Cultivation method of Dendrobium densiflora
As a treasure among orchid plants, Dendrobium densiflora is favored by horticulture enthusiasts for its unique string and medicinal value. This kind of epiphytic orchids requires special skills in home maintenance to achieve the ornamental effect of evergreen all year round and blooming every year in a limited space. 1. Regulation of growth environment of Dendrobium densiflora, temperature and light management, The original environment of Dendrobium densiflora is tropical rainforest trunks, and the suitable temperature range is 15-28℃. If it exceeds 32℃ in summer, it needs to be moved to a cool place, and if it stays above 8℃ in winter, it can be safe to overwinter. The lighting requirements follow the principle of "full sunshine in winter and spring, and half shade in summer and autumn." Using 50% sunshade net can avoid leaf burns. The humidity circulation system adopts the "alternating dry and wet method" for watering: after the substrate is completely dried, soak it in the basin for 15 minutes, and combine with morning and evening leaf spray. The air humidity is maintained at 60-80%. Ventilation needs to be strengthened during the rainy season. It is recommended to equip an ultrasonic humidifier during the winter heating period. 2. Nutrient supply plan for Dendrobium densiflora water and fertilizer management (March to September), special orchid fertilizer (N-P-K=20-20-20) is applied every week, and high-phosphorus potassium fertilizer is used during the bud appearing period. Stop fertilization during winter dormant periods and spray alginate once every half month to enhance stress resistance. Cultivation method of Dendrobium denciflora by optimizing substrate ratio
A mixed substrate of pine bark: coconut shell: volcanic rock =5:3:2 is recommended, with a particle size of 1-1.5cm being the best. Adding 10% decomposed sheep dung when changing pots every spring can promote the germination of new buds. 3. Operation points for Dendrobium densiflora propagation, pruning and dividing select healthy mother plants more than 3 years old, and keep 4-5 false bulbs into a cluster. Apply charcoal powder to the incision for disinfection, soak in a rooting agent for 30 minutes, and then put on the pot. After dividing, the plants were placed in scattered light to slow down the seedlings for 2 weeks. Modeling and pruning techniques Cut off the remaining flower stalks in time after flowering and retain the 2 buds at the base. Cut dense stalks every spring to maintain 8-10 growing stems per cluster. The withered old stems are retained until they fall off naturally and can store nutrients. 4. Comprehensive prevention and control of diseases and insect pests of Dendrobium denciflora