Planting method of potted Dendrobium
1. For the seed material of potted Dendrobium, one third of the pot bottom is covered with stones with a particle size of 2-3cm, and the upper two thirds is covered with fine bark and crushed stones.
2. The best season for transplanting Dendrobium in potted plants is from vernal equinox to Qingming, which is the season of germination, and new buds will grow immediately after planting. Pay attention to the depth. Burying the germination point under the plant material too deep will affect the germination rate, while moistening the roots too shallow will affect the growth, so pay attention to the season and cultivation techniques.
3. Conservation management: domestic Dendrobium has different methods in different environments. When planted on balconies or window frames where rain can't shower directly, Dendrobium plants are suitable for direct sunlight during this period of spring, because they like sunlight. Outdoor balcony planting should pay attention to heavy rain or excessive rainfall, which is easy to rot roots and pour seedlings, and shed cover is used as a preventive measure. According to the actual situation, water it once every 5-7 days, but it should not be too wet or too dry.
4. Summer and autumn: The balcony or window frame that has not been hit by rain should be sprayed with water at 6 o'clock every morning. Outdoor balcony should be rain-proof or glare-proof, and covered with shade to strengthen ventilation.
5. The balcony or window frame should be sprayed with water every 7- 10 day in winter, which is suitable for direct sunlight. Do not spray water below 5℃. Fertilize, breaking longan shells and litchi shells on the surface of the basin. Watch out for snails.
Harvest: Harvest flower buds at the end of spring every year. When harvesting, the stems and branches that are more than three years old are cut off, leaving buds for further growth.
Dendrobium planting pattern
In-situ planting: firstly, spread pebbles with a certain thickness on the ground, then spread some biomass-derived substrates on the pebbles (or mix some biomass-derived substrates on the pebbles at the top), and then plant Dendrobium candidum plants. This cultivation method was most used in Dendrobium candidum planting before 2007. This cultivation method is relatively convenient for fertilizer and water management, but the planted Dendrobium candidum plants are vulnerable to pests and diseases on the ground and in the soil.
Seedbed planting (elevated seedbed planting): firstly, a substrate with a certain thickness is placed on the elevated seedbed, and then Dendrobium candidum plants are planted on the substrate. The width of seedbed is generally about1.4m, and the height is not limited, so it is suitable for convenient operation. This cultivation method is most used in the planting of Dendrobium candidum after 2007, which is relatively convenient for fertilizer and water management, and the planted Dendrobium candidum plants are not vulnerable to pests and diseases on the ground and in the soil. Compared with the ground planting method, bed planting has lighter occurrence of pests and diseases and higher yield.
Dendrobium candidum is the best of Dendrobium candidum, named after its iron green skin. Dendrobium candidum has unique medicinal value. During the Qin and Han Dynasties, there was a record of Dendrobium candidum in Shennong Herbal Classic. Main injury, removing arthralgia, lowering qi, nourishing five internal organs, fatigue, thinness, strong yin and long stomach? ; Written more than 1000 years ago, Taoist medical classic Daozang listed Dendrobium candidum as? China's Nine Immortals? The first one; Li Shizhen evaluated Dendrobium candidum in Compendium of Materia Medica? Nourishing yin and essence, thickening the stomach, nourishing the five internal organs, calming the stomach, strengthening muscles, improving intelligence and relieving spasm, and prolonging life? ; People call it? Help, Xiancao? . When selecting Dendrobium, we must remember some basic characteristics of Dendrobium: most of them are cylindrical or cylindrical segments, with golden yellow, yellow-green or brown surface, shiny, deep longitudinal grooves or longitudinal edges, and some brown nodes can be seen; The section is yellowish white to yellowish brown, and most of them are scattered at the tendon point; Slight breath, light or bitter taste, sticky when chewing. There are many kinds of Dendrobium candidum in pharmacies, and the prices are also cheap. They are usually provided by aquatic plants. Only a few big brands in China can buy real Dendrobium candidum, and the two old brands of Dendrobium candidum and Tongrentang are the most authentic. Tongrentang is the most expensive, beautifully packaged and suitable for giving gifts. The main active component of Fengdou is Dendrobium polysaccharide. However, different Dendrobium polysaccharides have great differences in distribution, molecular weight, monosaccharide composition and proportion, main chain and branched chain structure, substituent position and so on. The three polysaccharides of Dendrobium candidum are mainly mannose glucomannan structure, and monosaccharides are mainly mannose and glucose, and their molecular weights are quite different.
Fengdou is rich in various amino acids. Especially in Dendrocalamus latiflorus, glutamic acid, aspartic acid and glycine account for 35% of the total amino acids, and Dendrocalamus latiflorus contains histidine, an essential amino acid for children. Different varieties of Fengdou contain different alkaloids. There are mainly sesquiterpene tree alkaloids, phenylpyrrolidine tree alkaloids, indolizidine alkaloids and so on.
Fengdou contains many minerals: potassium, calcium, magnesium, iron, manganese, strontium, titanium, copper and so on. Fengdou also contains compounds such as bibenzyl, phenanthrene, ketone and ester. These substances have different degrees of antimutagenic and antitumor activities, such as mauritanin. It also has the effects of promoting blood circulation, removing blood stasis and resisting thrombosis, such as scopoletin. Fengdou also contains a high proportion of plant fiber, water and other effective active ingredients.
Method for planting Dendrobium in family
Method 1:
Propagation by ramets: Choose plants that grow more.
After flowering, take it out of the pot, remove the old roots and cut it off from the base of the clustered stems.
Take the main plants as a group and further cut off the old roots. Put the new buds near the center of the pot, fill in the new substrate and compact, and you can grow new plants.
Method 2:
Cutting propagation: non-flowering and fruiting seeds are selected as sowing belts, the technical belt is cut into several sections, each section has 2-3 nodes, and plant ash or mancozeb is applied to the wound to treat the cut parts.
Insert the stems into the mixed substrate of moss and peat one by one, semi-exposed, and put them in a semi-cool and humid place. After insertion 1 week, you don't need to water, and then spray moisturizing regularly, which can properly shade.
1~2 months later, a new bud grows on the node, and 2~3 small roots grow under the new bud to form a new plant.
Put the new plant and the old stem on it, and it will bloom after 2~3 years of cultivation.
Method 3:
Dendrobium nobile, which is robust and free from diseases and insect pests, is selected, and the old stems that have been cut for more than 3 years are used as medicine, and the new stems that are 2 years old are used for reproduction. When breeding, the old roots are subtracted, leaving 2-3 cm, seeds are separated, each plant contains 2-3 stems, and then cultivated in a greenhouse with decomposed soil on the mountain.
In the late stage of Dendrobium planting, if the air humidity is too low, it should be watered frequently to keep moisture. You can use a sprayer to spray water. In the growing season of Dendrobium, attention should be paid to topdressing. Rotten peanut barrels, rapeseed cakes and calcium superphosphate can be added to the river mud mixture and sprinkled on the roots. Besides, 0.05? Topdressing 0. 1% potassium dihydrogen phosphate outside the roots, spraying a new type of high-fat film, improving the utilization rate of effective nutrients, and spraying Zhuangganling at the right time during the growth period, making the plants strong and lush. At the same time, it can improve the disaster resistance, reduce the dosage of pesticides and fertilizers, and reduce the residual poison.
Before the new buds germinate in spring every year, the dead stems in the cluster are combined with the old stems to remove the diseased stems, weak stems and diseased roots, and then a new high-fat film is sprayed to form a protective film to prevent the replication and infection of germs; After planting for 6-8 years, the shrew will be turned over and re-branched for reproduction according to its growth.