A saline soil pelleting seed planting apparatus and method of use thereof

By using pelleting seed sowing equipment, seeds are coated with nutrient paste to form pellets, which can then be planted directly in saline-alkali soil. This solves the problems of labor waste and low seed germination rate in saline-alkali soil planting, and achieves high-efficiency seed survival and growth.

CN118679909BActive Publication Date: 2026-06-02INST OF GEOGRAPHICAL SCI & NATURAL RESOURCE RES CAS

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
INST OF GEOGRAPHICAL SCI & NATURAL RESOURCE RES CAS
Filing Date
2024-07-24
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

When planting seeds in saline-alkali land, existing technology requires seedlings to be raised in normal soil and then transplanted to saline-alkali land, which leads to a waste of labor and a cumbersome process, as well as loss rate and low seed germination rate.

Method used

The seed pelleting equipment is used to coat the seeds with nutrient paste to form pellets, which are then planted directly in saline-alkali soil. The nutrient paste isolates the seeds from the stress of saline-alkali soil and provides nutrients and water. The equipment integrates trenching, seed pelleting, and sowing.

Benefits of technology

It improves the survival and germination rate of seeds in saline-alkali soil, reduces labor input, improves work efficiency, avoids salt and alkali stress, and provides seeds with sufficient nutrients and water.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application belongs to the technical field of saline-alkali land planting, and particularly relates to a kind of saline-alkali land pelletized seed sowing equipment and its using method. A kind of saline-alkali land pelletized seed sowing equipment, including frame and the vehicle body of driving frame forward, the frame is provided with ditching shovel, mixing device and roller, the mixing device includes mixing piston pipe, nutrient paste storage tank and seed storage tank at the output end of mixing piston pipe, the mixing piston pipe is also provided with piston assembly, nutrient paste in the lumen of mixing piston pipe has the freedom of extension and contraction by piston assembly, nutrient paste is retracted into mixing piston pipe after adhering seed by piston assembly extension into seed storage tank and wrapping seed. The application utilizes nutrient paste to wrap seed and form pelletization, and then pelletized seed is planted in saline-alkali land, so that seed avoids the stress of saline-alkali land in the growth process, and nutrient paste also provides sufficient nutrients for seed to promote the growth of seed.
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Description

Technical Field

[0001] This invention belongs to the field of saline-alkali land planting technology, specifically relating to a pelletized seed sowing device for saline-alkali land and its usage method. Background Technology

[0002] Seeds are the most vulnerable stage of crop growth. If seeds are planted directly in saline-alkali soil, the germination rate is low. Therefore, when planting crops in saline-alkali soil, seeds are usually raised in normal soil and then transplanted to saline-alkali soil to improve the survival rate of crops in saline-alkali soil.

[0003] However, crop transplanting wastes a lot of manpower and resources, the whole planting process is complicated, it increases the workload of workers, and there will be a certain loss rate during the crop transplanting process. Summary of the Invention

[0004] To address the problems existing in the prior art, this invention provides a pelleted seed sowing device and its method for use in saline-alkali land. The device uses nutrient paste to coat the seeds into pellets, and then plants the pelleted seeds in saline-alkali land. This avoids the stress of saline-alkali land during seed germination, while the nutrient paste provides sufficient nutrients and water to promote seed growth.

[0005] The specific technical solution adopted in this invention is as follows:

[0006] A pelletized seed sowing device for saline-alkali land includes a frame and a vehicle body that drives the frame forward. The frame is sequentially equipped with a furrowing shovel, a mixing device, and a pressing wheel along the forward direction. The mixing device includes a mixing piston tube, a nutrient paste storage tank, and a seed storage tank located at the output end of the mixing piston tube. The output end of the nutrient paste storage tank is connected to the cavity of the mixing piston tube. A piston assembly is also provided on the mixing piston tube. The nutrient paste in the cavity of the mixing piston tube has the freedom of expansion and contraction with the help of the piston assembly. After the nutrient paste extends into the seed storage tank to adhere to the seeds, it retracts into the mixing piston tube to mix and coat the seeds.

[0007] The output end of the mixing piston tube is also provided with a first telescopic cylinder fixedly connected to the frame and a sliding plate connected to the telescopic end of the first telescopic cylinder. The output end of the mixing piston tube is provided with a slide rail flush with the output end of the mixing piston tube. The sliding plate matches the slide rail and has the freedom to move back and forth along the slide rail with the help of the first telescopic cylinder. The sliding plate is provided with parallel material dropping holes and seed bonding holes. The diameter of the material dropping holes is larger than the diameter of the seed bonding holes. The seed storage box is fixedly connected to the sliding plate and the opening of the seed storage box communicates with the seed bonding holes.

[0008] The portion of the slide plate located between the material discharge hole and the seed-binding hole forms a sealing part, and the width of the sealing part is greater than or equal to the inner diameter of the mixing piston tube.

[0009] The frame is also equipped with a seed feeding box, and the output pipe of the seed feeding box is attached to the upper surface of the slide plate.

[0010] The output end of the nutrient paste storage box is also equipped with a one-way valve, through which the nutrient paste in the nutrient paste storage box flows into the cavity of the mixing piston tube.

[0011] The end of the frame is also provided with a film covering mechanism, which includes a film covering roll and a soil covering wheel. The film wrapped on the film covering roll covers the surface of the ditch, and the soil on both sides of the ditch is covered with the film by the soil covering wheel.

[0012] The piston assembly includes a main piston and an auxiliary piston. The main piston is located inside the mixing piston tube, and the side wall of the mixing piston tube is also connected to an auxiliary tube, with the auxiliary piston located inside the auxiliary tube.

[0013] Includes the following steps:

[0014] S1. Prepare the nutritional paste and add it to the nutritional paste storage box;

[0015] S2. The vehicle moves forward and uses a trenching shovel to dig a ditch;

[0016] S3. With the help of the first telescopic cylinder, the seed-adhesive hole of the sliding plate is aligned with the output end of the mixing piston tube. The piston assembly is squeezed inward, and part of the nutrient paste in the mixing piston tube passes through the seed-adhesive hole under the pressure of the piston assembly and extends into the seed storage box to adhere to the seeds.

[0017] S4. The piston assembly is pulled outward, and the nutrient paste with seeds adhering to its surface returns to the mixing piston tube to form a mixture, with the nutrient paste encapsulating the seeds.

[0018] S5. Drive the first telescopic cylinder to align the discharge hole of the sliding vane with the output end of the mixing piston tube. The piston assembly squeezes inward, and the nutrient paste containing the seeds inside the mixing piston tube passes through the discharge hole under the squeezing of the piston assembly.

[0019] S601, drive the first telescopic cylinder to move in the opposite direction so that the sealing part of the sliding plate blocks the output end of the mixing piston tube. During the movement of the sliding plate, cut the nutrient paste that passes through the dropping hole to separate it from the nutrient paste in the mixing piston tube. The nutrient paste falls into the ditch to form pelleted seeds.

[0020] S602, the piston assembly is pulled outward, and the nutrient paste in the nutrient paste storage box flows into the mixing piston tube to form a replenishment;

[0021] S603 When the sealing part of the sliding plate blocks the output end of the mixing piston tube, the output tube of the seed feeding box is aligned with the seed sticking hole, and the seeds in the seed feeding box flow into the seed storage box to form a feeding.

[0022] S7. Cover the ditches filled with pelleted seeds with soil, compact the soil, and cover them with mulch.

[0023] The nutritional paste, by weight, comprises 20-30 parts starch, 30-40 parts hydrogel, 0.2-0.3 parts potassium carboxymethyl cellulose, 1-1.5 parts compound fertilizer, and 15-20 parts water.

[0024] The beneficial effects of this invention are:

[0025] 1. In order to plant the seeds directly in saline-alkali soil, the seeds are pelleted by wrapping them in nutrient paste to form pellets. The pelleted seeds are then planted in the saline-alkali soil. The nutrient paste isolates the seeds from the external saline-alkali soil, thus avoiding the stress of saline-alkali soil during germination. At the same time, the nutrient paste provides the seeds with sufficient nutrients and water to promote seed growth.

[0026] 2. This invention provides a pelleting seed sowing device for saline-alkali land. This device integrates furrowing, seed pelleting, and sowing. When the piston assembly in the mixing piston tube squeezes inward, some nutrient paste extends into the seed storage box and adheres to the seeds. Since the nutrient paste is gel-like, the nutrient paste in the seed storage box and the nutrient paste in the mixing piston tube are integrated. Then, the piston assembly is pulled outward. At this time, the pressure in the mixing piston tube decreases, and the nutrient paste with seeds adhering to it in the seed storage box flows back into the mixing piston tube. The nutrient paste originally located in the mixing piston tube will coat the nutrient paste with seeds adhering to it, thus completely coating the seeds with nutrient paste and forming pellets. Finally, the piston assembly squeezes inward again, and the pelleted seeds are cut by the sliding plate and separated from the nutrient paste in the mixing piston tube before falling into the ditch. The entire seed sowing process is mechanized, greatly improving the work efficiency of workers. Attached Figure Description

[0027] Figure 1 This is a side view of the structure of the present invention;

[0028] Figure 2 This is a top view of the structure of the present invention;

[0029] Figure 3 A schematic diagram of the mixing device used to adhere nutrient paste to seeds.

[0030] Figure 4 A schematic diagram of the mixing device after the nutrient paste adhering to the seeds has been refluxed.

[0031] Figure 5 A schematic diagram of the mixing device during the extrusion of nutrient paste containing seeds;

[0032] Figure 6A schematic diagram of the mixing device when the seed-encapsulated nutrient paste is dispensed.

[0033] Figure 7 This is a schematic diagram of the slider structure;

[0034] In the attached diagram, 1 is the frame, 2 is the trenching shovel, 3 is the pressing wheel, 4 is the mixing piston tube, 5 is the nutrient paste storage box, 6 is the seed storage box, 7 is the first telescopic cylinder, 8 is the sliding plate, 9 is the slide rail, 10 is the material drop hole, 11 is the seed sticking hole, 12 is the sealing part, 13 is the seed replenishment box, 14 is the one-way valve, 15 is the film covering roll, 16 is the soil covering wheel, 17 is the main piston, 18 is the auxiliary piston, 19 is the auxiliary pipe, 20 is the second telescopic cylinder, and 21 is the third telescopic cylinder. Detailed Implementation

[0035] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0036] Specific implementation examples Figure 1-7 As shown, the present invention provides a pelletized seed sowing device for saline-alkali land, including a frame 1 and a vehicle body that drives the frame 1 forward. The frame 1 is provided with a furrowing shovel 2, a mixing device and a pressing wheel 3 arranged sequentially along the forward direction. The mixing device includes a mixing piston tube 4, a nutrient paste storage box 5 and a seed storage box 6 located at the output end of the mixing piston tube 4. The output end of the nutrient paste storage box 5 is connected to the cavity of the mixing piston tube 4. A piston assembly is also provided on the mixing piston tube 4. The nutrient paste in the cavity of the mixing piston tube 4 has the freedom of expansion and contraction with the help of the piston assembly. After the nutrient paste extends into the seed storage box 6 to adhere to the seeds, it retracts into the mixing piston tube 4 to mix and coat the seeds.

[0037] Currently, when planting crops in saline-alkali land, seeds are generally raised in normal soil and then transplanted to saline-alkali land to improve the survival rate of crops in saline-alkali land. However, crop transplanting wastes a lot of manpower and resources, the whole planting process is cumbersome, increases the workload of workers, and a certain loss rate will occur during the crop transplanting process.

[0038] Therefore, in order to directly plant the seeds in saline-alkali soil, the seeds in this invention are pelleted. The seeds are wrapped in nutrient paste to form pellets, and then the pelleted seeds are planted in saline-alkali soil. The nutrient paste isolates the seeds from the external saline-alkali soil, so that the seeds are protected from the stress of saline-alkali soil during germination. At the same time, the nutrient paste will also provide the seeds with sufficient nutrients and water to promote seed growth.

[0039] To improve the efficiency of seed pelleting, this invention provides a pelleting seed sowing device for saline-alkali land. This device integrates furrowing, seed pelleting, and sowing. When the piston assembly inside the mixing piston tube 4 presses inward, as... Figure 3 As shown, some of the nutrient paste will extend into the seed storage box 6 under the pressure of the piston assembly to adhere to the seeds. Since the nutrient paste is gel-like, the nutrient paste in the seed storage box 6 and the nutrient paste in the mixing piston tube 4 are integrated. Then, the piston assembly is pulled outward. At this time, the pressure in the mixing piston tube 4 decreases, and the nutrient paste with seeds adhering to it in the seed storage box 6 will flow back into the mixing piston tube 4. Figure 4 As shown, the nutrient paste originally located inside the mixing piston tube 4 will coat the nutrient paste with seeds adhering to its surface, thus completely encapsulating the seeds and forming them into pellets. Finally, the piston assembly will press inward again, as... Figure 5-6 As shown, the pelleted seeds are cut by the sliding plate 8 and separated from the nutrient paste in the mixing piston tube 4. Then, they fall into the ditch along the through groove on the frame 1. The entire seed sowing process is mechanized, which greatly improves the work efficiency of the workers.

[0040] The output end of the mixing piston tube 4 is also provided with a first telescopic cylinder 7 fixedly connected to the frame 1 and a sliding plate 8 connected to the telescopic end of the first telescopic cylinder 7. A slide rail 9 flush with the output end of the mixing piston tube 4 is provided at the output end of the mixing piston tube 4. The sliding plate 8 matches the slide rail 9 and has the freedom to reciprocate along the slide rail 9 with the aid of the first telescopic cylinder 7. The sliding plate 8 is provided with parallel material dropping holes 10 and seed-adhesive holes 11. The diameter of the material dropping holes 10 is larger than the diameter of the seed-adhesive holes 11. The seed storage box 6 is fixedly connected to the sliding plate 8, and the opening of the seed storage box 6 communicates with the seed-adhesive holes 11. In this invention, the diameter of the material dropping holes 10 is larger than the diameter of the seed-adhesive holes 11. The diameter of the discharge hole 10 is the same as the outlet diameter of the mixing piston tube 4. When the nutrient paste adheres to the seeds through the seed-adhering hole 11, a narrow strip of nutrient paste is formed to adhere to a small number of seeds. Then, it returns to the mixing piston tube 4 with the help of the piston assembly. At this time, there is always nutrient paste in the mixing piston tube 4 around the seed-adhering hole 11. This part of the nutrient paste will coat the nutrient paste adhering to the seeds, so that the seeds are completely coated with nutrient paste and formed into pellets. Then, the slider 8 slides and aligns the discharge hole 10 with the mixing piston tube 4. At this time, the seeds in the mixing piston tube 4 have formed pellets with the nutrient paste. The pelleted seeds can then fall through the large-diameter discharge hole 10. In addition, the slider 8 is relatively thin and can be used as a cutter to divide the nutrient paste.

[0041] The portion of the sliding plate 8 located between the material discharge hole 10 and the seed-adhesive hole 11 forms a sealing part 12. The width of the sealing part 12 is greater than or equal to the inner diameter of the mixing piston tube 4. The sealing part 12 of the sliding plate 8 can block the mixing piston tube 4. When nutrient paste is fed into the mixing piston tube 4, it prevents outside air from being sucked into the mixing piston tube 4, ensuring that a negative pressure is formed inside the mixing piston tube 4. This allows the nutrient paste in the nutrient paste storage box 5 to be sucked into the mixing piston tube 4 under the action of negative pressure to form a replenishment.

[0042] The frame 1 is also equipped with a seed feeding box 13. The output pipe of the seed feeding box 13 is attached to the upper surface of the slide plate 8. When the mixing piston pipe 4 is in the feeding state, the output pipe of the seed feeding box 13 is aligned with the seed-adhesive hole 11. The seeds in the seed feeding box 13 will enter the seed storage box 6 along the seed-adhesive hole 11 to form a feeding.

[0043] The output end of the nutrient paste storage tank 5 is also equipped with a one-way valve 14. The nutrient paste in the nutrient paste storage tank 5 flows into the cavity of the mixing piston tube 4 via the one-way valve 14. By setting the one-way valve 14, pressure changes in the mixing piston tube 4 are prevented from causing the nutrient paste to flow back into the nutrient paste storage tank 5. Figure 1 To clearly show the one-way valve, the fixing structure of the second telescopic cylinder 20 is hidden.

[0044] The end of the frame 1 is also provided with a film covering mechanism, which includes a film covering roll 15 and a soil covering wheel 16. The film wrapped on the film covering roll 15 covers the surface of the ditch. The soil on both sides of the ditch is covered with the film by the soil covering wheel 16. The frame is also provided with a through groove for the film to pass through. The film can prevent the evaporation of water in the soil, thereby delaying soil salinization.

[0045] The piston assembly includes a main piston 17 and an auxiliary piston 18. The main piston 17 is located inside the mixing piston tube 4, and the side wall of the mixing piston tube 4 is also connected to an auxiliary tube 19. The auxiliary piston 18 is located inside the auxiliary tube 19, and the diameter of the main piston 17 is larger than the diameter of the auxiliary piston 18. The main piston 17 and the auxiliary piston 18 are driven by a second telescopic cylinder 20 and a third telescopic cylinder 21, respectively.

[0046] This invention also provides a method for using a pelletized seed sowing device for saline-alkali land, comprising the following steps:

[0047] S1. Prepare the nutritional paste and add it to the nutritional paste storage box;

[0048] S2. The vehicle moves forward and uses the trenching shovel 2 to dig a ditch;

[0049] S3, such as Figure 3 As shown, the first telescopic cylinder 7 is used to align the seed-adhesive hole 11 of the sliding plate 8 with the output end of the mixing piston tube 4. The piston assembly is squeezed inward, and part of the nutrient paste in the mixing piston tube 4 passes through the seed-adhesive hole 11 and extends into the seed storage box 6 to adhere to the seeds under the pressure of the piston assembly.

[0050] S4, such as Figure 4 As shown, the piston assembly is pulled outwards, and the nutrient paste with seeds adhering to its surface returns to the mixing piston tube 4 to form a mixture, with the nutrient paste encapsulating the seeds.

[0051] S5, such as Figure 5 As shown, the first telescopic cylinder 7 is driven to align the discharge hole 10 of the slide plate 8 with the output end of the mixing piston tube 4. The piston assembly squeezes inward, and the nutrient paste containing seeds inside the mixing piston tube 4 passes through the discharge hole 10 under the squeezing of the piston assembly.

[0052] S601, such as Figure 6 As shown, the first telescopic cylinder 7 is driven to move in the opposite direction so that the sealing part 12 of the sliding plate 8 blocks the output end of the mixing piston tube 4. During the movement of the sliding plate 8, the nutrient paste passing through the discharge hole 10 is cut to separate it from the nutrient paste in the mixing piston tube 4. The nutrient paste falls into the ditch to form pelleted seeds.

[0053] S602, such as Figure 6 As shown, the piston assembly is pulled outwards, and the nutrient paste in the nutrient paste storage tank flows into the mixing piston tube 4 to form a replenishment;

[0054] S603, such as Figure 6 As shown, when the sealing part 12 of the sliding plate 8 blocks the output end of the mixing piston tube 4, the output tube of the seed feeding box 13 is aligned with the seed sticking hole 11, and the seeds in the seed feeding box 13 flow into the seed storage box 6 to form a feeding.

[0055] S7. Cover the ditches filled with pelleted seeds with soil, compact the soil, and cover them with mulch.

[0056] In step S, since only a small amount of nutrient paste needs to be squeezed out to adhere to the seeds, the main piston 17 does not work, and the auxiliary piston 18 squeezes inward. However, in step S, the amount of nutrient paste squeezed out is large, so the main piston 17 and the auxiliary piston 18 squeeze inward simultaneously.

[0057] The nutrient paste, by weight, comprises 20-30 parts starch, 30-40 parts hydrogel, 0.2-0.3 parts potassium carboxymethyl cellulose, 1-1.5 parts compound fertilizer, and 15-20 parts water. The nutrient paste of this invention also has a water-retaining effect. Furthermore, the main component of the nutrient paste is a biodegradable material, avoiding impact on the physical and chemical properties of the soil and preventing exacerbation of salinization.

Claims

1. A pelletized seed sowing device for saline-alkali land, comprising a frame (1) and a vehicle body for driving the frame (1) forward, wherein the frame (1) is sequentially provided with a furrowing shovel (2), a mixing device, and a pressing wheel (3) along the forward direction, characterized in that, The mixing device includes a mixing piston tube (4), a nutrient paste storage box (5), and a seed storage box (6) located at the output end of the mixing piston tube (4). The output end of the nutrient paste storage box (5) is connected to the cavity of the mixing piston tube (4). The mixing piston tube (4) is also provided with a piston assembly. The nutrient paste in the cavity of the mixing piston tube (4) has the freedom to stretch and contract with the help of the piston assembly. The nutrient paste extends into the seed storage box (6) with the help of the piston assembly, adheres to the seeds, and then retracts back into the mixing piston tube (4) to mix and wrap the seeds. The output end of the mixing piston tube (4) is also provided with a first telescopic cylinder (7) fixedly connected to the frame (1) and a sliding plate (8) connected to the telescopic end of the first telescopic cylinder (7). The output end of the mixing piston tube (4) is provided with a slide rail (9) flush with the output end of the mixing piston tube (4). The sliding plate (8) matches the slide rail (9) and has the freedom to move back and forth along the slide rail (9) with the help of the first telescopic cylinder (7). The sliding plate (8) is provided with parallel dropping holes (10) and seed-sticking holes (11). The diameter of the dropping holes (10) is larger than the diameter of the seed-sticking holes (11). The seed storage box (6) is fixedly connected to the sliding plate (8) and the opening of the seed storage box (6) is connected to the seed-sticking holes (11). The frame (1) is also provided with a seed feeding box (13), and the output pipe of the seed feeding box (13) is attached to the upper surface of the slide plate (8).

2. The pelletized seed sowing equipment for saline-alkali land according to claim 1, characterized in that, The portion of the slide (8) located between the material discharge hole (10) and the seed-binding hole (11) is formed as a sealing part (12), the width of which is greater than or equal to the inner diameter of the mixing piston tube (4).

3. The pelletized seed sowing equipment for saline-alkali land according to claim 1, characterized in that, The output end of the nutrient paste storage box (5) is also equipped with a one-way valve (14), and the nutrient paste in the nutrient paste storage box (5) is connected to the cavity of the mixing piston tube (4) by means of the one-way valve (14).

4. The pelletized seed sowing equipment for saline-alkali land according to claim 1, characterized in that, The frame (1) is also provided with a film covering mechanism at its end. The film covering mechanism includes a film covering roll (15) and a soil covering wheel (16). The film wrapped on the film covering roll (15) covers the surface of the ditch, and the soil on both sides of the ditch is covered with the film by means of the soil covering wheel (16).

5. The pelletized seed sowing equipment for saline-alkali land according to claim 1, characterized in that, The piston assembly includes a main piston (17) and an auxiliary piston (18). The main piston (17) is located inside the mixing piston tube (4). The side wall of the mixing piston tube (4) is also connected to an auxiliary tube (19). The auxiliary piston (18) is located inside the auxiliary tube (19).

6. A method of using a pelletized seed sowing device for saline-alkali land as described in claim 1, characterized in that, Includes the following steps: S1. Prepare the nutritional paste and add it to the nutritional paste storage box; S2, the vehicle moves forward and uses the trenching shovel (2) to dig a ditch; S3. With the help of the first telescopic cylinder (7), the seed-sticking hole (11) of the sliding plate (8) is aligned with the output end of the mixing piston tube (4). The piston assembly is squeezed inward, and part of the nutrient paste in the mixing piston tube (4) passes through the seed-sticking hole (11) and extends into the seed storage box (6) to adhere to the seeds under the pressure of the piston assembly. S4. The piston assembly is pulled outward, and the nutrient paste with seeds adhering to its surface returns to the mixing piston tube (4) and forms a mixture, with the nutrient paste encapsulating the seeds. S5. Drive the first telescopic cylinder (7) to align the discharge hole (10) of the slide plate (8) with the output end of the mixing piston tube (4). The piston assembly squeezes inward, and the nutrient paste containing the seeds in the mixing piston tube (4) passes through the discharge hole (10) under the squeezing of the piston assembly. S601, drive the first telescopic cylinder (7) to move in the opposite direction so that the sealing part (12) of the sliding plate (8) blocks the output end of the mixing piston tube (4). During the movement of the sliding plate (8), cut the nutrient paste that passes through the dropping hole (10) to separate it from the nutrient paste in the mixing piston tube (4). The nutrient paste falls into the ditch to form pelleted seeds. S602, the piston assembly is pulled outward, and the nutrient paste in the nutrient paste storage box flows into the mixing piston tube (4) to form a replenishment; When the sealing part (12) of the sliding plate (8) blocks the output end of the mixing piston tube (4), the output tube of the seed feeding box (13) is aligned with the seed sticking hole (11), and the seeds in the seed feeding box (13) flow into the seed storage box (6) to form a feed. S7. Cover the ditches filled with pelleted seeds with soil, compact the soil, and cover them with mulch.

7. The method of using the pelletized seed sowing equipment for saline-alkali land according to claim 6, characterized in that, The nutritional paste, by weight, comprises 20-30 parts starch, 30-40 parts hydrogel, 0.2-0.3 parts potassium carboxymethyl cellulose, 1-1.5 parts compound fertilizer, and 15-20 parts water.