Field regression method in front of Fengdu vehicle

Abstract

The invention provides a field regression method for plantago tomentosa, and relates to the technical field of field regression of rare and endangered plants. The method comprises the steps that reverse-slope horizontal-step soil preparation is conducted on a target return land in front of the Fengdu vehicle, the elevation between the target return land and the horizontal ground is smaller than or equal to 5 m, and the soil layer thickness of the target return land is larger than or equal to 10 cm; in March, the Fengdu vehicle is planted in the reverse slope horizontal step, and weeding is carried out once every 15 days after planting; xanthium sibiricum seeds are sowed between rows in front of the Fengdu vehicle in April, and grown Xanthium sibiricum is thinned in June; and after all the xanthium sibiricum is removed in July, under the condition that the Fengdu vehicle is exposed, film covering is conducted on the reverse slope horizontal step, and film removing is conducted on the reverse slope horizontal step in September. According to the method, the survival rate of field return in front of the Fengdu vehicle is increased by preprocessing the target return land in front of the Fengdu vehicle and planting the shading plants between the rows in front of the Fengdu vehicle.

Description

Technical Field

[0001] The present application relates to the technical field of wild reintroduction of rare and endangered plants, and in particular to a method for wild reintroduction of Plantago asiatica. Background Art

[0002] Plantago fengdouensis is a unique, rare and endangered plant. It is on the verge of extinction due to its narrow distribution area and small number of individuals in the wild. Therefore, how to effectively reintroduce Plantago fengdouensis to the wild is crucial to the protection of this species.

[0003] In the existing technology, the research mainly focuses on the classification, ex situ conservation and biological characteristics observation of Fengdu Plantago. In terms of breeding technology, the tissue culture rapid propagation technology has been developed mainly through the steps of screening, pretreatment, sterilization and germination induction of Fengdu Plantago seeds, thereby improving the reproduction speed of Fengdu Plantago.

[0004] However, there is no detailed research and report on the field return method of Plantago asiatica in the prior art. Summary of the invention

[0005] The present application provides a method for the wild return of Plantago asiatica, which is used to improve the survival rate of the wild return of Plantago asiatica by pretreating the target return site of Plantago asiatica and planting shade plants between the rows of Plantago asiatica.

[0006] In a first aspect, the present application provides a method for field regression of Plantago asiatica, the method comprising:

[0007] The target regression land in Cheqian, Fengdu, is subjected to reverse slope horizontal terrace land preparation, the elevation of the target regression land and the horizontal ground is less than or equal to 5 meters, and the soil thickness of the target regression land is greater than or equal to 10 centimeters, the reverse slope inclination of the reverse slope horizontal terrace land preparation is between 5 degrees and 10 degrees, the step distance of the reverse slope horizontal terrace land preparation is 1 meter, and the step width of the reverse slope horizontal terrace land preparation is 40 centimeters to 50 centimeters;

[0008] Plant the Plantain chinensis in the horizontal steps of the reverse slope in March, and weed every 15 days after planting;

[0009] In April, sow Xanthium sibiricum seeds between the rows of Fengdu Plantago, and thin out the grown Xanthium sibiricum in June;

[0010] After all the Xanthium sibiricum were removed in July, the horizontal steps on the reverse slope were covered with film while the Plantago asiatica was exposed, and the film was removed in September.

[0011] In one possible design, the cocklebur seeds are sown at a spacing of 30 cm.

[0012] In one possible design, the thinning intensity of Xanthium sibiricum is 0.5.

[0013] In one possible design, the first 30 cm of the Plantago asiatica is not covered with film.

[0014] In a possible design, the distance between two adjacent Plantago asiatica plants is 10 cm to 20 cm.

[0015] In one possible design, it also includes:

[0016] Water the plants once on the day of planting to help them take root, and once on the 1st, 2nd and 7th day after planting.

[0017] In one possible design, before the Fengdu Plantago is planted in the horizontal steps on the reverse slope in March, it also includes:

[0018] The dead branches and leaves of native plants in the target riverbank area where Fengdu Plantago grows in the wild are fully burned to obtain wood ash, which is then spread on the reverse slope horizontal steps of the target regression site to be evenly mixed with the soil.

[0019] In one possible design, before the Fengdu Plantago is planted in the horizontal steps on the reverse slope in March, it also includes:

[0020] The seedlings of Plantago asiatica were placed in a shade shed environment for drought hardening, which included watering every 10 days, with each seedling receiving 500 ml of water each time.

[0021] In one possible design, drought training is performed in January and the duration of drought training is 60 days.

[0022] In a possible design, before placing the seedlings of Plantago asiatica in a shade shed environment for drought hardening, the following steps are also included:

[0023] The seedlings of Plantago asiatica propagated from 2-year-old seeds were selected, and the root-to-crown ratio of the seedlings was greater than or equal to 3.

[0024] The present application provides a method for field regression of Plantago asiatica, which comprises: preparing a target regression site for Plantago asiatica with a reverse slope horizontal step, wherein the elevation of the target regression site to the horizontal ground is less than or equal to 5 meters, and the soil thickness of the target regression site is greater than or equal to 10 centimeters, the reverse slope inclination of the reverse slope horizontal step preparation is between 5 degrees and 10 degrees, the step distance between the reverse slope horizontal step preparation is 1 meter, and the step width of the reverse slope horizontal step preparation is 40 centimeters to 50 centimeters; in March, Plantago asiatica is planted in the reverse slope horizontal step, and weeding is performed every 15 days after planting; in April, Xanthium sibiricum seeds are sown between the rows of Plantago asiatica, and the grown Xanthium sibiricum is thinned out in June; after all Xanthium sibiricum are removed in July, the reverse slope horizontal step is covered with a film while the Plantago asiatica is exposed, and the film is removed from the reverse slope horizontal step in September. The following technical effects are achieved: by selecting a suitable return site for Plantain fengduensis, the elevation of the return site is not more than 5 meters relative to the horizontal ground, ensuring that the terrain of the return site is suitable for the growth of Plantain fengduensis and is conducive to drainage, avoiding the problem of root rot of Plantain fengduensis caused by water accumulation; by making the soil layer thickness of the return site not less than 10 centimeters, sufficient soil depth is ensured to support the root development of Plantain fengduensis, thereby ensuring that the soil can provide Plantain fengduensis with sufficient nutrients and root growth space; by performing reverse slope horizontal terrace land preparation on the target return site, the drainage of the soil for planting Plantain fengduensis is improved, soil and water loss can be prevented, and it is conducive to the growth of Plantain fengduensis; By regularly weeding and removing Xanthium sibiricum, the competition of weeds on Plantain chinensis is reduced, ensuring that it has sufficient resources for growth; by covering the horizontal steps on the reverse slope, the evaporation of soil moisture is reduced, the soil moisture is maintained, the soil temperature is increased, and the growth of weeds is inhibited, further providing a suitable soil environment for the growth of Plantain chinensis; by the rational use of film covering and film removal, the good air permeability of the soil is maintained, promoting the healthy development of the root system of Plantain chinensis; through the design of the horizontal steps on the reverse slope and the use of film covering, it is more convenient for technical personnel to manage and monitor Plantain chinensis, which helps to promptly discover and solve various problems arising during the growth of Plantain chinensis. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0027] Figure 1A schematic diagram of a method for field regression of Plantago asiatica provided in an embodiment of the present application Figure 1 ;

[0028] Figure 2 A schematic diagram of a method for field regression of Plantago asiatica provided in an embodiment of the present application Figure 2 ;

[0029] Figure 3 A schematic diagram of a normally growing Fengdu Plantago in April provided in an embodiment of the present application;

[0030] Figure 4 A schematic diagram of Fengdu Plantago in April without spreading plant ash in the soil in advance provided in an embodiment of the present application;

[0031] Figure 5 A schematic diagram of a Fengdu Plantago plant growing normally in July provided in an embodiment of the present application;

[0032] Figure 6 A schematic diagram of Plantago asiatica in July with all Xanthium sibiricum removed in advance provided in an embodiment of the present application. DETAILED DESCRIPTION

[0033] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0034] In the embodiments of the present application, words such as "first" and "second" are used to distinguish between identical or similar items with substantially the same functions and effects. Those skilled in the art will appreciate that words such as "first" and "second" do not limit the quantity and execution order, and words such as "first" and "second" do not necessarily limit the difference. It should be noted that in the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design described as "exemplary" or "for example" in the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way. In the embodiments of the present application, "at least one" refers to one or more, and "more" refers to two or more.

[0035] It should be noted that the "at..." in the embodiment of the present application can be the instant when a certain situation occurs, or can be a period of time after a certain situation occurs, and the embodiment of the present application does not specifically limit this. In addition, the field return method of Plantago asiatica provided in the embodiment of the present application is only used as an example, and the field return method of Plantago asiatica can also include more or less content.

[0036] In order to clearly describe the technical solutions of the embodiments of the present application, some terms and technologies involved in the embodiments of the present application are briefly introduced below:

[0037] Wild reintroduction: refers to a conservation measure that reintroduces species that once lived in a certain area but are now extinct or extremely rare into their original or similar natural environments through artificial breeding or other means. This practice aims to restore the wild population of species, protect biodiversity, and repair damaged ecosystems. Wild reintroduction is crucial for many endangered species because it can help these species avoid extinction and help maintain the health and stability of ecosystems. In other words, on the basis of ex situ conservation, plants are introduced into their original natural or semi-natural living environments through artificial breeding in order to establish new populations that can be naturally maintained and renewed.

[0038] Root-crown ratio: refers to the ratio of the fresh weight or dry weight between the underground part (root system) and the aboveground part (crown, including stems, leaves, etc.) of the plant. This ratio is one of the important indicators for evaluating plant growth conditions, environmental adaptability and resource allocation strategies. Changes in the root-crown ratio can reflect the response of plants to different environmental conditions (such as water and nutrient supply). A large root-crown ratio indicates that the root system is vigorous and developed, which can store more water and nutrients for the plant, and is usually more resistant to stress.

[0039] Tissue culture and rapid propagation: tissue culture and rapid propagation, is a method of rapidly propagating plants using plant tissue culture technology. This technology has important applications in plant protection, breeding and commercial production, especially for plant species with slow propagation speed, low seed germination rate or endangered. Tissue culture and rapid propagation technology can reproduce a large number of plants with the same genotype in a short period of time, which is suitable for large-scale production and protection of endangered plants.

[0040] Plantago fengdouensis is a unique rare and endangered plant. It is a perennial herbaceous plant of the genus Plantago in the family Plantaginaceae. It is a key protected plant that grows in a specific area and environment. Plantago fengdouensis is an amphibious plant that is resistant to flooding and drought and has unique ecological value. In the long natural succession, Plantago fengdouensis has formed a natural habit of dormancy in summer to cope with river flooding and growth and reproduction in the spring dry season. The unique growth habit of Plantago fengdouensis allows the above-ground part to wither or rot when the river water rises, while the underground root system remains active and quickly resumes growth after the river water recedes, making it an important model for studying plant adaptation to extreme environments. However, due to its narrow distribution area in the wild, population degradation, small number of individuals, ecological environmental destruction and the impact of human activities, Plantago fengdouensis is listed as a rare and endangered plant. Its survival status is extremely severe and it is facing a serious threat of extinction.

[0041] Fengdu Plantago was once declared extinct in the wild. Later, in the unremitting investigation of scientific researchers, only a small number of existing wild plants were found. Fengdu Plantago seeds have the defects of low fruiting rate, uneven quality, low germination rate and seedling rate, and weak adaptability to the environment after seedling formation. As a result, the number of wild populations is too low, and the natural renewal of populations is also more difficult. The original environment no longer exists due to being submerged by river water, resulting in the dilemma of Fengdu Plantago being fragmented in its living environment. The wild population is in danger of extinction at any time. Therefore, it is particularly important to effectively return Fengdu Plantago to the wild and protect it.

[0042] In the existing technical system, the research work on Fengdu Plantago mainly focuses on classification and identification (clarifying the classification status and morphological characteristics of Fengdu Plantago), the formulation of ex situ conservation measures (through the establishment of botanical gardens or protected areas, Fengdu Plantago is moved to an artificially controlled environment for protection) and in-depth observation of biological characteristics (studying its growth and development laws, ecological habits, etc., can provide a theoretical basis for wild return). In terms of breeding technology, although some studies have successfully solved the problem of rapid tissue culture propagation of Fengdu Plantago through meticulous seed screening, pretreatment, sterilization and induced germination, and significantly improved its reproduction speed. Unfortunately, although some progress has been made in breeding technology for Fengdu Plantago, there is still a lack of systematic research and practice in wild return. At present, no scholar has conducted research on the wild return of Fengdu Plantago in the riparian zone. Therefore, relevant research on how to successfully return Fengdu Plantago to its natural habitat is still blank. In this context, the implementation of the wild reintroduction of Plantago asiatica can effectively expand its wild population and avoid its extinction in the wild. How to solve the above difficulties and improve the survival rate of Plantago asiatica in the wild reintroduction is a technical problem that needs to be solved urgently.

[0043] Based on this, the embodiment of the present application proposes a method for the wild return of Plantago asiatica, which can be used in the technical field of the wild return of rare and endangered plants, aiming to solve the above technical problems of the prior art. Through a series of scientific and effective measures, the survival rate of Plantago asiatica in the wild is significantly improved. Specifically, the method includes two core links: one is to carry out comprehensive and detailed pretreatment of the target return site to ensure that the return site has the basic conditions suitable for the growth of Plantago asiatica; the second is to reasonably plant shade plants between the planting rows of Plantago asiatica to provide the necessary shading effect and reduce the potential damage of strong light to Plantago asiatica seedlings, thereby further ensuring its survival rate. By pretreating the target return site of Plantago asiatica and planting shade plants between the rows, its survival rate and adaptability in the wild can be significantly improved. The method in the embodiment of the present application provides a scientific basis and technical support for the protection of Plantago asiatica, and can also provide reference for the wild return of other endangered plants.

[0044] The technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems are described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0045] Figure 1 A schematic diagram of a method for field regression of Plantago asiatica provided in an embodiment of the present application Figure 1 .like Figure 1 As shown, the method includes:

[0046] S101. Carry out reverse slope horizontal terrace land preparation on the target regression site in Cheqian, Fengdu.

[0047] In the embodiment of the present application, the elevation of the selected target regression site and the horizontal ground is less than or equal to 5 meters, and the soil thickness of the target regression site is greater than or equal to 10 centimeters, the reverse slope inclination angle of the reverse slope horizontal step land preparation is between 5 degrees and 10 degrees, the step distance of the reverse slope horizontal step land preparation is 1 meter, and the step width of the reverse slope horizontal step land preparation is 40 centimeters to 50 centimeters;

[0048] Specifically, in order to improve the survival rate and growth effect of Plantago asiatica in the wild, a suitable growth environment can be provided for it to ensure its healthy growth. First of all, a suitable target return site can be selected for Plantago asiatica, and the elevation of the target return site should not exceed 5 meters relative to the horizontal ground to ensure that the terrain is suitable for the growth of Plantago asiatica. Moreover, such a height difference is conducive to drainage and avoids root rot caused by water accumulation. At the same time, the soil layer thickness of the target return site can be selected to be at least 10 cm to ensure sufficient soil depth to support the root development of Plantago asiatica, thereby ensuring that the soil can provide sufficient nutrients and root growth space for Plantago asiatica.

[0049] In the design of reverse slope horizontal terrace land preparation, the reverse slope angle can be controlled between 5 and 10 degrees, which can effectively prevent soil erosion and create an inclined but stable growth surface for Fengdu Plantain. This is because such a slope can effectively drain water and keep the soil moist, prevent soil erosion, and improve soil drainage, which is suitable for the growth of Fengdu Plantain.

[0050] In addition, the distance between the steps is set at 1 meter, which can not only ensure that there is enough space between each step for ventilation and light, but also facilitate the subsequent management and maintenance work of technicians, and facilitate the daily management and monitoring of Fengdu Plantain. The step width is set at 40 cm to 50 cm, which can not only allow Fengdu Plantain to have enough growth space at each level, but also ensure the effective use of land resources.

[0051] S102. Plant Plantain chinensis in horizontal steps on the reverse slope in March, and weed every 15 days after planting.

[0052] Specifically, the temperature gradually warms up in March, and the climate is suitable, which is conducive to the initial growth and underground rooting of plants. Therefore, Fengdu Plantain can be planted in the above-mentioned reverse slope horizontal steps in this suitable season in March. In order to ensure its healthy growth and the establishment of the root system, weeding can be carried out every 15 days after planting to reduce weed competition, eliminate the impact of weeds on the growth of Fengdu Plantain, and ensure that Fengdu Plantain can obtain sufficient growth resources such as water, nutrients and light.

[0053] Further, the spacing between two adjacent plants of Plantain chinensis is 10 cm to 20 cm. That is to say, in order to ensure that there is enough spacing between each plant of Plantain chinensis to avoid overcrowding, the Plantain chinensis seedlings can be evenly planted in the reverse slope horizontal steps, and ensure that the distance between two adjacent plants of Plantain chinensis is 10 cm to 20 cm.

[0054] S103. Sow Xanthium sibiricum seeds between the rows of Plantain truncatum in April, and thin out the grown Xanthium sibiricum in June.

[0055] Specifically, in April, in order to take advantage of the interaction between various ecological plants, Xanthium sibiricum seeds can be sown between the rows of Plantain truncatum. As a short-term companion plant, Xanthium sibiricum can inhibit the growth of weeds to a certain extent, provide a certain shade effect for Plantain truncatum, reduce soil moisture evaporation, and attract some natural enemy insects to help control pests, thereby providing a better growth environment for Plantain truncatum.

[0056] In a possible implementation, the sowing distance of the Xanthium sibiricum seeds is 30 cm. As companion plants, the relationship between Xanthium sibiricum and Plantago asiatica needs to be maintained in a healthy ecological balance. The appropriate distance can prevent Xanthium sibiricum from excessively encroaching on the space and resources of Plantago asiatica, ensuring the harmonious coexistence of the two.

[0057] As an annual herb, Xanthium sibiricum grows fast and has high requirements for light and nutrition. Too dense seeding spacing will cause excessive competition for light, water and nutrients between Xanthium sibiricum plants and Plantago asiatica, thus affecting the growth of Plantago asiatica. Choosing a seeding spacing of 30 cm can ensure that each Xanthium sibiricum plant has enough space to absorb water and nutrients from the soil, while also having sufficient light to avoid excessive competition between plants due to competition for resources, thereby promoting their healthy growth. A seeding spacing of 30 cm can reduce competition between plants to a certain extent, which is beneficial for Xanthium sibiricum to provide shade for Plantago asiatica, while not having an adverse effect on the growth of Plantago asiatica.

[0058] The 30-centimeter spacing is also conducive to air circulation and light conditions between plants, reducing the density between plants, thereby reducing the breeding and spread of pests and diseases, reducing the occurrence of pests and diseases, effectively reducing the cost and difficulty of pest and disease prevention and control, and promoting the healthy growth of Fengdu Plantain.

[0059] Although the initial growth of Xanthium sibiricum can provide certain shading effect and microclimate regulating effect for Plantago asiatica. However, when Xanthium sibiricum grows to a certain extent, in order to avoid it from competing with Plantago asiatica for nutrients and light, it is necessary to thin out the Xanthium sibiricum that grows in June. In a possible embodiment, the thinning intensity of Xanthium sibiricum is 0.5. By making the thinning intensity of the shade plant Xanthium sibiricum be to remove 1 / 2, thereby only retaining an appropriate amount of Xanthium sibiricum plants, it is possible to maintain a suitable shading effect for Plantago asiatica, and avoid Xanthium sibiricum from excessively blocking the light of Plantago asiatica. At the same time, by controlling the density of Xanthium sibiricum, it is possible to prevent the excessive competition between Xanthium sibiricum and Plantago asiatica.

[0060] In July, all Xanthium plants can be completely removed to ensure that there are no competing plants around the Plantain truncatum, thus ensuring that the growth of the Plantain truncatum is not affected.

[0061] S104. After all Xanthium sibiricum are removed in July, the horizontal steps on the reverse slope are covered with film while the Plantago asiatica is exposed, and the film is removed from the horizontal steps on the reverse slope in September.

[0062] In July, after all the cockleburs have been removed, the plantain will be completely exposed to sunlight and air. At this time, in order to further increase soil temperature, maintain soil moisture, prevent the growth of weeds, and promote the growth and expansion of the root system of the plantain, the horizontal steps of the reverse slope can be covered with film while ensuring that the plantain is exposed. This maintains soil moisture, regulates soil temperature, and reduces weed growth, creating a suitable growth environment for the plantain by improving the soil environment.

[0063] Further, in a possible implementation, the 30 cm of the Plantain Root is not covered with film. Specifically, when covering with film, care should be taken to expose the Plantain Root and ensure that the 30 cm range around the Plantain Root is not covered with film, so as to maintain the air permeability and humidity of the area around the Plantain Root, promote the root system of the Plantain Root to breathe better and absorb nutrients, thereby promoting the healthy development of the root system of the Plantain Root.

[0064] Finally, in September, as the weather gradually turns cooler, in order to avoid excessive soil temperature and humidity caused by film covering, which would affect the normal growth of Fengdu Plantain, and to allow Fengdu Plantain to gradually adapt to changes in the natural environment and promote its healthy growth, the film will be removed from the reverse slope. The film removal time is chosen in autumn because Fengdu Plantain has established a relatively developed root system at this time and can better adapt to the natural environment. At the same time, film removal also helps soil ventilation and promotes the growth of Fengdu Plantain. At this point, the entire Fengdu Plantain field return method is completed.

[0065] Through the above steps, not only a suitable growth environment is provided for Plantain fengduensis, but also the interaction between species is fully utilized to ensure the healthy growth of Plantain fengduensis. And through reasonable environmental management and competition control, comprehensive consideration of soil, water, light and competition factors, the survival rate and growth quality of Plantain fengduensis are improved, providing scientific basis and technical support for the protection and restoration of this rare and endangered plant.

[0066] The present embodiment provides a method for field regression of Plantago asiatica, the method comprising: preparing a target regression site for Plantago asiatica with a reverse slope horizontal step, the elevation of the target regression site to the horizontal ground being less than or equal to 5 meters, and the soil thickness of the target regression site being greater than or equal to 10 centimeters, the reverse slope inclination of the reverse slope horizontal step preparation being between 5 degrees and 10 degrees, the step distance between the reverse slope horizontal step preparation being 1 meter, and the step width of the reverse slope horizontal step preparation being 40 centimeters to 50 centimeters; planting Plantago asiatica in the reverse slope horizontal step in March, and weeding every 15 days after planting; sowing Xanthium sibiricum seeds between the rows of Plantago asiatica in April, and thinning out the grown Xanthium sibiricum in June; after removing all Xanthium sibiricum in July, covering the reverse slope horizontal step with a film while the Plantago asiatica is exposed, and removing the film from the reverse slope horizontal step in September.

[0067] The following technical effects are achieved: by selecting a suitable return site for Plantain fengduensis, the elevation of the return site is not more than 5 meters relative to the horizontal ground, ensuring that the terrain of the return site is suitable for the growth of Plantain fengduensis and is conducive to drainage, avoiding the problem of root rot of Plantain fengduensis caused by water accumulation; by making the soil layer thickness of the return site not less than 10 centimeters, sufficient soil depth is ensured to support the root development of Plantain fengduensis, thereby ensuring that the soil can provide Plantain fengduensis with sufficient nutrients and root growth space; by performing reverse slope horizontal terrace land preparation on the target return site, the drainage of the soil for planting Plantain fengduensis is improved, soil and water loss can be prevented, and it is conducive to the growth of Plantain fengduensis; By regularly weeding and removing Xanthium sibiricum, the competition of weeds on Plantain chinensis is reduced, ensuring that it has sufficient resources for growth; by covering the horizontal steps on the reverse slope, the evaporation of soil moisture is reduced, the soil moisture is maintained, the soil temperature is increased, and the growth of weeds is inhibited, further providing a suitable soil environment for the growth of Plantain chinensis; by the rational use of film covering and film removal, the good air permeability of the soil is maintained, promoting the healthy development of the root system of Plantain chinensis; through the design of the horizontal steps on the reverse slope and the use of film covering, it is more convenient for technical personnel to manage and monitor Plantain chinensis, which helps to promptly discover and solve various problems arising during the growth of Plantain chinensis.

[0068] Figure 2 A schematic diagram of a method for field regression of Plantago asiatica provided in an embodiment of the present application Figure 2 In one possible example, Figure 2 As shown, in this embodiment Figure 1 Based on the embodiment, the steps of planting Plantain fengduensis in the horizontal step of the reverse slope are described in detail. Figure 2 As shown, the method includes:

[0069] S201. Selecting seedlings of Plantago asiatica grown from 2-year-old seeds, wherein the root-to-crown ratio of the seedlings is greater than or equal to 3.

[0070] Specifically, selecting seedlings with a root-to-crown ratio greater than or equal to 3 is to ensure that the selected seedlings have a strong root system. Selecting plants with a more developed root system will help improve their ability to absorb water and nutrients, and better adapt to environmental changes after transplantation, thereby increasing the survival rate of Plantain P.

[0071] S202. Place the seedlings of Plantago asiatica in a shade shed environment for drought hardening.

[0072] In the embodiment of the present application, drought training includes: watering once every 10 days, with each seedling being watered with 500 ml of water each time.

[0073] Specifically, drought hardening can enhance the stress resistance of Plantain chinensis seedlings, especially improve their drought tolerance, by limiting water supply. Drought hardening of Plantain chinensis seedlings in a shade shed environment, including watering every 10 days, with each seedling receiving 500 ml of water each time, can simulate drought conditions in the natural environment to a certain extent, prompting the Plantaginis chinensis seedlings to develop stronger root systems and more efficient water utilization mechanisms, thereby enhancing the stress resistance of the seedlings.

[0074] In a possible implementation, drought training is performed in January, and the duration of drought training is 60 days. That is, this training can be performed in January for a period of 60 days, aiming to improve the drought tolerance of the plants.

[0075] After the drought training is over, the surviving Fengdu Plantago seedlings are retained as materials for returning to the wild.

[0076] S203, performing reverse slope horizontal terrace land preparation on the target return site in Cheqian, Fengdu.

[0077] S203 is similar to S101 and will not be described in detail in this embodiment.

[0078] S204. The dead branches and leaves of native plants in the target riverbank area where Fengdu Plantago grows in the wild are fully burned to obtain wood ash, which is then spread on the reverse slope horizontal steps of the target regression site to be evenly mixed with the soil.

[0079] Specifically, the dead branches and leaves of native plants are burned to obtain wood ash, which is mixed with soil. Wood ash is rich in minerals such as potassium and calcium, which can increase the mineral content and hydrogen ion concentration index (Potential of Hydrogen, pH) of the soil, improve the soil structure, increase soil fertility, and provide the necessary nutrients for the growth of Fengdu Plantain.

[0080] S205. Plant Plantain chinensis in horizontal steps on the reverse slope in March, and weed every 15 days after planting.

[0081] S205 is similar to S102 and will not be described in detail in this embodiment.

[0082] S206. Water the plants once for rooting on the day of planting, and once on the first, second and seventh days after planting.

[0083] Specifically, rooting watering is carried out on the day of planting, followed by one more watering on the 1st, 2nd and 7th day after planting. Rooting watering and subsequent waterings help promote the integration of the root system of Plantain chinensis with the new environment, ensuring that the Plantain chinensis plants obtain sufficient water in the early stages, thereby increasing the survival rate of Plantain chinensis seedlings.

[0084] S207. Sow Xanthium sibiricum seeds between the rows of Plantain truncatum in April, and thin out the grown Xanthium sibiricum in June.

[0085] S208. After all Xanthium sibiricum are removed in July, the reverse slope horizontal steps are covered with film while the Plantago asiatica is exposed, and the film is removed from the reverse slope horizontal steps in September.

[0086] S207-S208 are similar to S103-S104 and will not be described in detail in this embodiment.

[0087] The embodiment of the present application provides a method for returning Plantain to the wild, which improves the survival rate and seedling quality of Plantain to the wild by screening out seedlings suitable for returning to the wild in advance; improves the drought resistance of Plantain to the wild seedlings by drought training, thereby further enhancing the environmental adaptability of Plantain to the wild seedlings; collects and burns the dead branches and leaves of native plants in the target riverbank area where Plantain to the wild survives, obtains plant ash, and spreads it on the reverse slope horizontal steps of the target return site to mix evenly with the soil, thereby improving the soil structure, increasing soil fertility, and providing the necessary nutrients for the growth of Plantain to the wild; and irrigates the plant with root-fixing water on the day of planting, followed by another watering on the 1st, 2nd and 7th day after planting, respectively, to promote the integration of the root system of Plantain to the new environment, ensure that the Plantain to the wild plant obtains sufficient water in the early stage, thereby improving the survival rate of the Plantain to the wild seedlings.

[0088] Figure 3 This is a schematic diagram of the normal growth of Fengdu Plantago in April provided in the embodiment of the present application. Figure 3 As shown, in April, technicians conducted an investigation on the Plantain major that had returned to the wild and found that the plants were growing well and had entered the fruiting period.

[0089] Figure 4 This is a schematic diagram of Fengdu Plantago in April without spreading plant ash in the soil in advance, provided in the embodiment of the present application. Figure 4 As shown, in April, technicians conducted an investigation on the Fengdu Plantain that had returned to the wild and found that when other conditions were the same, but the native plant ash was not spread in the soil in advance, the growth condition of the Fengdu Plantain was good, but it had not entered the fruiting period. This shows that if the dead branches and leaves of native plants in the target riverbank area where Fengdu Plantain survives in the wild are not collected, and the wood ash obtained from their burning is not spread on the reverse slope horizontal steps of the target return site, the fruiting period of Fengdu Plantain will be delayed or even no fruit will be produced.

[0090] Figure 5 This is a schematic diagram of the normal growth of Fengdu Plantago in July provided in the embodiment of the present application. Figure 5As shown, technicians conducted an investigation on the Plantain Prunus armeniaca that had returned to the wild in July and found that the plants were growing well.

[0091] Figure 6 A schematic diagram of the Fengdu Plantago asiatica in July provided in the embodiment of the present application with all Xanthium sibiricum removed in advance. Figure 6 As shown in the figure, technicians conducted an investigation on the Fengdu Plantain that had returned to the wild in July and found that when other conditions were the same, the growth of the Fengdu Plantain plants was affected after all the Xanthium sibiricums were removed in May. In July, the leaf area of ​​the Fengdu Plantain plants disappeared, leaving only the petioles, and the crown width of the entire Fengdu Plantain plant also became very small. This shows that if there is no shade plant Xanthium sibiricum to provide shade, the growth of Fengdu Plantain will be seriously affected.

[0092] So far, the technical solution of the present application has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present application is obviously not limited to these specific embodiments, and the above embodiments are only used to illustrate the technical solution of the present application rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A method for field regression of Plantago asiatica, characterized in that: include: The target regression land in Fengdu Cheqian is subjected to reverse slope horizontal terrace land preparation, wherein the elevation of the target regression land and the horizontal ground is less than or equal to 5 meters, and the soil layer thickness of the target regression land is greater than or equal to 10 centimeters, the reverse slope inclination angle of the reverse slope horizontal terrace land preparation is between 5 degrees and 10 degrees, the step distance of the reverse slope horizontal terrace land preparation is 1 meter, and the step width of the reverse slope horizontal terrace land preparation is 40 centimeters to 50 centimeters; Planting Plantain fengduensis in the reverse slope level step in March, and weeding once every 15 days after planting; Sowing Xanthium sibiricum seeds between the rows of the Plantain truncatum in April, and thinning out the grown Xanthium sibiricum in June; After all the Xanthium sibiricum were removed in July, the reverse slope horizontal steps were covered with film while the Plantain fengduensis was exposed, and the film was removed from the reverse slope horizontal steps in September.

2. The method according to claim 1, characterized in that The sowing spacing of the Xanthium sibiricum seeds is 30 cm.

3. The method according to claim 1, characterized in that The thinning intensity of the Xanthium sibiricum is 0.

5.

4. The method according to claim 1, characterized in that The plantago asiatica is not covered with film within 30 cm.

5. The method according to claim 1, characterized in that The distance between two adjacent Plantain chinensis plants is 10 cm to 20 cm.

6. The method according to any one of claims 1 to 5, characterized in that Also includes: Water the plants once on the day of planting to help them take root, and once on the 1st, 2nd and 7th day after planting.

7. The method according to any one of claims 1 to 5, characterized in that Before the Fengdu Plantain is planted in the reverse slope horizontal step in March, the method further comprises: The dead branches and leaves of native plants in the target riverbank area where the Fengdu Plantago grows in the wild are fully burned to obtain wood ash, which is then spread on the reverse slope horizontal steps of the target regression site to be evenly mixed with the soil.

8. The method according to any one of claims 1 to 5, characterized in that Before the Fengdu Plantain is planted in the reverse slope horizontal step in March, the method further comprises: The seedlings of Plantago asiatica are placed in a shade shed environment for drought hardening, wherein the drought hardening comprises: watering once every 10 days, with each seedling being watered with 500 ml of water each time.

9. The method according to claim 8, characterized in that The drought training is performed in January, and the duration of the drought training is 60 days.

10. The method according to claim 8, characterized in that Before placing the seedlings of Plantago asiatica in a shade shed environment for drought hardening, the method further comprises: The seedlings of Plantago asiatica propagated from 2-year-old seeds are selected, and the root-to-crown ratio of the seedlings is greater than or equal to 3.

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