A flue-cured tobacco-rice-green manure rotation planting method and transplanting device thereof

Abstract

The present invention relates to the technical field of flue-cured tobacco planting, in particular to a flue-cured tobacco-rice-green manure rotation planting method and a transplanting device thereof, wherein the planting method specifically comprises the following steps: first, sowing and raising seedlings of flue-cured tobacco, after raising seedlings, using a transplanting device to transplant and plant the flue-cured tobacco seedlings on a field where ridges have been formed, and harvesting tobacco leaves after the flue-cured tobacco matures; secondly, planting late rice after tobacco leaf harvesting, sowing astragalus 20-25 days before late rice harvesting; then, turning over and returning the fields after astragalus is in full bloom in mid-April of the following year, and planting the first-season rice. The present invention is beneficial to increasing the organic matter content of the cultivated layer soil by introducing astragalus, realizing the combination of cultivated land use and maintenance and improved fertilization, improving the fertility of tobacco field soil, and achieving four crops and four harvests in two years through the cyclic planting of flue-cured tobacco, late rice, astragalus and regenerated rice.

Description

Technical Field

[0001] The invention relates to the field of flue-cured tobacco planting, and in particular to a flue-cured tobacco-rice-green manure rotation planting method and a transplanting device thereof. Background Art

[0002] A three-stage green manure in-situ application method for tobacco fields is disclosed in the patent with publication number CN109923984B, which selects a planting area that meets the requirements of flue-cured tobacco cultivation and takes into account the basic growth requirements of rice, green manure, and fresh corn.

[0003] A flue-cured tobacco transplanting plant spacing locator is disclosed in the patent with publication number CN204231911U. The flue-cured tobacco transplanting plant spacing locator comprises a push handle, a locator frame and a hollow disc, wherein the push handle is arranged on the locator frame.

[0004] However, the above method still has certain defects when used. Due to the long-term multiple cropping of tobacco and rice rotation and the large-scale application of chemical fertilizers, the soil of some tobacco fields has been degraded, which in turn causes poor quality of tobacco leaves and a significant decline in the economic benefits of tobacco-rice rotation. Secondly, during the process of transplanting flue-cured tobacco, the flue-cured tobacco seedlings are usually placed in containers. In the prior art, trays are often used to load flue-cured tobacco seedlings. However, during the process of transplanting flue-cured tobacco, since it takes a certain amount of time to transplant flue-cured tobacco, the flue-cured tobacco seedlings cannot be exposed to the sun for a long time during the transplanting process, especially at noon. The staff will stop working for a certain period of time during lunch. The flue-cured tobacco seedlings are exposed to the strong sunlight at noon, which can easily lead to water loss in the flue-cured tobacco seedlings, and then cause the tobacco seedlings to die after transplanting. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a flue-cured tobacco-rice-green manure rotation planting method and a transplanting device thereof.

[0006] To achieve the above purpose, the technical solution adopted by the present invention is: a flue-cured tobacco-rice-green manure rotation planting method, which specifically includes the following steps:

[0007] Step 1: First, sow and raise seedlings of flue-cured tobacco. After the seedlings are raised, transplant the tobacco seedlings onto the ridged fields using a transplanting device, and harvest the tobacco leaves after the flue-cured tobacco matures.

[0008] Step 2: After the tobacco leaves are harvested, water is applied, the tobacco ridges are tilled with a rotary tiller, the soil is raked, fertilizer is applied, and the field is leveled. Then, the cultivated late rice seedlings are planted in the field and harvested when the late rice is mature.

[0009] Step 3: Sow the astragalus seeds in the rice field 20-25 days before the rice is harvested in step 2 above. After the late rice is harvested, dig a cross-shaped furrow and turn over and return the seeds to the field after the astragalus is in full bloom in mid-April of the following year.

[0010] Step 4: After turning over and returning the Chinese milkvetch to the field, level the field and plant the first-season rice. Harvest the first-season rice in early August and irrigate the field with shallow water with the water surface not exceeding 3 cm. Finally, harvest the regenerated rice after it matures.

[0011] Preferably, the pH value of the field where flue-cured tobacco, rice, astragalus and ratoon rice are planted is 5.5-6.5.

[0012] Preferably, a transplanting device is provided for transplanting flue-cured tobacco seedlings, comprising a bracket, both sides of which are fixedly connected to a water tank, a positioning wheel for positioning the tobacco seedlings for transplanting is installed in the center of the bracket for lifting, both sides of the positioning wheel are drivingly connected to a winding wheel, a rubber tube for watering the tobacco seedlings is wound around the winding wheel, the water tank is used to supply water to the rubber tube, both ends of the bottom of the water tank are provided with cone wheels, both ends of the bracket are fixedly connected to a plurality of placement plates for placing the tobacco seedlings, and a plurality of trays are placed on both sides of the top of the placement plates.

[0013] Preferably, both ends of the cone wheel are rotatably connected to legs, and the end of the leg away from the cone wheel is fixedly connected to the bottom wall panel of the water tank. The four cone wheels are respectively installed at the two ends of the bottom of the two water tanks through eight legs. The bottom of the leg is provided with a protrusion, which is used to draw a concave line on the inclined surface of the ridge.

[0014] Preferably, a cross bar is fixedly connected to the center of the inner top of the bracket, a rectangular column is slidably connected to the cross bar, a connecting frame is fixedly connected to the top of the rectangular column, the tops of the two rectangular columns are fixed by the connecting frame, the positioning wheel is rotatably installed on the opposite side of the bottom of the two rectangular columns, bearings are embedded in the bottom of the two rectangular columns, the inner ring of the bearings is sleeved with a rotating shaft, the two bearings are rotatably sleeved on both ends of the rotating shaft respectively, a plurality of reinforcement rods are fixedly connected to the outer wall at the center of the rotating shaft, the end of the reinforcement rod away from the rotating shaft is fixedly connected to the inner wall of the positioning wheel, a plurality of connecting rods are fixedly connected to the outer wall of the positioning wheel, and the end of the connecting rod away from the positioning wheel is fixedly connected to the positioning bucket.

[0015] Preferably, a rotating groove is opened on the inner walls on both sides of the center of the bracket, a rotating ring is rotatably sleeved in the rotating groove, the rotating ring is fixedly connected to one side of the winding wheel, the side of the rotating ring away from the winding wheel is fixedly connected to the first gear, the bottom of the first gear is meshedly connected to the second gear, the two first gears are respectively arranged on the side where the two winding wheels are close to each other, the two ends of the rotating shaft are fixedly connected to the second gear, and the two second gears are respectively located on the side where the two rectangular columns are away from each other, and the first gear is movably meshed with the second gear.

[0016] Preferably, a submersible pump is fixedly connected to the inside of the water tank, the output end of the submersible pump is connected to a connecting pipe, the end of the connecting pipe away from the submersible pump is connected to an internal pipe, the internal pipe is opened inside the winding wheel, the end of the internal pipe away from the connecting pipe is connected to a rubber tube, the rubber tube is wrapped around the winding wheel, a nozzle is provided at the end of the rubber tube away from the internal pipe, and support plates are fixedly connected to the inner walls on both sides of one end of the bracket, and the support plates are sleeved on the outer wall of the rubber tube.

[0017] Preferably, photovoltaic panels are installed on both sides of the connecting frame, installation shafts are fixedly connected on both sides of both ends of the photovoltaic panel, extension plates are fixedly connected on both ends of the connecting frame, rotation grooves are opened on both ends of the extension plates, and bar frames are fixedly connected on both sides of the top two ends of the bracket, the two installation shafts at one end of the photovoltaic panel are rotatably connected in the two rotation grooves of the two extension plates located on the same side of the connecting frame, and the two installation shafts at the other end of the photovoltaic panel are respectively slidably connected in the two bar frames at the same end of the bracket, the photovoltaic panel is electrically connected to a battery, the battery is embedded in the inside of the bracket, and the battery is used to power the submersible pump.

[0018] Preferably, mounting frames are fixedly connected at the bottom centers of both ends of the bracket, and a plurality of placement plates are fixedly connected to the mounting frames. Grooves are provided on both sides of the tops of the placement plates, and the trays are placed in the grooves. Electromagnets are embedded inside the placement plates, and iron reinforcement ribs are embedded at the bottom of the tray. The electromagnets attract the reinforcement ribs through magnetic force, and the electromagnets are also powered by batteries. The photovoltaic panels are also used to provide shade for the flue-cured tobacco seedlings placed in the trays.

[0019] Preferably, a cover plate is provided on the top of the water tank, the cover plate is slidably connected in the water tank, a handle is fixedly connected at the top center of the cover plate, a water inlet is provided at one end of the top of the cover plate, and limiting blocks are fixedly connected at the four corners of the top of the water tank, and the limiting blocks are movably abutted against the cover plate.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The present invention, by introducing astragalus, is beneficial to increase the organic matter content of the cultivated layer soil, realizes the combination of cultivated land use and maintenance and improvement and fertilization, improves the fertility of tobacco field soil, and achieves four seasons and four harvests in two years through the cyclic planting of flue-cured tobacco, late rice, astragalus and regenerated rice. The four seasons are flue-cured tobacco planting, late rice planting, astragalus planting and regenerated rice planting, and the four harvests are tobacco leaf harvesting, late rice harvesting, and first-season rice and regenerated rice harvesting in the following year. This method has important application value for tobacco leaf production, grain harvest and cultivated land improvement and fertilization.

[0022] 2. The present invention adjusts the position of the photovoltaic panel. On the one hand, the photovoltaic panel can be shielded on the top of the placement plate, thereby effectively shading the tobacco seedlings on the placement plate inside the bracket, which is beneficial to preventing the tobacco seedlings from being dehydrated by the scorching sun. On the other hand, by adjusting the position of the photovoltaic panel, the angle between the photovoltaic panel and the sunlight can be adjusted, so that the photovoltaic panel can face the sun, which is beneficial to improving the power generation efficiency of the photovoltaic panel, thereby achieving the purpose of quickly charging the battery. Secondly, the power supply of the photovoltaic panel to the battery can also effectively power the submersible pump and the electromagnet, without the need for an external power supply, and can achieve a self-sufficient effect.

[0023] 3. The present invention provides a cone wheel, which can compact the soil in the grooves on both sides of the ridge. After the soil in the grooves is compacted, on the one hand, it can be more conducive to the drainage efficiency of the grooves. On the other hand, the compaction process can also help to avoid the situation where too much soil sticks to the shoes of tobacco growers due to the soft surrounding soil. Secondly, after the soil in the grooves is compacted, the speed of rainwater penetration can be reduced, thereby improving the drainage capacity of the grooves. In addition, in dry periods, the two ends of the grooves can be blocked by piling up soil, so that rainwater can be retained in the grooves, so that the grooves have a certain water storage capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 For the present invention Figure 1 An enlarged schematic diagram of the structure of section A is shown;

[0026] Figure 3 For the present invention Figure 1 An enlarged schematic diagram of the structure of part B is shown;

[0027] Figure 4 It is a schematic diagram of the overall structure of the present invention from another perspective;

[0028] Figure 5 For the present invention Figure 4 An enlarged schematic diagram of the C-section structure is shown;

[0029] Figure 6 It is a schematic cross-sectional view of the structure of the positioning wheel of the present invention;

[0030] Figure 7 For the present invention Figure 6 An enlarged schematic diagram of the D-section structure is shown;

[0031] Figure 8 For the present invention Figure 6 An enlarged schematic diagram of the structure of part E is shown;

[0032] Fig. 9 It is a schematic cross-sectional view of the structure of a rectangular column of the present invention;

[0033] Fig.10 For the present invention Fig. 9 The enlarged schematic diagram of the structure of part F is shown;

[0034] Fig.11 This is a schematic diagram of the connection structure between the first gear and the second gear of the present invention;

[0035] Fig.12 This is a schematic diagram of the connection structure between the tray and the placement board of the present invention;

[0036] Fig.13 It is a schematic cross-sectional view of the structure of the tray of the present invention.

[0037] In the figure: 1. bracket; 2. water tank; 3. cover plate; 4. strip frame; 5. cone wheel; 6. support leg; 7. placement plate; 8. mounting frame; 9. rectangular column; 10. photovoltaic panel; 11. extension plate; 12. support plate; 13. rubber tube; 14. protrusion; 15. tray; 16. electromagnet; 17. reinforcing rib; 18. positioning wheel; 19. connecting rod; 20. positioning bucket; 21. connecting pipe; 22. winding wheel; 23. rotating ring; 24. built-in tube; 25. first gear; 26. second gear; 27. rotating shaft; 28. submersible pump; 29. ​​nozzle; 30. reinforcement rod; 31. cross bar; 32. connecting frame. DETAILED DESCRIPTION

[0038] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0039] like Figures 1 to 11 As shown, a tobacco-rice-green manure rotation planting method, the planting method specifically comprises the following steps:

[0040] Step 1: First, sow and raise seedlings of flue-cured tobacco. After the seedlings are raised, transplant the tobacco seedlings onto the ridged fields using a transplanting device, and harvest the tobacco leaves after the flue-cured tobacco matures.

[0041] Step 2: After the tobacco leaves are harvested, water is applied, the tobacco ridges are tilled with a rotary tiller, the soil is raked, fertilizer is applied, and the field is leveled. Then, the cultivated late rice seedlings are planted in the field and harvested when the late rice is mature.

[0042] Step 3: Sow the astragalus seeds in the rice field 20-25 days before the rice is harvested in step 2 above. After the late rice is harvested, dig a cross-shaped furrow and turn over and return the seeds to the field after the astragalus is in full bloom in mid-April of the following year.

[0043] Step 4: After turning over and returning the Chinese milkvetch to the field, level the field and plant the first-season rice. Harvest the first-season rice in early August and irrigate the field with shallow water with the water surface not exceeding 3 cm. Finally, harvest the regenerated rice after it matures.

[0044] In the specific implementation, the flue-cured tobacco is Yunyan 97 or Yunyan 87. The flue-cured tobacco is transplanted in March of the first year. After the tobacco leaves are harvested, the tobacco fields are irrigated and plowed for late rice transplanting. Chinese milk vetch is sown 20 days before the rice and millet harvest. In April of the second year, the Chinese milk vetch is plowed and deeply buried in the field, and regenerated rice is planted. Such a cycle of planting can achieve four seasons and four harvests in two years, the four types are flue-cured tobacco planting, late rice planting, Chinese milk vetch planting and regenerated rice planting, and the four harvests are tobacco leaf harvesting, late rice harvesting, deep burying of Chinese milk vetch and regenerated rice harvesting. This method has important application value for tobacco leaf production, double harvest of tobacco and grain and improvement and fertilization of cultivated land.

[0045] As a further embodiment of the present invention, the pH value of the field where flue-cured tobacco, rice, astragalus and ratoon rice are planted is 5.5-6.5.

[0046] In specific implementation, the introduction of astragalus membranaceus is beneficial to increase the organic matter content of the cultivated layer of soil, realizing the combination of cultivated land use and maintenance and improvement and fertilization.

[0047] As a further embodiment of the present invention, a transplanting device is provided for transplanting flue-cured tobacco seedlings, comprising a bracket 1, both sides of which are fixedly connected to a water tank 2, a positioning wheel 18 for positioning the tobacco seedlings for transplanting is installed at the center of the bracket 1 for lifting, both sides of the positioning wheel 18 are drivingly connected to a winding wheel 22, a rubber tube 13 for watering the tobacco seedlings is wound around the winding wheel 22, the water tank 2 is used to supply water to the rubber tube 13, both ends of the bottom of the water tank 2 are provided with cone wheels 5, both ends of the bracket 1 are fixedly connected to a plurality of placement plates 7 for placing the tobacco seedlings, and a plurality of trays 15 are placed on both sides of the top of the placement plates 7.

[0048] In a specific implementation, after the rubber tube 13 is wound around the reel 22 , the inside of the rubber tube 13 can still allow water to flow.

[0049] As a further implementation scheme of the present invention, both ends of the cone wheel 5 are rotatably connected with supporting legs 6, and one end of the supporting leg 6 away from the cone wheel 5 is fixedly connected to the bottom wall panel of the water tank 2. The four cone wheels 5 are respectively installed at the two ends of the bottom of the two water tanks 2 through eight supporting legs 6. A protrusion 14 is provided at the bottom of the supporting leg 6, and the protrusion 14 is used to draw a concave line on the inclined surface of the ridge.

[0050] In a specific implementation, the protrusion 14 is located on a side of the leg 6 away from the conical wheel 5 .

[0051] As a further implementation scheme of the present invention, a cross bar 31 is fixedly connected to the center of the inner top of the bracket 1, and a rectangular column 9 is slidably connected to the cross bar 31. A connecting frame 32 is fixedly connected to the top of the rectangular column 9, and the tops of the two rectangular columns 9 are fixed by the connecting frame 32. The positioning wheel 18 is rotatably installed on the opposite side of the bottom of the two rectangular columns 9. The bottoms of the two rectangular columns 9 are both embedded with bearings, and the inner rings of the bearings are sleeved with a rotating shaft 27. The two bearings are rotatably sleeved on both ends of the rotating shaft 27 respectively, and a plurality of reinforcement rods 30 are fixedly connected to the outer wall at the center of the rotating shaft 27, and one end of the reinforcement rod 30 away from the rotating shaft 27 is fixedly connected to the inner wall of the positioning wheel 18, and a plurality of connecting rods 19 are fixedly connected to the outer wall of the positioning wheel 18, and one end of the connecting rod 19 away from the positioning wheel 18 is fixedly connected to a positioning bucket 20.

[0052] In a specific implementation, a bolt hole is opened on one side of the crossbar 31 , and a fixing bolt is threadedly connected in the bolt hole. The end of the fixing bolt abuts against the rectangular column 9 , and the fixing bolt is used to fix the rectangular column 9 .

[0053] As a further implementation scheme of the present invention, rotating grooves are opened on the inner walls on both sides of the center of the bracket 1, and a rotating ring 23 is rotatably sleeved in the rotating groove. The rotating ring 23 is fixedly connected to one side of the winding wheel 22, and the side of the rotating ring 23 away from the winding wheel 22 is fixedly connected to the first gear 25, and the bottom of the first gear 25 is meshedly connected to the second gear 26. The two first gears 25 are respectively arranged on the side where the two winding wheels 22 are close to each other, and the two ends of the rotating shaft 27 are fixedly connected to the second gear 26, and the two second gears 26 are respectively located on the side where the two rectangular columns 9 are away from each other, and the first gear 25 is movably meshed with the second gear 26.

[0054] In a specific implementation, when the rectangular column 9 descends, the first gear 25 is disengaged from the second gear 26 , and when the rectangular column 9 rises to the highest point, the first gear 25 is reengaged from the second gear 26 .

[0055] As a further implementation scheme of the present invention, a submersible pump 28 is fixedly connected to the interior of the water tank 2, and the output end of the submersible pump 28 is connected to a connecting pipe 21. The end of the connecting pipe 21 away from the submersible pump 28 is connected to an internal pipe 24. The internal pipe 24 is opened inside the winding wheel 22, and the end of the internal pipe 24 away from the connecting pipe 21 is connected to a rubber tube 13. The rubber tube 13 is wrapped around the winding wheel 22, and a nozzle 29 is provided at the end of the rubber tube 13 away from the internal pipe 24. Support plates 12 are fixedly connected to the inner walls on both sides of one end of the bracket 1, and the support plates 12 are sleeved on the outer wall of the rubber tube 13.

[0056] In a specific implementation, a scraper ring is provided on one side of the support plate 12 away from the winding wheel 22 , and the scraper ring is used to scrape off the dirt on the outer wall of the rubber tube 13 .

[0057] As a further implementation scheme of the present invention, photovoltaic panels 10 are installed on both sides of the connecting frame 32, and installation shafts are fixedly connected on both sides of both ends of the photovoltaic panel 10. Extension plates 11 are fixedly connected on both ends of the connecting frame 32, and rotation grooves are opened on both ends of the extension plates 11. Bar frames 4 are fixedly connected on both sides of the top two ends of the bracket 1. The two installation shafts at one end of the photovoltaic panel 10 are rotatably connected to the two rotation grooves of the two extension plates 11 located on the same side of the connecting frame 32, and the two installation shafts at the other end of the photovoltaic panel 10 are respectively slidably connected to the two bar frames 4 at the same end of the bracket 1. The photovoltaic panel 10 is electrically connected to a battery, and the battery is embedded in the inside of the bracket 1. The battery is used to power the submersible pump 28.

[0058] In a specific implementation, the photovoltaic panel 10 can be provided to effectively shade the tobacco seedlings in the tray 15, and the storage battery can be provided to power the submersible pump 28 during the transplanting process.

[0059] As a further implementation scheme of the present invention, mounting frames 8 are fixedly connected at the bottom centers of both ends of the bracket 1, and multiple placement plates 7 are fixedly connected to the mounting frames 8. Grooves are provided on both sides of the tops of the placement plates 7, and a tray 15 is placed in the grooves. An electromagnet 16 is embedded in the placement plates 7, and an iron reinforcement rib 17 is embedded in the bottom of the tray 15. The electromagnet 16 attracts the reinforcement rib 17 through magnetic force, and the electromagnet 16 is also powered by a battery. The photovoltaic panel 10 is also used to provide shade for the flue-cured tobacco seedlings placed in the tray 15.

[0060] In a specific implementation, the groove opened on the top of the placement plate 7 is provided with a frosted surface, and the frosted surface is used to increase the friction between the placement plate 7 and the tray 15 to prevent the tray 15 on which the tobacco seedlings are placed from sliding off the placement plate 7. It should be noted that in the prior art, tobacco seedlings are usually placed in a nursery container for seedlings. In the present invention, the tobacco seedlings are placed in the tray 15. This technology is common knowledge in the art and will not be disclosed in detail herein.

[0061] As a further implementation scheme of the present invention, a cover plate 3 is provided on the top of the water tank 2, and the cover plate 3 is slidably connected in the water tank 2. A handle is fixedly connected at the center of the top of the cover plate 3, and a water inlet is provided at one end of the top of the cover plate 3. Limiting blocks are fixedly connected at the four corners of the top of the water tank 2, and the limiting blocks are movably abutted against the cover plate 3.

[0062] In a specific implementation, by setting the cover plate 3, as the water in the water tank 2 decreases, the cover plate 3 will slide downward in the water tank 2, so that the cover plate 3 is always in contact with the liquid surface, which is conducive to preventing the water in the water tank 2 from shaking significantly as the water in the water tank 2 decreases. After the water in the water tank 2 is used up, water can be added to the water tank 2 through the water inlet. By connecting a water pipe to the water inlet and injecting water into the water tank 2, the cover plate 3 rises under the action of buoyancy, and the stop block can effectively prevent the cover plate 3 from separating from the water tank 2.

[0063] Working principle of the present invention:

[0064] When the present invention is in use, in the process of planting flue-cured tobacco, ridges will be first formed in the field, and after the ridges are formed, the flue-cured tobacco will be planted. During the planting of flue-cured tobacco, the spacing of the flue-cured tobacco needs to be determined, and the purpose of ridges is to better drain water. When planting flue-cured tobacco, the flue-cured tobacco seedlings are first placed on the placement plate 7, and then sufficient water is added to the water tank 2 to water the flue-cured tobacco seedlings when planting the flue-cured tobacco.

[0065] By placing the conical wheels 5 at the bottom of the two water tanks 2 in the grooves on both sides of the ridge respectively, and then controlling the rectangular column 9 to slide downward, the rectangular column 9 drives the positioning wheel 18 to descend, so that the positioning wheel 18 contacts the top ground of the ridge, and then the device is moved to make the positioning wheel 18 roll on the ridge. During the rolling of the positioning wheel 18, the positioning bucket 20 outside the positioning wheel 18 will press a groove on the ridge, and the position where the flue-cured tobacco should be planted on the ridge is positioned through the groove. During the movement of the device, the next positioning bucket 20 will also contact the ridge and then press a groove on the ridge again. Through the setting of the positioning wheel 18 and the positioning bucket 20, the spacing of the flue-cured tobacco planting can be effectively determined, which is convenient for the subsequent planting of flue-cured tobacco. When planting, the flue-cured tobacco seedlings are taken off the placement plate 7 and then planted in the groove pressed by the positioning bucket 20. After planting, water is poured into the groove through the rubber tube 13 and the nozzle 29.

[0066] In the initial stage of positioning the tobacco seedling planting area on the ridge, an appropriate amount of soil or water is added to the positioning bucket 20 below to increase the weight of the positioning bucket 20 below, so that the positioning bucket 20 can be located directly below the positioning wheel 18. During the descent of the rectangular column 9, the positioning bucket 20 can be kept vertically descending, and then the positioning bucket 20 presses the first groove on the ridge. In the subsequent positioning work, the positioning bucket 20 can also scrape some soil into the positioning bucket 20, which helps to avoid the surrounding soil rolling into the groove after the positioning bucket 20 has positioned the ridge, thereby causing the positioning groove to be difficult to distinguish.

[0067] During the movement of the device, the cone wheel 5 will compact the soil in the grooves on both sides of the ridge. After the soil in the grooves is compacted, on the one hand, it can be more conducive to the drainage efficiency of the grooves. On the other hand, it can also help to avoid the situation where too much soil sticks to the shoes of the tobacco growers due to the soft surrounding soil. Secondly, after the soil in the grooves is compacted, the speed of rainwater penetration can be reduced, thereby improving the drainage capacity of the grooves. In addition, in dry periods, the two ends of the grooves can be blocked by piling up soil, so that rainwater can be retained in the grooves, so that the grooves have a certain water storage capacity. By adding water to the water tank 2, the quality of the device can be effectively improved, and the pressure applied by the cone wheel 5 on the ground can be increased, which is convenient for the cone wheel 5 to compact the soil in the grooves.

[0068] After a flue-cured tobacco plant is planted, the rubber tube 13 is lowered from the winding wheel 22 by pulling the nozzle 29, and then the submersible pump 28 is turned on to irrigate the planted flue-cured tobacco. During the watering process, the submersible pump 28 draws water from the water tank 2, and then transports the water to the connecting pipe 21, and then enters the rubber tube 13 through the guidance of the built-in pipe 24, and finally irrigates the flue-cured tobacco seedlings through the nozzle 29. During the rotation of the winding wheel 22, the rotating ring 23 also rotates on the inner side of the bracket 1.

[0069] After all the flue-cured tobacco is planted, the rectangular column 9 is controlled to rise so that the rectangular column 9 drives the positioning wheel 18 to move upward, and then the positioning wheel 18 is separated from the ridge. As the positioning wheel 18 moves upward, when the positioning wheel 18 moves to the highest point, the second gears 26 at both ends of the rotating shaft 27 of the positioning wheel 18 will mesh with the first gear 25, and then the positioning wheel 18 is manually rotated to rotate. On the one hand, the soil on the positioning wheel 18 can be manually cleaned to achieve the cleaning of the positioning wheel 18, which is conducive to avoiding the corrosion of the positioning wheel 18 due to the adhesion of moist soil to the positioning wheel 18, and on the other hand, it can also The positioning wheel 18 can be rotated to make the second gear 26 rotate accordingly. After the second gear 26 rotates, it will drive the first gear 25 to rotate, and then drive the winding wheel 22 to rotate through the first gear 25. After the winding wheel 22 rotates, it can effectively realize the storage of the rubber tube 13. In the process of storing the rubber tube 13, the support plate 12 can also clean the outer wall of the rubber tube 13 and scrape off the dirt adhered to the outer wall of the rubber tube 13. The nozzle 29 can position the rubber tube 13, and the nozzle 29 will abut against the support plate 12, which is beneficial to avoid the situation where the rubber tube 13 is not supported.

[0070] During the period of planting flue-cured tobacco, if the weather is hot and the sun shines on the tobacco seedlings, it is easy to cause the tobacco seedlings to lose water and die. In addition, during the planting period, since the staff will stop working for a certain period of time during lunch time, the tobacco seedlings will be exposed to the more intense sunlight at noon, which may easily lead to the death of the tobacco seedlings after planting, causing the subsequent seedling replacement work to increase. Through the setting of the photovoltaic panel 10, when the staff adjusts the position of the positioning wheel 18 through the rectangular column 9, the installation axis of the photovoltaic panel 10 at the end away from the connecting frame 32 will move in the bar frame 4 during the lifting process of the rectangular column 9, and the inclination angle of the photovoltaic panel 10 can also be adjusted. By adjusting the position of the photovoltaic panel 10, on the one hand, the photovoltaic panel 10 can be blocked on the top of the placement plate 7, thereby effectively shading the tobacco seedlings on the placement plate 7 inside the bracket 1, which is beneficial to prevent the tobacco seedlings from being dehydrated by the scorching sun. On the other hand, by adjusting the position of the photovoltaic panel 10, the angle between the photovoltaic panel 10 and the sunlight can be adjusted, so that the photovoltaic panel 10 can face the sun, which is beneficial to improve the power generation efficiency of the photovoltaic panel 10, thereby achieving the purpose of quickly charging the battery. Secondly, the power supply of the photovoltaic panel 10 to the battery can also effectively power the submersible pump 28 and the electromagnet 16, without the need for an external power supply, and can achieve a self-sufficient effect.

[0071] By setting the tray 15, the tobacco seedlings can be effectively placed, and in the process of transplanting tobacco, the tobacco seedlings can be effectively transported. In the process of transportation, the electromagnet 16 is energized so that the electromagnet 16 can attract the reinforcing ribs 17, thereby making the tray 15 close to the groove on the top of the placement plate 7, which is beneficial to avoid the tray 15 from sliding due to bumps. Secondly, the reinforcing ribs 17 can also improve the strength of the tray 15, which is beneficial to the recycling of the tray 15, and avoids the tray 15 from being damaged in the process of transplanting tobacco, thereby causing the tobacco seedlings to have nowhere to be placed. During transplanting, the electromagnet 16 is powered off so that the electromagnet 16 no longer magnetically attracts the reinforcing ribs 17, allowing the staff to smoothly remove the tray 15.

[0072] After the flue-cured tobacco is planted, the tobacco seedlings need to be covered with film. In the prior art, the covering usually involves setting up branches on both sides of the ridge in advance, so that the branches are arched to support the film. Through the arrangement of the protrusion 14, during the process of planting the tobacco, the movement of the cone wheel 5 will also cause the protrusion 14 to move. During the movement of the protrusion 14, concave lines will be drawn on both sides of the ridge, and the branches will be positioned using the concave lines, so that the two ends of the branches are respectively inserted into the two concave lines on both sides of the ridge, so as to achieve the purpose of positioning the branches and make the degree of curvature of the arched branches close, which is beneficial to avoid the unevenness of the film after covering, and is beneficial to keep the film flat after covering.

[0073] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention, and these changes and improvements fall within the scope of the present invention claimed.

Claims

1. A flue-cured tobacco-rice-green manure rotation planting method, characterized in that: The planting method specifically comprises the following steps: Step 1: First, sow and raise seedlings of flue-cured tobacco. After the seedlings are raised, transplant the tobacco seedlings onto the ridged fields using a transplanting device, and harvest the tobacco leaves after the flue-cured tobacco matures. Step 2: After the tobacco leaves are harvested, water is applied, the tobacco ridges are tilled with a rotary tiller, the soil is raked, fertilizer is applied, and the field is leveled. Then, the cultivated late rice seedlings are planted in the field and harvested when the late rice is mature. Step 3: Sow the astragalus seeds in the rice field 20-25 days before the rice is harvested in step 2 above. After the late rice is harvested, dig a cross-shaped furrow and turn over and return the seeds to the field after the astragalus is in full bloom in mid-April of the following year. Step 4: After turning over and returning the astragalus, level the field and plant the first-season rice. Harvest the first-season rice in early August and leave the stubble. Irrigate the field with shallow water, with the water surface not exceeding 3 cm. Finally, harvest the regenerated rice after it matures. The transplanting device is used for transplanting flue-cured tobacco seedlings, comprising a support (1), both sides of the support (1) being fixedly connected to a water tank (2), a positioning wheel (18) for positioning the flue-cured tobacco seedlings for transplanting being installed at the center of the support (1) in a lifting manner, both sides of the positioning wheel (18) being drivingly connected to a reeling wheel (22), a rubber tube (13) for watering the flue-cured tobacco seedlings being wound around the reeling wheel (22), the water tank (2) being used for supplying water to the rubber tube (13), both ends of the bottom of the water tank (2) being provided with cone wheels (5), both ends of the support (1) being fixedly connected to a plurality of placement plates (7) for placing the flue-cured tobacco seedlings, and a plurality of trays (15) being placed on both sides of the top of the placement plates (7); Both ends of the cone wheel (5) are rotatably connected to supporting legs (6), one end of the supporting leg (6) away from the cone wheel (5) is fixedly connected to the bottom wall plate of the water tank (2), and the four cone wheels (5) are respectively installed at the two ends of the bottom of the two water tanks (2) through eight supporting legs (6), and the bottom of the supporting leg (6) is provided with a protrusion (14), and the protrusion (14) is used to draw a concave line on the inclined surface of the ridge; A cross bar (31) is fixedly connected to the center of the inner top of the bracket (1), a rectangular column (9) is slidably connected to the cross bar (31), a connecting frame (32) is fixedly connected to the top of the rectangular column (9), the tops of the two rectangular columns (9) are fixed by the connecting frame (32), the positioning wheel (18) is rotatably mounted on the opposite side of the bottom of the two rectangular columns (9), the bottoms of the two rectangular columns (9) are both embedded with bearings, the inner rings of the bearings are sleeved with a rotating shaft (27), the two bearings are rotatably sleeved on both ends of the rotating shaft (27), a plurality of reinforcing rods (30) are fixedly connected to the outer wall at the center of the rotating shaft (27), one end of the reinforcing rod (30) away from the rotating shaft (27) is fixedly connected to the inner wall of the positioning wheel (18), a plurality of connecting rods (19) are fixedly connected to the outer wall of the positioning wheel (18), and one end of the connecting rod (19) away from the positioning wheel (18) is fixedly connected to the positioning bucket (20); The support (1) is provided with a rotating groove on both sides of the inner wall at the center thereof, a rotating ring (23) is rotatably sleeved in the rotating groove, the rotating ring (23) is fixedly connected to one side of the winding wheel (22), a first gear (25) is fixedly connected to the side of the rotating ring (23) away from the winding wheel (22), the bottom of the first gear (25) is meshingly connected to the second gear (26), the two first gears (25) are respectively arranged on the sides of the two winding wheels (22) close to each other, the two ends of the rotating shaft (27) are fixedly connected to the second gear (26), and the two second gears (26) are respectively located on the sides of the two rectangular columns (9) away from each other, when the rectangular column (9) rises to the highest point, the first gear (25) and the second gear (26) are movably meshed, and when the rectangular column (9) descends, the meshing of the first gear (25) and the second gear (26) is disengaged.

2. The flue-cured tobacco-rice-green manure rotation planting method according to claim 1, characterized in that: The pH value of fields where flue-cured tobacco, rice, astragalus and ratoon rice are grown is 5.5 to 6.

5.

3. The flue-cured tobacco-rice-green manure rotation planting method according to claim 1, characterized in that: A submersible pump (28) is fixedly connected to the interior of the water tank (2); the output end of the submersible pump (28) is connected to a connecting pipe (21); one end of the connecting pipe (21) away from the submersible pump (28) is connected to an internal pipe (24); the internal pipe (24) is disposed inside the winding wheel (22); one end of the internal pipe (24) away from the connecting pipe (21) is connected to a rubber tube (13); the rubber tube (13) is wound around the winding wheel (22); a nozzle (29) is provided at one end of the rubber tube (13) away from the internal pipe (24); support plates (12) are fixedly connected to the inner walls on both sides of one end of the bracket (1); the support plates (12) are sleeved on the outer wall of the rubber tube (13).

4. The flue-cured tobacco-rice-green manure rotation planting method according to claim 3, characterized in that: Photovoltaic panels (10) are installed on both sides of the connecting frame (32), and both sides of both ends of the photovoltaic panel (10) are fixedly connected with installation shafts. Both ends of the connecting frame (32) are fixedly connected with extension plates (11), and both ends of the extension plates (11) are provided with rotation grooves. Both sides of the top ends of the bracket (1) are fixedly connected with strip frames (4). Two installation shafts at one end of the photovoltaic panel (10) are rotationally connected to two rotation grooves of the two extension plates (11) located on the same side of the connecting frame (32), and two installation shafts at the other end of the photovoltaic panel (10) are respectively slidably connected to the two strip frames (4) at the same end of the bracket (1). The photovoltaic panel (10) is electrically connected to a battery, and the battery is embedded in the bracket (1). The battery is used to power the submersible pump (28).

5. The method of crop rotation of flue-cured tobacco, rice and green manure according to claim 4, characterized in that: The center of the bottom of both ends of the support (1) is fixedly connected to a mounting frame (8), and a plurality of placement plates (7) are fixedly connected to the mounting frame (8). Grooves are provided on both sides of the top of the placement plates (7), and the tray (15) is placed in the groove. An electromagnet (16) is embedded in the placement plates (7), and an iron reinforcing rib (17) is embedded in the bottom of the tray (15). The electromagnet (16) attracts the reinforcing rib (17) through magnetic force. The electromagnet (16) is also powered by a battery. The photovoltaic panel (10) is also used to provide shade for the flue-cured tobacco seedlings placed in the tray (15).

6. The method of crop rotation of flue-cured tobacco, rice and green manure according to claim 5, characterized in that: A cover plate (3) is provided on the top of the water tank (2), the cover plate (3) is slidably connected in the water tank (2), a handle is fixedly connected at the center of the top of the cover plate (3), a water inlet is provided at one end of the top of the cover plate (3), and limit blocks are fixedly connected at the four corners of the top of the water tank (2), and the limit blocks are movably abutted against the cover plate (3).

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