A method for rapidly and three-dimensionally cultivating Dendrobium chrysotoxum using fern care plants

Abstract

The present invention discloses a method for rapid three-dimensional cultivation of Dendrobium chrysotoxum using fern care plants. The present invention uses a method for rapid three-dimensional cultivation of Dendrobium chrysotoxum using fern care plants, which not only improves the landscape effect of three-dimensional greening of Dendrobium chrysotoxum, but also improves the planting survival rate of Dendrobium chrysotoxum, and is easy to maintain, and is suitable for wide promotion and application in urban gardens or family greening and beautification cultivation. Dendrobium chrysotoxum is both a medicinal and edible plant resource, and is also an ornamental plant with excellent landscape effect in gardens or family greening and beautification. Rapid three-dimensional cultivation of Dendrobium chrysotoxum using fern care plants has a high survival rate, low cost, and extensive management and maintenance, which is easy to operate, and has both high ecological and economic benefits. Therefore, the present invention has a very good application prospect in three-dimensional cultivation and planting in South China.

Description

Technical Field

[0001] The present invention belongs to the technical field of ecological environmental protection science, and specifically relates to a method for rapidly and three-dimensionally cultivating Dendrobium chrysotoxum using fern nursing plants. Background Art

[0002] Currently, the cultivation and breeding of Dendrobium are usually carried out by sowing, cutting, tissue culture, etc., mainly in seedbed production and cultivation. The maintenance and management requirements are complex, and the maintenance cost is high. The three-dimensional cultivation of Dendrobium chrysotoxum can not only form a good landscape effect, but also increase the green quantity in the vertical space, prevent dust and reduce noise, lower temperature and increase humidity, purify the air, improve the local microclimate and optimize the environment. The three-dimensional cultivation and maintenance of Dendrobium chrysotoxum have low costs and high survival rates, and will have broad application prospects in the three-dimensional cultivation under forests.

[0003] Dendrobium chrysotoxum is a perennial herb of the genus Dendrobium in the Orchidaceae family. It likes to grow in a warm, humid, semi-shady and semi-sunny environment, and grows on the trunks of evergreen broad-leaved forests with sufficient sunlight or on rocks under sparse forests at an altitude of 520 - 1620m. It is produced in Shiping, Jinggu, Simao, Mengla, Jinghong, Gengma, Zhenkang, Cangyuan in Yunnan. The stem of Dendrobium chrysotoxum is erect, spindle-shaped, 6 - 30 cm long, 1.5 - 5 cm thick in the middle, with 2 - 5 internodes, with many round and blunt ribs, golden yellow after drying, and having 2 - 5 leaves near the top. The leaves are leathery, oblong, 19 cm long, 2 - 3.5 cm wide, with the apex acuminate and hooked, and the base tapering, but not extending downward into a sheathing leaf base. The raceme has golden yellow flowers with a slightly fragrant smell, and the flowering period is from March to May. Dendrobium chrysotoxum is a national second-class protected wild plant in China, is listed in Appendix II of the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES), and is listed in the Red List of Threatened Species of the International Union for Conservation of Nature (IUCN) - Vulnerable (VU). It is strictly prohibited to dig wild Dendrobium chrysotoxum. Most of the Dendrobium chrysotoxum and Dendrobium officinale circulating in the market are artificially cultivated varieties. Currently, Dendrobium is mainly used in orchid special gardens for science popularization and education in landscaping, or for the greening and beautification of residential courtyards for viewing. There has been no report on large-scale cultivation and breeding under forests. Summary of the Invention

[0004] The present invention provides a method for rapidly and three-dimensionally cultivating Dendrobium chrysotoxum using fern nursing plants, which solves the problems of high cost, low survival rate, monotonous landscape, frequent occurrence of pests and diseases in the existing cultivation methods.

[0005] A method for rapidly and three-dimensionally cultivating Dendrobium chrysotoxum using fern nursing plants according to the present invention includes the following steps:

[0006] a. Material preparation: Select Dendrobium chrysotoxum seedlings with a plant height of more than 15 cm, strong plants without pests and diseases, and Drynaria fortunei or Pseudodrynaria coronans plants with a plant height of 20 - 30 cm, complete tubers and strong growth for standby.

[0007] b. Carrier selection: Select trees with lush branches and leaves, spreading crowns, strong trunks, and rough bark. First, spray the trunks with water to keep the bark moist.

[0008] c. Nursing plant planting: Use a long strip to directly attach the drynaria rhizome and / or pseudodrynaria coronans tuber described in step a in a mass-like manner tightly against the bark, and tie and fix it to the trunk of the carrier described in step b.

[0009] d. Substrate preparation: Soak dry moss in a 5%-10% compound fertilizer liquid and mix evenly for standby.

[0010] e. Planting of dendrobium wardianum seedlings: Take an appropriate amount of moss that is evenly mixed and fully moistened in step d, pad it at the base of the dendrobium wardianum seedlings described in step a, and then tie and fix it tightly against the bark with coconut fiber tape. The distance between adjacent two plants is controlled at 15-50 cm, and the position can be adjusted according to the needs of the shape or landscape effect, arranged in a scattered manner.

[0011] f. Plant watering: When watering the planted dendrobium wardianum seedlings and nursing plants for the first time, keep the cultivation substrate moist and without water dripping.

[0012] g. Maintenance management: After the dendrobium and nursing plants grow and adhere tightly to the trunk, remove the coconut fiber tape. The survival rate of dendrobium wardianum reaches over 95%. Due to the role of nursing plants such as drynaria rhizome or pseudodrynaria coronans, there are very few pests and diseases in the later stage of dendrobium wardianum. In addition, according to the nutritional requirements of the growth cycle of dendrobium wardianum, compound fertilizer can be put into a tea bag and tied to the roots of drynaria rhizome or pseudodrynaria coronans, and the fertilizer is diluted and slowly released to the surrounding of the trunk surface for dendrobium wardianum to absorb and utilize by watering and maintenance.

[0013] The tree in step b has a diameter of more than 20 cm. Preferably, the tree is acacia mangium or elaeocarpus apiculatus with a root-crown ratio of 1:1.5.

[0014] Preferably, when tying and fixing to the trunk of the carrier described in step b, the drynaria rhizome or pseudodrynaria coronans tuber can be wound around the trunk in a circle, or fixed according to a certain shape or pattern, leaving a certain space for planting dendrobium wardianum seedlings. The distance between drynaria rhizome and / or pseudodrynaria coronans and the dendrobium seedlings is controlled at 10-100 cm; after one week, the drynaria rhizome and pseudodrynaria coronans grow well on the trunk of the carrier described in step b, creating a good growth environment, and the water retention capacity is more than 1 time that without adding nursing plants, which is beneficial to water and fertilizer conservation.

[0015] Preferably, in step f, after the first watering, within 1 week thereafter, if the temperature is higher than 30°C, spray water once a day; if the temperature is lower than 15°C, spray water every other day. Water when it is dry and stop when it is wet, and keep the leaves of dendrobium wardianum without water accumulation.

[0016] Using the method of the present invention for three-dimensional cultivation of Dendrobium chrysotoxum, after 30 days, when Drynaria fortunei is used alone as a nursing plant, the survival rate of Dendrobium chrysotoxum is the highest, with an average value reaching over 95%; when Drynaria fortunei and Pseudodrynaria coronans are used in combination as nursing plants, the survival rate of Dendrobium chrysotoxum is the second highest, with an average value reaching over 85%; when Pseudodrynaria coronans is used alone as a nursing plant, the survival rate of Dendrobium chrysotoxum is the lowest, with an average value reaching over 72%. Therefore, choosing Drynaria fortunei alone as a nursing plant has the best effect for the rapid three-dimensional cultivation of Dendrobium chrysotoxum. Drynaria fortunei, Pseudodrynaria coronans, etc. as nursing plants have rapidly constructed a three-dimensional cultivation system for Dendrobium chrysotoxum, not only forming a good ornamental landscape effect, but also being able to be used as understory economic crops, and being used as traditional Chinese medicine after picking, increasing its economic value.

[0017] The beneficial effects of the present invention are as follows: The method for rapidly three-dimensionally cultivating Dendrobium chrysotoxum using fern nursing plants not only improves the landscape effect of the three-dimensional greening of Dendrobium chrysotoxum, but also increases the planting survival rate of Dendrobium chrysotoxum, and is easy to maintain, and is suitable for wide promotion and application in urban gardens or home greening and beautification cultivation. Dendrobium chrysotoxum is both a medicinal and edible plant resource and an ornamental plant with excellent landscape effects in garden or home greening and beautification. Using fern nursing plants for the rapid three-dimensional cultivation of Dendrobium chrysotoxum has a high survival rate, low cost, and is easy to manage and operate, with both high ecological and economic benefits. Therefore, the present invention has very good application prospects in the three-dimensional cultivation and planting in South China. Specific embodiments

[0018] The following examples are further descriptions of the present invention and are not limitations of the present invention.

[0019] Example 1:

[0020] Time and venue: In March 2020, in the planting base of medicinal and edible plant resources in the South China Botanical Garden Scientific Research Area, No. 723, Tianhe District, Guangzhou City.

[0021] Experimental materials: Prepare 18 plants of Drynaria fortunei with a plant height of 20 - 30 cm, complete tubers and good growth, 18 plants of Pseudodrynaria coronans, and 216 seedlings of Dendrobium chrysotoxum with a plant height of about 5 cm. Cut the sunshade net into strips with a width of 5 cm for later use.

[0022] Creation of cultivation environment: The experimental group selected 6 Acacia mangium with a breast diameter of 20 - 50 m as carriers, and marked them as carrier A (breast diameter 20 cm), carrier B (breast diameter 25 cm), carrier C (breast diameter 30 cm), carrier D (breast diameter 35 cm), carrier E (breast diameter 40 cm), and carrier F (breast diameter 50 cm) respectively. First, spray the tree trunks with water to keep the bark of each Acacia mangium moist.

[0023] Substrate preparation: Soak dry moss in a 7% compound fertilizer liquid for later use.

[0024] Cultivation method:

[0025] A. Use long strips to directly bind and fix the tubers of 6 Drynaria fortunei in a clump shape closely against the bark onto the trunk of carrier A. The 6 Drynaria fortunei are arranged with a vertical stagger of 20 - 100 cm. After one week, when the Drynaria fortunei have adapted to growing on the trunk, in the empty space around the trunk, take an appropriate amount of fully moist moss and pad it at the base of the Dendrobium wardianum seedlings. Then use coconut fiber tape to firmly bind and fix 12 Dendrobium wardianum seedlings against the bark onto the trunk. The layout points can be selected according to the requirements of the presented landscape effect.

[0026] B. Use long strips to directly bind and fix the tubers of 6 Drynaria fortunei in a clump shape closely against the bark onto the trunk of carrier B. The 6 Drynaria fortunei are arranged with a vertical stagger of 20 - 100 cm. After one week, when the Drynaria fortunei have adapted to growing on the trunk, in the empty space around the trunk, take an appropriate amount of fully moist moss and pad it at the base of the Dendrobium wardianum seedlings. Then use coconut fiber tape to firmly bind and fix 24 Dendrobium wardianum seedlings against the bark onto the trunk. The layout points can be selected according to the requirements of the presented landscape effect.

[0027] C. Use long strips to directly bind and fix the tubers of 6 Pseudodrynaria coronans in a clump shape closely against the bark onto the trunk of carrier C. The 6 Drynaria fortunei are arranged with a vertical stagger of 20 - 100 cm. After one week, when the Drynaria fortunei have adapted to growing on the trunk, in the empty space around the trunk, take an appropriate amount of fully moist moss and pad it at the base of the Dendrobium wardianum seedlings. Then use coconut fiber tape to firmly bind and fix 12 Dendrobium wardianum seedlings against the bark onto the trunk. The layout points can be selected according to the requirements of the presented landscape effect.

[0028] D. Use long strips to directly bind and fix the tubers of 6 Pseudodrynaria coronans in a clump shape closely against the bark onto the trunk of carrier D. The 6 Drynaria fortunei are arranged with a vertical stagger of 20 - 100 cm. After one week, when the Drynaria fortunei have adapted to growing on the trunk, in the empty space around the trunk, take an appropriate amount of fully moist moss and pad it at the base of the Dendrobium wardianum seedlings. Then use coconut fiber tape to firmly bind and fix 24 Dendrobium wardianum seedlings against the bark onto the trunk. The layout points can be selected according to the requirements of the presented landscape effect.

[0029] E. Use long strips to directly bind and fix the tubers of 3 Drynaria fortunei and 3 Pseudodrynaria coronans in a clump shape closely against the bark onto the trunk of carrier E. The 3 Drynaria fortunei and 3 Pseudodrynaria coronans are arranged with a vertical stagger of 20 - 100 cm. After one week, when the Drynaria fortunei and Pseudodrynaria coronans have adapted to growing on the trunk, in the empty space around the trunk, take an appropriate amount of fully moist moss and pad it at the base of the Dendrobium wardianum seedlings. Then use coconut fiber tape to firmly bind and fix 12 Dendrobium wardianum seedlings against the bark onto the trunk. The layout points can be selected according to the requirements of the presented landscape effect.

[0030] F. Use long strips to directly and closely bind and fix 3 plants of Drynaria roosii and 3 plants of Pseudodrynaria coronans tubers in a clump shape to the trunk of carrier F in direct contact with the bark. The 3 plants of Drynaria roosii and 3 plants of Pseudodrynaria coronans are arranged with a vertical stagger of 20 - 100 cm. After one week, when the Drynaria roosii and Pseudodrynaria coronans have adapted to growing on the trunk, in the empty space around the trunk, take an appropriate amount of fully moistened moss and pad it at the base of the Dendrobium wardianum seedlings. Use coconut fiber tape to tightly bind and fix 24 Dendrobium wardianum seedlings to the trunk in direct contact with the bark. The layout points can be selected according to the needs of the presented landscape effect.

[0031] Setting of the blank control group: The control group also selects 6 Acacia mangium with a DBH of 20 - 50 m as carriers, which are respectively marked as carrier A 0 (DBH 20 cm), carrier B 0 (DBH 25 cm), carrier C 0 (DBH 30 cm), carrier D 0 (DBH 35 cm), carrier E 0 (DBH 40 cm), carrier F 0 (DBH 50 cm). First, spray the trunk with water to keep the bark of each Acacia mangium moist. During cultivation, no nursing plants are added. Directly use coconut fiber tape to tightly bind and fix 12 Dendrobium wardianum seedlings, 24 Dendrobium wardianum seedlings, 12 Dendrobium wardianum seedlings, 24 Dendrobium wardianum seedlings, 12 Dendrobium wardianum seedlings, and 24 Dendrobium wardianum seedlings to carriers A 0 、carrier B 0 、carrier C 0 、carrier D 0 、carrier E 0 、carrier F 0 on the trunk in direct contact with the bark. The layout points can be selected according to the needs of the presented landscape effect.

[0032] Maintenance and management: When watering the planted Dendrobium wardianum seedlings and nursing plants for the first time, it is best to keep the cultivation substrate moist and without water dripping; within the next 1 week, when the temperature is 22℃ - 28℃, spray water once around 10 am every day. When watering, soak the bark thoroughly, keep it dry and wet alternately, and ensure that there is no water accumulation on the leaves of the Dendrobium wardianum seedlings. After 1 month, when the Dendrobium wardianum and the nursing plants are closely attached to the trunk after growth, the tied shading net strips can be removed. According to statistics, the survival rates of Dendrobium wardianum on each carrier in the experimental group are (A) 91.67%, (B) 95.83%, (C) 66.67%, (D) 79.17%, (E) 83.33%, (F) 87.50% respectively. While the survival rates of Dendrobium wardianum on each carrier in the control group are (A 0 ) 33.33%, (B 0 ) 25.00%, (C 0 ) 41.67%, (D 0 ) 29.17%, (E0 ) 41.67%, (F 0 ) 37.50%. From this, it can be seen that when using Drynaria fortunei alone as the nursing plant, the survival rate of Dendrobium chrysotoxum is the highest (average value is 93.75%); when using a combination of Drynaria fortunei and Pseudodrynaria coronans as the nursing plant, the survival rate of Dendrobium chrysotoxum is the second lowest (average value is 85.42%); when using Pseudodrynaria coronans alone as the nursing plant, the survival rate of Dendrobium chrysotoxum is the lowest (average value is 72.92%). In the later stage, according to the nutritional requirements of the growth cycle of Dendrobium chrysotoxum, compound fertilizer can be put into a tea bag and tied to the roots of Drynaria fortunei or Pseudodrynaria coronans, and the fertilizer can be diluted and slowly released to the surrounding surface of the tree trunk for Dendrobium chrysotoxum to absorb and utilize by watering and maintenance. After 3 years of observation, the growth status of Dendrobium chrysotoxum in the experimental group in the later stage is good, and the landscape effect is well received. While the growth status of Dendrobium chrysotoxum in the control group is poor, some will die, and the landscape effect is poor.

[0033] Example 2:

[0034] Time and venue: In March 2021, at the nursery base on Congyun Road, Baiyun District, Guangzhou City.

[0035] Experimental materials: Prepare 12 Drynaria fortunei plants and 12 Pseudodrynaria coronans plants with a plant height of 20 - 30 cm, complete tubers and good growth, and 180 Dendrobium chrysotoxum seedlings with a plant height of about 5 cm. Cut the sunshade net into strips with a width of 5 cm for later use.

[0036] Cultivation environment creation: The experimental group selected 6 Elaeocarpus apiculatus with a breast diameter of 30 - 40 m as carriers, and marked them as carrier A 1 (breast diameter 30 cm), A 2 (breast diameter 30 cm), carrier B 1 (breast diameter 35 cm), B 2 (breast diameter 35 cm), carrier C 1 (breast diameter 40 cm), C 2 (breast diameter 40 cm). First, spray the tree trunks with water to keep the bark of each Elaeocarpus apiculatus moist.

[0037] Substrate preparation: Soak dry moss in an 8% compound fertilizer liquid for later use.

[0038] Cultivation method:

[0039] 1. Use long strips to directly bind and fix 1 group (8 plants in each group) of Drynaria fortunei tubers in a clump shape to carrier A 1 and A 2On the tree trunk, each group of 8 Drynaria roosii plants is arranged with a vertical stagger of 20 - 100 cm. After one week, when the Drynaria roosii has adapted to growing on the tree trunk, in the empty space around the tree trunk, take an appropriate amount of fully moistened moss and pad it at the base of the Dendrobium chrysotoxum seedlings. Divide 60 Dendrobium chrysotoxum seedlings into 2 groups, with 30 seedlings in each group, and use coconut fiber bands to tightly bind and fix them to Tree Trunk A respectively 1 and Tree Trunk A 2 On the tree trunk, the layout points can be selected according to the needs of the presented landscape effect.

[0040] 2. Use long strips to successively and directly bind and fix each group (8 plants in each group) of Pleione bulbocodioides tuber in a clump to Tree Trunk B respectively 1 and Tree Trunk B 2 On the tree trunk, each group of 8 Pleione bulbocodioides plants is arranged with a vertical stagger of 20 - 100 cm. After one week, when the Drynaria roosii has adapted to growing on the tree trunk, in the empty space around the tree trunk, take an appropriate amount of fully moistened moss and pad it at the base of the Dendrobium chrysotoxum seedlings. Divide 60 Dendrobium chrysotoxum seedlings into 2 groups, with 30 seedlings in each group, and use coconut fiber bands to tightly bind and fix them to Tree Trunk B respectively 1 and Tree Trunk B 2 On the tree trunk, the layout points can be selected according to the needs of the presented landscape effect.

[0041] 3. Use long strips to bind and fix each group (4 Drynaria roosii plants and 4 Pleione bulbocodioides plants in each group) of tuber in a clump directly to Tree Trunk C respectively 1 and Tree Trunk C 2 On the tree trunk, each group of 4 Drynaria roosii plants and 4 Pleione bulbocodioides plants is arranged with a vertical stagger of 20 - 100 cm. After one week, when the Drynaria roosii and Pleione bulbocodioides have adapted to growing on the tree trunk, in the empty space around the tree trunk, take an appropriate amount of fully moistened moss and pad it at the base of the Dendrobium chrysotoxum seedlings. Divide 60 Dendrobium chrysotoxum seedlings into 2 groups, with 30 seedlings in each group, and use coconut fiber bands to tightly bind and fix them to Tree Trunk C respectively 1 and Tree Trunk C 2 On the tree trunk, the layout points can be selected according to the needs of the presented landscape effect.

[0042] Blank control group setting: For the control group, also select 3 Elaeocarpus apiculatus with a DBH of 30 - 40 cm as carriers, and mark them as Tree Trunk A 0 (DBH 30 cm), Tree Trunk B 0 (DBH 35 cm), Tree Trunk C 0 (DBH 40 cm). First, spray water on the tree trunk to keep the bark of each Elaeocarpus apiculatus moist. During cultivation, no nursing plants are added, and directly use coconut fiber bands to tightly bind and fix 3 groups (30 plants in each group) of Dendrobium chrysotoxum seedlings to Tree Trunk A 0 , Tree Trunk B 0 , Tree Trunk C 0On the tree trunk, the points for arrangement can be selected according to the requirements of the presented landscape effect.

[0043] Maintenance and management: When watering the newly planted Dendrobium chrysotoxum seedlings and the nursing plants for the first time, it is best to keep the cultivation substrate moist without water dripping; within the next week, when the temperature is 27°C - 30°C, spray water once around 10 am every day. When watering, soak the bark thoroughly, keep it dry when it's dry and wet when it's wet, and ensure that there is no water accumulation on the leaves of the Dendrobium chrysotoxum seedlings. After 1 month, when the Dendrobium chrysotoxum and the nursing plants are firmly attached to the tree trunk, the tied shading net strips can be removed. According to statistics, the survival rates of Dendrobium chrysotoxum on each carrier are successively (A 1 ) 96.67%, (A 2 ) 93.33%, (B 1 ) 76.67%, (B 2 ) 80.00%, (C 1 ) 86.67%, (C 2 ) 90.00%. The survival rates of Dendrobium chrysotoxum on each carrier in the control group are successively (A 0 ) 30.00%, (B 0 ) 36.67%, (C 0 ) 46.67%. It can be seen from this that when Drynaria roosii is used alone as the nursing plant, the survival rate of Dendrobium chrysotoxum is the highest (with an average of 95.00%); when Drynaria roosii and Pseudodrynaria coronans are combined as the nursing plant, the survival rate of Dendrobium chrysotoxum is the second highest (with an average of 88.33%); when Pseudodrynaria coronans is used alone as the nursing plant, the survival rate of Dendrobium chrysotoxum is the lowest (with an average of 78.33%). In the later stage, according to the nutritional requirements of the growth cycle of Dendrobium chrysotoxum, compound fertilizer can be put into a tea bag and tied to the roots of Drynaria roosii or Pseudodrynaria coronans, and the fertilizer can be diluted by watering and slowly released to the surrounding of the tree trunk surface for Dendrobium chrysotoxum to absorb and utilize. After 2 years of observation, the growth status and landscape effect of the Dendrobium chrysotoxum in the experimental group in the later stage are both good. However, the growth status of the Dendrobium chrysotoxum in the control group is not ideal. If the maintenance is not in place, death will occur, and the overall landscape effect is poor.

Claims

1. A method for quickly and three-dimensionally cultivating Dendrobium chrysotoxum using fern care plants, characterized in that, It includes the following steps: a. Material preparation: Select Dendrobium chrysotoxum seedlings with a plant height of over 15 cm, strong plants without diseases and pests, and Drynaria fortunei or Pseudodrynaria coronans plants with a plant height of 20 - 30 cm, intact tubers and vigorous growth for standby; b. Carrier selection: Select trees with lush branches and leaves, spreading crowns, strong tree trunks, and rough barks. First, spray the tree trunks with water to keep the barks moist; c. Planting of nursing plants: Use a long strip to directly attach the tubers of Drynaria fortunei and / or Pseudodrynaria coronans described in step a in a clump shape tightly against the bark, and tie and fix them to the carrier tree trunks described in step b; d. Substrate preparation: Immerse dry moss in a 5% - 10% compound fertilizer liquid, soak it thoroughly, and mix evenly for standby; e. Planting of Dendrobium chrysotoxum seedlings: Take an appropriate amount of the moss that has been evenly mixed and is fully moist in step d, pad it at the base of the Dendrobium chrysotoxum seedlings described in step a, and then tie and fix it tightly against the bark with coconut fiber tape. The distance between adjacent two plants is controlled at 15 - 50 cm, and the position is adjusted according to the needs of the shape or landscape effect, arranged in a scattered pattern; f. Watering the plants: When watering the newly planted Dendrobium chrysotoxum seedlings and nursing plants for the first time, keep the cultivation substrate moist without water dripping; g. Maintenance and management: After the Dendrobium and nursing plants grow and adhere tightly to the tree trunks, remove the coconut fiber tape.

2. The method according to claim 1, wherein The tree in step b has a diameter of over 20 cm.

3. The method according to claim 1, wherein The tree is Acacia mangium or Elaeocarpus apiculatus with a root - shoot ratio of 1:1.

5.

4. The method according to claim 1, wherein The tying and fixing to the carrier tree trunks in step b means surrounding the tree trunks with the tubers of Drynaria fortunei and / or Pseudodrynaria coronans in a circle, or fixing them according to a certain shape or pattern, leaving a certain space for planting Dendrobium chrysotoxum seedlings. The distance between Drynaria fortunei and / or Pseudodrynaria coronans and the Dendrobium seedlings is controlled at 10 - 100 cm; After one week, Drynaria fortunei and / or Pseudodrynaria coronans grow well on the carrier tree trunks in step b, creating a good growth environment, and the water - holding capacity is more than 1 time that without adding nursing plants, which is beneficial to water and fertilizer conservation.

5. The method according to claim 1, wherein In step f, after the first watering, within the next 1 week, if the temperature is higher than 30℃, spray water once a day; if the temperature is lower than 15℃, spray water once every two days. Water when it is dry and stop when it is wet, and keep the leaves of Dendrobium chrysotoxum without water accumulation.