A land maintenance method and apparatus suitable for the cultivation of Suaeda salsa (a type of lilac) after the initial cultivation period.

Abstract

This invention discloses a land maintenance method and apparatus suitable for the cultivation of Suaeda salsa in wetland areas, relating to the field of ecological restoration and land improvement technology. Ecological restoration is achieved through an ecological restoration fertilizer comprising: 30-60 parts Suaeda salsa powder, 30-60 parts segmented Suaeda salsa grass, and 1-5 parts fermentation agent. The preparation method of the ecological restoration fertilizer includes the following steps: harvesting Suaeda salsa mother grass on land; dividing the obtained Suaeda salsa mother grass into two parts; pulverizing the first part and passing it through an 80-100 mesh sieve to obtain Suaeda salsa powder. This invention uses harvested Suaeda salsa mother grass as raw material to prepare an ecological restoration fertilizer. The resulting fertilizer has sufficient nutrients and a high microbial content, making it suitable for soil improvement in coastal tidal flats. It can enhance soil fertility, improve soil permeability, prevent soil compaction, and promote strong root development when planting Suaeda salsa.

Description

Technical Field

[0001] This invention relates to the field of ecological restoration and land improvement technology, and in particular to a land maintenance method and apparatus suitable for converting Suaeda salsa (a type of lilac) back to wetland cultivation. Background Technology

[0002] Land ecological restoration is an important environmental protection technology, whose background can be traced back to human destruction and overexploitation of the natural environment. With population growth and economic development, the problems of land resource destruction and pollution have become increasingly serious, giving rise to land ecological restoration technology.

[0003] Land ecological restoration technologies mainly include vegetation restoration, soil improvement, and bioremediation. Among these, vegetation restoration is one of the most commonly used restoration methods. By planting suitable plants, land cover can be increased, soil erosion can be prevented, soil quality can be improved, and the ecological environment of the land can be enhanced. At the same time, vegetation restoration can also provide more biodiversity to the ecosystem, promoting ecological balance and sustainable development.

[0004] Returning straw to the field is also a method of land improvement and maintenance. Returning straw to the field increases soil organic matter and nutrient content. Wet wheat straw contains abundant nitrogen, phosphorus, potassium, calcium, magnesium, and other nutrients and organic matter, with a nitrogen content of 0.32%, phosphorus content of 0.04%, potassium content of 0.65%, and an organic matter content of approximately 46.3%. After five years of continuous straw return to the field, soil organic matter can increase by 0.29%. Returning straw to the field also improves soil physical properties. After straw is returned to the field, the humic acid formed by microbial action binds with calcium and magnesium in the soil to form calcium humate and magnesium humate, resulting in a large number of water-stable aggregates in the soil. After returning straw to the field, the soil bulk density decreases, and the total porosity increases. The improvement in soil physical properties enhances soil permeability, improves soil water and fertilizer retention capacity, helps increase soil temperature, promotes the activity of soil microorganisms and the decomposition and utilization of nutrients, and is beneficial to crop root growth and development, promoting root absorption activities. Returning straw to the field improves the physical and chemical properties of the soil, increases the content of organic matter and various nutrients, reduces soil moisture evaporation, conserves soil moisture, and enhances the soil's water and fertilizer retention capacity, resulting in a significant yield increase.

[0005] The aforementioned land improvement technologies are mostly applied in non-coastal areas. In the past, large-scale land reclamation and fish farming activities polluted the sea, causing the degradation of many wetland functions, a reduction in species, and the migration of migratory birds. In recent years, promoting "returning aquaculture to wetlands," restoring wetland ecology, gradually restoring natural aquatic ecosystems, and increasing biodiversity have become important goals.

[0006] In coastal mudflat environments, without the protection of mother grass, seeds are difficult to keep in their original planting position when washed by seawater. Furthermore, the soil has poor permeability and is not suitable for vegetation survival. Therefore, traditional land improvement methods are difficult to apply to coastal mudflat environments.

[0007] A search revealed a Chinese patent application, CN202011324650.3, which discloses a composite remediation method for petroleum hydrocarbon-contaminated soil. The method involves first sampling, then culturing microorganisms from the samples to obtain a soil remediation agent. The soil is then coarsely sieved, piled in the remediation area, leveled, and watered to maintain a soil moisture content of 20%–35%, and left to stand for 1–3 days. The soil remediation agent is then applied to the surface of the contaminated soil, followed by plowing to ensure thorough mixing, and then left to stand for 10–15 days. Next, water is sprayed into the soil, and rapeseed seeds are sown, nurturing the seedlings. A plow is then used to till the contaminated soil with the rapeseed seedlings, incorporating them into the contaminated soil. After plowing, rapeseed is sown again. Once the rapeseed seedlings have grown, soil samples are taken for testing, completing the soil remediation process. The composite remediation method in the aforementioned patent has the following shortcomings: the method is not suitable for the coastal mudflat environment, and the seeds are easily washed away by seawater when sowing on the coastal mudflats. Therefore, further improvements are needed. Summary of the Invention

[0008] The purpose of this invention is to overcome the shortcomings of the existing technology and to propose a land maintenance method and device suitable for the cultivation of Suaeda salsa in wetland areas.

[0009] To achieve the above objectives, the present invention adopts the following technical solution:

[0010] A land maintenance method suitable for converting Suaeda salsa to wet-winged Suaeda salsa cultivation involves ecological restoration through ecological restoration fertilizer, which includes:

[0011] 30-60 parts of winged Suaeda salsa powder, 30-60 parts of segmented winged Suaeda salsa grass, and 1-5 parts of fermentation agent;

[0012] The preparation method of the ecological restoration fertilizer includes the following steps:

[0013] S1: Harvest the mother grass of Suaeda salsa on land;

[0014] S2: Divide the obtained Suaeda salsa mother grass into two parts;

[0015] S3: The first part is crushed and passed through an 80-100 mesh sieve to obtain Suaeda salsa powder;

[0016] S4: The second part is cut into segments to obtain segmented winged Suaeda salsa, with the length of the segmented winged Suaeda salsa controlled at 1-3cm;

[0017] S5: Mix and ferment the powder, segments of Suaeda salsa, and fermentation agent, and control the fermentation temperature at 20-40℃.

[0018] S6: Fermentation time is controlled within 3-7 days to obtain ecological restoration fertilizer.

[0019] As a preferred embodiment of the present invention, the land improvement method includes the following steps:

[0020] S11: Take the aforementioned ecological restoration fertilizer;

[0021] S12: Mix the ecological restoration fertilizer with wet terrestrial soil to obtain a soil-fertilizer mixture;

[0022] S13: Spread the soil-fertilizer mixture evenly on the soil that needs improvement;

[0023] S14: Sow in batches, gradually increasing the sowing density;

[0024] S15: Achieve land improvement.

[0025] As a preferred embodiment of the present invention, the land improvement method requires experimental field cultivation before formal sowing, and the specific steps are as follows:

[0026] S131: Leveling land; leveling land that needs improvement.

[0027] S132: Soil is treated with ecological restoration fertilizers to improve the soil;

[0028] S133: Sowing training, providing sowing training to relevant personnel and standardizing sowing techniques;

[0029] S134: Practical sowing, the workers are arranged in a linear pattern with a spacing of 2m. With their own movement trajectory as the center line, the sowing range within 1m to the left and right of the center line is set as the individual's sowing range. Multiple workers work at the same time to carry out carpet sowing operations.

[0030] S135: Irrigate with seawater after sowing;

[0031] S136: Observe whether it has sprouted after 3-5 days. If it has, proceed to step SA7; otherwise, proceed to step SA2.

[0032] S137: Complete the cultivation of the experimental field and carry out subsequent batch sowing operations.

[0033] As a preferred embodiment of the present invention, the specific process of sowing in batches includes the following steps:

[0034] S141: Take soil that has been treated with a soil-fertilizer mixture;

[0035] S142: Dry the soil;

[0036] S143: Prepare the dried soil into granules;

[0037] S144: Take Suaeda salsa seeds and mix them with granular soil to obtain a mixture. The initial proportion of Suaeda salsa seeds is 5% of the total mass of the mixture.

[0038] S145: Spreading the mixture using an auxiliary seeding device;

[0039] S146: 3-5 days later, increase the proportion of Suaeda salsa seeds in the mixture on the original basis, and repeat the sowing once within the original range;

[0040] S147: Repeat the above steps until the sowing density reaches the set requirements.

[0041] As a preferred embodiment of the present invention, the number of sowing batches is controlled to be four times, and the proportion of Suaeda salsa seeds in the mixture of each sowing batch is 5%, 10%, 15%, and 20%.

[0042] As a preferred embodiment of the present invention, the auxiliary seeding device includes:

[0043] The rake frame has multiple evenly distributed grooving teeth at its bottom, and the grooving teeth have a V-shaped structure.

[0044] Handle assembly, one end of which is mounted on the rake frame.

[0045] As a preferred embodiment of the present invention: a limiting component is detachably mounted on the rake frame, the limiting component comprising:

[0046] The vertical rod is equipped with a sleeve on the rake frame, and the vertical rod is slidably connected to the inner wall of the sleeve;

[0047] The limiting plate is fixed to the bottom of the two vertical rods on both sides of its top, and the position of the limiting plate is adapted to the groove teeth.

[0048] The fixing knob is threaded to the inner wall of the sleeve and is used to fix the vertical rod.

[0049] As a preferred embodiment of the present invention, the auxiliary seeding device further includes:

[0050] The seed storage box and the rake frame have an inverted T-shaped structure. The two ends of the rake frame are fixed with a fixing frame, and the seed storage box can be detachably installed on the fixing frame.

[0051] A strip-shaped bracket has a connecting rod fixed to one outer wall. The grooved teeth have a strip-shaped opening for the connecting rod to slide up and down. The strip-shaped bracket is connected to the outer wall of the limiting plate after the connecting rod passes through the strip-shaped opening.

[0052] Rollers, multiple rollers are rotatably mounted on a strip bracket via a shaft. Multiple seed grooves for holding seeds are opened on the outer circumference of the rollers. The position of the rollers is adapted to the groove teeth. The width of the rollers is greater than the width of the groove teeth.

[0053] The support frame is fixed to the top outer wall of the strip bracket;

[0054] The seeding tubes are installed at equal intervals on the support frame. The bottom of the seeding tubes is equipped with an arc-shaped plate that matches the shape of the rollers. The position of the bottom of the seeding tubes matches the position of the seed groove of the rollers.

[0055] The seed storage box is connected to the top of the seed-laying tube via a flexible connecting tube.

[0056] As a preferred embodiment of the present invention: a soil covering assembly is detachably mounted on one side of the rake frame, the soil covering assembly comprising:

[0057] Mounting frame, both ends of which are detachably mounted on the rake frame;

[0058] Elastic plates, multiple elastic plates are equidistantly installed on one side of the outer wall of the mounting frame;

[0059] The soil-covering pusher plate has one outer wall fixed to an elastic sheet.

[0060] As a preferred embodiment of the present invention, the handle assembly includes:

[0061] The main handle has a connecting arm at one end.

[0062] Handle fixing part, the handle fixing part is fixedly installed on the rake frame;

[0063] The secondary handle is located on the side wall at the end of the main handle. The secondary handle and the main handle form an L-shaped structure. The two main handles and the secondary handle are combined to form a T-shaped structure.

[0064] As a preferred embodiment of the present invention, the handle fixing part includes:

[0065] The slider and the rake frame have a strip groove. The slider is slidably connected in the strip groove, and the end of the connecting arm is fixed to the outer wall of one side of the slider.

[0066] The positioning block has a second convex tooth at its bottom, and the rake frame has a linearly distributed first convex tooth, with the second convex tooth and the first convex tooth being matched.

[0067] The guide rod has its bottom end fixed to the top of the positioning block and is slidably connected to the inner wall of the slider.

[0068] The threaded knob is connected to the inner wall of the slider by a thread, and the bottom end of the threaded knob is rotatably connected to the inside of the positioning block.

[0069] The beneficial effects of this invention are as follows:

[0070] 1. This invention uses harvested Suaeda salsa mother grass as raw material to prepare ecological restoration fertilizer. The resulting fertilizer has sufficient nutrients and high microbial content, making it suitable for soil improvement in coastal mudflats. It can enhance soil fertility, improve soil permeability, and prevent soil compaction. When planting Suaeda salsa, it can promote strong root growth. In addition, harvesting Suaeda salsa mother grass removes the terrestrial stalks, which helps the vegetation continue to grow in the following year, achieving the purpose of recycling and thus realizing good ecological value and economic benefits.

[0071] 2. This invention mixes ecological restoration fertilizer with wet terrestrial soil to obtain a soil-fertilizer mixture. Using this mixture for improvement can effectively prevent the ecological restoration fertilizer from being washed away by seawater, ensuring the improvement effect and improving reliability.

[0072] 3. This invention is based on the morphological characteristics of Suaeda salsa seeds. Since Suaeda salsa seeds are small in size, direct sowing can easily lead to uneven sowing. By preparing dried soil into granules and mixing it with Suaeda salsa seeds before sowing, the uniformity of sowing is ensured, and the soil particles can cover and protect the Suaeda salsa seeds, reducing the probability of the seeds being washed away and improving reliability.

[0073] 4. This invention involves multiple sowings, with the proportion of Suaeda salsa seeds gradually increasing. The tender shoots grown from the initially sown Suaeda salsa seeds can provide some protection for the seeds sown later. This ensures the overall coverage rate and enhances the ability of new seeds to resist seawater during high-density sowing, resulting in high reliability and strong practicality.

[0074] 5. By setting a limiting component, the present invention can adjust the position of the vertical rod according to the needs and fix it with a fixing knob. At this time, the insertion depth of the groove teeth can be limited by the limiting plate, thereby achieving the purpose of adjusting the depth and width of the groove, which is highly practical.

[0075] 6. This invention, by setting up a seed storage box, rollers, and a seed-laying tube, allows the mixture in the seed storage box to be transferred to the seed-laying tube through a flexible connecting pipe. When the furrow is being dug, the rollers roll on the ground, and the position of the seed trough and the seed-laying tube periodically adapt, allowing the mixture to fall into the seed trough. Then, as the seed trough rolls, it falls into the dug furrow, thus achieving the purpose of sowing. This method saves the manual sowing step, saves time and labor, and is highly practical.

[0076] 7. By setting up a soil covering component, the present invention can cover the soil with a soil covering pusher while sowing, which further saves the sowing operation process, saves manpower, and improves practicality.

[0077] 8. By setting a handle fixing part, the present invention can adjust the position of the positioning block by turning the threaded knob as needed, under the guidance of the guide rod, thereby realizing the switching between the second convex tooth and the first convex tooth in the meshing and non-meshing state, realizing locking and unlocking. In the unlocked state, the slider can slide in the strip groove. Through the above method, the two main handles can be used in combination or separately according to actual needs, improving practicality. Attached Figure Description

[0078] Figure 1 This is a schematic diagram of the auxiliary sowing device in a land maintenance method for planting Suaeda salsa in a wetland environment, as proposed in this invention.

[0079] Figure 2 This is a schematic diagram of the disassembled auxiliary sowing device in a land maintenance method for planting Suaeda salsa in a wetland environment, as proposed in Embodiment 2 of the present invention.

[0080] Figure 3 This is a schematic diagram of the auxiliary sowing device in a land maintenance method for planting Suaeda salsa in a wetland environment, as proposed in Embodiment 2 of the present invention.

[0081] Figure 4 This is a schematic diagram of the auxiliary sowing device in the separated state of a land maintenance method for planting Suaeda salsa in a method for restoring wet cultivation, as proposed in Embodiment 2 of the present invention.

[0082] Figure 5 This is a schematic diagram of the structure of the seed storage box of the auxiliary sowing device in a land maintenance method for planting Suaeda salsa in a wetland environment, as proposed in Embodiment 2 of the present invention.

[0083] Figure 6 This is a schematic diagram of the structure of the auxiliary sowing device after disassembly in a land maintenance method for planting Suaeda salsa in a wetland-reclaimed area, as proposed in Embodiment 2 of the present invention.

[0084] Figure 7 This is a schematic diagram of the seeding tube and rollers of the auxiliary sowing device in a land maintenance method for planting Suaeda salsa in a wetland environment, as proposed in Embodiment 2 of the present invention.

[0085] Figure 8 This is a schematic diagram of the furrowing teeth and sleeve of the auxiliary sowing device in a land maintenance method for planting Suaeda salsa in a wetland environment, as proposed in Embodiment 2 of the present invention.

[0086] Figure 9 This is a schematic diagram of the positioning block and slider of the auxiliary sowing device in a land maintenance method for planting Suaeda salsa in a wetland environment, as proposed in Embodiment 2 of the present invention.

[0087] Figure 10 This is a schematic diagram of the structure of multiple auxiliary sowing devices used in a land maintenance method for planting Suaeda salsa in a wetland environment, as proposed in Embodiment 3 of the present invention.

[0088] Figure 11 This is a schematic diagram of the auxiliary sowing device installed on the work vehicle in a land maintenance method for planting Suaeda salsa in a wet-land conversion method proposed in Embodiment 4 of the present invention.

[0089] Figure 12 This is a schematic diagram of the structure of the first connecting component of the auxiliary sowing device in a land maintenance method for planting Suaeda salsa in a wetland environment, as proposed in Embodiment 4 of the present invention.

[0090] Figure 13 This is a schematic diagram of the auxiliary sowing device installed on the work boat in a land maintenance method for planting Suaeda salsa in a wetland environment, as proposed in Embodiment 5 of the present invention.

[0091] Figure 14 This is a schematic diagram of the structure of the second connecting component of the auxiliary sowing device in a land maintenance method for planting Suaeda salsa in a wet-land conversion method proposed in Embodiment 5 of the present invention;

[0092] Figure 15 This is a comparison chart showing the land improvement effect of a land maintenance method for the replanting of Suaeda salsa, which is proposed in this invention.

[0093] Figure 16 This is a comparison diagram of the root-strengthening effect on Suaeda salsa planting in a land maintenance method for Suaeda salsa planting that is suitable for planting in wetland areas, as proposed in this invention.

[0094] Figure 17 This is a comparison chart showing the overall improvement effect of different regions compared to the control group in a land maintenance method for Suaeda salsa cultivation that is applicable to the restoration of wet cultivation.

[0095] Figure 18 This is a comparison chart of the planting effects of multiple batches in a land maintenance method for the cultivation of Suaeda salsa, which is applicable to the restoration of wet cultivation.

[0096] Figure 19 This is a comparative diagram showing the impact of auxiliary sowing devices on sowing operations in a land maintenance method for the cultivation of Suaeda salsa, which is applicable to the restoration of wet-grown Suaeda salsa.

[0097] In the diagram: 1. Rake frame, 2. First convex tooth, 3. Strip chute, 4. Limiting plate, 5. Main handle, 6. Secondary handle, 7. Trenching tooth, 8. Fixing frame, 9. Seed storage box, 10. Roller, 11. Soil covering push plate, 12. Elastic sheet, 13. Mounting frame, 14. Flexible connecting pipe, 15. Fixing knob, 16. Strip bracket, 17. Strip opening, 18. Seed trough, 19. Seed lowering pipe, 20. Support frame, 21. Connecting rod, 22. Vertical rod, 23. Sleeve, 24. Slider, 25. Second convex tooth, 26. Arc plate, 27. Positioning block, 28. Guide rod, 29. Threaded knob, 30. Connecting arm, 31. Connecting frame, 32. Connecting seat, 33. Tracked driving mechanism, 34. Vehicle body, 35. Photovoltaic module, 36. Connecting pin, 37. Hull. Detailed Implementation

[0098] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0099] The embodiments of this patent are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this patent, and should not be construed as limiting this patent.

[0100] Example 1:

[0101] A land maintenance method suitable for the conversion of Suaeda salsa to wet-winged plants, such as... Figure 1-9 As shown, ecological restoration is carried out using ecological restoration fertilizer, which includes:

[0102] 30-60 parts of winged Suaeda salsa powder, 30-60 parts of segmented winged Suaeda salsa grass, and 1-5 parts of fermentation agent;

[0103] The preparation method of the ecological restoration fertilizer includes the following steps:

[0104] S1: Harvest the mother grass of Suaeda salsa on land;

[0105] S2: Divide the obtained Suaeda salsa mother grass into two parts;

[0106] S3: The first part is crushed and passed through an 80-100 mesh sieve to obtain Suaeda salsa powder;

[0107] S4: The second part is cut into segments to obtain segmented winged Suaeda salsa, with the length of the segmented winged Suaeda salsa controlled at 1-3cm;

[0108] S5: Mix and ferment the powder, segments of Suaeda salsa, and fermentation agent, and control the fermentation temperature at 20-40℃.

[0109] S6: Fermentation time is controlled within 3-7 days to obtain ecological restoration fertilizer;

[0110] By using harvested Suaeda salsa mother grass as raw material, ecological restoration fertilizer is prepared. The resulting fertilizer has abundant nutrients and a high content of microorganisms, making it suitable for soil improvement in coastal mudflats. It can enhance soil fertility, improve soil permeability, and prevent soil compaction. When planting Suaeda salsa, it can promote strong root growth. In addition, harvesting Suaeda salsa mother grass removes the terrestrial stalks, which helps the vegetation continue to grow in the following year, achieving the goal of recycling and realizing good ecological value and economic benefits.

[0111] The land improvement method includes the following steps:

[0112] S11: Take the aforementioned ecological restoration fertilizer;

[0113] S12: Mix the ecological restoration fertilizer with wet terrestrial soil to obtain a soil-fertilizer mixture;

[0114] S13: Spread the soil-fertilizer mixture evenly on the soil that needs improvement;

[0115] S14: Sow in batches, gradually increasing the sowing density;

[0116] S15: Achieve land improvement;

[0117] By using the above method, the ecological restoration fertilizer is mixed with wet terrestrial soil to obtain a soil-fertilizer mixture. Using this mixture for soil improvement can effectively prevent the ecological restoration fertilizer from being washed away by seawater, ensuring the improvement effect and improving reliability.

[0118] The land improvement method requires experimental field cultivation before formal sowing, and the specific steps are as follows:

[0119] S131: Leveling land; leveling land that needs improvement.

[0120] S132: Soil is treated with ecological restoration fertilizers to improve the soil;

[0121] S133: Sowing training, providing sowing training to relevant personnel and standardizing sowing techniques;

[0122] S134: Practical sowing, the workers are arranged in a linear pattern with a spacing of 2m. With their own movement trajectory as the center line, the sowing range within 1m to the left and right of the center line is set as the individual's sowing range. Multiple workers work at the same time to carry out carpet sowing operations.

[0123] S135: Irrigate with seawater after sowing;

[0124] S136: Observe whether it has sprouted after 3-5 days. If it has, proceed to step SA7; otherwise, proceed to step SA2.

[0125] S137: Complete the cultivation of the experimental field and carry out subsequent batch sowing operations;

[0126] The above methods achieve the following objectives: first, the experimental field can improve the standardization and proficiency of the sowing workers, ensuring the quality of subsequent sowing; second, through observation, it can be ensured that the improved land is suitable for the survival of Suaeda salsa; and third, the Suaeda salsa that germinates in the experimental field acts as a mother plant, protecting the subsequent Suaeda salsa seeds.

[0127] The specific process for sowing in batches in step S14 includes the following steps:

[0128] S141: Take soil that has been treated with a soil-fertilizer mixture;

[0129] S142: Dry the soil;

[0130] S143: Prepare the dried soil into granules;

[0131] S144: Take Suaeda salsa seeds and mix them with granular soil to obtain a mixture. The initial proportion of Suaeda salsa seeds is 5% of the total mass of the mixture.

[0132] S145: Spreading the mixture using an auxiliary seeding device;

[0133] S146: 3-5 days later, increase the proportion of Suaeda salsa seeds in the mixture on the original basis, and repeat the sowing once within the original range;

[0134] S147: Repeat the above steps until the seeding density reaches the set requirement;

[0135] The number of sowings is controlled at four times, and the proportion of Suaeda salsa seeds in the mixture for each sowing is 5%, 10%, 15%, and 20%.

[0136] Considering the morphological characteristics of Suaeda salsa seeds, since the seeds are small in size, direct sowing can easily lead to uneven sowing. By preparing dried soil into granules and mixing it with Suaeda salsa seeds before sowing, not only is the uniformity of sowing ensured, but the soil particles can also cover and protect the seeds, reducing the probability of the seeds being washed away and improving reliability.

[0137] Through multiple sowings, with the proportion of Suaeda salsa seeds gradually increasing, the tender shoots grown from the initially sown Suaeda salsa seeds can provide some protection for the seeds sown later. This ensures the overall coverage rate and enhances the ability of new seeds to resist seawater during high-density sowing, resulting in high reliability and strong practicality.

[0138] To facilitate trenching operations; such as Figure 1 As shown, the auxiliary seeding device includes:

[0139] The rake frame 1 has multiple evenly distributed grooving teeth 7 at its bottom, and the grooving teeth 7 have a V-shaped structure.

[0140] Handle assembly, one end of which is mounted on the rake frame 1.

[0141] To facilitate adjustment of the depth and width of the trench; such as Figure 1-9 As shown, a limiting component is detachably mounted on the rake frame 1, the limiting component comprising:

[0142] The vertical rod 22 and the rake frame 1 are integrally provided with a sleeve 23, and the vertical rod 22 is slidably connected to the inner wall of the sleeve 23;

[0143] The limiting plate 4 is fixed to the bottom of the two vertical rods 22 on both sides of its top. The position of the limiting plate 4 is adapted to the grooved teeth 7.

[0144] A fixing knob 15 is threaded to the inner wall of the sleeve 23 and is used to fix the vertical rod 22.

[0145] By setting a limiting component, the position of the vertical rod 22 can be adjusted according to the needs and fixed by the fixing knob 15. At this time, the insertion depth of the groove tooth 7 can be limited by the limiting plate 4, thereby achieving the purpose of adjusting the depth and width of the groove, which is highly practical.

[0146] During the sowing and cultivation of Suaeda salsa, after sowing and covering with soil, rotary tillage is carried out, and the limiting components are adjusted to make the tillage depth 1-15cm.

[0147] Example 2:

[0148] A land maintenance method suitable for the conversion of Suaeda salsa to wet-winged plants, such as... Figure 1-9 As shown, in order to better perform sowing, this embodiment makes the following improvements based on embodiment 1: the auxiliary sowing device further includes:

[0149] The seed storage box 9 and the rake frame 1 are in an inverted T-shaped structure. The two ends of the vertical surface of the rake frame 1 are fixed with a fixing frame 8. The seed storage box 9 is detachably installed on the fixing frame 8.

[0150] A strip bracket 16 is provided with a connecting rod 21 fixed on one side of its outer wall. A strip-shaped opening 17 is provided on the grooved teeth 7 for the connecting rod 21 to slide up and down. The strip bracket 16 is connected to the outer wall of the limiting plate 4 after the connecting rod 21 passes through the strip-shaped opening 17.

[0151] Rollers 10, multiple rollers 10 are rotatably mounted on a strip bracket 16 via a shaft. Multiple seed grooves 18 for holding seeds are opened on the outer circumference of the rollers 10. The position of the rollers 10 is adapted to the groove teeth 7. The width of the rollers 10 is greater than the width of the groove teeth 7, so that the rollers 10 can contact the ground to roll and avoid the rollers 10 being suspended in the air.

[0152] Support frame 20, the support frame 20 is fixed to the top outer wall of the strip bracket 16;

[0153] The seeding tube 19 is installed equidistantly on the support frame 20. The bottom of the seeding tube 19 is integrally provided with an arc plate 26 that matches the shape of the roller 10. The position of the bottom end of the seeding tube 19 matches the position of the seed groove 18 of the roller 10.

[0154] Flexible connecting pipe 14, the seed storage box 9 is connected to the top of the seed delivery pipe 19 through the flexible connecting pipe 14;

[0155] By setting up structures such as seed storage box 9, rollers 10, and seeding tube 19, the mixture in the seed storage box 9 can be transferred to the seeding tube 19 through the flexible connecting tube 14. When the furrow is opened, the rollers 10 roll on the ground, and the position of the seed trough 18 and the seeding tube 19 are periodically matched, so that the mixture can fall into the seed trough 18, and then fall into the furrow opened when the seed trough 18 rolls, thereby achieving the purpose of sowing. This method saves the manual sowing process, saves time and labor, and is highly practical.

[0156] To facilitate covering with soil; such as Figure 6 As shown, a soil covering assembly is detachably installed on one side of the rake frame 1, and the soil covering assembly includes:

[0157] Mounting bracket 13, both ends of which are detachably mounted on rake frame 1;

[0158] Elastic sheet 12, multiple elastic sheets 12 are equidistantly installed on one side of the outer wall of the mounting frame 13;

[0159] Soil-covering pusher plate 11, with one outer wall of the soil-covering pusher plate 11 fixed to the elastic sheet 12;

[0160] By setting up a soil covering component, soil can be covered simultaneously with furrow sowing using the soil covering pusher 11, further saving on sowing operations, reducing manpower, and improving practicality.

[0161] For ease of use; such as Figure 1 , Figure 9 As shown, the handle assembly includes:

[0162] Main handle 5, with a connecting arm 30 integrally provided at one end of the main handle 5;

[0163] Handle fixing part, the handle fixing part is fixedly installed on the rake frame 1;

[0164] The secondary handle 6 is integrally set on the end side wall of the main handle 5. The secondary handle 6 and the main handle 5 form an L-shaped structure. The two main handles 5 and the secondary handle 6 are combined to form a T-shaped structure.

[0165] For ease of use; such as Figure 4 , Figure 9 As shown, the handle fixing part includes:

[0166] The slider 24 is slidably connected to the strip groove 3 on the rake frame 1, and the end of the connecting arm 30 is fixed to the outer wall of one side of the slider 24.

[0167] The positioning block 27 has a second protruding tooth 25 integrally provided at its bottom, and the rake frame 1 has a linearly distributed first protruding tooth 2 integrally provided, with the second protruding tooth 25 and the first protruding tooth 2 being compatible.

[0168] Guide rod 28, the bottom end of guide rod 28 is fixed to the top of positioning block 27, and guide rod 28 is slidably connected to the inner wall of slider 24;

[0169] The threaded knob 29 is threadedly connected to the inner wall of the slider 24, and the bottom end of the threaded knob 29 is rotatably connected to the inside of the positioning block 27.

[0170] Example 3:

[0171] A land maintenance method suitable for the conversion of Suaeda salsa to wet-winged plants, such as... Figure 10 As shown, the auxiliary sowing device is also used with a connecting frame 31. The structure of the connecting frame 31 is adapted to the rake frame 1. The connecting frame 31 and the rake frame 1 are provided with assembly holes of the same specifications. Each rake frame 1 is spliced ​​and connected by the connecting frame 31 and fixing bolts.

[0172] By setting up structures such as the connecting frame 31, multiple rake frames 1 can be combined for use, facilitating simultaneous operation by multiple people, ensuring work efficiency, and improving practicality.

[0173] Example 4:

[0174] A land maintenance method suitable for the conversion of Suaeda salsa to wet-winged plants, such as... Figure 11 , Figure 12 As shown, the auxiliary seeding device is also used in conjunction with a work vehicle, which includes a vehicle body 34. The bottom of the vehicle body 34 is provided with a tracked driving mechanism 33 for movement. The auxiliary seeding device is detachably mounted on the vehicle body 34 through a first connecting component. A photovoltaic module 35 is also mounted on the vehicle body 34.

[0175] By setting up a work vehicle, auxiliary seeding devices can be installed on the work vehicle for operation, further saving manpower.

[0176] Example 5:

[0177] A land maintenance method suitable for the conversion of Suaeda salsa to wet-winged plants, such as... Figure 13 , Figure 14 As shown, the auxiliary seeding device is also used in conjunction with a work boat, which includes a hull 37. The auxiliary seeding device is detachably mounted on the vehicle body 34 via a second connecting assembly. The second connecting assembly has the same structure as the first connecting assembly, and both the second connecting assembly and the first connecting assembly include:

[0178] The connecting seat 32 is fixed to the rear of the vehicle body 34 or the ship body 37 by bolts, and the auxiliary handle 6 is detachably snapped into the connecting seat 32.

[0179] Connecting pin 36, auxiliary handle 6 and connecting seat 32 are provided with matching pin holes, and connecting pin 36 is inserted into the pin hole.

[0180] Experiment 1:

[0181] To verify the soil improvement effect of the ecological restoration fertilizer, the addition ratio of Suaeda salsa powder and Suaeda salsa segments was adjusted, and the ecological restoration fertilizer was prepared according to the adjusted formula. Five experimental areas were planned, namely Area A, Area B, Area C, Area D, and Area E. The prepared ecological restoration fertilizer was used for soil improvement, and the improvement results were evaluated. The following conclusions were obtained:

[0182]

[0183] As can be seen from the above, when the ratio of Suaeda salsa powder to Suaeda salsa segments in the ecological restoration fertilizer is 1:1, the overall effect on soil improvement is the best.

[0184] Experiment 2:

[0185] To verify the growth status of Suaeda salsa in soil improved by ecological restoration fertilizer, six groups were divided into six groups. Five groups served as experimental groups, planted in five different soil locations as described in Experiment 1. One group served as the control group, planted in untreated soil. After a certain period, the results were evaluated to observe the improvement of the experimental groups compared to the control group, and the following conclusions were drawn:

[0186] Experimental planting area Area A Area B Area C Region D Area E Root-strengthening effect (compared to the control group) 83.6 84.8 87.5 86.9 84.1 Improved growth (compared to the control group) 81.5 82.3 84.6 82.3 80.4 Improved thermal insulation (compared to the control group) 69.2 77.4 79.3 78.1 74.3

[0187] As can be seen from the above, soil improved by ecological restoration fertilizer is more suitable for planting. The improvement of soil by ecological restoration fertilizer can strengthen the roots of Suaeda salsa planted later. In addition, when the ratio of Suaeda salsa powder to segmented Suaeda salsa grass in the ecological restoration fertilizer is 1:1, the roots of Suaeda salsa are more stable and the growth is better.

[0188] Experiment 3:

[0189] To verify the effect of multiple sowings on Suaeda salsa cultivation, the same region was selected and divided into multiple sub-regions, each with a different sowing plan, as detailed below:

[0190] Sub-region 1: The number of sowing times is controlled at three times, and the proportion of Suaeda salsa seeds in the mixture of each sowing is gradually increased within the range of 5-30%.

[0191] Sub-region 2: The number of sowing times is controlled at four times, and the proportion of Suaeda salsa seeds in the mixture of each sowing is gradually increased within the range of 5-20%.

[0192] Sub-region 3: The number of sowing times is controlled at five times, and the proportion of Suaeda salsa seeds in the mixture of each sowing is gradually increased within the range of 5-15%.

[0193] An evaluation of the sowing and cultivation results yielded the following conclusions:

[0194] Planting area Subregion 1 Subregion 2 Subregion 3 Survivability 84.3 89.8 90.1 Seawater impact resistance 81.5 88.4 88.6

[0195] As can be seen from the above, sub-region 3 has better survival ability and resistance to seawater impact, while sub-region 2 has roughly the same survival ability and resistance to seawater impact as sub-region 3. In order to ensure efficiency, the scheme of sub-region 2 can be preferred.

[0196] Experiment 4:

[0197] To verify the impact of the auxiliary seeding device on the seeding operation, seeding was carried out using both traditional seeding methods and seeding using the auxiliary seeding device. The seeding process and results were evaluated, and the following conclusions were drawn:

[0198] traditional methods Seeding with auxiliary seeding device Seeding efficiency 54.7 88.9 Seeding uniformity 68.3 87.4 Seed cultivation status 67.5 90.3

[0199] As can be seen from the above, using an auxiliary sowing device results in higher sowing efficiency, better sowing uniformity, and better post-sowing cultivation conditions.

[0200] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A land maintenance method suitable for the cultivation of Suaeda salsa after the initial cultivation period, characterized in that, Ecological restoration is achieved through the use of ecological restoration fertilizers, which include: 30-60 parts of winged Suaeda salsa powder, 30-60 parts of segmented winged Suaeda salsa grass, and 1-5 parts of fermentation agent; The preparation method of the ecological restoration fertilizer includes the following steps: S1: Harvest the mother grass of Suaeda salsa on land; S2: Divide the obtained Suaeda salsa mother grass into two parts; S3: The first part is crushed and passed through an 80-100 mesh sieve to obtain Suaeda salsa powder; S4: The second part is cut into segments to obtain segmented winged Suaeda salsa, with the length of the segmented winged Suaeda salsa controlled at 1-3cm; S5: Mix and ferment the powder, segments of Suaeda salsa, and fermentation agent, and control the fermentation temperature at 20-40℃. S6: Fermentation time is controlled within 3-7 days to obtain ecological restoration fertilizer; Land improvement methods include the following steps: S11: Take the aforementioned ecological restoration fertilizer; S12: Mix the ecological restoration fertilizer with wet terrestrial soil to obtain a soil-fertilizer mixture; S13: Spread the soil-fertilizer mixture evenly on the soil that needs improvement; S14: Sowing is carried out in batches, gradually increasing the sowing density; the specific process of sowing in batches includes the following steps: S141: Take soil that has been treated with a soil-fertilizer mixture; S142: Dry the soil; S143: Prepare the dried soil into granules; S144: Take Suaeda salsa seeds and mix them with granular soil to obtain a mixture. The initial proportion of Suaeda salsa seeds is 5% of the total mass of the mixture. S145: Spreading the mixture using an auxiliary seeding device; S146: 3-5 days later, increase the proportion of Suaeda salsa seeds in the mixture on the original basis, and repeat the sowing once within the original range; S147: Repeat the above steps until the seeding density reaches the set requirement; S15: Achieve land improvement.

2. The land maintenance method for Suaeda salsa cultivation according to claim 1, characterized in that, The sowing process is carried out in batches, with the number of sowing times controlled at four. In each sowing mixture, the proportion of Suaeda salsa seeds is 5%, 10%, 15%, and 20%.

3. The land maintenance method for Suaeda salsa planting according to claim 1, characterized in that, The auxiliary seeding device includes: The rake frame (1) has multiple evenly distributed grooving teeth (7) at its bottom, and the grooving teeth (7) have a V-shaped structure. Handle assembly, one end of which is mounted on the rake frame (1); A limiting component is detachably mounted on the rake frame (1), the limiting component comprising: A vertical rod (22) is provided on the rake frame (1), and a sleeve (23) is provided on the rake frame (1). The vertical rod (22) is slidably connected to the inner wall of the sleeve (23). Limiting plate (4), the top two sides of the limiting plate (4) are respectively fixed to the bottom ends of two vertical rods (22), and the position of the limiting plate (4) is adapted to the groove teeth (7); Fixing knob (15) is connected to the inner wall of sleeve (23) by thread. Fixing knob (15) is used to fix vertical rod (22).

4. A land maintenance method for Suaeda salsa cultivation according to claim 3, characterized in that, The auxiliary seeding device also includes: The seed storage box (9) and the rake frame (1) are inverted T-shaped structures. The rake frame (1) is fixed with a fixed frame (8) at both ends of its vertical surface. The seed storage box (9) can be detachably installed on the fixed frame (8). A strip bracket (16) is fixed to a connecting rod (21) on one side of the outer wall. A strip-shaped opening (17) is provided on the grooved teeth (7) for the connecting rod (21) to slide up and down. The strip bracket (16) is connected to the outer wall of the limiting plate (4) after the connecting rod (21) passes through the strip-shaped opening (17). Roller (10), multiple rollers (10) are rotatably mounted on a strip bracket (16) via a shaft. Multiple seed grooves (18) for holding seeds are opened on the outer circumference of the roller (10). The position of the roller (10) is adapted to the groove teeth (7). The width of the roller (10) is greater than the width of the groove teeth (7). Support frame (20), the support frame (20) is fixed to the top outer wall of the strip bracket (16); The seeding tube (19) is installed at equal intervals on the support frame (20). The bottom of the seeding tube (19) is provided with an arc plate (26) that matches the shape of the roller (10). The position of the bottom end of the seeding tube (19) matches the position of the seed groove (18) of the roller (10). The flexible connecting tube (14) connects the seed storage box (9) to the top of the seeding tube (19).

5. A land maintenance method for Suaeda salsa cultivation according to claim 4, characterized in that, A soil covering assembly is detachably installed on one side of the rake frame (1), the soil covering assembly comprising: Mounting frame (13), both ends of which are detachably mounted on the rake frame (1); Elastic pieces (12), multiple elastic pieces (12) are equidistantly installed on one side of the outer wall of the mounting frame (13); The soil covering push plate (11) is fixed on one side of the outer wall of the soil covering push plate (11) to the elastic sheet (12).

6. A land maintenance method for Suaeda salsa cultivation according to claim 5, characterized in that, The handle assembly includes: The main handle (5) has a connecting arm (30) at one end; Handle fixing part, the handle fixing part is fixedly installed on the rake frame (1); The secondary handle (6) is located on the end side wall of the main handle (5). The secondary handle (6) and the main handle (5) form an L-shaped structure. The two main handles (5) and the secondary handle (6) are combined to form a T-shaped structure.

7. A land maintenance method for Suaeda salsa cultivation according to claim 6, characterized in that, The handle fixing part includes: The slider (24) and the rake frame (1) are provided with a strip groove (3). The slider (24) is slidably connected in the strip groove (3). The end of the connecting arm (30) is fixed to the outer wall of one side of the slider (24). The positioning block (27) has a second protruding tooth (25) at its bottom, and the rake frame (1) has a linearly distributed first protruding tooth (2), with the second protruding tooth (25) and the first protruding tooth (2) being compatible. Guide rod (28), the bottom end of guide rod (28) is fixed to the top of positioning block (27), and guide rod (28) is slidably connected to the inner wall of slider (24); The threaded knob (29) is connected to the inner wall of the slider (24) by a thread, and the bottom end of the threaded knob (29) is rotatably connected to the inside of the positioning block (27).

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