Ginkgo tree planting method

Abstract

The invention discloses a ginkgo tree planting method, and belongs to the technical field of ginkgo tree planting. The planting method disclosed by the invention comprises the following steps: (1) carrying out soil preparation on a planting area to form planting points with special shapes; (2) performing root soaking treatment on the saplings to ensure the activity of the saplings; (3) planting the saplings into planting holes, adding a seedling strengthening additive, and performing maintenance management; and (4) interplanting green manure between every two planting points, harvesting the green manure, and then performing plowing treatment. By means of the method, on one hand, the survival rate of ginkgo tree seedlings can be increased, root systems and branches of ginkgo trees can grow rapidly, on the other hand, the soil structure can be improved, the stress resistance of the ginkgo trees can be improved, and the ginkgo trees can grow rapidly in a short time.

Description

Technical Field

[0001] The present invention belongs to the technical field of ginkgo tree planting, and specifically relates to a method for planting ginkgo trees. Background Art

[0002] Ginkgo, also known as the maidenhair tree, is a plant of the Ginkgoaceae family and the Ginkgo genus. It is an arbor, up to 40 meters tall, with a breast diameter of up to 4 meters. Ginkgo is a rare and precious tree species and also a special economic fruit tree. In recent years, the purchase price of ginkgo nuts has been continuously increasing, which has stimulated the enthusiasm of the general public to cultivate ginkgo. However, ginkgo grows slowly, usually taking more than 20 years to bear fruit, and the yield is low. There are still deficiencies in the cultivation methods of ginkgo trees, and there is no systematic, complete and scientific cultivation method, which has hindered the popularization.

[0003] The main difficulties in ginkgo tree cultivation include strict soil requirements, sensitive growth environment, and great difficulty in pest and disease control. First of all, ginkgo trees have very strict requirements for soil, requiring loose, breathable and well-drained soil. If the soil is poor or the drainage is不畅, it will affect the growth of ginkgo trees. For example, the roots of ginkgo trees are relatively fragile, sensitive to waterlogging, and easily affected by underground pests. Secondly, the growth environment of ginkgo trees is sensitive, requiring sufficient sunlight and good ventilation conditions. Ginkgo trees do not like low-lying and humid environments, nor can they be blocked by buildings or tall plants for a long time, otherwise it will affect their photosynthesis and growth. In addition, the pest and disease control of ginkgo trees is more difficult. Ginkgo trees may be invaded by various pests and diseases during the growth process, especially after mechanical damage, they are easily infected by bacteria and cause diseases. It is necessary to detect and treat pests and diseases in time and select appropriate control drugs for spraying.

[0004] Therefore, it is particularly important to find a planting method that can quickly improve the growth rate of ginkgo trees and achieve the purpose of high and stable yields. Summary of the Invention

[0005] To solve the problems existing in the prior art, the present invention provides a method for planting ginkgo trees. On the one hand, the roots of the saplings are treated to improve the root activity and adaptability, so that the survival rate after transplantation is high; on the other hand, the planting pits are treated to adjust the soil environment and avoid the loss of fertilizer and water; on the other hand, green manure is intercropped, which plays the role of improving fertilizer efficiency and improving the soil.

[0006] On the first aspect, the present invention provides a method for planting ginkgo trees, including the following steps:

[0007] S1: Prepare the land in the planting area to form a "king" - shaped planting point;

[0008] S2: Select thick saplings and soak the roots;

[0009] S3: planting the seedlings into planting holes, adding seedling-strengthening additives and performing maintenance management;

[0010] S4: interplanting green manure at each planting site, and turning the soil after harvesting the green manure;

[0011] Among them, a water and fertilizer storage structure is arranged in the soil below the planting site, including a planting pit in the center, and a soil turning area, a rooting area and a water storage area are arranged in sequence below the planting pit.

[0012] Furthermore, the planting site is provided with 9 planting pits, the spacing between the planting sites is 1.5-4.5m, and the spacing between the planting pits is 0.5-2m.

[0013] Furthermore, the root immersion treatment method includes:

[0014] The seedlings are soaked in clean water, rooting agent and mugwort powder in turn, and the roots of the soaked seedlings are then wrapped with sterilized soil. Ultrasonic vibration treatment is used when soaking in clean water and rooting agent.

[0015] Furthermore, the soaking time of the clean water and the rooting agent is 1-2 days and 10-30 minutes respectively, and the particle size of the mugwort powder is 40-120 meshes.

[0016] Furthermore, the ultrasonic power for immersion in clean water is 100-500W, and the frequency is 20-50KHz, and the ultrasonic power for immersion in the rooting agent is 3-5KW, and the frequency is 50-100KHz.

[0017] Furthermore, the seedling-strengthening additive comprises the following components in parts by weight:

[0018] 30-50 parts of ammonium sulfate, 5-10 parts of diethylaminoethyl hexanoate, 20-30 parts of activated carbon, 1-8 parts of sucrose, 1-5 parts of sodium nitrophenolate and 10-25 parts of phosphogypsum.

[0019] Furthermore, the green manure includes at least one of Chinese milk vetch, ryegrass, alfalfa and paspalum.

[0020] Furthermore, the depth of the tillage area is 30-50 cm, and the soil is deeply tilled 1-2 times a year, and each time the tilled soil is mixed with fertilizer and flattened again.

[0021] Furthermore, the rooting zone has a depth of 50-80 cm, and a plurality of branches are vertically inserted in the rooting zone.

[0022] Furthermore, the depth of the water storage area is 20-50 cm, and the water storage area is mixed with slag, river sand, mugwort stems and attapulgite.

[0023] The above technical solutions provided by the embodiments of the present application have at least the following advantages compared with the prior art:

[0024] 1. The disclosed planting method of ginkgo trees forms special planting points. On the one hand, it is convenient for fertilizer and water management, and on the other hand, it improves the land utilization rate. It can form an intercropping area for planting green manure, and can also be reasonably densely planted to increase the mu yield of ginkgo.

[0025] 2. The disclosed planting method of ginkgo trees selects suitable strong seedlings and soaks their roots, which can improve the root activity. After soaking with rooting agent and mugwort powder, it can accelerate the growth of new roots, and can also reduce bacterial infection and pests and diseases, making the roots grow developed and rapidly.

[0026] 3. The disclosed planting method of ginkgo trees makes a reasonable structural design for the planting points, which can not only store water and fertilizer, but also adjust the soil structure, improve soil compaction and air permeability, enable ginkgo trees to quickly form a complex root system, and improve the stress resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the "king" - shaped planting point of the present invention;

[0028] Figure 2 It is a schematic diagram of the planting point structure of the present invention, where 1 - sapling, 2 - soil - turning area, 3 - root - fixing area, 4 - water - storage area, 5 - branch. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Apparently, the described embodiments are some but not all of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the scope of protection of the present application.

[0030] Unless otherwise specifically stated, all kinds of raw materials, reagents, instruments, and equipment used in the present application can be obtained through market purchase or can be prepared by existing methods.

[0031] In the first aspect, the present application provides a planting method of ginkgo trees, including the following steps:

[0032] S1: Prepare the land in the planting area to form a "king" - shaped planting point;

[0033] S2: Select strong saplings and soak the roots;

[0034] S3: Plant the saplings into the planting holes, add strong-seedling additives and conduct maintenance management;

[0035] S4: Intercrop green manure between each planting point, and turn over the soil after harvesting the green manure;

[0036] Among them, a water and fertilizer storage structure is arranged in the soil at the lower part of the planting point, including a planting pit in the center. A soil-turning area, a root-fixing area and a water storage area are sequentially arranged below the planting pit.

[0037] In the above solution, a nozzle of a water spray pipe can also be arranged at the center position of each "king"-shaped planting point. Through the central spraying, the ginkgo trees at each point can be directly watered on the top, which is convenient for controlling and repairing the water pipe system. The root dipping treatment of the saplings not only eliminates pests and diseases, but also improves the rooting rate, maximally improves the survival performance of the saplings and avoids replanting. The addition of strong-seedling additives can ensure the fertility and adaptability of the saplings in the early stage, can significantly enhance the rooting ability of ginkgo saplings, increase the number of roots, increase the root length, promote the construction of a huge root system for the new trees, can accumulate more nutrients and improve the stress resistance. Intercropping green manure not only has low cost, but also has high fertilizer efficiency, and at the same time has a good effect on improving the soil structure, etc.

[0038] In some alternative embodiments, such as Figure 1 shown, the planting point is provided with 9 planting holes (each black dot in the figure is a planting hole), the distance between the planting points is 1.5 - 4.5 m, and the distance between the planting holes is 0.5 - 2 m.

[0039] In some alternative embodiments, the method of the root dipping treatment includes:

[0040] Soak the saplings in clear water, rooting agent and wormwood powder in sequence, and then wrap the roots of the soaked saplings with sterilized soil. Ultrasonic vibration treatment is adopted when soaking in clear water and rooting agent.

[0041] In the above scheme, generally speaking, the transplanted seedlings will not be transplanted immediately, so they are soaked in clean water, which can restore some activity of the roots, and then the rooting agent can promote the growth of new roots. Finally, the roots contaminated with the rooting agent are contaminated and wrapped with mugwort powder, which can avoid the loss of the rooting agent and increase the nutrients. The rooting agent in the present invention is a conventional rooting agent, such as hormone rooting agents, including indoleacetic acid and naphthylacetic acid, etc., which can produce adventitious roots; for example, microbial fungi rooting agents, which promote root growth through microbial action; for example, rooting stimulant rooting agents, including chlormequat and paclobutrazol, etc., can slow down the growth rate, thereby promoting root germination, but the present invention does not give priority to such rooting agents; for example, biostimulant rooting agents, including conventional mineral potassium humate and seaweed essence, etc., can promote root development by providing nutrients and biological stimulation; and also common reagents such as salicylic acid, sodium nitrophenolate and brassinolide. When soaking with the rooting agent, it is necessary to use clean water to configure an appropriate concentration to avoid burning the roots. The present invention generally adopts a rooting agent with a concentration of 0.01-0.1% to avoid damage to plants caused by too high a concentration and slow rooting due to too low a concentration. Finally, the sterilized soil is used for wrapping and transplanting to improve the adaptability of the seedlings. This series of operations can improve the survival rate of the seedlings, accelerate the seedling growth, and rooting, and overcome the obstacles of high and low ground temperatures.

[0042] In some optional embodiments, the soaking time of the clean water and the rooting agent is 1-2 days and 10-30 minutes respectively, and the particle size of the mugwort powder is 40-120 meshes.

[0043] In some specific embodiments, the time of soaking in clear water can be 24h, 30h, 36h, 42h and 48h, etc., preferably 30h. The time of soaking in rooting agent can be 10min, 15min, 20min, 25min and 30min, etc., preferably 15min. The particle size of mugwort powder can be 40 mesh, 45 mesh, 50 mesh, 60 mesh, 70 mesh, 80 mesh, 100 mesh and 120 mesh, etc., preferably 50-60 mesh. Mugwort powder in the present invention is mugwort powder, also called wormwood powder, wormwood leaf powder, which is the wormwood fines, petioles and veins left in the process of making wormwood wool by wild wormwood, or directly crushing wormwood into powder, which are collectively referred to as wormwood powder. Crude fat, crude protein, carbohydrates and various vitamins and minerals are contained in wormwood powder, which can provide certain nutrition for the growth and development of seedlings, and it also has certain bactericidal function to avoid new root pests.

[0044] In some optional embodiments, the ultrasonic power for immersion in clean water is 100-500W, and the frequency is 20-50KHz, and the ultrasonic power for immersion in rooting agent is 3-5KW, and the frequency is 50-100KHz.

[0045] In the above scheme, the ultrasonic power in the clean water is low, so that the clean water can slowly penetrate into the root system, thereby flowing to the stem, avoiding cell rupture due to excessive ultrasonic power. The ultrasonic power in the rooting agent is enhanced, which can improve the adsorption effect of the rooting agent. In some specific embodiments, the ultrasonic power of the present invention immersed in the clean water is optimally 300W, and the frequency is 45KHz. The ultrasonic power of the present invention immersed in the rooting agent is 3KW, and the frequency is 80KHz.

[0046] In some optional embodiments, the seedling strengthening additive comprises the following components in parts by weight:

[0047] 30-50 parts of ammonium sulfate, 5-10 parts of diethylaminoethyl hexanoate, 20-30 parts of activated carbon, 1-8 parts of sucrose, 1-5 parts of sodium nitrophenolate and 10-25 parts of phosphogypsum.

[0048] In the present invention, the weight portion of ammonium sulfate can be 30 parts, 35 parts, 40 parts, 42 parts, 45 parts, 48 ​​parts and 50 parts, etc., preferably 30 parts. The weight portion of diethylaminoethyl hexanoate can be 5 parts, 6 parts, 7 parts, 8 parts, 9 parts and 10 parts, etc., preferably 8 parts. The weight portion of activated carbon can be 20 parts, 21 parts, 22 parts, 23 parts, 24 parts, 25 parts, 26 parts, 27 parts, 28 parts, 29 parts and 30 parts, etc., preferably 20 parts. The weight portion of sucrose can be 1 part, 2 parts, 3 parts, 4 parts, 5 parts, 6 parts, 7 parts and 8 parts, etc., preferably 8 parts. The weight portion of sodium nitrophenolate can be 1 part, 2 parts, 2.5 parts, 3 parts, 4 parts and 5 parts, etc., preferably 2 parts. The weight proportion of phosphogypsum can be 10 parts, 12 parts, 14 parts, 15 parts, 16 parts, 18 parts, 20 parts, 22 parts and 25 parts, etc., preferably 15 parts.

[0049] In a preferred embodiment of the present invention, the seedling strengthening additive comprises the following components in parts by weight:

[0050] 30 parts of ammonium sulfate, 8 parts of ammonium ethyl hexanoate, 20 parts of activated carbon, 8 parts of sucrose, 2 parts of sodium nitrophenolate and 15 parts of phosphogypsum. The maintenance management referred to in the present invention is to mix the seedling-strengthening additive with soil, fill it into the planting pit, and water it thoroughly. The mass ratio of the seedling-strengthening additive to the soil is 1-10:50-100, preferably 2:100.

[0051] The ammonium sulfate in the present invention is an excellent nitrogen fertilizer (commonly known as fertilizer powder), which is suitable for general soil and crops, can make branches and leaves grow vigorously, improve fruit quality and yield, and enhance the resistance of crops to disasters. The present invention can improve the activity of plant peroxidase and nitrate reductase, increase the content of chlorophyll to accelerate photosynthesis, promote the division and elongation of plant cells, promote the development of root system, and regulate the balance of nutrients in the body. The activated carbon in the present invention has a developed pore structure, a large specific surface area and abundant surface chemical groups, has a slow release effect, can slowly release the seedling-strengthening additive into the soil, improve the content of nutrients in the soil, and increase the air permeability of the surface soil. The sucrose in the present invention, as a carbon source and energy source, can provide necessary nutrients for plant cells, and can regulate osmotic pressure and reduce microbial contamination. The sodium nitrophenolate in the present invention is a powerful cell activator, which can quickly penetrate into the plant body after contacting with the plant, promote the protoplasm flow of the cell, and improve cell vitality. The phosphogypsum in the present invention contains rich soluble calcium, sulfur, phosphorus and trace elements, can improve soil compaction, and promote the absorption of nitrogen by ginkgo trees. At the same time, the addition of phosphogypsum and activated carbon can improve soil structure for a long time.

[0052] In some optional embodiments, the green manure includes at least one of Chinese milk vetch, ryegrass, alfalfa and paspalum, wherein the paspalum can be rough-stalked paspalum, broad-leaved paspalum, black-seeded paspalum and ridged paspalum.

[0053] In the above scheme, after the green manure is harvested, it can be directly decomposed naturally, or it can be mixed with soil after turning the soil and then decomposed naturally, which can activate soil nutrients, replace organic fertilizers, and improve the soil environment. Specifically, green manure crops cover the surface, which can effectively prevent soil erosion and protect the soil. These green manure crops can fix nitrogen in the atmosphere during their growth, and convert nitrogen into a form that can be used by plants through the action of rhizobia. At the same time, after the green manure is turned into the soil, its organic matter content can improve soil fertility. At the same time, green manure crops can increase the porosity of the soil through the action of their root system, improve the air permeability and water permeability of the soil, and contribute to the formation of soil aggregate structure.

[0054] In some optional embodiments, the depth of the tillage area is 30-50 cm, and the soil is deeply tilled 1-2 times a year, and each time the tilled soil is mixed with fertilizer and flattened again. The fertilizer mixed after tilling the soil is the conventional compound fertilizer or other organic fertilizer for planting ginkgo trees. When tilling the soil, fertilizer can be supplemented, and the compacted soil can be raked again to promote the healthy growth of ginkgo seedlings and improve the afforestation effect.

[0055] In some optional embodiments, the depth of the rooting zone is 50-80cm, and a number of branches are vertically inserted in the rooting zone. The branches inserted in the rooting zone can be dead branches or fresh branches. The main purpose is to form a number of channels in the soil so that the root system of the ginkgo tree can grow rapidly without being blocked, and a regular root system can be formed over a large area to promote growth. The branches themselves are also forestry waste, which can improve the utilization rate, and can also be made from local materials. After they rot, they can also serve as certain nutrients. In addition to branches, fine loam is also laid in the rooting zone to facilitate the extension and growth of tree roots.

[0056] In some optional embodiments, the depth of the water storage area is 20-50cm, and the water storage area is mixed with slag, river sand, mugwort stems and attapulgite. This mixing method can be simple mechanical mixing, or the mugwort stems can be crushed to a certain extent and then mixed evenly. The components of the water storage area are all selected from materials with a void structure, which can absorb water and store water, and can also provide a well-connected channel for the growth of the root system. It can also fix the root system, so that the new roots of the ginkgo tree grow vertically first, and then develop in all directions, forming a stable and huge system. Sufficient water also ensures the growth of the root system, and promotes the early formation of the ginkgo tree into a forest. Specifically, slag and river sand have good water permeability, while mugwort stems and attapulgite have strong water retention capacity. This combination can effectively improve the water retention capacity of the water storage area, reduce water evaporation, and provide a stable water environment for the growth of the ginkgo tree. As a natural mineral, attapulgite can improve the structure of the soil, increase the air permeability and water permeability of the soil, and is conducive to the growth of plant roots. The decomposition of mugwort stems can provide organic matter and nutrients for plants and promote plant growth. The depth of the water storage area is designed to be 20-50cm, which can effectively reduce soil erosion and maintain soil stability. The use of natural materials such as slag, river sand, mugwort stems and attapulgite is not only conducive to the protection of the ecological environment, but also can reduce the use of chemical fertilizers and pesticides. The depth of the water storage area and the nature of the mixture can help regulate the soil temperature and reduce the adverse effects of the day and night temperature difference on plants. This mixed placement method can provide habitats for different organisms, thereby improving ecological diversity. By rationally utilizing local materials, dependence on external resources can be reduced and sustainable utilization of resources can be achieved. Therefore, the water storage area provided by the present invention can effectively improve the utilization efficiency of land, promote ecological balance, and provide an innovative method for agricultural production and ecological environment restoration. In the present invention, slag, river sand, mugwort stems and attapulgite are evenly mixed in any proportion, and the preferred mass ratio is 10:10:1:10 for slag, river sand, mugwort stems and attapulgite.

[0057] The principles and features of the present invention are described below in conjunction with the examples, which are only used to explain the present invention and are not intended to limit the scope of the present invention. If no specific conditions are specified in the examples, the conditions are carried out according to conventional conditions or the conditions recommended by the manufacturer. If the manufacturer of the reagents or instruments is not specified, they are all conventional products that can be purchased commercially.

[0058] Example 1

[0059] This embodiment provides a method for planting a ginkgo tree, comprising the following steps:

[0060] S1: The planting area is prepared to form a "W"-shaped planting site. There are 9 planting pits at the planting site. The spacing between each planting site is 2.5m, the spacing between the planting pits of each planting site is 1m, and the distance between two adjacent planting sites is 0.5m, which is used for subsequent intercropping of green manure.

[0061] S2: Select sturdy seedlings and soak their roots in clean water, then treat them with ultrasound at a power of 300 W and a frequency of 45 kHz for 30 h;

[0062] Then soak in 0.01% naphthylacetic acid solution and treat with ultrasound at 3KW power and 80KHz frequency for 15min;

[0063] Finally, dip the tree roots soaked in naphthaleneacetic acid solution into 60-mesh mugwort powder, and then wrap the soaked roots of the seedlings with sterilized soil.

[0064] S3: Plant the saplings in the planting holes, mix the seedling-strengthening additive with soil in a mass ratio of 2:100, fill the mixture into the planting holes, and water thoroughly for maintenance; wherein the seedling-strengthening additive comprises the following components in parts by weight: 30 parts of ammonium sulfate, 8 parts of amine hexadecene, 20 parts of activated carbon, 8 parts of sucrose, 2 parts of sodium nitrophenolate and 15 parts of phosphogypsum.

[0065] S4: interplanting Chinese milk vetch at each planting site, harvesting the Chinese milk vetch after it matures, and turning the soil to mix the green manure with the soil for natural decomposition;

[0066] Among them, a water and fertilizer storage structure is set in the soil below the planting site, such as Figure 2 As shown, it includes a planting pit in the center (for planting saplings 1), and the planting pit is sequentially provided with a soil turning area 2, a rooting area 3 and a water storage area 4. The depth of the soil turning area is 40 cm, and the soil is deep turned twice a year, and each time the turned soil is mixed with fertilizer and flattened again. The depth of the rooting area is 50 cm, and a number of branches 5 are vertically inserted in the rooting area. The depth of the water storage area is 30 cm, and the water storage area is mixed with slag, river sand, mugwort stems and attapulgite in a mass ratio of 10:10:1:10.

[0067] Example 2

[0068] S1: The planting area is prepared to form a "W"-shaped planting site. There are 9 planting pits at the planting site. The spacing between the planting sites is 1.5m, and the spacing between the planting pits is 0.5m.

[0069] S2: Select sturdy seedlings and soak their roots in clean water, then treat them with ultrasound at a power of 500 W and a frequency of 20 KHz for 24 h;

[0070] Then soak in 0.1% indoleacetic acid solution and treat with ultrasound at 3KW power and 50KHz frequency for 20min;

[0071] Finally, dip the tree roots soaked in indoleacetic acid solution into 50-mesh mugwort powder, and then wrap the soaked roots of the seedlings with sterilized soil.

[0072] S3: Plant the saplings in the planting holes, mix the seedling-strengthening additive with soil in a mass ratio of 1:100, fill the mixture into the planting holes, and water thoroughly for maintenance; wherein the seedling-strengthening additive comprises the following components in parts by weight: 30 parts of ammonium sulfate, 5 parts of amine hexadecene, 30 parts of activated carbon, 1 part of sucrose, 1 part of sodium nitrophenolate and 20 parts of phosphogypsum.

[0073] S4: interplanting alfalfa at each planting site, harvesting the alfalfa after it matures, and allowing it to decompose naturally on the soil surface;

[0074] Among them, a water and fertilizer storage structure is set in the lower soil of the planting site, including a planting pit in the center, and a soil turning area, a rooting area and a water storage area are set below the planting pit in sequence. The depth of the soil turning area is 50cm, and the soil is deep turned twice a year. Each time, the turned soil is mixed with fertilizer and flattened again. The depth of the rooting area is 50cm, and several branches are vertically inserted in the rooting area. The depth of the water storage area is 20cm, and the water storage area is mixed with slag, river sand, mugwort stems and attapulgite in a mass ratio of 10:10:2:10.

[0075] Example 3

[0076] S1: The planting area is prepared to form a "W"-shaped planting site. There are 9 planting pits at the planting site. The spacing between the planting sites is 3m, and the spacing between the planting pits is 1m. The 1m gap between adjacent planting sites is used for subsequent planting of green manure.

[0077] S2: Select sturdy seedlings and soak their roots in clean water, then treat them with ultrasound at a power of 300 W and a frequency of 30 kHz for 24 h;

[0078] Then soak in 0.01% brassinolide solution and perform ultrasonic treatment at 5KW power and 50KHz frequency for 10 min;

[0079] Finally, dip the tree roots soaked in brassinolide solution into 100-mesh mugwort powder, and then wrap the soaked roots of the seedlings with sterilized soil.

[0080] S3: Plant the saplings in the planting holes, mix the seedling-strengthening additive with soil in a mass ratio of 2:100, fill the mixture into the planting holes, and water thoroughly for maintenance; wherein the seedling-strengthening additive comprises the following components in parts by weight: 30 parts of ammonium sulfate, 10 parts of amine hexadecene, 30 parts of activated carbon, 5 parts of sucrose, 1 part of sodium nitrophenolate and 20 parts of phosphogypsum.

[0081] S4: interplant ryegrass at each planting site, harvest the ryegrass after it matures, and turn the soil over to mix the ryegrass with the soil for natural decomposition;

[0082] Among them, a water and fertilizer storage structure is set in the lower soil of the planting site, including a planting pit in the center, and a soil turning area, a rooting area and a water storage area are set below the planting pit in sequence. The depth of the soil turning area is 30cm, and the soil is deep turned once a year. Each time, the turned soil is mixed with fertilizer and flattened again. The depth of the rooting area is 50cm, and several branches are vertically inserted in the rooting area. The depth of the water storage area is 20cm, and the water storage area is mixed with slag, river sand, mugwort stems and attapulgite in a mass ratio of 10:2:0.5:5.

[0083] The planting method of the ginkgo tree of the present invention ensures that the ginkgo tree has sufficient nutrition and complete structure before transplanting through scientific transplanting and maintenance management, and establishes a new water balance system after transplanting to ensure the survival rate, promote the germination and growth of a large number of new roots and new shoots, and ensure the luxuriance and rejuvenation of the ginkgo tree.

[0084] The above is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A method for planting ginkgo trees, characterized in that: It includes the following steps: S1: Prepare the soil in the planting area to form "king"-shaped planting points; S2: Select strong saplings and perform root soaking treatment; S3: Plant the saplings into the planting holes, add strong-seedling additives and conduct maintenance management; S4: Interplant green manure between each planting point, and after harvesting the green manure, conduct soil turning treatment; Wherein, a water and fertilizer storage structure is arranged in the soil at the lower part of the planting point, including a planting pit in the center, and a soil turning area, a root fixing area and a water storage area are sequentially arranged below the planting pit.

2. The method for planting ginkgo trees according to claim 1, characterized in that: There are 9 planting pits in the planting point, the spacing between the planting points is 1.5 - 4.5 m, and the spacing between the planting pits is 0.5 - 2 m.

3. The method for planting ginkgo trees according to claim 1, characterized in that: The method of the root soaking treatment includes: Soak the saplings successively in clear water, rooting agent and Artemisia argyi powder, and then wrap the roots of the soaked saplings with sterilized soil. Ultrasonic vibration treatment is adopted when soaking in clear water and rooting agent.

4. The method for planting ginkgo trees according to claim 3, characterized in that: The soaking time in clear water and rooting agent is 1 - 2 d and 10 - 30 min respectively, and the particle size of the Artemisia argyi powder is 40 - 120 mesh.

5. The method for planting ginkgo trees according to claim 3, characterized in that: The ultrasonic power when soaking in clear water is 100 - 500 W, the frequency is 20 - 50 KHz, the ultrasonic power when soaking in rooting agent is 3 - 5 KW, and the frequency is 50 - 100 KHz.

6. The method for planting ginkgo trees according to claim 1, characterized in that: The strong-seedling additives include the following components in parts by weight: 30 - 50 parts of ammonium sulfate, 5 - 10 parts of diethyl aminoethyl hexanoate, 20 - 30 parts of activated carbon, 1 - 8 parts of sucrose, 1 - 5 parts of sodium nitrophenolate and 10 - 25 parts of phosphogypsum.

7. The method for planting ginkgo trees according to claim 1, characterized in that: The green manure includes at least one of Chinese milk vetch, ryegrass, alfalfa and paspalum.

8. The method for planting ginkgo trees according to claim 1, characterized in that: The depth of the soil turning area is 30 - 50 cm, the soil is deeply turned 1 - 2 times a year, and the turned soil and fertilizer are re-leveled each time.

9. The method for planting ginkgo trees according to claim 1, characterized in that: The depth of the root fixing area is 50 - 80 cm, and several tree branches are vertically inserted in the root fixing area.

10. The method for planting ginkgo trees according to claim 1, characterized in that: The depth of the water storage area is 20 - 50 cm, and slag stones, river sand, Artemisia argyi stems and attapulgite are mixed and placed in the water storage area.

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