Movable covering equipment and planting method for harvesting fragrant-flowered garlic in slack season by using movable covering equipment

Abstract

The embodiment of the invention provides movable covering equipment respectively mounted on arch frames and a planting method for harvesting fragrant-flowered garlic in slack seasons, and relates to the technical field of fragrant-flowered garlic planting. Comprising a clamping seat which is of a rectangular frame structure formed by welding two long frames and two short frames; the number of the inserting pipes is multiple, every two inserting pipes form a group, the inserting pipes in each group are installed on the long frames of the clamping base at equal intervals, and the inserting pipes are of hollow cylindrical structures which are open up and down; the number of the arch frames is multiple, the transverse span of the arch frames is matched with the short frame of the clamping base, and the two ends of each arch frame are inserted into the corresponding set of insertion pipes respectively; the number of the beam frames is three, and the beam frames are respectively installed on the arch frame. The equipment provided by the invention can be quickly mounted and dismounted and is convenient to move, a shed body can be formed by utilizing the equipment, the flexibility of the equipment is improved, and effective collection of non-dormant Chinese chives and dormant Chinese chives can be achieved by quickly changing the coverage area of the shed body.

Description

Technical Field

[0001] The invention relates to the technical field of leek planting, in particular to a movable covering device and a planting method for harvesting leeks in the off-season using the movable covering device. Background Art

[0002] Chinese chives (Allium tuberosum Rottler ex Spreng), also known as leek and long vegetable, are native to China and belong to the genus Allium of the Liliaceae family. They are perennial herbs with a flowering period from July to September.

[0003] Chinese chives have a cultivation history of more than 3,000 years in my country, and the cultivation mode has undergone many changes, improvements and combinations. That is, the combination of open field planting, cold shed planting, greenhouse planting and container planting has basically achieved the year-round supply of chives. In northern my country, the off-season for chive production is from November to April of the following year. During this period, the temperature is low and chives enter a dormant period. There are relatively few commercial chives, and the appearance of chives is relatively poor. In order to ensure that chives are still produced in the off-season, the shed will be used to provide a suitable growth environment for chives to ensure that chives are still produced in the off-season.

[0004] The leek greenhouses currently used mostly adopt an arched structure with a metal frame and covered with plastic film and thermal insulation quilts on the outside. However, the greenhouses currently used are large in size, difficult to transfer, and not convenient to move quickly. When a planting field is harvested, the greenhouse can only remain in place and wait for leeks to be replanted, which is not conducive to improving planting efficiency.

[0005] Based on this, the present invention is proposed. Summary of the invention

[0006] According to an embodiment of the present invention, a movable covering device and a planting method for harvesting leeks in the off-season using the movable covering device are provided, which are used to solve the problems that the existing greenhouses are large in size, difficult to transfer, and not convenient for rapid movement.

[0007] In a first aspect of the present invention, a movable covering device is provided.

[0008] The movable covering device comprises: a card base, which is a rectangular frame structure formed by welding two long frames and two short frames;

[0009] There are several intubations, two in each group, and each group of intubations is equidistantly mounted on the long frame of the card holder, and the intubations are hollow cylindrical structures that are open at the top and bottom;

[0010] Arch frames, there are several arch frames, the lateral span of the arch frames is adapted to the short frame of the card seat, and the two ends of each arch frame are respectively plugged into each group of inserts;

[0011] Beam frames, there are three beam frames, which are respectively installed on the arch frames;

[0012] A first baffle, wherein the first baffle has a plurality of groups, each group has two first baffles, and the two first baffles in each group are clamped with the arch frame;

[0013] A buckle mechanism is installed on the arch frame, and the beam frame is connected to the arch frame through the buckle mechanism.

[0014] Preferably, the buckle mechanism comprises:

[0015] a second baffle, the second baffle being mounted on the arch;

[0016] a third baffle, the third baffle being mounted on the arch frame and being symmetrically arranged with the second baffle relative to the arch frame;

[0017] A slideway, wherein the slideway is provided on the third baffle;

[0018] A slider, the slider is slidably mounted on the third baffle and is engaged with the slideway;

[0019] A spring is installed between the slider and the third baffle.

[0020] Preferably, a fixing mechanism is installed on the short frame of the card holder, and the fixing mechanism includes:

[0021] A fixed cylinder, which is installed on the short frame of the holder and is a hollow cylindrical structure open at the top and bottom;

[0022] A slide groove, the slide groove is arranged on the fixed cylinder, and the slide groove is arranged in a J shape;

[0023] A sliding block, the sliding block is slidably installed in the fixed cylinder;

[0024] A slide bar, the slide bar being mounted on the top of the slide block;

[0025] A pull rod, the pull rod is mounted on the slide rod and extends out of the slide groove;

[0026] An insert rod is installed at the bottom end of the sliding block; the bottom end of the insert rod is conical.

[0027] Preferably, a push-off mechanism is installed on the long frame of the card holder, and the push-off mechanism includes:

[0028] Push board;

[0029] A rotating shaft, the rotating shaft is installed in the middle of the push plate, and both ends of the rotating shaft are rotatably installed on the long frame of the card seat;

[0030] A lead screw, the lead screw being rotatably mounted on the base;

[0031] A moving block, the moving block being threadedly connected to the lead screw;

[0032] A first push block and a second push block, wherein the first push block and the second push block are symmetrically mounted on the moving block in the vertical direction.

[0033] An avoidance groove, the avoidance groove is arranged between the first push block and the second push block, and is used to avoid the rotating shaft;

[0034] A first bump and a second bump, wherein the first bump and the second bump are mounted on the push plate, and the first bump and the second bump are arranged in a trapezoidal shape.

[0035] Preferably, there are two first protrusions and two second protrusions respectively, which are symmetrically mounted on the push plate;

[0036] The threads on both sides of the lead screw are arranged symmetrically with each other;

[0037] The movable blocks are two and are symmetrically connected to the lead screw through threads.

[0038] In a second aspect of the present invention, a shed is provided.

[0039] The shed includes a movable covering device, a plurality of movable covering devices are arranged equidistantly at intervals of 1m, and further includes:

[0040] A greenhouse film, which covers the top of each of the movable covering devices, and the greenhouse film fits with the arch frame in each of the movable covering devices;

[0041] A quilt is installed on the greenhouse film.

[0042] In a second aspect of the present invention, a method for planting leeks for harvesting in the off-season is provided.

[0043] The method comprises the following steps:

[0044] Step 1: Land preparation, fertilization and ridge making: 5m3 / mu 3 ~8m 3 Or 3000kg of decomposed organic fertilizer and 50kg of potassium sulfate type ternary compound fertilizer, with the tillage depth not less than 25cm, the ground should be leveled and raked to make ridges. The ridge core is 5m wide from north to south and more than 80m long from east to west; there are several ridge cores, which are arranged in the north-south direction, with a spacing of 5m between adjacent ridge cores; half of the ridge cores are used for planting and harvesting non-dormant leeks, and the other half are used for planting and harvesting leeks in the winter dormant period.

[0045] Step 2: Cultivate non-dormant leeks in the open field;

[0046] Step 3: Cultivate non-dormant leeks in a greenhouse;

[0047] Step 4: Cultivation of dormant leeks.

[0048] Preferably, step 2 comprises the following steps:

[0049] Step 1: Sowing: Use hole sowing in the core of the bed for non-dormant leeks. The sowing time is from April 20 to June 10. The sowing time should be as early as possible and not as late as possible. The row spacing is 30cm, the hole spacing is 15cm, and there are about 18 seeds in each hole. The seed rate per mu is 0.75kg to 1.0kg.

[0050] Step 2: Equip micro-spraying facilities: dig furrows every 6m in the east-west direction of the ridge core, with a depth of 20cm to 30cm, install main water pipes and poles in the furrows, install butterfly sprinklers on the top of the poles, and connect the butterfly sprinklers to the main water pipes through hoses;

[0051] Step 3: Pre-seedling management: Use micro-spraying facilities to spray water for the first time, and 1 to 2 days after watering, use 33% pendimethalin at a dosage of 200ml to 300ml per mu for ground spraying;

[0052] Step 4: Management after all seedlings are planted: 13 to 15 days after sowing, keep the ground dry and moist after all seedlings are planted;

[0053] Step 5: Thrips control: From the time when the seedlings are fully grown to July 1, use 0.6% 500-fold aqueous solution of matrine, with a dosage of 120 to 160 ml per mu, and spray once;

[0054] Step 6: Rooting and growth control: From July 1 to August 30, pay attention to water and fertilizer control, drain water through ridges and prevent waterlogging in time after rain, weed and remove leek stalks in time; during this period, when the seedlings are 30cm tall, spray with chlorophyll 1500 solution, and spray for the second time 10 days after spraying;

[0055] Step 7: Release insect pathogenic nematodes: From August 20 to September 10, 700 insect pathogenic nematode corpses were applied per mu. The holes were dug to a depth of 3 to 4 cm and covered with soil. One nematode was applied per square meter to control the population of leek maggots.

[0056] Step 8. Top dressing: When applying top dressing, choose N, P, K 17-17-17 ternary quick-acting water-soluble fertilizer, and use micro-spraying setting with water, 15kg each time, and spray with clean water after spraying.

[0057] Preferably, step three includes the following steps:

[0058] The first step is to apply fertilizer before covering the shed: Apply 50kg of potassium sulfate type triple compound fertilizer per mu before covering the shed.

[0059] The second step is to cover the greenhouse: for non-dormant leeks, build the greenhouse in mid-October, cover the bed core with greenhouse film in mid-to-late October, and cover with a quilt in early November. After covering the greenhouse, the daytime temperature in the greenhouse is maintained at 22℃ ~ 25℃. If it exceeds 25℃, open the vents to let in air and cool down.

[0060] Step 3: Start harvesting non-dormant leeks: harvest the first crop in early November, the second crop in early December, and the third crop in early to mid-January of the following year.

[0061] Preferably, step 4 includes the following steps:

[0062] Step 1: Open-field cultivation of dormant leeks: The operation method of this step is the same as that of step 2, but the sowing date, thrips control date, rooting date, growth control date, and insect pathogenic nematode release date in this step are all postponed by 2 to 3 months relative to the date in step 2;

[0063] Step 2: From late December to mid-late January of the following year, clean the dormant leek cores, move the shed that was originally placed on the non-dormant leek planting cores to the dormant leek cores, and cover them with shed film and quilts; it is necessary to ensure that the soil layer has frozen when the shed is covered, and the frozen soil depth is about 4cm;

[0064] Step 3: Start harvesting dormant leeks: the first harvest is in late January, the second harvest is in mid-February, the third harvest is in early to mid-March, and the fourth harvest is from late March to early April.

[0065] One or more technical solutions provided in this application have at least the following technical effects or advantages:

[0066] The movable covering device provided by the present invention can be quickly installed and disassembled, and is easy to move. The device can be used to form a shed body, improve the flexibility of the device, and can also achieve effective harvesting of non-dormant leeks and dormant leeks by quickly changing the shed body coverage area. The present invention can take into account the planting and harvesting of non-dormant leeks and dormant leeks at the same time, and only half the number of shed bodies of the core can be used to complete the planting and harvesting of non-dormant leeks and dormant leeks, which greatly saves the equipment cost invested, and can ensure that the maturity period of normal leeks continues from the normal harvest period to the end of the off-season, ensuring that there is still a high planting income in the off-season when the price of leeks is high.

[0067] It should be understood that the contents described in the summary of the invention are not intended to limit the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0068] The above and other features, advantages and aspects of the embodiments of the present invention will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. In the accompanying drawings, the same or similar reference numerals represent the same or similar elements, wherein:

[0069] Figure 1 A schematic structural diagram of a movable covering device according to an embodiment of the present invention is shown;

[0070] Figure 2 A schematic diagram of an exploded structure of a snap mechanism of a movable covering device according to an embodiment of the present invention is shown;

[0071] Figure 3 A front view of a snap mechanism of a movable cover device according to an embodiment of the present invention is shown;

[0072] Figure 4 A schematic diagram of an exploded structure of a movable covering device fixing mechanism according to an embodiment of the present invention is shown;

[0073] Figure 5 A schematic structural diagram of a movable covering device pushing-off mechanism according to an embodiment of the present invention is shown;

[0074] Figure 6 A schematic diagram of an exploded structure of a push-off mechanism of a movable covering device according to an embodiment of the present invention is shown;

[0075] Figure 7 An enlarged view of A of a movable covering device according to an embodiment of the present invention is shown;

[0076] Figure 8 A cross-sectional view showing a movable covering device push-off mechanism according to an embodiment of the present invention.

[0077] The reference numerals are as follows:

[0078] 1. Base, 2. Insert pipe, 3. Arch frame, 4. Beam frame, 401. First baffle, 5. Buckle mechanism, 51. Second baffle, 52. Third baffle, 521. Slideway, 53. Slider, 54. Spring, 6. Fixing mechanism, 61. Fixing cylinder, 62. Slide groove, 63. Slider, 64. Slide rod, 65. Pull rod, 66. Insert rod, 7. Push-off mechanism, 71. Push plate, 711. Rotating shaft, 72. Lead screw, 73. Moving block, 731. First push block, 732. Second push block, 733. Avoidance groove, 74. First protrusion, 75. Second protrusion. DETAILED DESCRIPTION

[0079] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0080] In addition, the term "and / or" in this text is merely a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B may represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this text generally represents an "or" relationship between the associated objects before and after.

[0081] An embodiment of the present invention provides a movable covering device, which is used to cover leeks in a dormant state in winter, so as to provide a suitable temperature for the leeks, enabling the leeks in this area to break out of the dormant state and enter the normal growth cycle.

[0082] As Figure 1 shown, the movable covering device includes: a socket 1, an insertion tube 2, an arch frame 3, a beam frame 4, and a buckle mechanism 5. The socket 1 is a rectangular frame structure welded by two long side frames and two short side frames. The length of the long side frame is 6 m, and the length of the short side frame is 5 m. Both are U-shaped metal frames. When in use, the socket 1 is placed on the ground as a whole, and the open area in the middle is the area for growing leeks. There are several insertion tubes 2. Every two form a group, and each group of insertion tubes 2 is installed equidistantly on the long side frame of the socket 1 at an interval of 1 m, with a total of 7 groups, that is, 14 insertion tubes. The insertion tube 2 is a hollow cylindrical structure with openings at the top and bottom, made of stainless steel, and its height is not less than 25 cm. There are several arch frames 3. The arch frame 3 is an arc bent from a stainless steel round tube, with a top height of 1.8 m and a span of 5 m. Its horizontal span is adapted to the short side frame of the socket 1. The two ends of each arch frame 3 are respectively inserted into each group of insertion tubes 2. There are three beam frames 4, which are respectively installed on the arch frame 3. One beam frame 4 is at the top of the arch frame 3, and the other two beam frames 4 are symmetrically installed in the middle of the arch frame 3. The beam frame 4 is perpendicular to the arch frame 3 and is used to form a stable whole together with each arch frame 3. In addition, there is a first baffle 401. There are several groups of the first baffle 401. Each group of the first baffle 401 has two. The two first baffles 401 in each group are clamped with the arch frame 3. The first baffle 401 and the arch frame 3 cooperate with each other to prevent the beam frame 4 from having relative displacement with the arch frame 3 in its axial direction. The buckle mechanism 5 is installed on the arch frame 3, and the beam frame 4 is connected to the arch frame 3 through the buckle mechanism 5.

[0083] As Figure 2 and Figure 3As shown, the buckle mechanism 5 includes: a second baffle 51, a third baffle 52, a slider 53 and a spring 54. The second baffle 51 is mounted on the arch frame 3, and the third baffle 52 is mounted on the arch frame 3, and is symmetrically arranged with the second baffle 51 relative to the arch frame 3. By limiting the second baffle 51 and the third baffle 52, it can be achieved that the beam frame 4 and the arch frame 3 will not be relatively displaced in the horizontal direction. The slider 53 is slidably mounted on the third baffle 52, and the spring 54 is installed between the slider 53 and the third baffle 52. The slider 53 can be stretched or compressed by moving the slider 53. After the external force is removed, the slider 53 can be driven to reset by the tension or elastic force of the spring 54. In addition, it also includes a slideway 521, which is opened on the third baffle 52, and the slider 53 is clamped with the slideway 521 to limit the slider 53 to prevent it from falling off. In this embodiment, both the second baffle 51 and the slider 53 are provided with inclined surfaces.

[0084] When the above structure is used, each arch frame 3 is first plugged into the insertion tube 2, and then the beam frame 4 is placed from top to bottom. The beam frame 4 cooperates with the inclined surface on the second baffle 51 and the slider 53, so that the slider 53 moves away from the second baffle 51 and compresses the spring 54. When the beam frame 4 enters the space between the second baffle 51 and the third baffle 52, and the first baffle 401 is engaged with the arch frame 3, the elastic force of the spring 54 is then used to reset the slider 53, and the beam frame 4 is limited in the up and down directions, so that the beam frame 4 and the arch frame 3 are fixedly installed. It is worth noting that since the beam frame 4 is made of stainless steel and has elasticity, the beam frame 4 and each buckle mechanism 5 can be installed one by one without synchronous installation.

[0085] This structure can quickly connect the beam 4 and the arch 3, which is convenient for installation and disassembly. The second baffle 51 and the inclined surface on the slider 53 can be used for guidance and the installation can be completed directly during the downward movement of the beam 4 without the need to additionally move the slider 53, which is easy to operate.

[0086] like Figure 1 and Figure 4 As shown, a fixing mechanism 6 is installed on the short frame of the card holder 1, and the fixing mechanism 6 includes: a fixed cylinder 61, a slide groove 62, a sliding block 63, a slide rod 64, a pull rod 65 and an insertion rod 66. The fixed cylinder 61 is installed on the short frame of the card holder 1. The fixed cylinder 61 is a hollow cylindrical structure that is open up and down. The sliding block 63 is slidably installed in the fixed cylinder 61. The outer wall of the sliding block 63 fits with the inner wall of the fixed cylinder 61 to ensure that the sliding block 63 can only move along the axial direction of the fixed cylinder 61. The slide rod 64 is installed on the top of the sliding block 63. The slide groove 62 is opened on the fixed cylinder 61, and the slide groove 62 is set in a J shape. The pull rod 65 is installed on the slide rod 64, and the pull rod 65 extends out of the slide groove 62. The insertion rod 66 is installed at the bottom end of the sliding block 63; the bottom end of the insertion rod 66 is set in a conical shape, which is convenient for the insertion of the insertion rod 66 into the soil.

[0087] When the above structure is in use, the card holder 1 is preferably placed on the ground. At this time, the bottom end of the insertion rod 66 contacts the ground. Then, the pull rod 65 is held and pushed downward along the vertical section of the slide groove 62, so that the slide rod 64 and the sliding block 63 move downward, and the insertion rod 66 is inserted into the soil. Then, the pull rod 65 is rotated along the horizontal part at the bottom of the slide groove 62. This structure can enhance the overall tensile strength of the movable covering device in the horizontal direction, making the placement of the device on the ground more stable and avoiding sliding due to external forces such as strong winds. At the same time, the limit of the slide groove 62 is set in a J-shaped manner, which can limit the pull rod 65. When the pull rod 65 rotates and corresponds to the end of the slide groove 62, it can be limited in the up and down directions to prevent the insertion rod 66 from moving upward and improve stability.

[0088] like Figure 1 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, a push-off mechanism 7 is installed on the long side frame of the card holder 1, and the push-off mechanism 7 includes: a push plate 71, a rotating shaft 711, a lead screw 72, a moving block 73, a first push block 731, a second push block 732, an avoidance groove 733, a first protrusion 74 and a second protrusion 75. The rotating shaft 711 is installed in the middle of the push plate 71, and both ends of the rotating shaft 711 are respectively rotatably installed on the long side frame of the card holder 1. A rotation space is left between the push plate 71 and the long side frame of the card holder 1, and the rotation center is the card holder 1. The lead screw 72 is rotatably installed on the card holder 1, and is located in the groove of the U-shaped frame of the long side frame of the card holder 1. The threads on both sides of the lead screw 72 are symmetrically arranged. The moving block 73 is threadedly connected to the lead screw 72. There are two of them, which are symmetrically threadedly connected to the lead screw 72. Rotating the lead screw 72 can make the moving block 73 move along the axial direction of the lead screw 72. In order to ensure the stability of the moving block 73, a slide bar is provided on the base 1. The slide bar passes through the moving block 73, which can ensure that the moving block 73 remains stable when moving and does not rotate. The first protrusion 74 and the second protrusion 75 are installed on the push plate 71, and are staggered in the length direction. The first protrusion 74 and the second protrusion 75 are arranged in a trapezoidal shape. There are two first protrusions 74 and the second protrusion 75, respectively, which are symmetrically installed on the push plate 71. The first push block 731 and the second push block 732 are symmetrically installed on the moving block 73 in the upper and lower directions. The avoidance groove 733 is arranged between the first push block 731 and the second push block 732, which is used to avoid the rotating shaft 711 to avoid interference. In this embodiment, one end of the lead screw 72 passes through the outer wall of the base 1, and a nut is provided at this end, so that the lead screw 72 can be rotated with a wrench.

[0089] When the above structure is in use, the screw 72 is rotated to make the two moving blocks 73 approach or move away from each other. After the second push block 732 contacts the inclined surface of the second protrusion 75, the push plate 71 can be rotated, so that the bottom of the push plate 71 moves away from the card seat 1. When the second push block 732 leaves the second protrusion 75, the first push block 731 contacts the inclined surface of the second protrusion 75, and the push plate 71 rotates in the opposite direction. This structure can make the push plate 71 rotate, so that the top and bottom ends of the push plate 71 alternately move away from and approach the card seat 1, and then push away the soil pressed around the card seat 1, so as to facilitate the overall movement of the device. In addition, the symmetrically arranged moving blocks 73, the first protrusion 74 and the second protrusion 75 ensure that the force of the push plate 71 is stable when rotating. In addition, the contact trapezoidal setting ensures that the first protrusion 74 and the second protrusion 75 will not interfere with each other when they cooperate with the first push block 731 and the second push block 732.

[0090] The present invention also provides a shed body, which is composed of a plurality of movable covering devices arranged equidistantly at intervals of 1m, and the arrangement direction is the direction of the long frame of the card seat in the movable covering device. It also includes: a shed film and a quilt, the shed film is an integral shed film, and a 1mm thick plastic drip-free film is selected to cover the top of each movable covering device, which can cover the gap between two adjacent movable covering devices, and the shed film fits the arch frame in each movable covering device. The width of the shed film is more than 1m longer than the arc length of the arch frame 3 in the movable covering device, and it is ensured that the shed film can extend the movable covering device by more than 0.5m on both sides along the arc direction of the arch frame 3. In addition, the shed film part at the top is cut with an air outlet, and the size of the cut air outlet part is a rectangle of 0.3*0.3. When the air outlet is not covered, air exchange and cooling inside the shed body can be achieved, and the air exchange stops when the air outlet is blocked.

[0091] When in use, the greenhouse film is covered on several arranged movable covering devices, and it is ensured that there is a margin on both sides of the greenhouse film along the arc direction of the arch frame 3, and then the soil is covered on the part of the greenhouse film extending from the movable covering device, and the greenhouse film is pressed by the soil, so that the greenhouse film is tightly attached to the movable covering device and prevented from moving. At this time, the soil is attached to the push plate 71 in the movable covering device through the greenhouse film. When the greenhouse film needs to be removed, the push plate 71 can be used to push the pressed soil away in the manner described in this embodiment to loosen the greenhouse film.

[0092] The quilt is installed on the greenhouse film. The quilt is a recycled quilt weighing 1250g / 1㎡, which can cover the movable covering equipment. One end of the quilt is fixed to a square tube with a side length of 2cm×2cm. The steel tube can cooperate with a roller shutter machine to roll up the quilt on this side. The roller shutter machine is an existing device, and a model suitable for rolling up 80-90M quilts is selected. In actual use, it is necessary to ensure that the side of the quilt that can be rolled up faces south, which is conducive to rolling up the quilt during the day so that the chives in the movable covering equipment can receive light.

[0093] In this embodiment, both ends of the shed body are sealed with shed film and quilts as needed.

[0094] In addition, the present invention also provides a planting method for harvesting leeks in the off-season, comprising the following steps:

[0095] Step 1: Land preparation, fertilization and ridge making: 5m3 / mu 3 ~8m 3 Or 3000kg of decomposed organic fertilizer and 50kg of potassium sulfate type ternary compound fertilizer, with the tillage depth not less than 25cm, the ground should be leveled and raked to make ridges. The ridge core is 5m wide from north to south and more than 80m long from east to west; there are several ridge cores, which are arranged in the north-south direction, with a spacing of 5m between adjacent ridge cores; half of the ridge cores are used for planting and harvesting non-dormant leeks, and the other half are used for planting and harvesting leeks in the winter dormant period.

[0096] Step 2: Cultivate non-dormant leeks in the open field;

[0097] Step 3: Cultivate non-dormant leeks in a greenhouse;

[0098] Step 4: Cultivation of dormant leeks.

[0099] Step 2 includes the following steps:

[0100] Step 1: Sowing: Use hole sowing in the core of the bed for non-dormant leeks. The sowing time is from April 20 to June 10. The sowing time should be as early as possible and not as late as possible. The row spacing is 30cm, the hole spacing is 15cm, and there are about 18 seeds in each hole. The seed rate per mu is 0.75kg to 1.0kg.

[0101] Step 2: Equip micro-spraying facilities: dig furrows every 6m in the east-west direction of the ridge core, with a depth of 20cm to 30cm, install main water pipes and poles in the furrows, install butterfly sprinklers on the top of the poles, and connect the butterfly sprinklers to the main water pipes through hoses;

[0102] Step 3: Pre-seedling management: Use micro-spraying facilities to spray water for the first time, and 1 to 2 days after watering, use 33% pendimethalin at a dosage of 200ml to 300ml per mu for ground spraying;

[0103] Step 4: Management after all seedlings are planted: 13 to 15 days after sowing, keep the ground dry and moist after all seedlings are planted;

[0104] Step 5: Thrips control: From the time when the seedlings are fully grown to July 1, use 0.6% 500-fold aqueous solution of matrine, with a dosage of 120 to 160 ml per mu, and spray once;

[0105] Step 6: Rooting and controlling growth: From July 1 to August 30, pay attention to controlling water and fertilizer, drain water through the ridges and prevent waterlogging after rain, and weed and remove the leek stalks in time. During this period, when the seedlings are about 30 cm tall, spray with chlorophyll 1500 solution. After 10 days of spraying, depending on the growth of the leek plants in the field, if the growth is still relatively strong, spray a second time;

[0106] Step 7: Release insect pathogenic nematodes: From August 20 to September 10, 700 insect pathogenic nematode corpses were applied per mu. The holes were dug to a depth of 3 to 4 cm and covered with soil. One nematode was applied per square meter to control the population of leek maggots.

[0107] Step 8. Top dressing: This step is carried out depending on the health of the plants in the field. When top dressing, choose N, P, K17-17-17 ternary quick-acting water-soluble fertilizer. It can be applied with water using a micro-spray setting, 15kg each time. After spraying, spray with clean water.

[0108] Step three includes the following steps:

[0109] The first step is to apply fertilizer before covering the shed: Apply 50kg of potassium sulfate type triple compound fertilizer per mu before covering the shed.

[0110] The second step is to cover the greenhouse: for non-dormant leeks, build the greenhouse body in mid-October, cover the bed core with greenhouse film in mid-to-late October, and cover with quilt in early November. After covering the greenhouse, roll up the quilt at 8 o'clock in the morning, and keep the temperature in the greenhouse at 22℃~25℃ during the day. If the temperature exceeds 25℃, open the vents on the top of the greenhouse film to ventilate and cool down. At 5 o'clock in the afternoon, put down the quilts in the whole greenhouse to cover and keep warm.

[0111] Step 3: Start harvesting non-dormant leeks: harvest the first crop in early November, the second crop in early December, and the third crop in early to mid-January of the following year. Water each crop of leeks one week before harvesting. After the first and second crops are harvested, dig trenches between the rows and apply 50kg of potassium sulfate-type ternary compound fertilizer per mu at an interval of 2 days.

[0112] Step 4 includes the following steps:

[0113] Step 1: Open-field cultivation of dormant leeks: The operation method of this step is the same as that of step 2, but the sowing date, thrips control date, rooting date, growth control date, and insect pathogenic nematode release date in this step are all postponed by 2 to 3 months relative to the date in step 2;

[0114] The second step is to clean the dormant leek core from late December to mid-to-late January of the following year, move the shed that was originally placed on the non-dormant leek planting core to the dormant leek core, and cover it with shed film and quilt; it is necessary to ensure that the soil layer has frozen when the shed is covered, and the frozen soil depth is about 4cm; choose the time to uncover the quilt according to the weather conditions and the temperature in the facility. When the weather is clear, pull up the south side quilt at about 8 am and cover it at about 4:30 pm; pull up the quilt at about 9:30 am in cloudy and snowy weather and cover it at about 3:30 pm; in extremely cold weather with continuous cloudy and light, you can only uncover the quilt for a short time at noon. In addition, after covering the shed, roll up the quilt at 8 am, and keep the temperature in the shed at 22℃~25℃ during the day. If it exceeds 25℃, open the vents on the top of the shed film appropriately to ventilate and cool down, and put down the quilt at 5 pm to cover and keep warm;

[0115] Step 3: Start harvesting dormant leeks: the first harvest is in late January, the second harvest is in mid-February, the third harvest is in early to mid-March, and the fourth harvest is in late March to early April. Water each leek one week before harvesting. Apply 50kg of potassium sulfate-type ternary compound fertilizer per mu by digging furrows between rows 2 days after the first, second and third harvests.

[0116] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A movable covering device, characterized in that: include: The card base (1) is a rectangular frame structure formed by welding two long frames and two short frames; Insert pipes (2), there are a plurality of insert pipes (2), two insert pipes form a group, each group of insert pipes (2) are respectively and equidistantly installed on the long frame of the holder (1), and the insert pipes (2) are hollow cylindrical structures open at the top and bottom; An arch frame (3), wherein there are a plurality of arch frames (3), the lateral span of the arch frame (3) is adapted to the short frame of the card seat (1), and both ends of each arch frame (3) are respectively plugged into each group of insert pipes (2); Beam frames (4), there are three beam frames (4), which are respectively installed on the arch frames (3); A first baffle (401), wherein the first baffle (401) has a plurality of groups, each group has two first baffles (401), and the two first baffles (401) in each group are clamped with the arch frame (3); A buckle mechanism (5), wherein the buckle mechanism (5) is installed on the arch frame (3), and the beam frame (4) is connected to the arch frame (3) via the buckle mechanism (5).

2. The movable covering device according to claim 1, characterized in that The buckle mechanism (5) comprises: A second baffle (51), the second baffle (51) being mounted on the arch frame (3); a third baffle (52), the third baffle (52) being mounted on the arch frame (3) and being symmetrically arranged with the second baffle (51) relative to the arch frame (3); a slideway (521), wherein the slideway (521) is provided on the third baffle (52); A sliding block (53), the sliding block (53) being slidably mounted on the third baffle (52) and being engaged with the slideway (521); A spring (54) is installed between the slider (53) and the third baffle (52).

3. The movable covering device according to claim 2, characterized in that A fixing mechanism (6) is installed on the short frame of the card holder (1), and the fixing mechanism (6) comprises: A fixed tube (61), the fixed tube (61) being mounted on the short frame of the holder (1), the fixed tube (61) being a hollow cylindrical structure open at the top and bottom; A slide groove (62), wherein the slide groove (62) is provided on the fixed cylinder (61), and the slide groove (62) is arranged in a J shape; A sliding block (63), wherein the sliding block (63) is slidably mounted in the fixed cylinder (61); A sliding rod (64), the sliding rod (64) being mounted on the top of the sliding block (63); A pull rod (65), wherein the pull rod (65) is mounted on the slide rod (64), and the pull rod (65) extends out of the slide groove (62); An insert rod (66), the insert rod (66) is installed at the bottom end of the sliding block (63); the bottom end of the insert rod (66) is conical.

4. The movable covering device according to claim 3, characterized in that A push-off mechanism (7) is installed on the long frame of the card holder (1), and the push-off mechanism (7) comprises: Push plate (71); A rotating shaft (711), the rotating shaft (711) is mounted in the middle of the push plate (71), and both ends of the rotating shaft (711) are rotatably mounted on the long frame of the card seat (1); A lead screw (72), the lead screw (72) being rotatably mounted on the holder (1); A moving block (73), wherein the moving block (73) is threadedly connected to the lead screw (72); A first pushing block (731) and a second pushing block (732), wherein the first pushing block (731) and the second pushing block (732) are symmetrically mounted on the moving block (73) in the vertical direction; An avoidance groove (733), the avoidance groove (733) being arranged between the first pushing block (731) and the second pushing block (732) and being used for avoiding the rotating shaft (711); A first protrusion (74) and a second protrusion (75), wherein the first protrusion (74) and the second protrusion (75) are mounted on the push plate (71), and the first protrusion (74) and the second protrusion (75) are arranged in a trapezoidal shape.

5. The movable covering device according to claim 4, characterized in that There are two first protrusions (74) and two second protrusions (75), which are symmetrically mounted on the push plate (71); The threads on both sides of the lead screw (72) are arranged symmetrically with each other; There are two moving blocks (73) which are symmetrically threadedly connected to the lead screw (72).

6. A shed, characterized in that: The movable covering device comprises the movable covering device according to any one of claims 1 to 5, wherein a plurality of the movable covering devices are arranged equidistantly at intervals of 1 m, and further comprises: A greenhouse film, which covers the top of each of the movable covering devices, and the greenhouse film fits with the arch frame in each of the movable covering devices; A quilt is installed on the greenhouse film.

7. A method for planting leeks in the off-season, characterized in that: The implementation of the method relies on the shed body described in claim 6 above, and comprises the following steps: Step 1: Land preparation, fertilization and ridge making: 5m3 / mu 3 ~8m 3 Or 3000kg of decomposed organic fertilizer and 50kg of potassium sulfate type triple compound fertilizer, plowing depth of not less than 25cm, harrowing the ground to make ridges, the ridge core is 5m wide from north to south and more than 80m long from east to west; there are several ridge cores, several ridge cores are arranged in the north-south direction, and the interval between two adjacent ridge cores is 5m; half of the ridge cores are used for planting and harvesting non-dormant leeks, and the other half of the ridge cores are used for planting and harvesting leeks in the winter dormant period; Step 2: Cultivate non-dormant leeks in the open field; Step 3: Cultivate non-dormant leeks in a greenhouse; Step 4: Cultivation of dormant leeks.

8. The off-season leek planting method according to claim 7, characterized in that: Step 2 includes the following steps: Step 1: Sowing: Use hole sowing in the core of the bed for non-dormant leeks. The sowing time is from April 20 to June 10. The sowing time should be as early as possible and not as late as possible. The row spacing is 30cm, the hole spacing is 15cm, and there are about 18 seeds in each hole. The seed rate per mu is 0.75kg to 1.0kg. Step 2: Equip micro-spraying facilities: dig furrows every 6m in the east-west direction of the ridge core, with a depth of 20cm to 30cm, install main water pipes and poles in the furrows, install butterfly sprinklers on the top of the poles, and connect the butterfly sprinklers to the main water pipes through hoses; Step 3: Pre-seedling management: Use micro-spraying facilities to spray water for the first time, and 1 to 2 days after watering, use 33% pendimethalin at a dosage of 200ml to 300ml per mu for ground spraying; Step 4: Management after all seedlings are planted: 13 to 15 days after sowing, keep the ground dry and moist after all seedlings are planted; Step 5: Thrips control: From the time when the seedlings are fully grown to July 1, use 0.6% 500-fold aqueous solution of matrine, with a dosage of 120 to 160 ml per mu, and spray once; Step 6: Rooting and growth control: From July 1 to August 30, pay attention to water and fertilizer control, drain water through ridges and prevent waterlogging in time after rain, weed and remove leek stalks in time; during this period, when the seedlings are 30cm tall, spray with chlorophyll 1500 solution, and spray for the second time 10 days after spraying; Step 7: Release insect pathogenic nematodes: From August 20 to September 10, 700 insect pathogenic nematode corpses were applied per mu. The holes were dug to a depth of 3 to 4 cm and covered with soil. One nematode was applied per square meter to control the population of leek maggots. Step 8. Top dressing: When applying top dressing, choose N, P, K 17-17-17 ternary quick-acting water-soluble fertilizer, and use micro-spraying setting with water, 15kg each time, and spray with clean water after spraying.

9. The off-season leek planting method according to claim 8, characterized in that: Step three includes the following steps: The first step is to apply fertilizer before covering the shed: Apply 50kg of potassium sulfate type triple compound fertilizer per mu before covering the shed. Step 2: Cover the shed: For non-dormant chives, build the shed in mid-October, cover the core of the bed with the shed, cover with shed film in mid-to-late October, and cover with quilt in early November; after covering the shed, keep the temperature in the shed at 22℃~25℃ during the day, and open the vents to ventilate and cool down when it exceeds 25℃; Step 3: Start harvesting non-dormant leeks: harvest the first crop in early November, the second crop in early December, and the third crop in early to mid-January of the following year.

10. The off-season leek planting method according to claim 9, characterized in that: Step 4 includes the following steps: Step 1: Open-field cultivation of dormant leeks: The operation method of this step is the same as that of step 2, but the sowing date, thrips control date, rooting date, growth control date, and insect pathogenic nematode release date in this step are all postponed by 2 to 3 months relative to the date in step 2; Step 2: From late December to mid-late January of the following year, clean the dormant leek cores, move the shed that was originally placed on the non-dormant leek planting cores to the dormant leek cores, and cover them with shed film and quilts; it is necessary to ensure that the soil layer has frozen when the shed is covered, and the frozen soil depth is about 4cm; Step 3: Start harvesting dormant leeks: the first harvest is in late January, the second harvest is in mid-February, the third harvest is in early to mid-March, and the fourth harvest is from late March to early April.

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