Interplanting method of eagle tea

Abstract

The invention discloses a method for intercropping eagle tea, which belongs to the technical field of intercropping eagle tea. The method comprises the following steps: (1) land preparation: deep plowing the land and applying base fertilizer; (2) transplanting eagle tea: transplanting eagle tea cuttings; (3) planting gesneriaceae: planting gesneriaceae along the main trunk under the eagle tea plants; and (4) post-management: after the gesneriaceae are planted, a root secretion promoter is regularly sprayed on the gesneriaceae, and appropriate fertilization, watering and pruning are performed, thereby solving the problem of low survival rate of transplanted eagle tea.

Description

Technical Field

[0001] The invention relates to the technical field of interplanting of eagle tea, in particular to an interplanting planting method of eagle tea. Background Art

[0002] Eagle tea (Litsea coreana Levl. var. lanuginose), a member of the Lauraceae family, has excellent medicinal and edible properties. Its drought- and wind-resistance makes it suitable for use as a mixed forest species in difficult mountainous areas for soil and water conservation, windbreaks, and sand fixation, as well as scenic forests. Gesneriaceae (Conandron ramondioides S. et Z.), a member of the Gesneriaceae family and the genus Gesneriaceae, primarily grows on rocks along streams in valleys and on shady, moist rocky cliffs in forested hillsides at altitudes of 600-1000 meters. It has detoxifying properties and can be used as a medicinal herb.

[0003] The survival rate of eagle tea is generally low during transplanting, primarily due to factors such as seedling quality, site conditions, and climate and moisture conditions. For example, poor seedling quality can lead to disease or poor growth, resulting in a low survival rate. Furthermore, eagle tea requires high water requirements and has low resistance to water, making it difficult to adapt to new soils and climates. This results in widespread wilting and death in many newly planted eagle tea trees. Trace elements or nutrients in the soil also have a significant impact on eagle tea survival. Intercropping, a method of planting crops in a specific proportion on the same field, is a complex planting technique. Its yield-increasing effect depends on a variety of factors, including the selected crop combination, soil conditions, and climate. The choice of intercropping crops is not arbitrary. While some intercropping crops can optimize land utilization and increase yield, inappropriate intercropping can increase intraspecific and interspecific competition, leading to mutual inhibition and reduced yield. For example, common tomatoes and cucumbers are not suitable for intercropping. These two crops will have a negative impact on each other's growth and development, leading to fruit deformities and premature aging of seedlings, thus affecting yield.

[0004] Therefore, how to select crops to be interplanted with the eagle tea and how to improve the transplant survival rate of the eagle tea after interplanting are technical problems that need to be solved urgently. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a method for intercropping eagle tea, specifically using gesneriaceae and eagle tea for intercropping, which not only solves the problem of transplanting survival rate during intercropping of eagle tea, but also solves the problem of improving land utilization.

[0006] The present invention solves the above technical problems through the following technical means:

[0007] (1) Land preparation: Select cliff soil at an altitude of 580-1000m, prepare the land and deep plow it to a depth of 30-35cm, and apply decomposed organic fertilizer 15-20 days in advance at a rate of 1000-1200kg per mu;

[0008] (2) Transplanting of Eagle Tea: Transplant the Eagle Tea seedlings with a spacing of (2-2.2) × (2-2.2) m. Cut off the unlignified leaves and tender shoots of the current year, water them thoroughly to allow them to establish roots. The water should seep outwards. Cover the soil and compact it. Spray each plant with a mixture of 500 times diluted potassium fulvic acid and 1000 times diluted naphthaleneacetic acid rooting powder.

[0009] (3) Planting of Gesneriaceae: Plant Gesneriaceae in a circular pattern with a spacing of 15×15 cm under the main trunk of the Eagle Tea plant, with a planting area of ​​1.5-2m 2 , after planting, water thoroughly to establish roots;

[0010] (4) Post-management: After the gesnerium is planted, it should be sprayed with root secretion promoter regularly, and appropriate fertilization, watering and pruning should be carried out.

[0011] Furthermore, 3 days after the gesnerium is planted, the root secretion promoter is sprayed on the root of the gesnerium. Specifically, the root secretion promoter is diluted 10 times and sprayed on the root of the gesnerium. The root secretion promoter is sprayed once every 7-10 days for a total of one month. The amount used each time is 100-120g / m 2 .

[0012] Interplanting eagle tea with gesnerium moss can help prevent nutrient competition with eagle tea. Furthermore, the sugars, amino acids, and polyphenols secreted by gesnerium moss roots can promote the growth of eagle tea and increase its transplant survival rate. Furthermore, interplanting eagle tea with gesnerium moss can effectively reduce soil evaporation, maintain soil moisture, and improve soil water retention.

[0013] Furthermore, the transplanting time of the eagle tea in step (2) is March to April in spring or September to October in autumn, the transplanting temperature is 25-30° C., and the transplanting climate is cloudy.

[0014] Furthermore, the primrose in step (3) is one of the primrose of white leather, primrose of large root, primrose of Libo, and primrose of Liujiang.

[0015] Furthermore, the time for transplanting the Gesneriaceae in step (3) is within 3 days after the transplanting of the Eagle Tea is completed.

[0016] Furthermore, the fertilizing operation in step (4) is as follows: compounding the decomposed organic fertilizer and trace elements (iron, manganese, boron) and then fertilizing, and fertilizing once every month, with the amount of each fertilizing being 100-150 kg per mu.

[0017] Spraying root secretion promoters can promote root secretion, but excessive root secretion can damage the roots themselves and affect the growth of the gesneriaceae. Therefore, it is necessary to properly fertilize the gesneriaceae to supplement the nutrients and trace elements required for its growth to promote its normal growth.

[0018] Furthermore, the raw materials of the root secretion promoter are as follows: sodium persulfate, glutamic acid, potassium sorbate, sodium nitrite, alkyl alcohol polyoxyethylene ether, and pectin.

[0019] Furthermore, the ratio of each raw material of the root secretion promoter is as follows: the mass ratio of sodium persulfate, glutamic acid, potassium sorbate, sodium nitrite, alkyl alcohol polyoxyethylene ether, and pectin is (0.1-0.12): (1-1.2): (1-1.5): (0.6-0.8): (0.6-0.7) (1.2-1.5).

[0020] Furthermore, the preparation method of the root secretion promoter is as follows:

[0021] Pectin is added to deionized water, heated to 50-60°C, and stirred at 250-300 rpm for 10-15 minutes. Then, sodium nitrite, alkyl alcohol polyoxyethylene ether, potassium sorbate, and glutamic acid are added, and the stirring is continued. Then, sodium persulfate is added, and the mixture is stirred evenly and cooled to room temperature to obtain a root secretion promoter.

[0022] Sodium persulfate and glutamic acid are added to the root secretion promoter, which can promote the synthesis of organic molecules such as organic acids, amino acids, sugars, and phenols in the root cells of gesnerium, providing sufficient nutrients for the growth of eagle tea, while also increasing the stress resistance of eagle tea and improving the survival rate of eagle tea. Sodium nitrite and potassium sorbate are also added to the root secretion promoter, which synergistically increase the permeability of the cell membrane of the gesnerium root system, thereby promoting the overflow of organic molecules synthesized in the root cells and promoting the diffusion of secretions into the soil, forming organic compound molecules and high-molecular-weight colloids. However, excessive organic acid secretion by the roots can promote the dissolution of heavy metals in the soil, then form soluble complexes with heavy metal ions in the soil, increasing the mobility of heavy metal ions in the soil, and can activate heavy metal ions, making them more easily absorbed by the roots. After being absorbed by the roots of eagle tea, excessive heavy metal ions have a toxic effect on the roots of eagle tea, thereby inhibiting the growth of eagle tea. Therefore, pectin and alkyl alcohol polyoxyethylene ether are added to the root secretion promoter. After spraying, the root secretion promoter penetrates into the soil. The free heavy metal ions in the soil are combined with the alkyl alcohol polyoxyethylene ether and fixed in the gel-like pectin to form large-particle gel-like complexes, which inhibit the movement of heavy metal ions and reduce the free heavy metal content, thereby reducing the absorption of heavy metal ions by the roots of Eagle Tea.

[0023] Beneficial effects:

[0024] The present invention intercrops eagle tea with gesnerium, which can effectively reduce the evaporation of water in the soil and maintain soil and moisture. The leaves of gesnerium are dense and grow almost close to the ground, which can effectively inhibit the growth of weeds and save the cost of manual weeding and the damage caused by chemical weeding. In addition, gesnerium has shallow roots and the root fertilizer requirement is small, so it does not compete with eagle tea for fertilizer, and the fallen leaves close to the ground every year can also provide fertility for eagle tea. The present invention also uses secretion promoters to promote the release of secretions from the roots of gesnerium, which can effectively improve soil properties, promote the absorption of nutrients in the soil by eagle tea, and promote the growth of eagle tea. At the same time, the flowers and leaves of the screened gesnerium varieties have high ornamental value, which is conducive to the development of the "forest-tea" forest health care industry under the eagle tea plantation. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 :This is the picture of Gesneriaceae after transplantation. DETAILED DESCRIPTION

[0026] The present invention will be described in detail below with reference to specific embodiments:

[0027] Example 1: Planting method of intercropping gesneriaceae with eagle tea

[0028] Preparation of root secretion promoter:

[0029] Add 1.2 g of pectin to 120 ml of deionized water, heat to 50°C, and stir at 250 rpm for 10 min. Then add 0.6 g of sodium nitrite, 0.6 g of alkyl alcohol polyoxyethylene ether, 1 g of potassium sorbate, and 1 g of glutamic acid. Continue to stir evenly. Then add 0.1 g of sodium persulfate, stir evenly, and cool to room temperature to obtain a root secretion promoter.

[0030] Planting method of Eagle Tea intercropping with Gesneriaceae:

[0031] (1) Land preparation: Select cliff soil at an altitude of about 600m, prepare the land and deep plow it to a depth of about 30cm, and apply decomposed organic fertilizer 15 days in advance at a rate of 1000kg per mu;

[0032] (2) Transplanting of Eagle Tea: Transplanting of Eagle Tea should be carried out in April in spring. Transplanting should be carried out when the temperature is around 25℃ and the weather is cloudy. Select one-year-old Eagle Tea seedlings and transplant them with a spacing of about 2×2m. Cut off the young leaves and tender shoots that have not yet become lignified. Water thoroughly to allow the roots to seep outwards. Cover the soil and compact it. Spray each plant with a mixture of 500 times diluted potassium fulvic acid and 1000 times diluted naphthaleneacetic acid rooting powder.

[0033] (3) Planting of Gesneriaceae: Select one-year-old Liujiang Primrose Gesneriaceae and transplant them on the second day after the Eagle Tea plant is transplanted. Plant Gesneriaceae in a circle along the main trunk with a spacing of about 10 cm between the main trunk and with a planting area of ​​1.5 m 2 After planting, water thoroughly to establish roots.

[0034] (4) Post-management: 3 days after the completion of the planting of gesnerium, dilute the root secretion promoter 10 times and spray it on the roots of gesnerium. Spray it once every 7 days for a total of one month. The amount used each time is 100g / m 2 , mix decomposed organic fertilizer and trace elements (iron, manganese, boron) in a ratio of 50:1 and then use it for supplementary fertilizer. The mass ratio of iron, manganese and boron is 2:1:1. Supplementary fertilizer is carried out every month after planting, and the amount of fertilizer each time is 100kg per mu. Appropriate watering and pruning are carried out in the later stage.

[0035] Example 2: Planting method 2 of intercropping gesneriaceae with eagle tea

[0036] Preparation of root secretion promoter:

[0037] Add 1.3 g of pectin to 130 ml of deionized water, heat to 55°C, and stir at 280 rpm for 13 minutes. Then add 0.7 g of sodium nitrite, 0.65 g of alkyl alcohol polyoxyethylene ether, 1.3 g of potassium sorbate, and 1.1 g of glutamic acid. Continue to stir evenly. Then add 0.11 g of sodium persulfate, stir evenly, and cool to room temperature to obtain a root secretion promoter.

[0038] Planting method of Eagle Tea intercropping with Gesneriaceae:

[0039] (1) Land preparation: Select cliff soil at an altitude of about 600m, prepare the land and deep plow it to a depth of about 33cm. Apply decomposed organic fertilizer 18 days in advance at a rate of 1100kg per mu.

[0040] (2) Transplanting of Eagle Tea: Transplanting of Eagle Tea should be carried out in April in spring. Transplanting should be carried out when the temperature is around 28℃ and the weather is cloudy. Select one-year-old Eagle Tea seedlings and transplant them with a spacing of about 2.1m×2.1m. Cut off the young leaves and tender shoots that have not yet become lignified. Water thoroughly to allow the roots to seep outwards. Cover the soil and compact it. Spray each plant with a mixture of 500 times diluted potassium fulvic acid and 1000 times diluted naphthaleneacetic acid rooting powder.

[0041] (3) Planting of Gesneriaceae: Select one-year-old Liujiang Primula and transplant it on the second day after the Eagle Tea plant is transplanted. Plant Gesneriaceae in a circle with a spacing of 15×15 cm along the main trunk and about 13 cm between the main trunk under the Eagle Tea plant. The planting area is 1.8m 2 After planting, water thoroughly to establish roots.

[0042] (4) Post-management: 3 days after the completion of the planting of gesnerium, dilute the root secretion promoter 10 times and spray it on the roots of gesnerium. Spray it once every 8 days for a total of one month. The amount used each time is 110g / m 2 , mix decomposed organic fertilizer and trace elements (iron, manganese, boron) in a ratio of 50:1 and then use it for supplementary fertilizer. The mass ratio of iron, manganese and boron is 2:1:1. Supplementary fertilizer is carried out every month after planting, and the amount of fertilizer each time is 130kg per mu. Appropriate watering and pruning are carried out in the later stage.

[0043] Example 3: Planting method 3 of intercropping gesneriaceae with eagle tea

[0044] Preparation of root secretion promoter:

[0045] 1.5 g of pectin was added to 150 ml of deionized water, heated to 60°C, and stirred at 300 rpm for 15 minutes. Then, 0.8 g of sodium nitrite, 0.7 g of alkyl alcohol polyoxyethylene ether, 1.5 g of potassium sorbate, and 1.2 g of glutamic acid were added, and the mixture was stirred evenly. Subsequently, 0.12 g of sodium persulfate was added, stirred evenly, and cooled to room temperature to obtain a root secretion promoter.

[0046] Planting method of Eagle Tea intercropping with Gesneriaceae:

[0047] (1) Land preparation: Select cliff soil at an altitude of about 600m, prepare the land and deep plow it to a depth of about 35cm, and apply decomposed organic fertilizer 20 days in advance at a rate of 1200kg per mu;

[0048] (2) Transplanting of Eagle Tea: Transplanting of Eagle Tea should be carried out in April in spring. Transplanting should be carried out when the temperature is around 30℃ and the weather is cloudy. Select one-year-old Eagle Tea seedlings and transplant them with a spacing of about 2.2×2.2m. Cut off the young leaves and tender shoots that have not yet become lignified. Water thoroughly to allow the roots to seep outwards. Cover the soil and compact it. Spray each plant with a mixture of 500 times diluted potassium fulvic acid and 1000 times diluted naphthaleneacetic acid rooting powder.

[0049] (3) Planting of Gesneriaceae: Select one-year-old Liujiang Primula and transplant it on the second day after the Eagle Tea plant is transplanted. Plant Gesneriaceae in a circle with a spacing of 15×15 cm along the main trunk and about 15 cm between the main trunk under the Eagle Tea plant. The planting area is 2m 2 After planting, water thoroughly to establish roots.

[0050] (4) Post-management: 3 days after the completion of the planting of gesnerium, dilute the root secretion promoter 10 times and spray it on the roots of gesnerium. Spray it once every 10 days for a total of one month. The amount used each time is 120g / m 2 , mix decomposed organic fertilizer and trace elements (iron, manganese, boron) in a ratio of 50:1 and then use it for supplementary fertilizer. The mass ratio of iron, manganese and boron is 2:1:1. Supplementary fertilizer is carried out once a month after planting, and the amount of fertilizer each time is 150kg per mu. Appropriate watering and pruning are carried out in the later stage.

[0051] Comparative Example 1:

[0052] This comparative example is in contrast to Example 1, the only difference being that sodium persulfate is not added during the preparation of the root secretion promoter. The specific preparation method is as follows:

[0053] 1.2 g of pectin was added to 120 ml of deionized water, heated to 50° C., and stirred at 250 rpm for 10 min. Then, 0.6 g of sodium nitrite, 0.6 g of alkyl alcohol polyoxyethylene ether, 1 g of potassium sorbate, and 1 g of glutamic acid were added. The mixture was stirred evenly and cooled to room temperature to obtain a root secretion promoter.

[0054] The method of intercropping gesneriaceae with old eagle tea in this comparative example is the same as that in Example 1.

[0055] Comparative Example 2:

[0056] This comparative example is in contrast to Example 1, the only difference being that potassium nitrite is not added during the preparation of the root secretion promoter. The specific preparation method is as follows:

[0057] 1.2 g of pectin was added to 120 ml of deionized water, heated to 50°C, and stirred at 250 rpm for 10 min. Then, 0.6 g of alkyl alcohol polyoxyethylene ether, 1 g of potassium sorbate, and 1 g of glutamic acid were added, and the mixture was continued to be stirred evenly. Subsequently, 0.1 g of sodium persulfate was added, stirred evenly, and cooled to room temperature to obtain a root secretion promoter.

[0058] The method of intercropping gesneriaceae with old eagle tea in this comparative example is the same as that in Example 1.

[0059] Comparative Example 3:

[0060] This comparative example is in contrast to Example 1, the only difference being that pectin is not added during the preparation of the root secretion promoter. The specific preparation method is as follows:

[0061] Mix 0.6 g of sodium nitrite with 120 ml of deionized water, add 0.6 g of alkyl alcohol polyoxyethylene ether, 1 g of potassium sorbate, and 1 g of glutamic acid, continue to stir evenly, then add 0.1 g of sodium persulfate, stir evenly, and cool to room temperature to obtain a root secretion promoter.

[0062] The method of intercropping gesneriaceae with old eagle tea in this comparative example is the same as that in Example 1.

[0063] Comparative Example 4:

[0064] This comparative example is in contrast to Example 1, the only difference being that no alkyl alcohol polyoxyethylene ether is added during the preparation of the root secretion promoter. The specific preparation method is as follows:

[0065] 1.2 g of pectin was added to 120 ml of deionized water, heated to 50°C, and stirred at 250 rpm for 10 min. Then, 0.6 g of sodium nitrite, 1 g of potassium sorbate, and 1 g of glutamic acid were added, and the mixture was continued to be stirred evenly. Subsequently, 0.1 g of sodium persulfate was added, stirred evenly, and cooled to room temperature to obtain a root secretion promoter.

[0066] The method of intercropping gesneriaceae with old eagle tea in this comparative example is the same as that in Example 1.

[0067] Comparative Example 5:

[0068] This comparative example is in contrast to Example 1. The only difference is that the amount of root secretion promoter used in the process of intercropping gesneriaceae with eagle tea is 200g / m 2 , the specific method is as follows:

[0069] (1)-(3) are the same as in Example 1;

[0070] (4) Post-management: 3 days after the completion of the planting of gesnerium, dilute the root secretion promoter 10 times and spray it on the roots of gesnerium. Spray it once every 7 days for a total of one month. The amount used each time is 200g / m 2 , mix decomposed organic fertilizer and trace elements (iron, manganese, boron) at a ratio of 10:0.5 and then use it for supplementary fertilizer. The mass ratio of iron, manganese and boron is 2:1:1. Supplementary fertilizer is carried out every month after planting, and the amount of fertilizer each time is 100kg per mu. Appropriate watering and pruning are carried out in the later stage.

[0071] Comparative Example 6:

[0072] This comparative example is in contrast to Example 1. The only difference is that the amount of root secretion promoter used in the process of intercropping gesneriaceae with eagle tea is 50g / m 2 , the specific method is as follows:

[0073] (1)-(3) are the same as in Example 1;

[0074] (4) Post-management: 3 days after the completion of the planting of gesnerium, dilute the root secretion promoter 10 times and spray it on the roots of gesnerium. Spray it once every 7 days for a total of one month. The amount used each time is 50g / m 2 , mix decomposed organic fertilizer and trace elements (iron, manganese, boron) in a ratio of 50:1 and then use it for supplementary fertilizer. The mass ratio of iron, manganese and boron is 2:1:1. Supplementary fertilizer is carried out every other month, and the amount of fertilizer each time is 100kg per mu. Appropriate watering and pruning are carried out in the later stage.

[0075] Blank control:

[0076] This comparative example is in contrast to Example 1, the only difference being that no absorption enhancer is sprayed during the intercropping of eagle tea with gesnerium. The specific method is as follows:

[0077] (1)-(3) are the same as in Example 1;

[0078] (4) Post-management: Fertilize the Gesneriaceae and Eagle Tea according to conventional methods, and water and prune them in the later stage.

[0079] The root secretion promoter used in this comparative experiment is the same as that in Example 1.

[0080] experiment:

[0081] The soil of a cliff at an altitude of about 600m was selected and the test site was divided into 8 areas, each with the same soil conditions and area. The experiment of intercropping gesneriaceae with eagle tea was carried out according to the methods of Example 1, Comparative Examples 1-6 and a blank control.

[0082] On April 10th, when the temperature was around 25°C and the weather was cloudy, one-year-old saplings were selected and transplanted at a spacing of approximately 2 × 2 meters per row. Forty saplings were transplanted in each area. Once the saplings were transplanted, the following day, gesneriaceae were transplanted. Under the saplings, along the main trunk, at intervals of approximately 10 cm, gesneriaceae were planted at a spacing of 15 × 15 cm around the saplings.

[0083] On June 10, the survival rates of the eagle tea and the gesneriaceae in each plot were counted (3 gesneriaceae planted around the eagle tea were randomly selected), and 20 eagle tea plants were randomly selected to measure the plant height growth from transplanting to June 10, and the crown width growth of 20 gesneriaceae from transplanting to June 10; at the same time, 5 eagle tea plants were randomly selected from each plot, and their lateral roots were taken to detect the content of heavy metals (Pb, Zn, Cu), and the pH, carbon content, and nitrogen content of the soil were also tested. The data obtained are shown in Tables 1 and 2.

[0084] Table 1

[0085]

[0086] Table 2

[0087]

[0088] Analyzing Table 1 and Table 2, we can get:

[0089] 1. In Example 1, compared with the blank control, a root secretion promoter was sprayed on the roots of gesneriaceae. After the use of the root secretion promoter, the heavy metal content in the roots of eagle tea increased slightly, and the pH of the soil decreased slightly, but it was still within the range suitable for the growth of eagle tea. At the same time, the survival rate of eagle tea increased significantly after the use of the root secretion promoter. This is because the root secretion promoter can effectively promote the secretion of sugars, amino acids and other substances by the roots of gesneriaceae, thereby increasing the carbon content and nitrogen content in the soil, effectively improving the soil, promoting the absorption of nutrients by eagle tea, meeting the nutritional components required for the growth of eagle tea, and improving the survival rate. Although Example 1 had a smaller effect on the survival rate of gesneriaceae compared to the blank control, the crown growth was significantly improved. This shows that the method of Example 1 can promote the improvement of the survival rate of eagle tea intercropped with gesneriaceae, and the growth of both crops is promoted.

[0090] 2. Comparative Example 1: Compared with Example 1, no sodium persulfate was added during the preparation of the root secretion promoter. The soil in the test site had a higher pH and lower carbon and nitrogen contents. This is because sodium persulfate stimulates the roots of gesneriaceae to synthesize organic molecules such as sugars and amino acids, which are secreted into the soil through the roots, promoting the growth of eagle tea and gesneriaceae. Therefore, in Comparative Example 1, the gesneriaceae root secretions were less, resulting in lower plant height growth and crown width growth of gesneriaceae, and reduced survival rates of eagle tea and gesneriaceae.

[0091] 3. Comparative Example 2 Compared with Example 1, potassium nitrite was not added during the preparation of the root secretion promoter. The pH of the soil in the test site was higher and the carbon and nitrogen contents were lower. This is because the root secretions of the gesnerium were released slowly, which reduced the promoting effect on crops. The plant height growth of the eagle tea was lower and the crown width growth of the gesnerium was lower, resulting in a lower survival rate of the eagle tea and the gesnerium.

[0092] 4. Comparative Example 3 Compared with Example 1, no pectin was added, and the content of heavy metals in the lateral roots of the eagle tea was higher. This is because the organic acids secreted by the roots can promote the dissolution of heavy metals in the soil, increase the mobility of heavy metal ions in the soil, and activate the heavy metal ions, making them more easily absorbed by the roots. In Comparative Example 3, the free heavy metals were adsorbed by the root secretion promoter and existed in the form of soluble complexes. The crop roots still absorbed heavy metal ions, thereby inhibiting the growth of the eagle tea and the gesnerium, and reducing the survival rate of the eagle tea and the gesnerium.

[0093] 5. Comparative Example 4 Compared with Example 1, no alkyl alcohol polyoxyethylene ether was added, and the root secretion promoter had a smaller binding amount to free heavy metal ions, resulting in the eagle tea absorbing more heavy metal ions and a higher heavy metal content in the lateral roots. Excessive heavy metal ions will have a toxic effect on the root system of crops, resulting in the growth of eagle tea and gesnerium being inhibited and the survival rate being reduced.

[0094] 6. Comparative Example 5 Compared with Example 1, the amount of root secretion promoter used in the process of intercropping gesneriaceae with eagle tea is 200g / m 2 Excessive use of root secretion enhancers can lead to excessive root secretion in gesneriaceae. Excessive root secretions can be autotoxic to the gesneriaceae, inhibiting their growth and even causing them to rot and die, significantly reducing their survival rate. Excessive secretion concentrations can also damage the roots of eagle tea cuttings, reducing their transplant survival rate.

[0095] 7. Comparative Example 6 Compared with Example 1, the amount of root secretion promoter used in the process of intercropping of eagle tea with gesnerium is 50g / m 2 If the amount of root secretion promoter used is too small, the secretion of the Gesneriaceae roots will be less, which will have little effect on the survival of the Gesneriaceae. However, it will cause the root secretions to reduce the promoting effect on the growth of Eagle Tea and reduce the survival rate.

[0096] The above embodiments are intended only to illustrate the technical solutions of the present invention and are not intended to limit the scope of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that the technical solutions of the present invention may be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention, and such modifications or equivalents shall be encompassed by the claims of the present invention. Any techniques, shapes, and structures not described in detail herein are well known.

Claims

1. A method for intercropping of eagle tea, characterized in that: The method comprises the following steps: (1) Land preparation: deep tillage and application of base fertilizer; (2) Transplanting of Eagle Tea: Transplanting Eagle Tea seedlings; (3) Planting of Gesneriaceae: Plant Gesneriaceae along the main trunk under the eagle tea plant; (4) Post-management: Fertilize, water, and prune the gesnerium after planting. Start spraying the roots of gesnerium with root secretion promoter 3 days after the completion of gesnerium planting. Specifically, dilute the root secretion promoter 10 times and spray it on the roots of gesnerium. Spray it once every 7-10 days for a total of one month. The amount used each time is 100-120g / m 2 ; The raw materials of the root secretion promoter are as follows: sodium persulfate, glutamic acid, potassium sorbate, sodium nitrite, alkyl alcohol polyoxyethylene ether, and pectin; The preparation method of the root secretion promoter is as follows: Pectin is added to deionized water, heated to 50-60°C, and stirred at 250-300 rpm for 10-15 minutes. Then, sodium nitrite, alkyl alcohol polyoxyethylene ether, potassium sorbate, and glutamic acid are added, and the stirring is continued. Then, sodium persulfate is added, and the mixture is stirred evenly and cooled to room temperature to obtain a root secretion promoter.

2. The interplanting method of an eagle tea according to claim 1, characterized in that: The transplanting time of the eagle tea in step (2) is March to April in spring or September to October in autumn, the transplanting temperature is 25-30°C, and the transplanting climate is cloudy.

3. The interplanting method of an eagle tea according to claim 2, characterized in that: The primrose in step (3) is one of Primrose lepidoptera, Primrose radix, Primrose liboensis, and Primrose liujiangensis.

4. The interplanting method of an eagle tea according to claim 3, characterized in that: The gesnerium in step (3) is transplanted within three days after the eagle tea is transplanted.

5. The interplanting method of eagle tea according to claim 4, characterized in that: The fertilizing operation in step (4) is as follows: compounding the decomposed organic fertilizer with the trace elements iron, manganese and boron and then fertilizing the land. The fertilizing is carried out once every month, and the amount of each fertilizing is 100-150 kg per mu.

6. The interplanting method of eagle tea according to claim 5, characterized in that: The ratio of each raw material of the root secretion promoter is as follows: the mass ratio of sodium persulfate, glutamic acid, potassium sorbate, sodium nitrite, alkyl alcohol polyoxyethylene ether, and pectin is (0.1-0.12): (1-1.2): (1-1.5): (0.6-0.8): (0.6-0.7) (1.2-1.5).

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