Green manure crop rotation cultivation device and method for saline-alkali soil improvement

Abstract

The invention provides a green manure crop rotation cultivation device and method for saline-alkali soil improvement, and relates to the technical field of green manure crop cultivation. The green manure crop rotation cultivation device comprises a mounting bracket, a ditching mechanism, a driving mechanism, a watering mechanism and a seeding mechanism; the ditching mechanism comprises two connecting supports fixedly arranged at the bottom of the mounting support, and the opposite sides of the two connecting supports are rotationally connected with a rotating shaft. According to the scheme, a transverse plate moves left and right to drive a pushing frame to intermittently push a valve, water in a water tank is intermittently discharged into a groove through a water outlet pipe, two connecting plates can drive two gear plates to move left and right at the same time in the moving process, so that gears rotate in a reciprocating mode, and the valve is opened. When the gear rotates, the transmission shaft drives the receiving hopper to rotate in a reciprocating manner, so that seeds in the seed box intermittently fall into blocky watering positions in a groove, ditching and irrigation do not need to be performed on saline-alkali soil in advance when the sesbania seeds are planted, the workload of farmers is effectively reduced, and the cultivation efficiency of the sesbania seeds is improved.

Description

Technical Field

[0001] The invention relates to the technical field of green manure crop cultivation, and in particular to a green manure crop rotation cultivation device and method for improving saline-alkali land. Background Art

[0002] The cultivation of green manure crops is a systematic process that requires reasonable planning and management according to different regions, crop types and soil conditions. In the improvement of saline-alkali land, Sesbania, hairy vetch, February orchid or alfalfa are usually selected as green manure crops for rotation. By rotating these green manure crops, the soil structure of saline-alkali land can be effectively improved, soil fertility can be increased, and a good environment can be created for subsequent agricultural production.

[0003] In the related art, the green manure crop rotation for improving saline-alkali land usually adopts the rotation mode of sesbania and sunflower. This rotation mode is to plant sesbania in the first season, then plow and fertilize, and then plant sunflower. Sesbania as green manure can improve soil structure, increase soil fertility, and reduce soil salt accumulation. Sunflower has a high economic value and can grow well in the improved soil, improving the economic benefits of land. However, this rotation mode adopts furrow sowing for sesbania, and it is necessary to dig furrows and irrigate water to wash away the salt before planting. When using existing cultivation equipment to cultivate sesbania in furrow sowing, it is necessary to dig furrows and irrigate the saline-alkali land in advance, which undoubtedly greatly increases the labor of farmers and reduces the cultivation efficiency of sesbania. In addition, this planting method requires a large amount of water, which is a serious waste of water resources.

[0004] Therefore, it is necessary to provide a green manure crop rotation cultivation device and method for improving saline-alkali land to solve the above technical problems. Summary of the invention

[0005] The present invention provides a green manure crop rotation cultivation device and method for improving saline-alkali land, which solves the technical problem that when the existing cultivation device in the related art performs furrow sowing cultivation on sesbania, it is necessary to dig furrows and irrigate the saline-alkali land in advance.

[0006] In order to solve the above technical problems, the green manure crop rotation cultivation device for saline-alkali land improvement provided by the present invention comprises: a mounting bracket, a ditching mechanism, a driving mechanism, a watering mechanism and a sowing mechanism;

[0007] The trenching mechanism comprises two connecting brackets fixedly arranged at the bottom of the mounting bracket, the two connecting brackets are rotatably connected with a rotating shaft on opposite sides, three trenching knife groups are fixedly arranged on the surface of the rotating shaft, a protective cover is fixedly arranged on the inner side of the mounting bracket and on the top of the trenching knife group, and a driving motor for driving the rotating shaft to rotate is arranged on the back side of the rear connecting bracket;

[0008] The driving mechanism comprises two swing frames rotatably connected to the inner sides of the mounting brackets, the two opposite sides of the two swing frames are rotatably connected to two rotating wheels, the bottom of the mounting bracket is fixedly provided with two mounting seats, the two sides of the mounting seats separated are fixedly provided with slide rails, the surfaces of the two slide rails are slidably connected to sliding seats, the right sides of the two sliding seats are fixedly provided with connecting plates, the tops of the two connecting plates are fixedly provided with gear plates, the surface of the rotating shaft is fixedly provided with two rotating convex disks, the sides of the two swing frames separated are provided with first tension springs, the bottom ends of the two first tension springs are respectively fixedly connected to the opposite sides of the two connecting brackets, and the sides of the two connecting plates separated are fixedly provided with protective plates;

[0009] The watering mechanism comprises a base fixedly arranged on one side opposite to the two mounting seats, a water tank is arranged on the top of the base, three water outlet pipes are connected to the bottom of the water tank, valves are arranged on the surfaces of the three water outlet pipes, second tension springs are arranged on the surfaces of the three valves, the top ends of the three second tension springs are fixedly connected to the bottom of the base, a horizontal plate is fixedly arranged on one side opposite to the two connecting plates, and three pushing frames are fixedly arranged on the right side of the horizontal plate;

[0010] The sowing mechanism includes three seed boxes fixedly arranged on the right side of the water tank, the bottom of the three seed boxes are fixedly provided with a discharge hopper, the bottom of the three discharge hoppers are connected with a discharge pipe, the inner sides of the three discharge hoppers are longitudinally rotatably connected with a transmission shaft, the surface of the transmission shaft and the inner sides of the three discharge hoppers are fixedly provided with a receiving hopper, both ends of the transmission shaft are fixedly provided with gears, and the two gears are respectively meshed with the two gear plates.

[0011] Preferably, surfaces of the two rotating wheels at the top are respectively located on the inner sides of the two sliding seats, and surfaces of the two rotating wheels at the bottom are respectively fitted with surfaces of the two rotating convex disks through the first tension springs.

[0012] Preferably, the three water outlet pipes are respectively located on the left side of the three material outlet pipes, the bottom ends of the three water outlet pipes and the material outlet pipes are respectively located on the right side of the three grooving knife groups, the surfaces of the three material receiving hoppers are provided with through grooves, and the bottoms of the inner walls of the three seed boxes are respectively provided with through grooves used in conjunction with the three material receiving hoppers.

[0013] Preferably, a crushing mechanism is fixedly provided on the right side of the top of the mounting bracket, and the crushing mechanism includes a crushing box fixedly provided on the right side of the top of the mounting bracket, the right side of the top of the crushing box is connected to a discharge hopper, and the bottom of the crushing box is connected to three discharge boxes, and a crushing roller is longitudinally rotatably connected to the opposite side of the inner wall of the crushing box, and a plurality of crushing knife groups are fixedly provided on the surface of the crushing roller, a first pulley is fixedly provided at the front end of the rotating shaft, and a second pulley is fixedly provided at the front end of the crushing roller and located on the outside of the crushing box, belts are sleeved on the surfaces of the first pulley and the second pulley, and guide plates are fixedly provided on both sides of the inner wall of the crushing box.

[0014] Preferably, a soil covering mechanism is fixedly provided on the surface of the discharge box, and the soil covering mechanism includes two sliding sleeves fixedly provided on the surface of the discharge box, the inner sides of the two sliding sleeves are slidably connected with connecting rods, and the opposite sides of the two connecting rods are fixedly provided with soil covering plates.

[0015] Preferably, a fertilizing mechanism is fixedly provided on the left side of the mounting bracket, and the fertilizing mechanism includes two fertilizing boxes fixedly provided on the left side of the mounting bracket, the bottoms of the two fertilizing boxes are rotatably connected with fertilizer spreading discs, the tops of the two fertilizer spreading discs are fixedly provided with fertilizer spreading knife groups, the bottoms of the two fertilizer spreading discs are keyway connected with first bevel gears, two mounting baffles are fixedly provided on the left side of the top of the mounting bracket, the opposite sides of the two mounting baffles are rotatably connected with a driving shaft, two second bevel gears are fixedly provided on the surface of the driving shaft, the two second bevel gears are respectively meshed with the two first bevel gears, and a fertilizer spreading motor for driving the driving shaft to rotate is provided on the front side of the front mounting baffle.

[0016] Preferably, a pressing mechanism is fixedly provided on the inner side of the left side of the mounting bracket, and the pressing mechanism includes a truss fixedly provided on the inner side of the left side of the mounting bracket, the inner side of the truss is vertically rotatably connected with a rotating rod, the bottom end of the rotating rod is fixedly provided with a cutting knife group, the top key groove of the rotating rod is connected with a third bevel gear, and a fourth bevel gear is fixedly provided on the surface of the driving shaft, and the fourth bevel gear is meshed with the third bevel gear.

[0017] Preferably, a traction frame is fixedly provided on the left side of the truss, and two rotating seats are fixedly provided on the right side of the bottom of the mounting bracket, and the two rotating seats are rotatably connected to walking wheels on the separated sides.

[0018] A green manure crop rotation cultivation method for saline-alkali land improvement comprises the following steps:

[0019] S1: soil and seed treatments;

[0020] Deeply till the saline-alkali soil and remove weeds;

[0021] Before furrow sowing, immerse the sesbania seeds in 60℃ warm water 3 times the volume of the seeds, stir for 2-3 minutes, cool and dry, or roll them twice with a rice mill, then soak them in 50-60℃ warm water for a day and night, or soak early-maturing hard-grain seeds in 90℃ hot water, then wash them with cold water;

[0022] S2: Planting and cultivation;

[0023] The driving motor drives the rotating shaft and the trenching knife group to rotate, and the trenching knife group is used to trench the saline-alkali soil. When the rotating shaft rotates, it will drive the two rotating convex plates to rotate at the same time. Under the action of the first tension spring, the top of the swing frame will swing back and forth, and the top rotating wheel will drive the sliding seat to slide left and right on the surface of the slide rail. When the sliding seat slides, it will drive the two connecting plates and the cross plate to move left and right. The left and right movement of the cross plate drives the push frame to intermittently push the valve, so that the water in the water tank is intermittently discharged into the groove through the outlet pipe. During the movement, the two connecting plates will simultaneously drive the two gear plates to move left and right, so that the gears rotate back and forth. When the gears rotate, the receiving hopper is driven to rotate back and forth through the transmission shaft, so that the seeds in the seed box intermittently fall into the block watering position in the groove;

[0024] When the device moves, the soil covering plate will be used to cover the sesbania seeds. The rotating shaft will rotate the first pulley, the belt and the second pulley to drive the crushing roller and the crushing knife group to rotate, and the wheat straw will be crushed. The crushed wheat straw will be discharged to the top of the sesbania seeds covered with soil through the discharge box. By covering the wheat straw, the evaporation of soil moisture is reduced, and a physical barrier is formed on the soil surface.

[0025] The driving shaft rotates, and under the cooperation of the first bevel gear and the second bevel gear, the fertilizer spreading disc and the fertilizer spreading knife group are driven to rotate, so that the fertilizer is spread on the surface of the saline-alkali soil to fertilize the saline-alkali soil;

[0026] S3: Sesbania sesbania pressed green;

[0027] The driving shaft rotates, and with the cooperation of the third bevel gear and the fourth bevel gear, the rotating rod and the cutting knife group are driven to rotate, so that the cutting knife group can be used to cut the sesbania from the bottom;

[0028] The blades on the surface of the trenching knife group are removed and replaced with cutting blades, and the belt is removed. The cutting blades are driven to rotate by the rotating shaft and the knife disc through the rotation of the driving motor, so that the cut sesbania is divided into small sections;

[0029] The soil covering mechanism is disassembled, and then the pressing roller is installed on the two walking wheels using a connecting sleeve on the opposite side of the two rotating seats. The movement of the device drives the pressing roller to press the field sesbania cut into small sections, thereby improving the soil structure of the saline-alkali land and facilitating the subsequent planting of sunflowers.

[0030] Compared with the related art, the green manure crop rotation cultivation device and method for saline-alkali land improvement provided by the present invention have the following beneficial effects:

[0031] The two rotating cams are driven to rotate by the rotation of the rotating shaft, and under the action of the first tension spring, the top of the swing frame swings back and forth, and the sliding seat is driven to slide left and right on the surface of the slide rail through the top rotating wheel. When the sliding seat slides, it will drive the two connecting plates and the cross plate to move left and right. The left and right movement of the cross plate drives the push frame to intermittently push the valve, so that the water in the water tank is intermittently discharged into the groove through the outlet pipe. During the movement, the two connecting plates will simultaneously drive the two gear plates to move left and right, so that the gears rotate back and forth. When the gears rotate, the receiving hopper is driven to rotate back and forth through the transmission shaft, so that the seeds in the seed box intermittently fall into the block watering position in the groove. When planting sesbania seeds, there is no need to dig trenches and irrigate saline-alkali land in advance, which effectively reduces the workload of farmers and improves the cultivation efficiency of sesbania seeds. In addition, this method consumes less water and avoids the problem of waste of water resources caused by traditional methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0033] Figure 1 The best structural diagram provided by the present invention;

[0034] Figure 2 A schematic diagram of the structure of the right view provided by the present invention;

[0035] Figure 3 A schematic diagram of the structure of the trenching mechanism and the driving mechanism provided by the present invention;

[0036] Figure 4 for Figure 3 The structural schematic diagram of the swing frame shown;

[0037] Figure 5 A schematic diagram of a state in which the rotating convex plate provided by the present invention rotates to cause the top of the swing frame to swing rightward, so that the sliding seat drives the connecting plate and the gear plate to move rightward on the surface of the slide rail;

[0038] Figure 6 A schematic diagram of the structure of the watering mechanism provided by the present invention;

[0039] Figure 7A schematic diagram of a state in which two connecting plates provided by the present invention drive the horizontal plate and the push frame to move rightward, so that the valve rotates;

[0040] Figure 8 for Figure 7 The enlarged structural diagram of A shown;

[0041] Fig. 9 A structural schematic diagram of the seeding mechanism provided by the present invention;

[0042] Fig.10 for Fig. 9 The schematic diagram of the state in which the connecting plate shown moves to the right, causing the gear to drive the receiving hopper to rotate counterclockwise through the transmission shaft;

[0043] Fig.11 A schematic diagram of the structure of the crushing mechanism provided by the present invention;

[0044] Fig.12 for Fig.11 The schematic structural diagram of the crushing box cross-section shown;

[0045] Fig.13 A schematic diagram of the structure of the soil covering mechanism provided by the present invention;

[0046] Fig.14 A schematic diagram of the structure of the fertilization mechanism provided by the present invention;

[0047] Fig.15 A schematic structural diagram of the green pressing mechanism provided by the present invention.

[0048] Description of Figure Numbers:

[0049] 1. Install the bracket;

[0050] 2. Grooving mechanism; 21. Connecting bracket; 22. Rotating shaft; 23. Grooving knife group; 24. Protective cover; 25. Driving motor;

[0051] 3. Driving mechanism; 31. Swinging frame; 32. Rotating wheel; 33. Mounting seat; 34. Slide rail; 35. Sliding seat; 36. Connecting plate; 37. Gear plate; 38. Rotating convex plate; 39. First tension spring; 310. Protective plate;

[0052] 4. Watering mechanism; 41. Base; 42. Water tank; 43. Water outlet pipe; 44. Valve; 45. Second tension spring; 46. Horizontal plate; 47. Push frame;

[0053] 5. sowing mechanism; 51. seed box; 52. discharge hopper; 53. discharge pipe; 54. transmission shaft; 55. receiving hopper; 56. gear;

[0054] 6. Crushing mechanism; 61. Crushing box; 62. Discharging hopper; 63. Discharging box; 64. Crushing roller; 65. Crushing knife group; 66. First pulley; 67. Second pulley; 68. Belt; 69. Guide plate;

[0055] 7. Soil covering mechanism; 71. Sliding sleeve; 72. Connecting rod; 73. Soil covering plate;

[0056] 8. Fertilizer spreading mechanism; 81. Fertilizer spreading box; 82. Fertilizer spreading plate; 83. Fertilizer spreading knife set; 84. First bevel gear; 85. Mounting baffle; 86. Drive shaft; 87. Second bevel gear; 88. Fertilizer spreading motor;

[0057] 9. Green pressing mechanism; 91. Truss; 92. Rotating rod; 93. Cutting knife group; 94. Third bevel gear; 95. Fourth bevel gear;

[0058] 10. Traction frame; 11. Rotating seat; 12. Traveling wheel.

[0059] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0060] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0061] The invention provides a green manure crop rotation cultivation device and method for improving saline-alkali land.

[0062] First embodiment:

[0063] See also Figures 1 to 10 , a green manure crop rotation cultivation device for saline-alkali land improvement, comprising: a mounting bracket 1, a furrowing mechanism 2, a driving mechanism 3, a watering mechanism 4 and a sowing mechanism 5;

[0064] The trenching mechanism 2 includes two connecting brackets 21 fixedly mounted at the bottom of the mounting bracket 1, and a rotating shaft 22 is rotatably connected to the opposite side of the two connecting brackets 21, and three trenching knife groups 23 are fixedly mounted on the surface of the rotating shaft 22. A protective cover 24 is fixedly mounted on the inner side of the mounting bracket 1 and located on the top of the trenching knife group 23, and a driving motor 25 for driving the rotating shaft 22 to rotate is arranged on the back of the rear connecting bracket 21;

[0065] Please combine Figure 3: Start the driving motor 25, and drive the rotating shaft 22 to rotate by the driving motor 25, and the rotating shaft 22 rotates to drive the trenching knife group 23 to rotate, so that the trenching knife group 23 rotates to trench the saline-alkali soil;

[0066] Preferably, the trenching knife group 23 is composed of a knife disc and a blade, and the knife disc and the blade are connected by bolts, and the blade can be replaced after the bolts are removed;

[0067] The driving mechanism 3 includes two swing frames 31 rotatably connected to the inner side of the mounting bracket 1, and two rotating wheels 32 are rotatably connected to the opposite sides of the two swing frames 31. Two mounting seats 33 are fixedly arranged at the bottom of the mounting bracket 1, and slide rails 34 are fixedly arranged on the separated sides of the two mounting seats 33. The surfaces of the two slide rails 34 are slidably connected to sliding seats 35. The right sides of the two sliding seats 35 are fixedly arranged with connecting plates 36, and the tops of the two connecting plates 36 are fixedly arranged with gear plates 37. Two rotating convex discs 38 are fixedly arranged on the surface of the rotating shaft 22. A first tension spring 39 is provided on the separated sides of the two swing frames 31, and the bottom ends of the two first tension springs 39 are respectively fixedly connected to the opposite sides of the two connecting brackets 21, and a protective plate 310 is fixedly arranged on the separated sides of the two connecting plates 36.

[0068] Please combine Figures 3 to 5 : When the rotating shaft 22 rotates, it drives the two rotating convex plates 38 to rotate. When the rotating convex plates 38 rotate, under the action of the first tension spring 39, the bottom rotating wheel 32 is closely attached to the surface of the rotating convex plates 38, and then the top of the swing frame 31 swings back and forth left and right through the rotation of the rotating convex plates 38. When the swing frame 31 swings left and right, the top rotating wheel 32 drives the sliding seat 35 to slide left and right on the surface of the slide rail 34, and the left and right sliding of the sliding seat 35 drives the connecting plate 36 and the gear plate 37 to move left and right;

[0069] Preferably, the protrusions on the surface of the sliding seat 35 located on both sides of the rotating wheel 32 can be removed. When the bolts inside the protrusions are removed together with the protrusions, when the swing frame 31 drives the top rotating wheel 32 to swing, the position of the sliding seat 35 will not change;

[0070] The watering mechanism 4 includes a base 41 fixedly arranged on one side opposite to the two mounting seats 33, a water tank 42 is arranged on the top of the base 41, and three water outlet pipes 43 are connected to the bottom of the water tank 42, and valves 44 are arranged on the surfaces of the three water outlet pipes 43, and second tension springs 45 are arranged on the surfaces of the three valves 44, and the top ends of the three second tension springs 45 are fixedly connected to the bottom of the base 41, and a horizontal plate 46 is fixedly arranged on one side opposite to the two connecting plates 36, and three push frames 47 are fixedly arranged on the right side of the horizontal plate 46;

[0071] Please combine Figures 6 to 8 : When the two sliding seats 35 drive the two connecting plates 36 to move rightward, the movement of the two connecting plates 36 drives the cross plate 46 and the three pushing frames 47 to move rightward. After the pushing frames 47 move rightward to a certain position, they will contact the handle of the valve 44 and push the handle of the valve 44 to the right, so that the second tension spring 45 is stretched. By rotating the handle of the valve 44, the water in the water tank 42 can be drained through the water outlet pipe 43, and finally the water is discharged into the opened groove through the water outlet pipe 43;

[0072] Furthermore, when the two sliding seats 35 drive the two connecting plates 36 to return to the left, the movement of the two connecting plates 36 drives the horizontal plate 46 and the three pushing frames 47 to move to the left, and the second tension spring 45 is stretched to reset the valve 44 handle, thereby stopping the drainage into the groove;

[0073] Preferably, when the water is discharged into the groove through the outlet pipe 43, the device is in a moving state, so that block-shaped watering positions appear in the groove through the intermittent drainage of the outlet pipe 43;

[0074] The sowing mechanism 5 includes three seed boxes 51 fixedly arranged on the right side of the water tank 42, the bottoms of the three seed boxes 51 are fixedly provided with discharge hoppers 52, the bottoms of the three discharge hoppers 52 are connected with discharge pipes 53, the inner sides of the three discharge hoppers 52 are longitudinally rotatably connected with transmission shafts 54, the surfaces of the transmission shafts 54 and the inner sides of the three discharge hoppers 52 are fixedly provided with receiving hoppers 55, both ends of the transmission shafts 54 are fixedly provided with gears 56, and the two gears 56 are respectively meshed with the two gear plates 37;

[0075] Please combine Fig. 9 and Fig.10 : When the two sliding seats 35 drive the two connecting plates 36 to move rightward, the two connecting plates 36 will simultaneously drive the two gear plates 37 to move rightward, and the movement of the two gear plates 37 will drive the two gears 56 to rotate counterclockwise, and the two gears 56 drive the receiving hopper 55 to rotate counterclockwise through the transmission shaft 54, so that the sesbania seeds in the seed box 51 can fall into the receiving hopper 55;

[0076] Furthermore, when the two sliding seats 35 drive the two connecting plates 36 to reset to the left, the two connecting plates 36 will drive the two gear plates 37 to move to the left, and the movement of the two gear plates 37 will drive the two gears 56 to rotate clockwise. The two gears 56 drive the receiving hopper 55 to rotate clockwise through the transmission shaft 54, so that the field sesame seeds fall into the groove through the discharge hopper 52 and the discharge pipe 53.

[0077] Preferably, when the sesbania seeds are dropped into the groove through the discharge hopper 52 and the discharge pipe 53, the device is in a moving state, so the position of the sesbania seeds when they fall will be located at the block watering position in the groove, and the sesbania seeds are also distributed in a hole shape;

[0078] The surfaces of the two rotating wheels 32 at the top are respectively located at the inner sides of the two sliding seats 35 , and the surfaces of the two rotating wheels 32 at the bottom are respectively fitted with the surfaces of the two rotating convex plates 38 through the first tension springs 39 .

[0079] The three water outlet pipes 43 are respectively located on the left side of the three material discharge pipes 53, and the bottom ends of the three water outlet pipes 43 and the material discharge pipes 53 are respectively located on the right side of the three grooving knife groups 23. The surfaces of the three material receiving hoppers 55 are provided with through grooves, and the bottoms of the inner walls of the three seed boxes 51 are respectively provided with through grooves used in conjunction with the three material receiving hoppers 55.

[0080] In this embodiment, unlike the existing sesbania cultivation device, the present case drives the rotating shaft 22 and the trenching knife group 23 to rotate through the driving motor 25, and then uses the trenching knife group 23 to trench the saline-alkali soil. When the rotating shaft 22 rotates, it will simultaneously drive the two rotating cams 38 to rotate, and under the action of the first tension spring 39, the top of the swing frame 31 will swing back and forth left and right, and the top rotating wheel 32 will drive the sliding seat 35 to slide left and right on the surface of the slide rail 34. When the sliding seat 35 slides, it will drive the two connecting plates 36 and the cross plate 46 to move left and right, and the left and right movement of the cross plate 46 will drive the push frame 47 to intermittently push the valve 44, so that the water in the water tank 42 is intermittently discharged into the groove through the outlet pipe 43, and the two connecting plates 36 will simultaneously drive the two gear plates 37 to move left and right during the movement, so that the gear 56 rotates back and forth, and the gear 56 drives the receiving hopper 55 to rotate back and forth through the transmission shaft 54 ​​when rotating, so that the seeds in the seed box 51 intermittently fall on the block watering position in the groove. When planting sesbania seeds, there is no need to dig trenches and irrigate the saline-alkali land in advance, which effectively reduces the workload of farmers and improves the cultivation efficiency of sesbania seeds. In addition, this method consumes less water and avoids the problem of waste of water resources caused by traditional methods.

[0081] Second embodiment:

[0082] See also Figure 2 , Figures 11 to 13A crushing mechanism 6 is fixedly arranged on the right side of the top of the mounting bracket 1, and the crushing mechanism 6 includes a crushing box 61 fixedly arranged on the right side of the top of the mounting bracket 1, and a discharge hopper 62 is connected to the right side of the top of the crushing box 61, and three discharge boxes 63 are connected to the bottom of the crushing box 61, and a crushing roller 64 is longitudinally rotatably connected to the opposite side of the inner wall of the crushing box 61, and a plurality of crushing knife groups 65 are fixedly arranged on the surface of the crushing roller 64, and a first pulley 66 is fixedly arranged at the front end of the rotating shaft 22, and a second pulley 67 is fixedly arranged at the front end of the crushing roller 64 and located on the outside of the crushing box 61, and a belt 68 is sleeved on the surface of the first pulley 66 and the second pulley 67, and guide plates 69 are fixedly arranged on both sides of the inner wall of the crushing box 61;

[0083] Please combine Figure 2 , Fig.11 and Fig.12 When the rotating shaft 22 drives the trenching knife group 23 to trench the saline-alkali land, the rotating shaft 22 will simultaneously drive the first pulley 66 to rotate, and the first pulley 66 will drive the second pulley 67 to rotate through the belt 68. The rotation of the second pulley 67 will drive the crushing roller 64 and the crushing knife group 65 to rotate. After the wheat straw is put into the crushing box 61 through the discharge hopper 62, the wheat straw is crushed by the rotation of the crushing knife group 65, and the crushed wheat straw will be discharged through the discharge box 63.

[0084] The surface of the discharge box 63 is fixedly provided with a soil covering mechanism 7, and the soil covering mechanism 7 comprises two sliding sleeves 71 fixedly provided on the surface of the discharge box 63, the inner sides of the two sliding sleeves 71 are both slidably connected with connecting rods 72, and the opposite sides of the two connecting rods 72 are both fixedly provided with soil covering plates 73;

[0085] Please combine Fig.13 : When the device moves, it will drive the covering plate 73 to move, and through the movement of the covering plate 73, the soil generated after the trenching is pushed into the trench to cover the sesbania seeds;

[0086] Preferably, the sliding sleeve 71 is connected to the connecting rod 72 via an insert rod, and after the insert rod is pulled out, the connecting rod 72 and the covering plate 73 can be disassembled or the height of the covering plate 73 can be adjusted.

[0087] In this embodiment, when the device moves, it will drive the covering plate 73 to move at the same time, so that the covering plate 73 can be used to push the soil generated by trenching into the trench to cover the field sesame seeds. The first pulley 66, the belt 68 and the second pulley 67 are used to drive the crushing roller 64 and the crushing knife group 65 to rotate through the rotation of the rotating shaft 22, so as to crush the wheat straw. The crushed wheat straw will be discharged to the top of the field sesame seeds after covering with soil through the discharge box 63. By covering the wheat straw, the evaporation of soil moisture is reduced, and a physical barrier is formed on the soil surface, thereby inhibiting the salt from rising to the surface with the moisture, ensuring the smooth germination and growth of the field sesame seeds, and the wheat straw will gradually decompose over time, thereby increasing the content of organic matter in the soil, providing nutrients for the growth of field sesame or sunflower, and increasing the yield of field sesame or sunflower.

[0088] Third embodiment:

[0089] See also Fig.14 and Fig.15 A fertilizing mechanism 8 is fixedly arranged on the left side of the mounting bracket 1, and the fertilizing mechanism 8 includes two fertilizing boxes 81 fixedly arranged on the left side of the mounting bracket 1, and the bottoms of the two fertilizing boxes 81 are rotatably connected with fertilizer spreading discs 82, and the tops of the two fertilizer spreading discs 82 are fixedly arranged with fertilizer spreading knife groups 83, and the bottoms of the two fertilizer spreading discs 82 are keyway-connected with first bevel gears 84, and two mounting baffles 85 are fixedly arranged on the left side of the top of the mounting bracket 1, and the opposite sides of the two mounting baffles 85 are rotatably connected with a driving shaft 86, and the surface of the driving shaft 86 is fixedly provided with two second bevel gears 87, and the two second bevel gears 87 are respectively meshed with the two first bevel gears 84, and a fertilizer spreading motor 88 for driving the driving shaft 86 to rotate is arranged on the front side of the mounting baffle 85 on the front side;

[0090] Please combine Fig.14 : Start the fertilizer spreading motor 88, and the driving shaft 86 is driven to rotate by the fertilizer spreading motor 88, and the driving shaft 86 is driven to rotate by the two second bevel gears 87, and the two first bevel gears 84 are driven to rotate by the two second bevel gears 87, and the two first bevel gears 84 are driven to rotate by the two fertilizer spreading discs 82 and the fertilizer spreading knife group 83, so that the fertilizer is spread on the soil surface without furrows;

[0091] Preferably, through subsequent trenching and soil covering work, the soil covering the surface of the sesbania seeds can be a mixture of soil and fertilizer, which is conducive to the downward decomposition of the fertilizer to provide nutrients to the sesbania seeds. When the first bevel gear 84 is moved upward, the rotation of the second bevel gear 87 will not drive the fertilizer spreading plate 82 to rotate through the first bevel gear 84.

[0092] A pressing mechanism 9 is fixedly arranged on the inner side of the left side of the mounting bracket 1, and the pressing mechanism 9 includes a truss 91 fixedly arranged on the inner side of the left side of the mounting bracket 1, and a rotating rod 92 is vertically rotatably connected to the inner side of the truss 91, and a cutting knife group 93 is fixedly arranged on the bottom end of the rotating rod 92, and a third bevel gear 94 is connected to the top keyway of the rotating rod 92, and a fourth bevel gear 95 is fixedly arranged on the surface of the driving shaft 86, and the fourth bevel gear 95 is meshed with the third bevel gear 94;

[0093] Please combine Fig.15 : When the fertilizer spreading motor 88 rotates, it will also drive the fourth bevel gear 95 to rotate. The fourth bevel gear 95 rotates and then drives the third bevel gear 94 and the rotating rod 92 at the bottom to rotate. The rotation of the rotating rod 92 drives the cutting knife group 93 to rotate. When the sesbania grows to the point where it can be pressed, the rotation of the cutting knife group 93 can cut the sesbania from the bottom, which is convenient for the subsequent pressing work.

[0094] Preferably, the last third bevel gear 94 and the last first bevel gear 84 share a second bevel gear 87 , and after the third bevel gear 94 is moved downward on the surface of the rotating rod 92 , the rotation of the fourth bevel gear 95 will not drive the rotating rod 92 to rotate through the third bevel gear 94 .

[0095] A traction frame 10 is fixedly disposed on the left side of the truss 91 , and two rotating seats 11 are fixedly disposed on the right side of the bottom of the mounting bracket 1 , and the two rotating seats 11 are rotatably connected to the separated sides thereof with walking wheels 12 .

[0096] In this embodiment, by rotating the drive shaft 86, with the cooperation of the first bevel gear 84 and the second bevel gear 87, the fertilizer spreading plate 82 and the fertilizer spreading knife group 83 can be driven to rotate, so that the fertilizer is spread on the surface of the saline-alkali soil. With the cooperation of the third bevel gear 94 and the fourth bevel gear 95, the rotating rod 92 and the cutting knife group 93 can be driven to rotate, so that the cutting knife group 93 can be used to cut the field grass from the bottom, which is convenient for the subsequent green pressing work.

[0097] Please refer to Figures 1 to 15 The working principle of the green manure crop rotation cultivation device for saline-alkali land improvement provided by the present invention is as follows:

[0098] Step S1, using the traction frame 10 to connect the device to the traction mechanism, then put the processed sesbania seeds into the seed box 51, move the device to the planting site through the traction mechanism, drive the motor 25, and drive the rotating shaft 22 to rotate by the driving motor 25, and the rotating shaft 22 drives the furrowing knife group 23 to rotate, so that the furrowing knife group 23 rotates to furrow the saline-alkali soil;

[0099] When the rotating shaft 22 rotates, it drives the two rotating convex plates 38 to rotate. When the rotating convex plates 38 rotate, under the action of the first tension spring 39, the bottom rotating wheel 32 is closely attached to the surface of the rotating convex plates 38, and then the top of the swing frame 31 swings back and forth left and right through the rotation of the rotating convex plates 38. When the swing frame 31 swings left and right, the top rotating wheel 32 drives the sliding seat 35 to slide left and right on the surface of the slide rail 34, and the left and right sliding of the sliding seat 35 drives the connecting plate 36 and the gear plate 37 to move left and right.

[0100] Step S2, when the two sliding seats 35 drive the two connecting plates 36 to move rightward, the movement of the two connecting plates 36 drives the cross plate 46 and the three pushing frames 47 to move rightward, and the pushing frames 47 move rightward to a certain position and contact the valve 44 handle, and push the valve 44 handle to the right, so that the second tension spring 45 is stretched, and the water in the water tank 42 is drained through the water outlet pipe 43 by the rotation of the valve 44 handle, and finally the water is discharged into the opened groove through the water outlet pipe 43;

[0101] When the two sliding seats 35 drive the two connecting plates 36 to return to the left, the movement of the two connecting plates 36 drives the horizontal plate 46 and the three pushing frames 47 to move to the left, and the valve 44 handle is reset by the extension of the second tension spring 45, thereby stopping the drainage into the groove;

[0102] Step S3, when the two sliding seats 35 drive the two connecting plates 36 to move rightward, the two connecting plates 36 will simultaneously drive the two gear plates 37 to move rightward, and the movement of the two gear plates 37 will drive the two gears 56 to rotate counterclockwise, and the two gears 56 drive the receiving hopper 55 to rotate counterclockwise through the transmission shaft 54, so that the sesbania seeds in the seed box 51 can fall into the receiving hopper 55;

[0103] When the two sliding seats 35 drive the two connecting plates 36 to return to the left, the two connecting plates 36 will drive the two gear plates 37 to move left, and the movement of the two gear plates 37 drives the two gears 56 to rotate clockwise, and the two gears 56 drive the receiving hopper 55 to rotate clockwise through the transmission shaft 54, so that the field sesbania seeds pass through the discharge hopper 52 and the discharge pipe 53 and fall into the groove;

[0104] Step S4, when the device moves, it will drive the covering plate 73 to move, and through the movement of the covering plate 73, the soil generated after the trenching is pushed into the trench to cover the sesbania seeds;

[0105] When the rotating shaft 22 drives the trenching knife group 23 to trench the saline-alkali land, the rotating shaft 22 will simultaneously drive the first pulley 66 to rotate, and the first pulley 66 will further drive the second pulley 67 to rotate through the belt 68. The rotation of the second pulley 67 will drive the crushing roller 64 and the crushing knife group 65 to rotate. After the wheat straw is put into the crushing box 61 through the discharge hopper 62, the wheat straw is crushed by the rotation of the crushing knife group 65. The crushed wheat straw will be discharged to the top of the field sesbania seeds after covering with soil through the discharge box 63. By covering the wheat straw, the evaporation of soil moisture is reduced, and a physical barrier is formed on the soil surface.

[0106] Step S5, after the third bevel gear 94 is moved downward on the surface of the rotating rod 92, the fertilizer spreading motor 88 is rotated to drive the driving shaft 86 to rotate, and the driving shaft 86 rotates to drive the two second bevel gears 87 to rotate, and the two second bevel gears 87 rotate to drive the two first bevel gears 84 to rotate, and the two first bevel gears 84 rotate to respectively drive the two fertilizer spreading discs 82 and the fertilizer spreading knife group 83 to rotate, so that the fertilizer is spread on the soil surface without furrows;

[0107] Step S6, when the sesbania needs to be pressed, the first bevel gear 84 is moved upward, and the fourth bevel gear 95 is driven to rotate by the fertilizer spreading motor 88, and the fourth bevel gear 95 drives the third bevel gear 94 and the rotating rod 92 at the bottom to rotate, and the rotation of the rotating rod 92 drives the cutting knife group 93 to rotate, and the rotation of the cutting knife group 93 can cut the sesbania from the bottom, which is convenient for the subsequent pressing work;

[0108] The blades on the surface of the trenching knife group 23 are removed and replaced with cutting blades. The cutting blades are driven to rotate by the rotating shaft 22 and the knife disc through the rotation of the driving motor 25, so that the cut sesbania can be divided into small segments;

[0109] The soil covering mechanism 7 is disassembled, and then the pressing roller is installed on the two walking wheels 12 using a connecting sleeve on the opposite side of the two rotating seats 11. The movement of the device drives the pressing roller to press the field sesbania cut into small sections, thereby improving the soil structure of the saline-alkali land and facilitating the subsequent planting of sunflowers.

[0110] Please refer to Figures 1 to 15 A green manure crop rotation cultivation method for saline-alkali land improvement comprises the following steps:

[0111] S1: soil and seed treatments;

[0112] Deeply till the saline-alkali soil and remove weeds;

[0113] Before furrow sowing, immerse the sesbania seeds in 60℃ warm water 3 times the volume of the seeds, stir for 2-3 minutes, cool and dry, or roll them twice with a rice mill, then soak them in 50-60℃ warm water for a day and night, or soak early-maturing hard-grain seeds in 90℃ hot water, then wash them with cold water;

[0114] S2: Planting and cultivation;

[0115] The driving motor 25 drives the rotating shaft 22 and the trenching knife group 23 to rotate, and the trenching knife group 23 is used to trench the saline-alkali soil. When the rotating shaft 22 rotates, it will drive the two rotating convex plates 38 to rotate at the same time. Under the action of the first tension spring 39, the top of the swing frame 31 is made to swing back and forth, and the top rotating wheel 32 drives the sliding seat 35 to slide left and right on the surface of the slide rail 34. When the sliding seat 35 slides, it will drive the two connecting plates 36 and the cross plate 46 to move left and right. The left and right movement of the cross plate 46 drives the push frame 47 to intermittently push the valve 44, so that the water in the water tank 42 is intermittently discharged into the groove through the outlet pipe 43. During the movement, the two connecting plates 36 will simultaneously drive the two gear plates 37 to move left and right, so that the gear 56 rotates back and forth. When the gear 56 rotates, it drives the receiving hopper 55 to rotate back and forth through the transmission shaft 54, so that the seeds in the seed box 51 intermittently fall into the block watering position in the groove;

[0116] When the device moves, the soil covering plate 73 is used to cover the sesbania seeds. The rotating shaft 22 rotates to drive the crushing roller 64 and the crushing knife group 65 to rotate by the first pulley 66, the belt 68 and the second pulley 67 to crush the wheat straw. The crushed wheat straw is discharged to the top of the sesbania seeds covered with soil through the discharge box 63. By covering the wheat straw, the evaporation of soil moisture is reduced, and a physical barrier is formed on the soil surface.

[0117] The driving shaft 86 rotates, and under the cooperation of the first bevel gear 84 and the second bevel gear 87, the fertilizer spreading disc 82 and the fertilizer spreading knife group 83 are driven to rotate, so that the fertilizer is spread on the surface of the saline-alkali soil to fertilize the saline-alkali soil;

[0118] S3: Sesbania sesbania pressed green;

[0119] The driving shaft 86 rotates, and with the cooperation of the third bevel gear 94 and the fourth bevel gear 95, the rotating rod 92 and the cutting knife group 93 are driven to rotate, so that the cutting knife group 93 can cut the sesbania from the bottom end;

[0120] The blades on the surface of the trenching knife group 23 are removed and replaced with cutting blades, and the belt 68 is removed. The cutting blades are driven to rotate by the rotating shaft 22 and the knife disc through the rotation of the driving motor 25, so as to divide the cut sesbania into small segments;

[0121] The soil covering mechanism 7 is disassembled, and then the pressing roller is installed on the two walking wheels 12 using a connecting sleeve on the opposite side of the two rotating seats 11. The movement of the device drives the pressing roller to press the field sesbania cut into small sections, thereby improving the soil structure of the saline-alkali land and facilitating the subsequent planting of sunflowers.

[0122] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A green manure crop rotation cultivation device for saline-alkali land improvement, characterized in that: include: Install the bracket, trenching mechanism, driving mechanism, watering mechanism and sowing mechanism; The trenching mechanism comprises two connecting brackets fixedly arranged at the bottom of the mounting bracket, the two connecting brackets are rotatably connected with a rotating shaft on opposite sides, three trenching knife groups are fixedly arranged on the surface of the rotating shaft, a protective cover is fixedly arranged on the inner side of the mounting bracket and on the top of the trenching knife group, and a driving motor for driving the rotating shaft to rotate is arranged on the back side of the rear connecting bracket; The driving mechanism comprises two swing frames rotatably connected to the inner sides of the mounting brackets, the two opposite sides of the two swing frames are rotatably connected to two rotating wheels, the bottom of the mounting bracket is fixedly provided with two mounting seats, the two sides of the mounting seats separated are fixedly provided with slide rails, the surfaces of the two slide rails are slidably connected to sliding seats, the right sides of the two sliding seats are fixedly provided with connecting plates, the tops of the two connecting plates are fixedly provided with gear plates, the surface of the rotating shaft is fixedly provided with two rotating convex disks, the sides of the two swing frames separated are provided with first tension springs, the bottom ends of the two first tension springs are respectively fixedly connected to the opposite sides of the two connecting brackets, and the sides of the two connecting plates separated are fixedly provided with protective plates; The watering mechanism comprises a base fixedly arranged on one side opposite to the two mounting seats, a water tank is arranged on the top of the base, three water outlet pipes are connected to the bottom of the water tank, valves are arranged on the surfaces of the three water outlet pipes, second tension springs are arranged on the surfaces of the three valves, the top ends of the three second tension springs are fixedly connected to the bottom of the base, a horizontal plate is fixedly arranged on one side opposite to the two connecting plates, and three pushing frames are fixedly arranged on the right side of the horizontal plate; The sowing mechanism includes three seed boxes fixedly arranged on the right side of the water tank, the bottom of the three seed boxes are fixedly provided with a discharge hopper, the bottom of the three discharge hoppers are connected with a discharge pipe, the inner sides of the three discharge hoppers are longitudinally rotatably connected with a transmission shaft, the surface of the transmission shaft and the inner sides of the three discharge hoppers are fixedly provided with a receiving hopper, both ends of the transmission shaft are fixedly provided with gears, and the two gears are respectively meshed with the two gear plates.

2. The green manure crop rotation cultivation device for saline-alkali land improvement according to claim 1, characterized in that: The surfaces of the two rotating wheels at the top are respectively located at the inner sides of the two sliding seats, and the surfaces of the two rotating wheels at the bottom are respectively fitted with the surfaces of the two rotating convex disks through the first tension springs.

3. The green manure crop rotation cultivation device for saline-alkali land improvement according to claim 1, characterized in that: The three water outlet pipes are respectively located on the left side of the three material outlet pipes, the bottom ends of the three water outlet pipes and the material outlet pipes are respectively located on the right side of the three grooving knife groups, the surfaces of the three material receiving hoppers are provided with through grooves, and the bottoms of the inner walls of the three seed boxes are respectively provided with through grooves used in conjunction with the three material receiving hoppers.

4. The green manure crop rotation cultivation device and method for saline-alkali land improvement according to claim 1, characterized in that: A crushing mechanism is fixedly provided on the right side of the top of the mounting bracket, and the crushing mechanism includes a crushing box fixedly provided on the right side of the top of the mounting bracket, a discharge hopper is connected to the right side of the top of the crushing box, and three discharge boxes are connected to the bottom of the crushing box, a crushing roller is longitudinally rotatably connected to the opposite side of the inner wall of the crushing box, a plurality of crushing knife groups are fixedly provided on the surface of the crushing roller, a first pulley is fixedly provided at the front end of the rotating shaft, a second pulley is fixedly provided at the front end of the crushing roller and located on the outside of the crushing box, belts are sleeved on the surfaces of the first pulley and the second pulley, and guide plates are fixedly provided on both sides of the inner wall of the crushing box.

5. The green manure crop rotation cultivation device for saline-alkali land improvement according to claim 4, characterized in that: A soil covering mechanism is fixedly arranged on the surface of the discharge box, and the soil covering mechanism comprises two sliding sleeves fixedly arranged on the surface of the discharge box, the inner sides of the two sliding sleeves are slidably connected with connecting rods, and the opposite sides of the two connecting rods are fixedly provided with soil covering plates.

6. The green manure crop rotation cultivation device for saline-alkali land improvement according to claim 1, characterized in that: A fertilizing mechanism is fixedly arranged on the left side of the mounting bracket, and the fertilizing mechanism includes two fertilizing boxes fixedly arranged on the left side of the mounting bracket, the bottoms of the two fertilizing boxes are rotatably connected with fertilizer spreading discs, the tops of the two fertilizer spreading discs are fixedly arranged with fertilizer spreading knife groups, the bottoms of the two fertilizer spreading discs are keyway connected with first bevel gears, two mounting baffles are fixedly arranged on the left side of the top of the mounting bracket, the opposite sides of the two mounting baffles are rotatably connected with a driving shaft, two second bevel gears are fixedly arranged on the surface of the driving shaft, the two second bevel gears are respectively meshed with the two first bevel gears, and a fertilizer spreading motor for driving the driving shaft to rotate is arranged on the front side of the front mounting baffle.

7. The green manure crop rotation cultivation device for saline-alkali land improvement according to claim 6, characterized in that: A pressing mechanism is fixedly provided on the inner side of the left side of the mounting bracket, and the pressing mechanism includes a truss fixedly provided on the inner side of the left side of the mounting bracket, and a rotating rod is vertically rotatably connected to the inner side of the truss, a cutting knife group is fixedly provided on the bottom end of the rotating rod, a third bevel gear is connected to the top key groove of the rotating rod, and a fourth bevel gear is fixedly provided on the surface of the driving shaft, and the fourth bevel gear is meshed with the third bevel gear.

8. The green manure crop rotation cultivation device for saline-alkali land improvement according to claim 7, characterized in that: A traction frame is fixedly arranged on the left side of the truss, and two rotating seats are fixedly arranged on the right side of the bottom of the mounting bracket. The two rotating seats are rotatably connected to travel wheels on the separated sides.

9. A green manure crop rotation cultivation method for saline-alkali land improvement, characterized in that: The green manure crop rotation cultivation method is used for the green manure crop rotation cultivation device according to any one of claims 1 to 8, The following steps are involved: S1: soil and seed treatments; Deeply till the saline-alkali soil and remove weeds; Before furrow sowing, immerse the sesbania seeds in 60℃ warm water 3 times the volume of the seeds, stir for 2-3 minutes, cool and dry, or roll them twice with a rice mill, then soak them in 50-60℃ warm water for a day and night, or soak early-maturing hard-grain seeds in 90℃ hot water, then wash them with cold water; S2: Planting and cultivation; The driving motor drives the rotating shaft and the trenching knife group to rotate, and the trenching knife group is used to trench the saline-alkali soil. When the rotating shaft rotates, it will drive the two rotating convex plates to rotate at the same time. Under the action of the first tension spring, the top of the swing frame will swing back and forth, and the top rotating wheel will drive the sliding seat to slide left and right on the surface of the slide rail. When the sliding seat slides, it will drive the two connecting plates and the cross plate to move left and right. The left and right movement of the cross plate drives the push frame to intermittently push the valve, so that the water in the water tank is intermittently discharged into the groove through the outlet pipe. During the movement, the two connecting plates will simultaneously drive the two gear plates to move left and right, so that the gears rotate back and forth. When the gears rotate, the receiving hopper is driven to rotate back and forth through the transmission shaft, so that the seeds in the seed box intermittently fall into the block watering position in the groove; When the device moves, the soil covering plate will be used to cover the sesbania seeds. The rotating shaft will rotate the first pulley, the belt and the second pulley to drive the crushing roller and the crushing knife group to rotate, and the wheat straw will be crushed. The crushed wheat straw will be discharged to the top of the sesbania seeds covered with soil through the discharge box. By covering the wheat straw, the evaporation of soil moisture is reduced, and a physical barrier is formed on the soil surface. The driving shaft rotates, and under the cooperation of the first bevel gear and the second bevel gear, the fertilizer spreading disc and the fertilizer spreading knife group are driven to rotate, so that the fertilizer is spread on the surface of the saline-alkali soil to fertilize the saline-alkali soil; S3: Sesbania sesbania pressed green; The driving shaft rotates, and with the cooperation of the third bevel gear and the fourth bevel gear, the rotating rod and the cutting knife group are driven to rotate, so that the cutting knife group can be used to cut the sesbania from the bottom; The blades on the surface of the trenching knife group are removed and replaced with cutting blades, and the belt is removed. The cutting blades are driven to rotate by the rotating shaft and the knife disc through the rotation of the driving motor, so that the cut sesbania is divided into small sections; The soil covering mechanism is disassembled, and then the pressing roller is installed on the two walking wheels using a connecting sleeve on the opposite side of the two rotating seats. The movement of the device drives the pressing roller to press the field sesbania cut into small sections, thereby improving the soil structure of the saline-alkali land and facilitating the subsequent planting of sunflowers.

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