Planting method for interplanting rhizoma bletillae in macadamia nut garden

Abstract

The invention provides a planting method for interplanting rhizoma bletillae in a macadamia nut garden, and belongs to the field of macadamia nut planting. Compared with macadamia nut trees without interplanting the rhizoma bletillae, the method for interplanting the rhizoma bletillae and the macadamia nut trees in the garden has the advantages that the growth amount of the macadamia nut trees is increased, and the growth amount difference in the aspects of tree height, diameter thickness and crown breadth is obvious because the macadamia nut trees absorb nutrition and moisture while the rhizoma bletillae is fertilized and watered, so that the yield of the macadamia nut trees is increased, and the yield of the macadamia nut trees is increased. They belong to a mutual promotion relationship. Meanwhile, the macadamia nuts and the rhizoma bletillae are interplanted, so that the output value per mu is increased.

Description

Technical Field

[0001] The present invention relates to the technical field of macadamia cultivation, and particularly to a cultivation method for interplanting Bletilla striata in a macadamia orchard. Background Art

[0002] Macadamia ternifolia, also known as Australian walnut, Hawaiian nut, etc., has rich and nutritious fruits that are crispy and delicious. It is known as the best edible nut in the world and has become one of the emerging fruit trees in the world today. In the international market, it has been in a state of long-term supply shortage, and the production potential of Macadamia ternifolia is very large and the prospect is broad.

[0003] Bletilla striata is a perennial medicinal herb of the genus Bletilla in the Orchidaceae family. It is a perennial herb with a plant height of 30 - 60 cm, shallow roots, fleshy, white tubers with 2 - 3 forks, in the shape of a water chestnut, with fibrous roots, often growing in clusters. Its main components have medicinal functions such as tonifying the lung, stopping bleeding, detumescence and promoting granulation, and anti-tumor. It is planted at places with an altitude of 600 - 1700 m, where bud differentiation and growth are fast, the plants grow vigorously, the tubers are large, and it can be harvested after 2 - 3 years of planting.

[0004] Macadamia ternifolia is a perennial cash crop and starts to bear fruit initially after 4 years. Therefore, the upfront investment of funds is large. In addition, in young orchards, the trees are small and the gaps are large, and the ecological control of weeds is a major problem. Therefore, the planting structure can be adjusted, the utilization rate of land space and natural resources can be improved, and the environment and soil structure in the orchard can be improved by co-planting crops with corresponding complementary characteristics in terms of morphology and growth characteristics.

[0005] How to further improve the soil utilization rate and improve the planting environment is the problem to be solved currently. Summary of the Invention

[0006] In view of this, the present invention provides a cultivation method for interplanting Bletilla striata in a macadamia orchard. By interplanting Bletilla striata in the macadamia orchard, the land resources are fully utilized to increase efficiency and income, increase economic benefits, effectively inhibit the growth of weeds at the same time, achieve the purpose of ecological weed control, and ensure the edible safety of Macadamia ternifolia.

[0007] The cultivation method for interplanting Bletilla striata in the macadamia orchard includes the following steps:

[0008] (1) Site selection:

[0009] Select a sloping land with a slope of 5° - 25°, build contour terraces, the width of the terrace surface is 2.5 - 3.5 m, the terrace surface is flat, and the outer edge of the terrace is built with subsoil to form a ridge;

[0010] (2) Seedling selection:

[0011] Macadamia seedlings are: ground diameter > 0.5 cm, seedling height > 40 cm, plump buds, and free from diseases and pests;

[0012] Bletilla striata seedlings are: having 3 - 5 leaves, seedling height above 15 cm, diameter of pseudobulbs with buds above 1.5 cm, and being healthy seedlings without diseases, pests and damage;

[0013] (3) Site preparation:

[0014] After the garden is prepared and sundries are cleared, organic fertilizer and superphosphate are applied at the end of May. After being thoroughly mixed with the soil, furrows are opened to form ridges, and then holes are dug. The organic fertilizer and calcium superphosphate are thoroughly mixed with the topsoil and backfilled. The surface of the hole is 5 - 10 cm higher than the ground;

[0015] (4) Planting:

[0016] Macadamia is planted in June - July, and variety matching is carried out according to 1:1 or 2:2; backfill soil layer by layer to make the soil in good contact with the roots, compact from the inside to the outside, and pour sufficient root - fixing water;

[0017] After the macadamia seedlings are planted, lay weed - proof cloth on the ridge, press soil around the weed - proof cloth, and then punch holes in the weed - proof cloth with a hole diameter of 10 - 15 cm; plant Bletilla striata in the punched holes, cover the soil with 4 - 10 cm, and then spray with chlorothalonil solution for sterilization;

[0018] (5) Fertilizer and water management:

[0019] Water is poured once every 5 - 7 days in winter and spring to keep the soil moisture content at 15% - 20%. Bletilla striata has seedlings emerging while withering in winter; during the growth peak season when the new buds of Bletilla striata emerge and unfold leaves, fertilize once a month; when the leaves grow old and no longer change, apply high - potassium fertilizer once, and at the same time apply decomposed sheep manure once;

[0020] Sheep manure is not applied to those harvested in the current year;

[0021] Macadamia trees do not need to be watered and fertilized separately;

[0022] (6) Field management

[0023] For 1 - 3 - year - old young macadamia trees, carry out topping, generally with a topping height of 50 - 60 cm. Select three strong branches in different directions as the future main growth branches, and top the branches with strong apical dominance to quickly cultivate a high - yield tree crown; for 4 - year - old and above macadamia trees, cultivate the three selected main branches, and remove the remaining branches. Select 2 - 3 strong and evenly distributed branches from the three main branches to cultivate into backbone branches, with a distance of 40 - 50 cm between the backbone branches. Subsequently, select secondary and tertiary branches in this way to cultivate an ideal tree crown; paint the tree trunks white every November - December;

[0024] Starting from the second year after the planting of Bletilla striata, the flower branches need to be manually removed from March to May every year to reduce nutrient consumption and promote the growth of tubers.

[0025] (7) Harvesting of Bletilla striata tubers

[0026] After 3 - 4 years of planting Bletilla striata, when the above - ground stems wither in September - October, it is time to dig.

[0027] Preferably, for the variety of Macadamia integrifolia in step (2), select Guire 1, A4, A16, 791; for Bletilla striata, select the excellent clone of "Pu'er 1" Bletilla striata or the excellent clone of "Puke 1" Bletilla striata.

[0028] Preferably, the organic fertilizer in step (3) is composed of the following raw materials by mass: 30 - 35 parts of peat, 20 - 25 parts of cinder, 45 - 50 parts of sheep manure, 25 - 30 parts of wood chips, 5 - 6 parts of superphosphate; the application rate of the organic fertilizer is 800 - 1000 kg per mu;

[0029] The application rate of the single superphosphate is 100 - 150 kg per mu. In the specific embodiment of the present invention, the single superphosphate is purchased from Hebei Xianzheng Agricultural Science and Technology Co., Ltd., granular type: available phosphorus ≥ 12%, water - soluble phosphorus ≥ 7%, sulfur ≥ 8%, calcium ≥ 10%

[0030] Preferably, for the trenching and ridging in step (3), the ridge width is 90 - 100 cm, the ridge height is 15 - 20 cm, and the footpath is 30 - 40 cm.

[0031] Preferably, the size of the hole in step (3) is 70 - 80 cm in length, 70 - 80 cm in width, and 70 - 80 cm in height; the spacing of the holes is set according to the plant spacing of Macadamia integrifolia.

[0032] Preferably, for the planting in step (4), 20 - 22 plants of Macadamia integrifolia are planted per mu; the planting density of Bletilla striata in step (4) is 4500 - 6000 plants per mu; the planting distance of Bletilla striata from the Macadamia integrifolia plants is 20 - 35 cm.

[0033] Preferably, for chlorothalonil in step (4), 100 grams of chlorothalonil wettable powder is used per mu.

[0034] Preferably, the fertilizers top - dressed in step (5) include compound fertilizer and water - soluble fertilizer; fertilization is carried out in February, April, June, and August every year; the application rate of the compound fertilizer is 20 - 40 kg / mu; the water - soluble fertilizer is amino acid water - soluble fertilizer, and the application method is leaf spraying, and the application rate is 50 - 75 liters of 1% - 2% aqueous solution per mu.

[0035] Preferably, the high-potassium fertilizer described in step (5) is a high-potassium fertilizer with a N:P2O5:K2O ratio of 16-5-24, and the application rate is 20-40 kg / mu; the application rate of the sheep manure is 1500 kg / mu.

[0036] Compared with the prior art, the present invention has the following beneficial effects:

[0037] The present application provides a planting method for interplanting Bletilla striata in an Australian macadamia orchard. In this method, Bletilla striata and Australian macadamia trees are interplanted in the orchard. Compared with the Australian macadamia trees without interplanting Bletilla striata, the growth of the Australian macadamia trees is improved, and the growth differences in tree height, stem diameter, and crown width are obvious. This is because while fertilizing and watering Bletilla striata, the Australian macadamia trees also absorb nutrients and water, and they have a mutually promoting relationship. At the same time, interplanting young Australian macadamia trees with Bletilla striata increases the per-mu output value. Specific embodiments

[0038] The present invention will be further described below in conjunction with embodiments.

[0039] Embodiment 1

[0040] A planting method for interplanting Bletilla striata in an Australian macadamia orchard is as follows:

[0041] (1) Site selection:

[0042] The selected test area is located in Mandeng Mountain, Nuozhadu Town, Lancang County, at 100.27°E and 22.53°N, with an altitude of 1495 m and a slope of 6°-8°; the climate is a subtropical mountain monsoon climate, with abundant rainfall, sufficient sunshine, no severe cold in winter, no intense heat in summer, distinct dry and rainy seasons, an average annual temperature of 17-19°C, an annual rainfall of 1400 mm, and annual sunshine of more than 2100 h; it has the characteristics of sufficient water source, deep, fertile, loose, and moist soil. Contour terraces are built, with the width of the terrace surface between 2.5 and 3.5 m, the terrace surface is flat, and the outer edge of the terrace is built with subsoil ridges;

[0043] (2) Seedling selection:

[0044] For Australian macadamia, varieties such as Guire 1 and A4 are selected for planting, with a ground diameter > 0.5 cm, a seedling height > 40 cm, plump buds, and no pests or diseases;

[0045] For Bletilla striata seedlings, the excellent asexual clone variety "Pu'er No. 1" Bletilla striata is selected, with 3-5 leaves, a seedling height of more than 15 cm, a pseudobulb diameter with buds of more than 1.5 cm, and no pests, diseases, or damage, and healthy seedlings;

[0046] (3) Land preparation:

[0047] After the garden plot is leveled and sundries are cleared, 1000 kg of organic fertilizer is applied per mu (composed of the following raw materials by mass: 30 parts of peat, 20 parts of cinder, 50 parts of sheep manure, 30 parts of sawdust, and 5 parts of superphosphate); 100 - 150 kg / mu of ordinary superphosphate is applied, and after being thoroughly mixed with the soil, furrows are dug and ridges are formed; the ridge width is 90 cm, the ridge height is 10 - 15 cm, and the footpath is 30 - 40 cm; after the ridges are formed, holes are dug on the ridges (with a length of 70 - 80 cm, a width of 70 - 80 cm, and a height of 70 - 80 cm), and the spacing of the ponds is set according to the plant spacing of Macadamia integrifolia being 5 m and the row spacing being 6 m; and the topsoil and subsoil are separately stacked. At the same time, 10 kg of the preparation raw materials of the organic fertilizer by mass (30 parts of peat, 20 parts of cinder, 50 parts of sheep manure, 30 parts of sawdust) and 5 kg of superphosphate are thoroughly mixed with the topsoil and backfilled into the holes, and the hole surface is 5 - 10 cm higher than the ground surface.

[0048] (4) Planting:

[0049] When planting in June 2021, Macadamia integrifolia GuiRe No. 1 and A4 are selected and matched in a 1:1 ratio among varieties. Backfill the soil layer by layer to make the soil contact the roots well, compact from the inside to the outside, and pour enough root - fixing water; 20 - 22 plants are planted per mu of Macadamia integrifolia;

[0050] After the Macadamia integrifolia seedlings are planted, lay anti - weed cloth on the ridges, and press soil around the anti - weed cloth to prevent it from being blown away by the wind. Then punch holes in the anti - weed cloth, and the hole diameter is 10 - 15 cm; plant Bletilla striata in the punched holes, cover the soil with 4 - 10 cm, and the planting density of Bletilla striata is 6000 plants per mu; the average distance between Bletilla striata and Macadamia integrifolia plants is 25 cm (the distance between a single Bletilla striata plant and a Macadamia integrifolia plant is 20 - 35 cm); then spray bactericide with chlorothalonil solution (100 grams of 75% chlorothalonil wettable powder, add water to 70 liters, stir evenly and spray);

[0051] (5) Fertilizer and water management:

[0052] Water is poured once every 5 - 7 days in winter and spring to keep the soil moist, and the average soil moisture content is 16.5%. In winter, Bletilla striata has seedlings while withering. During the growth peak season when the new buds of Bletilla striata emerge and unfold their leaves, fertilizer is top - dressed once each month in February, April, and June every year. The fertilizers are compound fertilizer (produced by Huaiyang Andetai Crop Protection Co., Ltd., Yifengshou N:P2O5:K2O (20 - 20 - 20 + TE) compound fertilizer) and water - soluble fertilizer (Aofengyuan amino acid water - soluble fertilizer, produced by Henan Aofengyuan Agricultural Chemical Co., Ltd., amino acid ≥ 100 g / L; Mn + Zn + B ≥ 20 g / L). Among them, the application rate of the compound fertilizer is 20 kg / mu, and the application rate of the water - soluble fertilizer is 3 kg per mu diluted with 50 liters of water. When the leaves grow old and no longer change in August, apply high - potassium fertilizer (high - potassium fertilizer with an N:P2O5:K2O ratio of 16 - 5 - 24) once, with an application rate of 30 kg / mu, and at the same time apply decomposed sheep manure (1500 kg / mu). For those harvested in the current year, no sheep manure is applied;

[0053] Macadamia trees do not require separate fertilization;

[0054] (6) Field management

[0055] For young macadamia trees aged 1 - 3 years, the main task is to determine the trunk height. Generally, the trunk height is set at 50 - 60 cm. Select three branches with strong growth and in different directions as the main growth branches in the future. Prune the branches with strong apical dominance to quickly cultivate a high - yield tree crown. For macadamia trees aged 4 years and above, the main task is to cultivate the three selected main branches, and the remaining branches should be removed. Select 2 - 3 branches with strong growth and evenly distributed from the three main branches to cultivate into backbone branches, with a distance of 40 - 50 cm between the backbone branches. In the future, select the second - and third - level branches according to this method to cultivate an ideal tree crown; Paint the tree trunks white from November to December every year;

[0056] Starting from the second year after the planting of Bletilla striata, artificial removal of flower branches is required from March to May every year to reduce nutrient consumption and promote the growth of tubers.

[0057] (7) Harvesting of Bletilla striata tubers

[0058] After 3 years of planting Bletilla striata, when the above - ground stems wither in September - October, carry out digging.

[0059] Examples 2 - 3

[0060] The intercropping method of macadamia nuts and Bletilla striata in Example 1 is adopted. The difference is that the distance between Bletilla striata and young macadamia trees is different in different examples. The specific experimental settings of the distance between Bletilla striata and young macadamia trees in different examples, as well as the distance between a single Bletilla striata plant and macadamia nut plants, are shown in Table 1:

[0061] Table 1

[0062]

[0063] Investigate the yield of Bletilla striata intercropped with macadamia nut trees. The analysis results are shown in Table 2 below.

[0064] Table 2

[0065]

[0066]

[0067] It can be seen from Table 2 above that when Bletilla striata is intercropped with macadamia nut trees, there is a significant impact on the yield of Bletilla striata when it is dug after 3 years under the macadamia nut forest. The difference in the average yield per mu between Example 1 and other examples is 99 kg and 191 kg respectively. It can be seen that being too close affects the yield of Bletilla striata.

[0068] Comparative Example 1

[0069] A planting method for Macadamia integrifolia is as follows:

[0070] (1) Site selection: The same as in Example 1;

[0071] (2) Seedling selection:

[0072] The Macadamia integrifolia selection is the same as in Example 1;

[0073] (3) Land preparation: The same as in Example 1;

[0074] (4) Planting:

[0075] When planting in June 2021, make a variety combination according to 1:1. Backfill the soil in layers to make the soil in good contact with the roots, compact from the inside to the outside, pour enough root-fixing water to complete the planting of Macadamia integrifolia seedlings; 20 - 22 plants are planted per mu of Macadamia integrifolia;

[0076] Lay the weed-proof cloth on the ridge and press the soil around the weed-proof cloth to prevent it from being blown away by the wind. Then punch holes in the weed-proof cloth, with the hole diameter being 10 - 15 cm. Plant Bletilla striata in the punched holes, cover the soil with 4 - 10 cm, and the planting density of Bletilla striata is 6000 plants per mu;

[0077] Then spray and sterilize with chlorothalonil solution (100 grams of 75% chlorothalonil wettable powder, add 70 liters of water, stir evenly and spray);

[0078] (5) Fertilizer and water management:

[0079] For Macadamia integrifolia, every year in combination with winter orchard cleaning and green manure application, 10 - 30 kg of the preparation raw materials of organic fertilizer per plant in mass parts (30 parts of peat, 20 parts of cinder, 50 parts of sheep manure, 5 parts of superphosphate, 30 parts of wood chips) and 0.3 - 2 kg of compound fertilizer N:P2O5:K2O (16 - 5 - 24) are used, and the amount of fertilizer used is determined according to the annual fruit yield.

[0080] Do a good job in weeding the nut orchard from April to June every year.

[0081] The Macadamia integrifolia trees interplanted with Bletilla striata do not need to be fertilized or weeded separately;

[0082] (6) Field management

[0083] For 1 - to 3 - year - old macadamia nut saplings, the main task is to determine the trunk height. Generally, the trunk height is set at 50 - 60 cm. Select three robust branches in different directions to be the main growth branches in the future. For branches with strong apical dominance, top them to quickly cultivate a high - yield tree crown. For macadamia nut trees over 4 years old, mainly cultivate the three selected main branches, and remove the remaining branches. Then select 2 - 3 robust and evenly distributed branches from the three main branches to cultivate into backbone branches, with a spacing of 40 - 50 cm between the backbone branches. In the future, select secondary and tertiary branches according to this method to cultivate an ideal tree crown. Whitewash the tree trunks from November to December every year;

[0084] Investigate the growth of 1 - to 3 - year - old macadamia nut trees in orchards with and without Bletilla striata intercropping, including tree height, ground diameter, and crown width; investigate the yield of 3 - year - old Bletilla striata intercropped with macadamia nut trees.

[0085] Investigate the tree height, diameter, crown width, etc. of 30 1 - year - old, 2 - year - old, and 3 - year - old macadamia nut trees with (Example 1) and without (Control Example 1) Bletilla striata intercropping. The analysis results are shown in Table 3.

[0086] Table 3 Growth of macadamia nut trees with and without Bletilla striata intercropping

[0087]

[0088] As can be seen from Table 3 above, when 22 macadamia nut trees are planted per mu, intercropping Bletilla striata in the macadamia nut orchard has no impact on the survival rate of macadamia nut trees, and the survival rate is 100% in both cases. In terms of growth, the average growth of macadamia nut trees intercropped with Bletilla striata is greater than that of macadamia nut trees without Bletilla striata intercropping. Macadamia nut trees intercropped with Bletilla striata in the orchard can not only well promote the growth of macadamia nut trees, but also do not require separate watering and fertilization management after intercropping with Bletilla striata, reducing the cost compared with single - management of macadamia nuts.

[0089] The above - mentioned is only the preferred embodiment of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A planting method for interplanting Bletilla striata in macadamia orchards, characterized in that, It includes the following steps: (1) Site selection: Select sloping land with a slope of 5° - 25°, build contour terraces, the width of the terrace surface is 2.5 - 3.5 m, the terrace surface is flat, and the outer edge of the terrace is built with subsoil ridges; (2) Seedling selection: The macadamia seedlings are: ground diameter > 0.5 cm, seedling height > 40 cm, plump buds, and free of pests and diseases; The Bletilla striata seedlings are: with 3 - 5 leaves, seedling height above 15 cm, diameter of the pseudobulbs with buds above 1.5 cm, and healthy seedlings without pests, diseases or damage; (3) Site preparation: After site preparation and debris cleaning of the garden, apply organic fertilizer and superphosphate at the end of May. After thoroughly mixing with the soil, open ditches to form ridges, then start digging holes, and thoroughly mix the organic fertilizer and calcium superphosphate with the topsoil and backfill. The hole surface is 5 - 10 cm higher than the ground; (4) Planting: Macadamia is planted in June - July, and the varieties are matched at a ratio of 1:1 or 2:2; backfill the soil layer by layer to make the soil in good contact with the roots, compact from the inside to the outside, and pour sufficient root - fixing water; After the macadamia seedlings are planted, lay weed - proof cloth on the ridges, press the soil around the weed - proof cloth, and then punch holes in the weed - proof cloth with a hole diameter of 10 - 15 cm; plant Bletilla striata in the punched holes, cover the soil with 4 - 10 cm, and then spray with chlorothalonil solution for sterilization; (5) Fertilizer and water management: Water once every 5 - 7 days in winter and spring to keep the soil moisture content at 15% - 20%. In winter, Bletilla striata has seedlings emerging while withering; during the growth peak season when the new buds of Bletilla striata emerge and unfold leaves, apply fertilizer once a month; when the leaves grow old and no longer change, apply high - potassium fertilizer once, and at the same time apply decomposed sheep manure once; Sheep manure is not applied to those harvested in the current year; Macadamia trees do not need to be watered or fertilized separately; (6) Field management For 1 - 3 - year - old macadamia saplings, top - pruning is carried out, generally with a top - pruning height of 50 - 60 cm. Select three strong branches in different directions as the future main growth branches. Prune the branches with strong apical dominance to quickly cultivate a high - yield tree crown; for macadamia trees over 4 years old, cultivate the selected three main branches, and remove the remaining branches. Select 2 - 3 strong and evenly distributed branches from the three main branches to cultivate into backbone branches, with a distance of 40 - 50 cm between the backbone branches. In the future, select the second - and third - level branches in this way to cultivate an ideal tree crown; paint the tree trunks white every November - December; Starting from the second year after the Bletilla striata is planted, in March - May every year, manually remove the flower branches to reduce nutrient consumption and promote tuber growth. (7) Harvest of Bletilla striata tubers After Bletilla striata is planted for 3 - 4 years, when the above - ground stems wither in September - October, carry out digging.

2. The planting method of interplanting Bletilla striata in macadamia nut orchards according to claim 1, wherein For the macadamia varieties described in step (2), select Guire 1, A4, A16, 791; for Bletilla striata, select the excellent clone of "Pu'er 1" Bletilla striata or the excellent clone of "Puke 1" Bletilla striata.

3. The planting method of interplanting Bletilla striata in macadamia nut orchards according to claim 1, characterized in that, The organic fertilizer described in step (3) is composed of the following raw materials by mass: 30 - 35 parts of peat, 20 - 25 parts of cinder, 45 - 50 parts of sheep manure, 25 - 30 parts of wood chips, 5 - 6 parts of calcium superphosphate; the application amount of the organic fertilizer is 800 - 1000 kg per mu; The application amount of the superphosphate is 100 - 150 kg per mu.

4. The planting method of interplanting Bletilla striata in macadamia nut orchards according to claim 1, characterized in that, The furrowing and ridging in step (3): the ridge width is 90-100 cm, the ridge height is 15-20 cm, and the walking path is 30-40 cm.

5. The planting method of interplanting Bletilla striata in macadamia nut orchards according to claim 1, characterized in that, The size of the hole in step (3) is 70-80 cm in length, 70-80 cm in width, and 70-80 cm in height; the spacing between the holes is set according to the plant spacing of macadamia nuts.

6. The planting method of interplanting Bletilla striata in macadamia nut orchards according to claim 1, characterized in that, For the planting in step (4), 20-22 macadamia nuts are planted per mu; the planting density of Bletilla striata in step (4) is 4500-6000 plants per mu; the planting distance of Bletilla striata from the macadamia nut plants is 20-35 cm.

7. The planting method of interplanting Bletilla striata in Macadamia integrifolia orchards according to claim 1, wherein, For chlorothalonil in step (4), 100 grams of chlorothalonil wettable powder is used per mu.

8. The planting method of interplanting Bletilla striata in macadamia nut orchards according to claim 1, characterized in that, The fertilizers topdressed in step (5) include compound fertilizer and water-soluble fertilizer; fertilization is carried out in February, April, June, and August every year; the application rate of the compound fertilizer is 20-40 kg / mu; the water-soluble fertilizer is amino acid water-soluble fertilizer, and the application method is leaf spraying, and the application rate is 50-75 liters of 1%-2% aqueous solution per mu.

9. The planting method of interplanting Bletilla striata in macadamia nut orchards according to claim 1, characterized in that, The high-potassium fertilizer in step (5) is a high-potassium fertilizer with a ratio of N:P2O5:K2O of 16-5-24, and the application rate is 20-40 kg / mu; the dosage of sheep manure is 1500 kg / mu.

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