A device for bagging and planting of ox-tail amaranth and a method for surface planting of ox-tail amaranth

Abstract

The present application relates to a kind of bagging planting device of ox-tail chard, it includes ecological bag, base, water-saving irrigation mechanism and shade climbing frame mechanism, ecological bag is filled with mixed organic matter nutrient soil, base is equipped with containing groove, the groove bottom wall of containing groove is arranged in the shape of slope with one end high and the other end low, the bag mouth of ecological bag is located at the higher end of groove bottom wall, the bag wall of bag tail section of ecological bag is equipped with the ox-tail chard excavation mouth that can be opened and closed, a plurality of guide grooves are set in the groove bottom wall of containing groove, water-saving irrigation mechanism is set at the higher end of groove bottom wall corresponding to containing groove, shade climbing frame mechanism includes the shed frame of being covered in the upper of ecological bag by multiple climbing poles.Optimal characteristics are that the present application plants ox-tail chard in the ecological bag equipped with nutrient soil, ox-tail chard grows horizontally on ground, is not influenced by actual soil characteristics of planting site, is not limited by whether planting site is suitable for cultivation and harvesting, saves cultivated land;Reasonable structure, good drainage and can be directly drip irrigation in bag wall bottom, strong ability of resisting waterlogging and drought.

Description

Technical Field

[0001] This invention relates to the field of sweet potato cultivation, specifically to a sweet potato bagging and planting device and a method for shallow planting sweet potatoes. Background Technology

[0002] Wild yam (Dioscorea opposita) possesses a wider variety of nutrients than cultivated yams, being rich in starch, protein, vitamins, and minerals. It is both a delicious and uniquely flavorful food and a commonly used traditional Chinese medicine for nourishing the stomach and spleen, combining both medicinal and edible value. Unlike yams, which are widely cultivated, wild yam is less commonly grown. However, it is highly adaptable and can be planted in various regions and climates, making it relatively suitable for cultivation. Wild yam has specific soil requirements; for better quality and a more satisfactory yield, fertile, well-drained, loose sandy loam soil is ideal. Saline-alkali land, desert soil, or barren loess soil are generally unsuitable for growing wild yam. Furthermore, thin-soiled or uneven slopes and hilltops are also difficult to cultivate in non-cultivated areas.

[0003] Furthermore, yams are typically grown vertically, meaning the tubers grow straight down without bending. Harvesting vertically planted yams requires removing the soil from the front and sides of the tuber until the very tip is visible at the bottom of the trench. Then, the fibrous roots on the back and sides of the tuber are removed from bottom to top, allowing for the harvesting of a complete yam. Clearly, vertical planting requires a thick, loose soil layer and is more difficult to harvest, limiting planting areas and increasing costs. Therefore, in recent years, some areas have experimented with digging shallow trenches on large areas of land, laying a thin film (plastic strips cut from burlap sacks) inside to restrict the vertical growth of the yams, placing the yam seed tuber at one end of the film, and then covering it with soil. This allows the yam to grow horizontally along the film in the shallow soil layer, making harvesting easier. Therefore, surface planting of yams could be considered for yam cultivation. However, this planting method is only suitable for field planting in relatively fertile areas, and is not suitable for barren land such as saline-alkali land and desert soil, let alone non-cultivated areas such as hillsides and mountain tops. Summary of the Invention

[0004] This invention provides a bagging planting device and a shallow planting method for sweet potatoes, aiming to overcome the shortcomings of existing technologies, so that sweet potato planting is not limited by soil quality or whether the area is suitable for cultivation. At the same time, it ensures that the sowing, growth management and harvesting of sweet potatoes are more convenient and efficient, thereby expanding the sweet potato planting area, saving land and increasing farmers' income.

[0005] The technical solution of this invention to solve the above-mentioned technical problems is as follows: A bagging and planting device for sweet potato, comprising an ecological bag, a base, a water-saving irrigation mechanism, and a shading and climbing frame mechanism. The ecological bag is filled with mixed organic nutrient soil. The base is provided with a holding trough for placing the ecological bag. The bottom wall of the holding trough is sloping, with one end higher than the other. The opening of the ecological bag is located at the higher end of the bottom wall of the trough. The tail section of the ecological bag has an openable and closable sweet potato harvesting port. The bottom wall of the holding trough has several guide grooves extending from one end to the other. The container is provided with a drain outlet at the lower end of the bottom wall of the container, and the water-saving irrigation mechanism is provided at the higher end of the bottom wall of the container. The water-saving irrigation mechanism includes a sprinkler pipe, a drip irrigation pipe and a water inlet connector pipe connected by a three-way valve. The water outlet end of the sprinkler pipe is connected to a nozzle that sprays water toward the ecological bag. One end of the drip irrigation pipe is closed and the pipe wall has drip holes that correspond one-to-one with the guide groove. The shading climbing frame mechanism includes a canopy composed of multiple climbing poles that cover the ecological bag. The lower end of the climbing poles is fixed to the periphery of the base.

[0006] Based on the above technical solution, the present invention can be further improved as follows.

[0007] Furthermore, the mixed organic nutrient soil is composed of the following raw materials in parts by weight: 20-30 parts humus, 40-50 parts ordinary soil, 4-6 parts bone meal, 3-5 parts wood ash, and 8-10 parts straw powder. The advantages are that the humus is rich in well-rotted organic nutrients that are easily absorbed by plants, ensuring rapid nutrient absorption and growth of the sweet potato plants during the first planting; the bone meal is rich in phosphorus, which is released slowly and continuously, ensuring a continuous and sufficient supply of phosphorus in the nutrient soil within the eco-bags for the next three years or longer; and the straw powder also slowly degrades and releases organic matter, ensuring a relatively good basic fertility in the nutrient soil within the eco-bags.

[0008] Furthermore, the common soil types are garden soil or sandy loam. Garden soil is rich in nutrients, while sandy loam, although relatively low in nutrients, has good aeration and water permeability, making it suitable for the growth of sweet potatoes. Moreover, both types of soil are relatively common and easy to collect.

[0009] Furthermore, the base is made of weather-resistant plastic groove or precast concrete groove, and the guide groove is filled with fine sand or water-permeable fiber cloth.

[0010] Furthermore, the cross-section of the holding trough opened on the base is arc-shaped, the angle between the sloping bottom wall of the holding trough and the horizontal plane is 3-8 degrees, the holding trough is open at one end of the slope to form the drain outlet, and the holding trough is provided with a blocking strip along the horizontal direction inside the open end of the slope.

[0011] Furthermore, the base is provided with a liquid collection tank at one end of the slope of the holding tank. The bottom of the liquid collection tank is connected to each of the guide channels. The drip irrigation pipe extends horizontally into the liquid collection tank and each of the drip holes drips water into each of the guide channels in a corresponding manner.

[0012] Furthermore, the drip irrigation pipe, sprinkler irrigation pipe, and water inlet connector pipe are all plastic pipes and are fixedly connected to the base through preset fixing holes and / or pre-embedded fixing parts.

[0013] Furthermore, the base has multiple fixed sleeves at its four corners, and each fixed sleeve has a vertically arranged climbing rod fixed inside. The top of the four climbing rods consists of multiple interconnected horizontal and diagonally arranged climbing rods forming the roof of the canopy.

[0014] Furthermore, the ecological bag is a cylindrical bag with a total length of 150-220cm and a diameter of 25-30cm. A zipper is provided on the upper wall of the bag at the tail end to form a 40-80cm long digging opening for the sweet potato.

[0015] This invention also provides a method for shallow planting of sweet potatoes, which involves planting sweet potatoes on the ground using the aforementioned herb-bag planting device, and includes the following steps:

[0016] S1. Sowing: First, place the base evenly spaced on open areas with sufficient sunlight, such as mountain tops, gentle slopes, or wastelands. Then, fill the prepared ecological bags with mixed organic nutrient soil. After filling, place the ecological bags upside down in the holding trough of the base, with the open end of the ecological bag facing the higher end of the holding trough. In March or April, after sprouting the sweet potato seed tubers, insert them into the mixed organic nutrient soil at the open end of the ecological bag, or insert the sweet potato seed tubers first and then water them to sprout, thus completing the sowing.

[0017] S2. Growth Management: When the sweet potato vines grow to 30cm, begin to install and erect a shade trellis. Use flexible ropes or strips of cloth to tie the sweet potato vines to the nearby climbing poles to guide them to climb the shade trellis. If there is a risk of drought during April to August, start the water-saving irrigation system for drip irrigation. If drought has already occurred, start the water-saving irrigation system for sprinkler irrigation in the evening. During July to September, apply liquid fertilizer once through the drip irrigation pipes of the water-saving irrigation system to promote the rapid growth and expansion of the sweet potato tubers.

[0018] S3. Harvesting: The sweet potato harvesting is carried out from late October to February of the following year. When harvesting, first reach into the opening of the ecological bag, grab the sweet potato, and cut it off 15-25cm from the head end. Bury the cut-off head end in a mixture of organic matter and nutrient soil as seed for the next round of germination and growth. Then, open the sweet potato harvesting port from the other end of the ecological bag, reach in, grab the sweet potato, and gently pull it out to complete the harvesting.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1) This invention plants sweet potatoes in ecological bags filled with nutrient soil. The sweet potatoes grow horizontally on the ground, unaffected by the actual soil characteristics of the planting site or whether the planting site is suitable for cultivation and harvesting. The planting device of this invention can be used for small-scale or large-scale planting on mountain tops, gentle slopes, courtyards, saline-alkali land and desert soil. Harvesting does not require manual labor or large machinery to dig the soil. The grown sweet potato tubers are shallowly buried in the relatively loose nutrient soil in the ecological bag, and can be dug up by hand, which is convenient and efficient.

[0021] 2) Unlike conventional yam bagging planting devices that place the bags directly above the ground, this invention includes a base, a water-saving irrigation mechanism, and a shading climbing frame mechanism in addition to the ecological bags. The base has a holding trough for placing the ecological bags, with the bottom of the trough slightly inclined so that the opening of the ecological bag is higher than the other end. On the one hand, because the seed potatoes are placed at the higher opening of the bag during planting, the yam tubers will spontaneously grow along the slope towards the tail of the ecological bag under the influence of gravity during later growth. On the other hand, because yam is drought-tolerant but susceptible to waterlogging, the inclined bottom of the holding trough and the guide groove at the bottom of the trough can drain water quickly during periods of heavy rainfall, ensuring that water does not accumulate inside the ecological bags. The yam tubers inside the bags are basically not soaked in water, resulting in better quality. In addition, the guide groove also facilitates the implementation of water-saving drip irrigation.

[0022] 3) In particular, after the base is set, the ecological bag is isolated from the ground. Even if the land below is a plot with high salt content, high heavy metal content or other non-volatile harmful substances, since the ecological bag does not directly contact the ground surface, surface water and harmful substances will not enter the ecological bag. Therefore, the device of this invention can be used to grow high-quality and harmless sweet potato products in some polluted plots.

[0023] 4) In summer, when the sun is too strong and there is no rain for a long time, the shading trellis structure, with its roof covered with sweet potato vines, can provide shade for the ecological bags below. This can prevent the ecological bags from being scorched by the sun and causing the moisture inside to evaporate too quickly. At the same time, the drip irrigation function of the water-saving irrigation system can be activated. The drip irrigation pipe continuously drips water from the top of the guide channel. The water slowly moves down in the fine sand of the guide channel and gradually evaporates into water vapor. The water vapor will enter the nutrient soil in the ecological bag, thus maintaining a certain level of moisture in the nutrient soil inside the ecological bag. This ensures that the growth of sweet potato is not affected by drought, ensuring high yield. At the same time, it greatly saves irrigation water and avoids the problem of sweet potato tubers coming into contact with a lot of water and affecting quality when frequently flooded.

[0024] 5) The mixed organic nutrient soil used in this invention contains humus rich in organic matter, bone meal rich in phosphorus with good slow-release effect, wood ash rich in potassium, and straw powder that slowly degrades and releases organic matter. It can provide sufficient supply for the growth of sweet potatoes. Once the ecological bag is filled with nutrient soil, it can be used for at least three years without replacement. After each harvest of sweet potatoes, the tip of the sweet potato left at the bag opening will automatically sprout and grow the following year. There is no need to fill and replace the nutrient soil and sow seeds every year. It also avoids the operation of tilling the land required by traditional methods, which is convenient and saves time. Attached Figure Description

[0025] Figure 1 A schematic diagram of a bagged planting device for sweet potato provided by the present invention (without the shading and climbing mechanism);

[0026] Figure 2 for Figure 1 The top view of the base of the sweet potato bagging planting device shown (no ecological bags are placed in the holding tank);

[0027] Figure 3 for Figure 2 Sectional view of the base along AA;

[0028] Figure 4 for Figure 3 The diagram shows a cross-section of the base after fine sand has been added to the guide groove and an eco-bag containing mixed organic nutrient soil has been placed in the holding tank.

[0029] Figure 5 for Figure 1 The front view of the sweet potato bagging planting device shown is after the shading and climbing mechanism has been installed (the arrow indicates the sunlight shining on the trellis).

[0030] Figure 6 Images of sweet potato products grown using the apparatus and method provided by this invention (a is a photo measuring the length of the sweet potato products growing in the ecological bag, and b is a photo comparing the thickness of the harvested sweet potato products with the size of an adult's palm).

[0031] The attached diagram lists the components represented by each number as follows:

[0032] 1. Ecological bag; 2. Base; 3. Mixed organic nutrient soil; 4. Container trough; 5. Sweet potato harvesting port; 6. Guide channel; 7. Three-way valve; 8. Sprinkler irrigation pipe; 9. Drip irrigation pipe; 10. Water inlet connector pipe; 11. Climbing pole; 12. Fine sand; 13. Liquid collection tank; 14. Baffle plate; 15. Fixing sleeve. Detailed Implementation

[0033] The principles and features of the present invention are described below with reference to the accompanying drawings and specific embodiments. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0034] In the description of this invention, if terms such as "upper," "lower," "left," "right," "top," "bottom," "inner," and "outer" are used to indicate the orientation or positional relationship, the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0035] like Figures 1 to 5 As shown, this invention provides a bagging and planting device for sweet potato, comprising an ecological bag 1, a base 2, a water-saving irrigation mechanism, and a shading and climbing frame mechanism. The ecological bag 1 is filled with mixed organic nutrient soil 3. The base 2 is provided with a holding trough 4 for placing the ecological bag 1. The bottom wall of the holding trough 4 is sloping, with one end higher than the other. The opening of the ecological bag 1 is located at the higher end of the bottom wall of the trough. The tail section of the ecological bag 1 has an openable and closable sweet potato harvesting port 5. The bottom wall of the holding trough 4 has several guide grooves 6 extending from one end to the other. A drain outlet is provided at the lower end of the bottom wall of the trough, and a water-saving irrigation mechanism is provided at the higher end of the bottom wall of the holding trough 4. The water-saving irrigation mechanism includes a sprinkler pipe 8, a drip irrigation pipe 9, and a water inlet connector pipe 10 connected by a three-way valve 7. The outlet end of the sprinkler pipe 8 is connected to a nozzle that sprays water toward the ecological bag 1. One end of the drip irrigation pipe 9 is closed, and drip holes corresponding to the guide channel 6 are opened on the pipe wall. The shading climbing frame mechanism includes a canopy composed of multiple climbing poles 11 covering the ecological bag 1. The lower ends of the climbing poles 11 are fixed to the periphery of the base 2. The base 2 is a weather-resistant plastic trough or a precast concrete trough, and the guide channel 6 is filled with fine sand 12 or permeable fiber cloth.

[0036] It should be noted that the base effectively overcomes the problem of poor drainage and water accumulation caused by placing ecological bags directly on the ground in uneven terrain, especially during periods of heavy rain. Furthermore, if the ecological bags are placed unevenly, the sweet potatoes are more prone to irregular and twisted growth, affecting their quality. The guide channel can be single or multiple; when there is only one, it should be placed at the lowest point of the container. Ideally, the guide channel should be filled with fine sand or a highly permeable fiber cloth. This allows the ecological bags filled with nutrient soil to lie flat in the container, with the sidewalls of the bags resting on the fine sand or permeable fiber cloth. Since the water absorption and permeability of fine sand or permeable fiber cloth are superior to mixed organic nutrient soil, excess water can drain away relatively quickly from the guide channel during rain or irrigation, preventing waterlogging damage to the sweet potato roots.

[0037] Understandably, the base does not necessarily have to be a weather-resistant plastic trough or a precast concrete trough. When conditions permit, a base structure made of adobe can be formed by ridges being dug on the ground and then grooves being dug. In this case, to ensure the water-guiding function of the guide trough, a plastic film can be laid in the guide trough first and then filled with fine sand.

[0038] In one embodiment of the present invention, the mixed organic nutrient soil 3 is composed of the following raw materials in parts by weight: 20-30 parts humus, 40-50 parts ordinary soil, 4-6 parts bone meal, 3-5 parts wood ash, and 8-10 parts straw powder. The ordinary soil is preferably garden soil or sandy loam.

[0039] It should be noted that humus, bone meal, wood ash, and straw powder are all commercially available products. Wood ash and straw powder can also be collected from nearby rural areas when conditions permit. Ordinary soil is not limited to garden soil or sandy loam. Due to the nutritional benefits of humus, bone ash, and wood ash, ordinary soil can be sourced locally.

[0040] In one embodiment of the present invention, such as Figure 3 and 4 As shown, the cross-section of the holding trough 4 opened on the base 2 is arc-shaped. The angle between the sloping bottom wall of the holding trough 4 and the horizontal plane is 3-8 degrees. The holding trough 4 is open at one end of the slope to form the drainage outlet. The holding trough 4 is provided with a blocking strip 14 in the transverse direction inside the open end of the slope.

[0041] It should be noted that the baffle strips serve to hold the end of the eco-bag in place, preventing it from sliding downwards in the container. The optimal angle between the sloping bottom wall of the container and the horizontal plane is 3-5 degrees to prevent water from draining too quickly from the bottom of the guide channel and container, which could cause water shortage for the sweet potato seedlings growing at the top opening. Additionally, when there is little rainfall and prolonged drought in the year of planting, clay or rubber blocks can be used to temporarily seal the drainage outlet at the bottom of the guide channel to reduce drainage.

[0042] In one embodiment of the present invention, the base 2 is provided with a liquid collection tank 13 at one end of the slope of the holding tank 4. The bottom of the liquid collection tank 13 is connected to each of the guide channels 6. The drip irrigation pipe 9 extends into the liquid collection tank 13 in a horizontal direction and each of the drip holes drips water into each of the guide channels 6 in a corresponding manner.

[0043] It should be noted that, in addition to allowing the drip irrigation pipes to extend and drip water into the upper ends of the guide channels below, the collection trough also temporarily accumulates liquid, allowing it to slowly seep downwards through the guide channels and fully wet the lower sidewalls of the ecological bag. This allows control of the inlet water pressure of the drip irrigation pipes and adjustment of the water flow rate through the drip holes. When the water pressure is high, the dripping becomes a spray, resulting in water accumulation in the collection trough. This accumulated water slowly seeps down the slope along the top of the slope through the fine sand or permeable fibers in the guide channels. Because the bottom of the ecological bag's sidewalls is pressed against the fine sand or permeable fibers, if the nutrient soil inside the ecological bag is dry, it will also absorb water from the guide channels, thus wetting the fibrous roots on the sweet potato tubers. This achieves the effect of directly and quickly watering the sweet potato root system, using less water than direct seepage through the sprinkler irrigation system. Less water consumption results in better growth of sweet potatoes. The principle of applying liquid fertilizer is similar. In this case, the water inlet pipe can be connected to the equipment that pumps fertilizer solution. The injected solution enters the collection tank and seeps downwards along the guide channel. It should be noted that sweet potatoes have many fine fibrous roots during the tuber development period. Some of these fibrous roots can penetrate the bottom of the side wall of the ecological bag and extend into the fine sand of the guide channel to absorb water or fertilizer solution. To ensure that more fibrous roots can penetrate the ecological bag, ecological bags with slightly larger pores on the side wall can be selected.

[0044] In one embodiment of the present invention, the drip irrigation pipe 9, the sprinkler irrigation pipe 8 and the water inlet connector pipe 10 are all plastic pipes and are fixedly connected to the base 2 through preset fixing holes and / or pre-embedded fixing parts.

[0045] In one embodiment of the present invention, such as Figure 2 and Figure 5 As shown, the base 2 has multiple fixed sleeves 15 at its four corners. Each fixed sleeve 15 has a vertically arranged climbing rod 11 fixed inside it. The top of the four climbing rods 11 is composed of multiple interconnected horizontal and diagonally arranged climbing rods 11 forming the roof of the canopy.

[0046] It should be noted that, as Figure 5 As shown, the height of the four vertical climbing poles at the opening of the eco-bag is less than that of the poles at the tail or middle of the eco-bag. This creates a canopy at the top resembling a sloping roof, providing a larger area for the sweet potato vines to climb, ensuring greater sunlight exposure and sufficient photosynthesis for the leaves. It also provides shade for the eco-bags below or adjacent eco-bags placed side-by-side. Understandably, several horizontal poles are placed between the two climbing poles at the opening of the eco-bag to allow the vines to climb upwards. Similarly, in addition to the sloping climbing poles on both sides, multiple horizontal poles are also placed between the two sloping climbing poles to form the canopy. The ends of these horizontal poles can extend outwards, making the overall length significantly greater than the width of the base below, thus creating a larger canopy.

[0047] In one embodiment of the present invention, the ecological bag 1 is a cylindrical bag with a total length of 150-220cm and a diameter of 25-30cm. The ecological bag 1 has a 40-80cm long sweet potato harvesting opening 5 formed on the upper wall of the bag at the tail end by a zipper.

[0048] This invention also provides a method for shallow planting of sweet potatoes, which involves planting sweet potatoes on the ground using the aforementioned herb-bag planting device, and includes the following steps:

[0049] S1. Sowing: First, place the base 2 evenly at intervals in open areas with sufficient sunlight, such as mountain tops, gentle slopes, or wastelands. Then, fill the prepared ecological bags 1 with mixed organic nutrient soil 3. After filling, place the ecological bags 1 lying down in the holding trough 4 of the base 2, with the open end of the ecological bag 1 facing the higher end of the holding trough 4. In March or April, after sprouting the sweet potato seed tubers, insert them into the mixed organic nutrient soil 3 at the open end of the ecological bag 1, or insert the sweet potato seed tubers first and then water them to sprout, thus completing the sowing.

[0050] S2. Growth Management: When the sweet potato vines grow to 30cm, start installing and setting up a shade trellis. Use flexible ropes or strips of cloth to tie the sweet potato vines to the climbing poles 11 nearby to guide the vines to climb the shade trellis. If there is a risk of drought during April to August, start the water-saving irrigation system for drip irrigation. If a drought problem has already occurred, start the water-saving irrigation system for sprinkler irrigation in the evening. During July to September, apply liquid fertilizer once through the drip irrigation pipes 9 of the water-saving irrigation system to promote the rapid growth and expansion of the sweet potato tubers.

[0051] S3. Harvesting: The sweet potato harvesting is carried out from late October to February of the following year. When harvesting, first reach into the opening end of the ecological bag 1, grab the sweet potato, and cut it off 15-25cm from the head end. The cut-off head end is buried in the organic nutrient soil 3 as seed for the next round of germination and growth. Then, open the sweet potato harvesting port 5 from the other end of the ecological bag 1, reach in, grab the sweet potato, and gently pull it out to complete the harvesting.

[0052] The above-mentioned sweet potato bagging planting device provided by this invention has yielded excellent results after being put into use in the southern and central mountainous areas. In areas where it is inconvenient to use agricultural machinery, such as mountain tops or gentle slopes, or where the soil is inherently barren or polluted and cannot be cultivated, the device has enabled the successful harvest of high-quality sweet potatoes. The fully grown sweet potato tubers, when harvested from late October to December of the same year or January of the following year, are 70-180cm in length and have an average diameter of over 4cm, exhibiting good quality and high yield. Figure 6 As shown, a is a photo of the length of the sweet potatoes in the ecological bag when they were harvested at the end of October of that year, and b is a photo of the thickness of the sweet potatoes harvested in December of that year compared with the width of an adult's palm.

[0053] The bagging and shallow planting device and method for *Ophiopogon japonicus* provided by this invention are not limited to the planting of wild yams such as *Ophiopogon japonicus*, but are also suitable for the planting of conventional yams.

[0054] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A method for shallow planting of sweet potato, characterized in that, Sweet potato bagging and planting devices are used for planting on the ground. These devices include ecological bags, a base, a water-saving irrigation mechanism, and a shade-covering trellis mechanism. The ecological bags are filled with mixed organic nutrient soil. The base has a holding trough for placing the ecological bags. The bottom wall of the holding trough is sloped, with one end higher than the other. The opening of the ecological bag is located at the higher end of the trough bottom wall. The tail section of the ecological bag has an openable and closable sweet potato harvesting port. The bottom wall of the holding trough has several guide grooves extending from one end to the other. The holding tank has a drain outlet at the lower end of its bottom wall, and a water-saving irrigation mechanism at the higher end of its bottom wall. The water-saving irrigation mechanism includes a sprinkler pipe, a drip irrigation pipe, and an inlet connector pipe connected via a three-way valve. The sprinkler pipe has a nozzle connected to its outlet end to spray water towards the ecological bag. One end of the drip irrigation pipe is closed, and its wall has drip holes corresponding to the guide channels. The shading climbing frame mechanism includes a canopy consisting of multiple climbing poles covering the ecological bag, with the lower ends of the climbing poles fixed to the periphery of the base. The process includes the following steps: S1. Sowing: First, place the base evenly spaced on a mountaintop, gentle slope, or open, sunny wasteland. Then, fill the prepared ecological bags with mixed organic nutrient soil. After filling, place the ecological bags upside down in the holding trough of the base, with the open end of the ecological bag facing the higher end of the holding trough. In March or April, after sprouting the sweet potato seed tubers, insert them into the mixed organic nutrient soil at the open end of the ecological bag. Alternatively, insert the sweet potato seed tubers first and then water them to sprout, thus completing the sowing process. S2. Growth Management: When the sweet potato vines grow to 30cm, begin to install and erect a shade trellis. Use flexible ropes or strips of cloth to tie the sweet potato vines to the nearby climbing poles to guide them to climb the shade trellis. If there is a risk of drought during April to August, start the water-saving irrigation system for drip irrigation. If drought has already occurred, start the water-saving irrigation system for sprinkler irrigation in the evening. During July to September, apply liquid fertilizer once through the drip irrigation pipes of the water-saving irrigation system to promote the rapid growth and expansion of the sweet potato tubers. S3. Harvesting: The sweet potato harvesting is carried out from late October to February of the following year. When harvesting, first reach into the opening of the ecological bag, grab the sweet potato, and cut it off 15-25cm from the head end. Bury the cut-off head end in a mixture of organic matter and nutrient soil as seed for the next round of germination and growth. Then, open the sweet potato harvesting port from the other end of the ecological bag, reach in, grab the sweet potato, and gently pull it out to complete the harvesting.

2. The shallow planting method for *Sweet potato* according to claim 1, characterized in that, The mixed organic nutrient soil is made by fully mixing the following raw materials in parts by weight: 20-30 parts humus, 40-50 parts ordinary soil, 4-6 parts bone meal, 3-5 parts wood ash and 8-10 parts straw powder.

3. The shallow planting method for *Sweet potato* according to claim 2, characterized in that, Ordinary soil is garden soil or sandy loam.

4. The shallow planting method for *Sweet potato* according to claim 1, characterized in that, The base is made of weather-resistant plastic or precast concrete, and the guide channel is filled with fine sand or permeable fiber cloth.

5. The shallow planting method for *Sweet potato* according to claim 4, characterized in that, The cross-section of the container trough on the base is arc-shaped, and the angle between the sloping bottom wall of the container trough and the horizontal plane is 3-8 degrees. The container trough is open at one end of the slope to form the drain outlet, and a baffle plate is provided inside the open end of the container trough along the horizontal direction.

6. The shallow planting method for *Sweet potato* according to claim 5, characterized in that, The base is provided with a liquid collection tank at one end of the slope of the holding tank. The bottom of the liquid collection tank is connected to each of the guide channels. The drip irrigation pipe extends into the liquid collection tank in a horizontal direction and each of the drip holes drips water into each of the guide channels in a corresponding manner.

7. The shallow planting method for *Sweet potato* according to claim 4, characterized in that, The drip irrigation pipe, sprinkler irrigation pipe, and water inlet connector pipe are all plastic pipes and are fixedly connected to the base through preset fixing holes and / or pre-embedded fixing parts.

8. The shallow planting method for *Sweet potato* according to claim 4, characterized in that, Each of the four corners of the base is pre-set with a fixing sleeve, and a vertically arranged climbing rod is fixed in each fixing sleeve. The top of the four climbing rods is composed of multiple interconnected horizontal and diagonally arranged climbing rods, forming the roof of the canopy.

9. The shallow planting method for *Sweet potato* according to any one of claims 1 to 8, characterized in that, The ecological bag is a cylindrical bag with a total length of 150-220cm and a diameter of 25-30cm. A zipper is installed on the upper wall of the bag at the tail end to form a 40-80cm long digging opening for the sweet potato.

Images