Device and method for safely planting and utilizing plants in chromium-contaminated soil

Abstract

The invention discloses a device and method for safely planting and utilizing plants in chromium-contaminated soil, the device structurally comprises an insertion rod, a fixing frame, a main frame, a groove, a convex block, a clamping block, a baffle and an extension fixing frame, the insertion rod penetrates through the main frame and is movable, the fixing frame is placed above the main frame and can be disassembled and assembled, and the groove and the convex block are assembled on the side surface of the main frame; the clamping block is fixed to the lower surface of the main frame. The baffle and the main frame are of an integrated structure. The inserting rod comprises a limiting block, a pushing block, a stress rod and a fixing rod, the limiting block is installed on the upper surface of the main frame, the pushing block and the stress rod are of an integrated structure, the fixing rod is installed at the bottom of the stress rod, after pelargonium odoratissimum is transplanted, surface soil is firstly compacted, the pelargonium odoratissimum is moved into bottom soil through the main frame, vertical reinforcing is achieved through the shell, and transverse supporting is provided through the extension body; the structure ensures that soil of pelargonium odoratissimum in the main frame is tightly compacted and is stably combined with bottom layer soil, and the overall stability is enhanced.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of planting, more specifically, especially relates to a kind of chromium-contaminated soil plant safe planting utilization device and method. BACKGROUND

[0002] The plant safe planting utilization of chromium-contaminated soil refers to planting specific plants on chromium-contaminated soil through scientific phytoremediation technology and agricultural management measures, using plants to absorb, fix or transform chromium in soil, reducing its toxicity and mobility, and through the selection of low-accumulation crops or non-food plants, achieving agricultural, ecological or economic benefits while remediating soil, avoiding pollutants entering the food chain, improving sleep, reducing swelling and relieving itching, and developing a variety of products such as patchouli essential oil, patchouli flavored tea, patchouli mosquito repellent, infant swelling and itching relieving composition, and antibacterial handmade soap. In addition, it is also widely used in food and medical industries, which fully demonstrates that patchouli is a plant with high economic benefit. More importantly, patchouli has high cutting propagation rate, strong reproductive ability and no seasonal restrictions. The cutting seedlings have wide adaptability and grow fast, fully reflecting the fast reproductive growth ability of patchouli. Since the mine slope soil where patchouli is planted needs further treatment, the treated mixed surface layer will form a soft and hard layer, and patchouli is prone to slipping and planting failure during planting. SUMMARY

[0003] To solve the above technical problems, the purpose and effect of the plant safe planting utilization device and method for chromium-contaminated soil are achieved by the following specific technical means: The structure includes an insertion rod, a fixing frame, a main frame, a groove, a protrusion, a clamping block, a baffle and an extension fixing frame. The insertion rod passes through the main frame and is movable. The fixing frame is placed above the main frame and can be disassembled. The groove and the protrusion are assembled on the side surface of the main frame. The clamping block is fixed to the lower surface of the main frame. The baffle is an integrated structure with the main frame. The extension fixing frame can be used instead of the fixing frame. The insertion rod includes a limiting block, a push block, a force rod and a fixing rod. The limiting block is installed on the upper surface of the main frame. The push block and the force rod are an integrated structure. The fixing rod is installed at the bottom of the force rod. The fixing rod includes a drill bit, a spring, an elastic port, an epitaxial body, a shell, and a push rod. The spring is installed between the drill bit and the push rod. The elastic port penetrates the shell to connect the space inside and outside. The epitaxial body is connected to the bottom of the push rod. The push rod and the force rod are an integrated structure. The shell is integrated with the main frame. Each group of the epitaxial body and the elastic port is provided with four circularly distributed elastic ports. The drill bit bottom is a pointed structure, which can better penetrate into the soil, the drill bit top has an inclination angle, which can assist the extension body to move out, the elastic mouth is expanded into a petal-shaped structure under the thrust of the extension body, and the elasticity is continuously maintained, and the extension body is restored to the original state when the extension body is reset, the extension body will extend in four directions when moving, and the groove and the protrusion are provided with two in each group and can be buckled with a new group.

[0004] As a further improvement of the application, the clamping block auxiliary main frame increases the adhesion between the main frame and the soil and is in a V-shaped structure distributed at four corners, the baffle auxiliary fixing frame is assembled and provided with four, and the main frame can further compact the main frame and the soil while being pressed downward.

[0005] As a further improvement of the application, the fixing rod is provided with four in a group, the pushing block is fixed by the limiting block when being pressed, the stress rod will be reset by the support of the spring when the limiting block moves to the side, the shell is fixed vertically, the extension body is horizontally assisted and fixed, the limiting block is provided with four and two in a group, and the stress rod can be released by extruding to both sides.

[0006] As a further improvement of the application, the fixing frame comprises a fixing plate, a pull rod, a limiting rod, a limiting frame and a magnetic block, the fixing plate and the limiting rod are in an integrated structure, the pull rod penetrates through the limiting rod and is movable, the limiting frame and the pull rod are in an integrated structure, the magnetic block is connected with the limiting frame, and the pull rod is in an L-shaped structure, and the vertical rod is convenient for being pushed by external force.

[0007] As a further improvement of the application, the limiting frame is in a semicircular structure, two can be combined into a circle, the range of the limiting frame after combination can stabilize the plant, the pull rod can move horizontally along the limiting rod, and the fixing plate is placed on the baffle.

[0008] As a further improvement of the application, the extension fixing frame comprises a bushing ring and a support strip, the support strip is inserted into the bushing ring slot and can be disassembled, and the support strip is a elastic support steel bar for assisting the branch and leaf.

[0009] As a further improvement of the application, the plant safe planting utilization device for chromium-contaminated soil comprises a main frame, a fixing frame, a limiting rod, a limiting block, a stress rod, a shell, a baffle, a fixing plate, a pull rod, a limiting frame and a magnetic block. I. Incense seedling: select healthy, disease-free and pest-free incense plants as female parents, cut the tender branches with 4 leaves and 1 top bud at the leaf axil as cuttings, insert the cuttings into the hole plate filled with nutrient soil, pour water immediately after cutting, move into the greenhouse for maintenance, and the cultivation period is 30 days, and water is poured once every 3-4 days during the period. II. Chromium-contaminated soil treatment: The chromium-contaminated soil on the mine slope is removed and cleaned of waste, weeds, stones and other plant growth substances. The contaminated soil also needs to be plowed and ridged for conventional tillage treatment. The pretreated chromium-contaminated soil (chromium content: 3100±100 mg / kg) can be mixed with three fillers in a volume ratio of 1:1 to make different cultivation substrates: filler one chromium-contaminated soil + yellow soil (chromium content: 2300±100 mg / kg, marked as T1); filler two chromium-contaminated soil + nutrient soil (chromium content: 2000±10 mg / kg, marked as T2); filler three chromium-contaminated soil + mixed soil of yellow soil and nutrient soil (volume ratio 1:1, chromium content: 1800±10 mg / kg, marked as T3); III. Transplanting of Phlox paniculata: Selecting Phlox paniculata plants with a height of 5 cm and healthy growth without diseases and pests, loosening the substrate around the plug tray with a small shovel, then taking them out of the plug tray without damaging the roots as much as possible, gently shaking off the nutrient soil accumulated on the roots of the plants, and retaining 1 main branch and 2 side branches, then wiping off the rest of the leaf buds and side branches, and planting them in the mine slope, inserting the main frame into the pretreated soil, stabilizing the plant position by the fixing frame, and immediately watering the roots after transplantation; IV. Cultivation and management of Phlox paniculata: Within 10 days after transplantation, water once every 4-5 days at 6:00 AM, then water once every 10-15 days, so that the soil moisture content is 30%-40% of the field water holding capacity, and after the plants grow stably for a period of time, the fixing frame and the main frame can be removed in turn.

[0010] The nutrient soil is a mixture of peat soil and perlite in a weight ratio of 10:1.

[0011] Compared with the prior art, the present application has the following advantages: 1. After the transplantation of Phlox paniculata is completed, the surface soil is first compacted, the main frame is moved into the bottom soil, the outer shell is vertically reinforced, and the outer extension body provides horizontal support, which ensures that the soil in the main frame is tightly compacted and stably combined with the bottom soil, thereby enhancing the overall stability.

[0012] 2. While the main frame stabilizes the soil of Phlox paniculata, the fixing frame is installed above the main frame to further support and limit the plant and the soil, ensuring that Phlox paniculata can grow stably, and after the root system of Phlox paniculata develops stably, the fixing frame and the main frame can be removed in turn to complete the entire planting process.

[0013] 3. The Phlox paniculata plants cultivated by the present application have uniform and consistent growth, consistent plant growth, many and strong branches, thick and dense leaves, can effectively reduce the chromium content in the soil by 3.20%-7.44%, and mainly enrich in the roots with less content in the leaves, thereby ensuring the safety and effectiveness of the leaf products.

[0014] 4. Each plant is planted and protected by an independent main frame to ensure reasonable plant spacing and adapt to slight changes in soil environment. When the main frame is idle, it can be connected through the recess and protrusion to facilitate carrying and storage. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the plant safe planting and utilization device for chromium contaminated soil.

[0016] Figure 2 It is a bottom view structural schematic diagram of the main frame.

[0017] Figure 3 It is a sectional structural schematic diagram of the main frame.

[0018] Figure 4 It is a structural schematic diagram of the fixed rod.

[0019] Figure 5 It is a structural schematic diagram of the fixed frame.

[0020] Figure 6 It is an exploded structural schematic diagram of the plant safe planting and utilization device for chromium contaminated soil.

[0021] Figure 7 It is a structural schematic diagram of the extended fixed frame.

[0022] Figure 8 It is a step schematic diagram of the plant safe planting and utilization method for chromium contaminated soil.

[0023] Figure 9 It is an analysis of the growth of the plant under different cultivation substrates.

[0024] Figure 10 It is an analysis of the chromium enrichment capacity of the plant under different treatments.

[0025] In the figure: insertion rod-1, fixed frame-2, main frame-3, recess-4, protrusion-5, clamping block-6, baffle-7, extended fixed frame-8, limiting block-11, push block-12, force rod-13, fixed rod-14, drill bit-41, spring-42, elastic port-43, epitaxial body-44, shell-45, push rod-46, fixed plate-21, pull rod-22, limiting rod-23, limiting frame-24, magnetic attraction block-25. DETAILED DESCRIPTION

[0026] The application will be further described below in combination with the drawings: Example 1: as shown in the drawings Figure 1 to the drawings Figure 4As shown: The application provides a device and method for safe planting of plants in chromium-contaminated soil, which comprises an insertion rod 1, a fixing frame 2, a main frame 3, a groove 4, a protruding block 5, a clamping block 6, a baffle 7, and an extension fixing frame 8. The insertion rod 1 comprises a limiting block 11, a pushing block 12, a force receiving rod 13, and a fixing rod 14. The fixing rod 14 comprises a drill bit 41, a spring 42, an elastic port 43, an extension body 44, an outer shell 45, and a pushing rod 46. The bottom of the drill bit 41 is in the shape of a sharp point, which can better penetrate into the soil.

[0027] The clamping block 6 is in the shape of a V and is distributed at four corners to increase the adhesion between the main frame 3 and the soil.

[0028] The two fixing rods 14 are a group and are provided with four in total. The limiting block 11 is provided with four in total and two in a group, and the stress receiving rod 13 can be released by pressing the limiting block 11 to the sides. The extension body 44 is made of elastic steel and is limited by the drill bit 41 when it extends out of the elastic port 43. The specific use mode and effect of the embodiment are as follows: In the application, after the soil pretreatment is completed, the encounter encounter is transplanted and planted, the encounter encounter is arranged and planted through the set distance, the main frame 3 is inserted into the soil after the surface soil is further compacted, the tip of the drill bit 41 is moved easily, and the main frame 3 is in contact with the soil surface. The clamping block 6 increases the adhesive friction between the main frame 3 and the soil, and after the main frame 3 is stable on the soil surface, the stress rod 13 is pushed by an external force, so that the push block 12 moves downward and extrudes and buckles the limiting block 11. The push rod 46 pushes the outer extension body 44 downward through the space limitation of the shell 45, the outer extension body 44 is limited by the slope at the upper end of the drill bit 41, and the outer extension body 44 extends out of the elastic port 43, so that the outer extension body 44 can be fixed in the transverse position of the shell 45. When it is necessary to remove, the limiting block 11 is only pushed to both sides, and the push block 12 will be released. The spring 42 pushes the stress rod 13 upward by the elastic force of the spring 42, and the outer extension body 44 will return to the original position, and the main frame 3 is taken out as a whole. Embodiment 2: as shown in the accompanying Figure 5 to the accompanying Figure 7 The specific use mode and effect of the embodiment are as follows: The fixing frame 2 comprises a fixing plate 21, a pull rod 22, a limiting rod 23, a limiting frame 24 and a magnetic attraction block 25. The fixing plate 21 and the limiting rod 23 are integrated structures. The pull rod 22 penetrates through the limiting rod 23 and is movable. The limiting frame 24 and the pull rod 22 are integrated structures. The magnetic attraction block 25 is connected with the limiting frame 24. The pull rod 22 is an L-shaped structure, and the vertical rod facilitates external force to be pushed. The magnetic attraction block 25 is mutually attracted to fix the limiting frame 24.

[0029] The limiting frame 24 is a semicircular structure, and two limiting frames 24 can be combined into a circular structure. The range of the combined limiting frame 24 can stabilize the plants. The pull rod 22 can move horizontally along the limiting rod 23. The fixing plate 21 is placed on the baffle 7. The limiting frame 24 limits and consolidates the just transplanted plants.

[0030] The extension fixing frame 8 comprises a plug-in hole ring 81 and a support strip 82. The support strip 82 is inserted into the slot of the plug-in hole ring 81 and can be disassembled. The support strip 82 is a flexible support steel strip, which assists in supporting branches and leaves. The plug-in hole ring 81 is provided with six plug-in holes, and the remaining structures are consistent with the fixing frame 2.

[0031] The specific use mode and effect of the embodiment are as follows: In the present application, the pachouli is transplanted. After the main frame 3 is fixed, the pachouli is placed in the middle end of the main frame 3, the surrounding soil is filled and compacted, the limiting frame 24 is in the open state, the fixed plate 21 is placed on the baffle 7, the limiting frame 24 is combined by pushing the pull rod 22 along the limiting rod 23, the magnetic attraction block 25 is adsorbed and fixed, the pachouli is in the position of the circle of the limiting frame 24, the position of the pachouli is assisted to be fixed, after the pachouli grows stably, the limiting frame 24 is unfolded to the two sides, the fixed frame 2 is taken off, and then the main frame 3 is taken off. If the pachouli with large branches and leaves needs to be transplanted, the fixed frame 2 is replaced by the extended fixed frame 8, the supporting strip 82 is inserted into the hole of the insertion hole ring 81, and the branches and leaves of the pachouli are assisted to be supported, and the elasticity of the supporting strip 82 does not affect the growth of the branches and leaves. Example 3: as shown in the accompanying Figure 8 to the accompanying Figure 10 illustrations: The plant safe planting and utilization device for the chromium contaminated soil has the following plant safe planting and utilization method steps for the chromium contaminated soil: I. Pachouli seedling raising: healthy and pest-free pachouli plants are selected as female parents, and tender branches with 4 leaf blades and 1 terminal bud at leaf axils are cut off as cuttings, the cuttings are inserted into the hole tray filled with nutrient soil, and the cuttings are immediately watered after being inserted, and then the cuttings are moved into a greenhouse for maintenance, and the cultivation period is 30 days. During the period, the cuttings are watered once every 3-4 days. II. Chromium contaminated soil treatment: the waste, weeds, stones and other substances that are not conducive to plant growth are removed and cleaned from the chromium contaminated soil of the mine slope, and the contaminated soil needs to be subjected to corresponding ploughing, ridging and other conventional tillage treatments. The pretreated chromium contaminated soil (chromium content: 3100±100 mg / kg) can be mixed with three kinds of fillers in a volume ratio of 1:1 to prepare different cultivation substrates: filler one chromium contaminated soil + yellow soil (chromium content: 2300±100 mg / kg, marked as T1); filler two chromium contaminated soil + nutrient soil (chromium content: 2000±10 mg / kg, marked as T2); filler three chromium contaminated soil + yellow soil and nutrient soil mixed soil (volume ratio 1:1, chromium content: 1800±10 mg / kg, marked as T3); III. Pachouli transplanting: pachouli plants with a seedling height of 5 cm and healthy growth and no pests are selected, the substrate around the hole tray is loosened with a small shovel, and then the pachouli plants are taken out from the hole tray without damaging the roots as much as possible. After being taken out, the nutrient soil accumulated on the roots of the plants is shaken off, and 1 main branch and 2 side branches are retained, and the rest of the leaf buds and side branches are wiped off, and then the plants are planted in the mine slope, the main frame 3 is inserted into the pretreated soil, the plants are stably planted by the fixed frame 2, and after the transplanting is completed, the plants are immediately watered with root fixing water. IV. Cultivation management of Phlox subulata: within 10 days after transplanting, water once every 4-5 days in the morning at 6:00 AM, then water once every 10-15 days, so that the soil moisture content is 30%-40% of the field water holding capacity, after the plant grows for a period of time, the fixed frame 2 is first disassembled, and then the main frame 3 is disassembled.

[0032] The nutrient soil is mixed according to 10:1 by weight of peat soil and perlite, and the Phlox subulata in the three types of chromium-polluted soil can survive. The specific use mode and effect of the embodiment are as follows: In the application, in order to realize safe utilization and management of chromium-polluted soil, reduce ecological pollution and ensure safe and effective risk control, a safe and effective utilization mode of chromium-polluted soil is discussed, that is, the chromium-polluted soil is mixed with fillers, and then Phlox subulata is cultivated, the influence of the cultivation substrate mixed by different fillers and chromium-polluted soil on the growth of Phlox subulata is tested through a completely random test; Through multiple tests and statistical analysis, the influence of the cultivation substrate mixed by different fillers and chromium-polluted soil on the growth of Phlox subulata is as shown in the table. Figure 9 The test results show that: under the four types of cultivation substrates, Phlox subulata can survive, but the growth potential is different, and the cultivation effect of the cultivation substrate mixed by filler two or filler three and chromium-polluted soil on Phlox subulata is good. Under the cultivation substrate, Phlox subulata has consistent growth, more and robust branches, and thick and dense leaves; the daily plant height growth rates are 0.18 cm and 0.17 cm respectively; and the cultivation effect is significantly different from that of other cultivation substrates; Figure 9 The letter marking method is used to represent the multiple comparison results, according to the statistical analysis average number multiple comparison marking letter method, lowercase Latin letters a, b, c, d, … are used to represent the significant difference level. First, arrange the average numbers of each treatment from large to small, mark a after the largest average number, and compare the average number with the following average numbers, and mark b for the significant difference. In succession, mark the same letter for the insignificant difference; if there is the same letter between two average numbers, the difference is not significant, otherwise the difference is significant; On the basis of analyzing the influence of the cultivation substrate, the chromium enrichment capacity of Phlox subulata is compared, that is, the chromium content in the soil after planting Phlox subulata and the chromium content and enrichment capacity in the roots, stems and leaves of Phlox subulata under different cultivation substrates are compared; The test results are as shown in the table. Figure 10The chromium content in the soil is reduced after planting the Pogostemonis Herba, and the chromium content in the chromium contaminated soil added with the fillers is reduced by 3.20%, 6.25% and 7.44% respectively. The chromium content in the root of the three organs of Pogostemonis Herba is the highest, the chromium content in the stem is the second, and the chromium content in the leaf is the lowest. The enrichment ability of Pogostemonis Herba in the chromium in the soil is different, and the enrichment ability of Pogostemonis Herba in the cultivation medium mixed with the filler three and the chromium contaminated soil is higher, and the enrichment ability of Pogostemonis Herba in the cultivation medium mixed with the filler two reaches a significant difference; The technical solutions of the present application or the technical solutions inspired by the technical solutions of the present application can be used to design similar technical solutions to achieve the above technical effects, which are within the protection scope of the present application.

Claims

1. A plant safe planting device for chromium contaminated soil, which structure comprises an insertion rod (1), a fixing frame (2), a main frame (3), a groove (4), a protrusion (5), a clamping block (6), a baffle (7), an extension fixing frame (8), the insertion rod (1) penetrates through the main frame (3) and is movable, the fixing frame (2) is placed above the main frame (3) and can be disassembled, the groove (4) and the protrusion (5) are assembled on the side surface of the main frame (3), the clamping block (6) is fixed on the lower surface of the main frame (3), the baffle (7) is an integrated structure with the main frame (3), and the extension fixing frame (8) is replaceable with the fixing frame (2), characterized in that: the insertion rod (1) comprises a limiting block (11), a push block (12), a force receiving rod (13) and a fixing rod (14), the limiting block (11) is installed on the upper surface of the main frame (3), the push block (12) and the force receiving rod (13) are an integrated structure, and the fixing rod (14) is installed at the bottom of the force receiving rod (13); the fixing rod (14) comprises a drill bit (41), a spring (42), an elastic port (43), an extension body (44), an outer shell (45) and a push rod (46), the spring (42) is installed between the drill bit (41) and the push rod (46), the elastic port (43) penetrates through the outer shell (45) to connect the inner and outer spaces, the extension body (44) is connected to the bottom of the push rod (46), the push rod (46) and the force receiving rod (13) are an integrated structure, the outer shell (45) is integrated with the main frame (3), and each group of the extension body (44) and the elastic port (43) is provided with four circularly and uniformly distributed parts; the bottom of the drill bit (41) is in a pointed structure, which can better penetrate into the soil, the top of the drill bit (41) has an inclination angle, which can assist the extension body (44) to move out, the elastic port (43) is expanded into a petal-shaped structure under the thrust of the extension body (44), continuously maintains the elasticity, and restores to the original state when the extension body (44) is reset, and the extension body (44) will extend in four directions when moving. The clamping block (6) assists the main frame (3) to increase the adhesion between the main frame (3) and the soil and is in a V-shaped structure distributed at four corners, the baffle (7) assists the assembly of the fixing frame (2) and is provided with four baffles. Two fixing rods (14) are provided in one group, a total of four fixing rods (14) are provided, the push block (12) is clamped and fixed through the limiting block (11) when being pressed down, the limiting block (11) moves to the side and the force receiving rod (13) will be reset through the support of the spring (42), the outer shell (45) is fixed vertically, and the extension body (44) is horizontally assisted to be fixed. The fixing frame (2) comprises a fixed plate (21), a pull rod (22), a limiting rod (23), a limiting frame (24) and a magnetic block (25), the fixed plate (21) and the limiting rod (23) are an integrated structure, the pull rod (22) penetrates through the limiting rod (23) and is movable, the limiting frame (24) and the pull rod (22) are an integrated structure, and the magnetic block (25) is connected with the limiting frame (24).

2. The device for safe planting of plants in chromium-contaminated soil according to claim 1, characterized in that: ​ 3. The device for safe planting of plants in chromium-contaminated soil according to claim 1, characterized in that: ​ 4. The device for safe planting of plants in chromium-contaminated soil according to claim 1, characterized in that: ​ 5. The device for safe planting of plants in chromium-contaminated soil according to claim 4, characterized in that: The limiting frame (24) is a semicircular structure, two can be combined into a circular, the limiting frame (24) after the range can be stable to the plant, the pull rod (22) can follow the limiting rod (23) and move horizontally.

6. The device for safe planting of plants in chromium-contaminated soil according to claim 1, characterized in that: The extension fixing frame (8) comprises a bushing ring (81) and a support strip (82), the support strip (82) is inserted into the slot of the bushing ring (81) and can be disassembled.

7. A method for safe planting of plants in soil contaminated with chromium, characterized in that: The plant safe planting device for chromium-contaminated soil according to any one of claims 1-6, and the plant safe planting method for chromium-contaminated soil comprises the following steps: I. Seedling raising of Phlox subulata: select healthy and pest-free Phlox subulata plants as female parents, cut the tender branches with 4 leaves and 1 terminal bud at the leaf axil as cuttings, insert the cuttings into the plug tray filled with nutrient soil, pour water immediately after cutting, and move into the greenhouse for cultivation for 30 days, pour water every 3-4 days during the period; II. Treatment of chromium-contaminated soil: remove and clean the waste, weeds, stones and other substances that are not conducive to plant growth from the chromium-contaminated soil on the mine slope, and the contaminated soil needs to be treated with corresponding ploughing and ridging, etc. The pretreated chromium-contaminated soil can be mixed with three kinds of fillers in a volume ratio of 1:1 to prepare different cultivation substrates: filler one chromium-contaminated soil + yellow soil; filler two chromium-contaminated soil + nutrient soil; filler three chromium-contaminated soil + mixed soil of yellow soil and nutrient soil; III. Transplanting of Phlox subulata: select Phlox subulata plants with a seedling height of 5 cm and healthy and pest-free growth, loosen the substrate around the plug tray with a small shovel, then take it out from the plug tray without damaging the root system as much as possible, shake off the nutrient soil accumulated on the root system of the plant after taking it out, and keep 1 main branch and 2 side branches, and wipe off the rest of the leaves and side branches, and plant it in the mine slope, insert the main frame (3) into the pretreated soil, and fix the plant position with the fixing frame (2), and pour root-fixing water immediately after transplanting; IV. Cultivation and management of Phlox subulata: within 10 days after transplanting, water once every 4-5 days at 6:00 AM, then water once every 10-15 days, so that the soil moisture content is 30%-40% of the field water holding capacity, and after the plant grows stably for a period of time, the fixing frame (2) can be removed, and the main frame (3) can be removed.

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