leaves in time and maintain ventilation and light transmission. Root health maintenance When changing pots every spring, 1/3 of the old roots are cut off and disinfected. Use carbendazim solution (1:800) to irrigate roots to prevent root rot, and spray matrine solution (1:200) immediately when aphids are found.
Through systematic environmental control and fine maintenance, the chrysanthemum can achieve a crown width of up to 60cm. The key is to grasp the three major elements of "breathable substrate, sufficient light, and balanced fertility" and combine them with regular pruning and shaping to allow the chrysanthemum to bloom into amazing spherical flower clusters.