A method and equipment for drought-resistant, thinning-free precision sowing of dryland millet

Abstract

This invention belongs to the field of millet planting methods, specifically relating to a drought-resistant, thinning-free precision sowing method and equipment for dryland millet. The sowing method includes the following steps: leveling the field soil after rotary tillage; applying adhesive along the soil-facing side of the mulch film to be laid, forming a set of spaced-apart adhesive rings, each containing spaced-apart adhesive points; adhering the millet seeds to the adhesive points; laying the mulch film, covering it with soil on both sides to form a retaining wall; then hammering the areas with adhesive rings on the mulch film, and piercing along the adhesive rings and in the middle of the adhesive rings to form grooves with water inlets in the center; the rows of adhesive rings form a planting strip, completing the sowing process. This method ensures successful millet emergence without increasing the seed quantity, achieving precision sowing, eliminating the need for thinning, and exhibiting good drought resistance.

Description

Technical Field

[0001] This invention belongs to the field of millet planting methods, specifically relating to a method and equipment for drought-resistant, thinning-free precision sowing of dryland millet. Background Technology

[0002] Millet is a small-grained crop with poor emergence ability. To ensure a sufficient germination rate, dense planting and row sowing are usually adopted. After emergence, excess seedlings need to be thinned manually, which is time-consuming, labor-intensive, and wastes millet seeds and water and fertilizer resources. This is especially true in arid areas where freshwater resources are scarce, where the growth of excess seedlings wastes the already scarce freshwater. On the other hand, how to carry out drought relief work in arid areas to ensure the normal growth of millet is also a problem that needs to be solved by those skilled in the art. Summary of the Invention

[0003] To address the problems existing in the prior art, this invention provides a drought-resistant precision sowing method and equipment for dryland millet that eliminates the need for thinning. This method ensures successful emergence of millet seedlings without increasing the sowing amount, achieves precision sowing, eliminates the need for thinning, and exhibits good drought resistance, fully utilizes water resources, reduces water waste, and ensures normal growth of millet.

[0004] The specific technical solution adopted in this invention is as follows:

[0005] A drought-resistant, thinning-free precision sowing method for dryland millet, the key of which includes the following steps:

[0006] S1. Level the soil in the field after rotary tillage;

[0007] S2. Apply adhesive along the soil-facing side of the mulch film to be laid, so that the adhesive forms a set of spaced bonding rings on the soil-facing side, wherein the bonding rings include bonding points arranged sequentially and spaced along the outline of the bonding rings.

[0008] S3. The rice seeds are stuck together by the adhesive points on the plastic film;

[0009] S4. Lay the mulch film with the soil-facing side facing the ground in the field. Cover the mulch film with soil on both sides to form a retaining wall. Then, hammer the part of the mulch film with the adhesive rings and puncture along the outline of the adhesive rings and in the middle of the adhesive rings to form a groove with a water inlet hole in the middle of the adhesive rings. A planting strip is formed between the adhesive rings set in the row to complete the sowing.

[0010] The row spacing between the planting strips is 35-50cm, and the planting strips are arranged with equal row spacing or with wide and narrow rows.

[0011] A sowing device for implementing the above-mentioned precision sowing method for drought-resistant millet without thinning, includes a frame, a film spreading roller, a glue coating roller, a seed feeding unit, a soil covering unit, and a hammer pressing unit arranged sequentially on the frame along the direction of film conveying. The glue coating roller has a set of glue outlets arranged in a circular array along the circumference of the glue coating roller, forming a ring structure. The glue outlets include a set of glue outlets spaced apart along the outline of the ring structure. The glue coating roller applies glue to the soil-adhering side of the film through the glue outlets to form adhesive points. The seed feeding unit provides millet seeds to the film and adheres the millet seeds to the adhesive points on the soil-adhering side.

[0012] The seed delivery unit includes a seed bin, a lifting rod that matches the bonding point, and an air blowing unit connected to the lifting rod. The lifting rod is connected to the seed bin and has the freedom to move up and down within the seed bin. When the mulch film passes through the seed delivery unit, the soil-adhering side is facing downwards. The lifting rod is a hollow tubular structure, and a seed tray is provided at the end of the lifting rod. The air blowing unit is connected to the lifting rod and drives the seeds on the seed tray to be thrown upwards and adhered to the bonding point.

[0013] The coating roller is located above the mulch film, and the seed delivery unit is located below the mulch film. A reversing roller is provided between the coating roller and the seed delivery unit. After the mulch film is unfolded by the film spreading roller, the soil-contact side is set upwards, and after the mulch film passes the reversing roller, the soil-contact side is set downwards.

[0014] The seed tray mentioned is a rubber tray.

[0015] The hammer pressing unit includes a rotating wheel and a pressing hammer arranged on the rotating wheel in a circumferential direction. The lower end of the pressing hammer is provided with a piercing rod spaced along the contour of the bonding ring and a piercing protrusion corresponding to the center of the bonding ring.

[0016] The soil covering unit includes a set of soil covering discs respectively disposed on both sides of the mulch film.

[0017] The beneficial effects of this invention are:

[0018] This invention employs a method of coating the soil-facing side of the mulch film with an adhesive, creating a set of bonding points on the soil-facing side. These bonding points adhere the rice seeds, controlling the sowing amount and achieving precision sowing. Multiple spaced bonding rings are formed between the bonding points, meaning the rice seeds are arranged in a ring shape. The mulch film is laid and hammered to ensure contact between the seeds and the soil, creating multiple holes in the soil and the mulch film to facilitate seed germination. Water inlet holes are pierced in the center of the bonding rings on the mulch film. The soil covering both sides of the mulch film forms a retaining wall, with the bonding rings positioned between these two retaining walls. The retaining walls and the mulch film work together to form furrows. Water accumulated in the furrows can enter through the water inlet holes and be absorbed by the soil surrounding the rice seeds, improving water utilization and reducing water waste. Attached Figure Description

[0019] Figure 1 This is a top view of the seeder used in this invention;

[0020] Figure 2 A diagram showing the state of a seeder laying mulch film from the main viewpoint;

[0021] Figure 3 for Figure 2 A magnified schematic diagram of part A in the middle;

[0022] Figure 4 This is an isometric view of the coating roller;

[0023] Figure 5 This is the main view of the seed delivery unit;

[0024] Figure 6 for Figure 5 A sectional view along the BB direction;

[0025] Figure 7 This is a schematic diagram of the assembly of the upper support roller and the lower support roller;

[0026] Figure 8 This is a diagram showing the state of the plastic film after it has passed through the coating roller.

[0027] In the attached diagram, 1 is the plastic film, 2 is the soil-adhering side, 3 is the bonding ring, 4 is the bonding point, 5 is the film spreading roller, 6 is the glue-applying roller, 7 is the seed delivery unit, 8 is the soil covering unit, 9 is the hammer pressing unit, 10 is the glue outlet, 11 is the glue outlet point, 12 is the seed bin, 13 is the lifting rod, 14 is the air blowing unit, 15 is the seed tray, 16 is the rotating wheel, 17 is the pressing hammer, 18 is the piercing protrusion, 19 is the reversing roller, 20 is the piercing rod, 21 is the upper support roller, and 22 is the lower support roller. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0029] Example 1, a method for drought-resistant, thinning-free precision sowing of millet in dryland farming, the key features of which include the following steps:

[0030] S1. Level the soil in the field after rotary tillage to improve the flatness of the field surface;

[0031] S2. Apply adhesive along the soil-facing side 2 of the mulch film 1 to be laid, so that the adhesive forms a set of spaced bonding rings 3 on the soil-facing side 2. The bonding rings 3 include bonding points 4 arranged sequentially and spaced along the outline of the bonding rings 3. The adhesive can be starch glue, which is inexpensive, non-toxic and water-soluble, and does not affect the normal germination of the grain seeds.

[0032] Each bonding ring 3 can be provided with 2-6 bonding points 4, which are arranged in a circular array on the bonding ring 3; by controlling the diameter of the bonding points 4, each bonding point 4 can only bond one grain seed.

[0033] S3. The rice seeds are attached by the adhesive points 4 on the mulch film 1. Each adhesive point 4 can attach one rice seed. The rice seeds are set along the adhesive ring 3 on the mulch film 1 with the help of the adhesive points 4, forming multiple spaced sowing rings. The number of rice seeds sown and the spacing between the rice seeds can be effectively controlled by the adhesive points 4.

[0034] S4. Lay the mulch film 1 with the soil-facing side 2 facing the ground in the field. Cover the mulch film 1 with soil on both sides to form a retaining wall. Then, hammer the part of the mulch film 1 with the adhesive rings 3, and puncture along the outline of the adhesive rings 3 and in the middle of the adhesive rings 3. Puncture along the adhesive rings 3 can press the seeds on the adhesive rings 3 into the soil and make holes in the soil and mulch film to facilitate the germination of the rice seeds. It can make the mulch film 1 arch out when the sowing rate and the seedling rate are the same, that is, the rice seedlings emerge smoothly. After emergence, the gap between the rice seedlings meets the growth needs of the rice, and there is no need to thin the seedlings. Puncture in the middle of the adhesive rings 3 can form a groove at the adhesive rings 3 with a water inlet hole in the middle of the groove. The adhesive rings 3 set along the row form a planting strip, and the sowing is completed. The retaining walls on both sides form furrows on the plastic film 1, which facilitates water retention. Rainwater and irrigation water in the furrows enter the soil below the plastic film 1 through the water inlet holes and are absorbed by the soil around the grain seeds, making full use of the water and thus achieving drought-resistant sowing.

[0035] There is no soil covering above the mulch film 1 corresponding to the bonding ring 3, which reduces the pressure on the millet seeds and is conducive to seedling emergence. On the other hand, the overall performance of the punctured mulch film is greatly weakened and puncture holes are formed on it. After the hammer pressing is completed, the soil falls back and only the fallen loose soil covers the seeds. It is easy for the millet seedlings to push out of the soil and push out of the mulch film along the puncture holes. The millet seedlings can emerge smoothly without increasing the sowing amount.

[0036] In this embodiment, the planting strips are evenly spaced, and the row spacing between the planting strips is 45cm.

[0037] This drought-resistant, thinning-free precision sowing method for dryland millet is implemented using a sowing device, such as... Figure 1 , Figure 4As shown, the sowing equipment includes a frame, a film spreading roller 5, a glue coating roller 6, a seed feeding unit 7, a soil covering unit 8, and a hammer pressing unit 9 arranged sequentially on the frame along the conveying direction of the mulch film. The glue coating roller 6 is provided with a set of glue outlets 10 arranged in a circular array along the circumference of the glue coating roller 6, forming a ring structure. The glue outlets 10 include a set of glue outlets 11 spaced along the outline of the ring structure. The glue coating roller 6 applies glue liquid to the soil-adhering side 2 of the mulch film 1 through the glue outlets 11 to form adhesive points 4. The seed feeding unit 7 provides seeds to the mulch film 1 and makes the seeds adhere to the adhesive points 4 on the soil-adhering side 2.

[0038] A reversing roller 19 is provided between the glue-applying roller 6 and the seed-feeding unit 7.

[0039] like Figure 2 , Figure 3 , Figure 8 As shown, during operation, the film spreading roller 5 unfolds the mulch film 1. The soil-adhering side 2 of the mulch film 1 is set upwards when the film spreading roller 5 unfolds. The glue coating roller 6 is located above the mulch film 1. The glue coating roller 6 rotates as the mulch film 1 unfolds. The glue outlet 10 on the glue coating roller 6 contacts the soil-adhering side 2 of the mulch film 1 in sequence. The glue discharged from the glue outlet 11 forms bonding points 4 on the soil-adhering side 2. Multiple bonding rings 3 are formed between the bonding points 4. Then, the mulch film 1 is reversed by the reversing roller 19 so that the soil-adhering side 2 with bonding rings 3 is set towards the ground and passes above the seed delivery unit 7.

[0040] like Figure 5 , Figure 6 As shown, the seed delivery unit 7 includes a seed bin 12, a lifting rod 13, and an air blowing unit 14 connected to the lifting rod 13. In this embodiment, the air blowing unit 14 is an air pump and an air pipe. The air pump is connected to the lifting rod 13 via the air pipe. The lifting rod 13 is connected to the seed bin 12 and has the freedom to move up and down within the seed bin 12. The lifting rod 13 is a hollow tubular structure. A seed tray 15 is provided at the end of the lifting rod 13. The seed tray 15 is a rubber tray. In the initial state, the bottom of the seed tray 15 is concave downwards to support the seeds and prevent them from falling. When the lifting rod 13 is raised, the seed tray 15 supports the seeds and causes them to rise. The air blowing unit 14 is connected to the lifting rod 13. When the seed tray 15 approaches the soil-contacting side 2, the air blowing unit 14 blows air into the lifting rod 13, causing the seed tray 15 to bulge outwards and throw the seeds upwards. The seeds come into contact with the bonding point 4 and form an adhesion. Excess seeds fall back into the seed bin 12 under their own gravity. One adhesive ring 3 can correspond to one larger lifting rod 13, or one adhesive ring 3 can correspond to multiple lifting rods 13, that is, one adhesive point 4 corresponds to a smaller lifting rod 13. In this embodiment, one adhesive ring 3 corresponds to multiple lifting rods 13.

[0041] As a further improvement, the seed bin 12 has a chamfered bottom edge. The inner cavity of the seed bin 12 has a structure that is larger at the top and smaller at the bottom due to the chamfer. The seeds in the seed bin 12 slide down to the bottom along the slope formed by the chamfer and gather together. The lifting rods 13 are all set in the bottom plane of the inner cavity of the seed bin 12 to prevent the lifting rods 13 from being unloaded.

[0042] As a further improvement, such as Figure 2 , Figure 7 As shown, an upper support roller 21 and a lower support roller 22 are also provided behind the seed delivery unit 7. The lower support roller 22 avoids the bonding point 4 and contacts both sides of the mulch film 1. The upper support roller 21 and the lower support roller 22 work together to clamp the mulch film 1 and transport it, preventing the mulch film 1 from tilting and causing the seeds to collide with the lower support roller 22 and fall off. At the same time, it can ensure that the mulch film 1 is in a horizontal state when passing through the seed delivery unit 7, and the seeds can effectively contact the bonding point 4 to achieve adhesion.

[0043] Subsequently, the plastic film 1 is laid on the ground in the field. The soil covering unit 8 includes a set of soil covering pans respectively set on both sides of the plastic film 1. The soil covering pans walk on the position where the plastic film 1 is not laid and cover the soil on both sides of the plastic film 1 to initially fix it and prevent the plastic film 1 from being lifted. The soil forms two rows of retaining walls on both sides of the plastic film 1, and a furrow is formed between the retaining walls.

[0044] Finally, the bonding ring 3 is hammered by the hammering unit 9, such as... Figure 2 As shown, the hammer pressing unit 9 includes a rotating wheel 16 and a pressing hammer 17 arranged circumferentially on the rotating wheel 16. The lower end of the pressing hammer 17 is provided with piercing rods spaced along the bonding rings 3 and piercing protrusions 18 corresponding to the center of the bonding rings 3. The piercing rods 20 are matched with the bonding points 4. The cam 16 moves, causing the hammer 17 to descend when it passes above the bonding rings 3, pressing the bonding rings 3 of the mulch film 1 downwards. The seeds adhered to the bonding rings 3 form a tight contact with the soil, while simultaneously causing the soil below the bonding rings 3 to sink and form a groove. Due to the gravity of the adhesive and the seeds, the mulch film 1 at the bonding rings 3 sinks and adheres to the groove, the groove depth being approximately 1 cm. The hammer 17 and... When the plastic film 1 comes into contact with the soil, the piercing protrusion 18 punctures the plastic film 1, forming a water inlet hole in the bonding ring 3. The piercing rod 20 presses down on the plastic film 1 at multiple points along the bonding ring 3, pressing the rice seeds adhering to the plastic film 1 into the soil. At the same time, multiple holes are formed on the plastic film 1 and the cultivated layer, making the plastic film 1 and the cultivated layer like a sieve. When the hammer 17 is raised, the piercing rod 20 is pulled out. During the pulling process, the loose soil in the upper layer of the field slides down to the top of the rice seeds, which reduces the pressure on the rice seeds and facilitates the germination of rice seedlings. The rice seedlings can also drill out of the plastic film 1 through the holes on the plastic film 1. Irrigation water or rainfall is stored in the furrows and absorbed by the soil around the rice seeds through the water inlet hole, improving the rice seeds' water utilization rate and achieving drought-resistant sowing.

[0045] The number of piercing rods 20 can be greater than the number of bonding points 4, that is, the density of piercing rods 20 on the pressing hammer 17 is increased to prevent the position of piercing rods 20 and bonding points 4 from being incorrect, and to ensure that piercing rods 20 can effectively press the grain seeds on bonding points 4 into the soil.

[0046] Example 2 is basically the same as Example 1, except that the planting strips are arranged in wide and narrow rows, with the wide row being 50cm and the narrow row being 35cm.

Claims

1. A precision sowing device for drought-resistant millet without thinning, used to implement a precision sowing method for drought-resistant millet without thinning, characterized in that, The sowing method includes the following steps: S1. Level the soil in the field after rotary tillage; S2. Apply adhesive along the soil-facing side (2) of the mulch film (1) to be laid, so that the adhesive forms a set of spaced adhesive rings (3) on the soil-facing side (2), wherein the adhesive rings (3) include adhesive points (4) arranged sequentially and spaced along the outline of the adhesive rings (3). S3, the grain seeds are stuck together by the adhesive points (4) on the plastic film (1); S4. Make the soil-facing side (2) of the mulch film (1) face the ground in the field and lay the mulch film (1). Cover the mulch film (1) with soil on both sides to press it down and form a retaining wall. Then, hammer the part of the mulch film (1) with the adhesive ring (3) and puncture along the outline of the adhesive ring (3) and in the middle of the adhesive ring (3) to form a groove with a water inlet hole in the middle at the adhesive ring (3). A planting strip is formed between the adhesive rings (3) set in rows to complete the sowing. The sowing equipment includes a frame, and also includes a film spreading roller (5), a glue coating roller (6), a seed delivery unit (7), a soil covering unit (8), and a hammer pressing unit (9) arranged sequentially on the frame along the film conveying direction. The glue coating roller (6) is provided with a set of glue outlets (10) arranged in a circular array along the glue coating roller (6) in a ring structure. The glue outlets (10) include a set of glue outlets (11) arranged at intervals along the outline of the ring structure. The glue coating roller (6) applies glue liquid to the soil-adhering side (2) of the film (1) to form an adhesive point (4) by means of the glue outlets (11). The seed delivery unit (7) provides seeds to the film (1) and makes the seeds adhere to the adhesive point (4) on the soil-adhering side (2).

2. The drought-resistant, thinning-free precision sowing equipment for dryland millet according to claim 1, characterized in that: The row spacing between the planting strips is 35-50cm, and the planting strips are arranged with equal row spacing or with wide and narrow rows.

3. The drought-resistant, thinning-free precision sowing equipment for dryland millet according to claim 1, characterized in that: The seed delivery unit (7) includes a seed bin (12), a lifting rod (13) that matches the bonding point (4), and an air blowing unit (14) connected to the lifting rod (13). The lifting rod (13) is connected to the seed bin (12) and has the freedom to move up and down within the seed bin (12). When the mulch film (1) passes through the seed delivery unit (7), the soil-adhering side (2) is set downward. The lifting rod (13) is a hollow tubular structure. A seed tray (15) is provided at the end of the lifting rod (13). The air blowing unit (14) is connected to the lifting rod (13) and drives the seeds on the seed tray (15) to be thrown upward and adhered to the bonding point (4).

4. The drought-resistant, thinning-free precision sowing equipment for dryland millet according to claim 3, characterized in that: The coating roller (6) is located above the mulch film (1), and the seed delivery unit (7) is located below the mulch film (1). A reversing roller (19) is provided between the coating roller (6) and the seed delivery unit (7). After the mulch film (1) is unfolded by the film spreading roller (5), the soil-adhering side (2) is set upward. After the mulch film (1) passes the reversing roller (19), the soil-adhering side (2) is set downward.

5. The drought-resistant, thinning-free precision sowing equipment for dryland millet according to claim 3, characterized in that: The seed tray (15) is a rubber tray.

6. The drought-resistant, thinning-free precision sowing equipment for dryland millet according to claim 1, characterized in that: The hammer pressing unit (9) includes a rotating wheel (16) and a pressing hammer (17) arranged on the rotating wheel (16) along the circumferential direction. The lower end of the pressing hammer (17) is provided with a piercing rod (20) spaced along the contour of the adhesive ring (3) and a piercing protrusion (18) corresponding to the center of the adhesive ring (3).

7. The drought-resistant, thinning-free precision sowing equipment for dryland millet according to claim 1, characterized in that: The soil covering unit (8) includes a set of soil covering discs respectively set on both sides of the mulch film (1).

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