Water-fertilizer integrated water-fertilizer ratio regulation and control device

Abstract

The invention relates to a water and fertilizer integrated water and fertilizer ratio regulation and control device in the technical field of fertilization, and the device comprises a water and fertilizer regulation and control mixing assembly and an irrigation fertilization assembly, the water and fertilizer regulation and control mixing assembly comprises a water and fertilizer mixing barrel arranged on a mobile vehicle, and the water and fertilizer mixing barrel comprises an outer barrel body and an inner barrel body arranged in the outer barrel body; the outer barrel body comprises an outer barrel and a middle barrel arranged in the outer barrel, a water cavity used for containing water is formed between the inner wall of the outer barrel and the outer wall of the middle barrel, the inner barrel body comprises an inner barrel used for containing fertilizer, the inner barrel is arranged in the middle barrel, a mixing cavity is formed between the outer wall of the inner barrel and the inner wall of the middle barrel, and when negative pressure is generated in the mixing cavity, the mixing cavity is communicated with the inner barrel. Water in the water cavity and the fertilizer in the inner barrel enter the mixing cavity to be mixed into water fertilizer. The device is high in water and fertilizer mixing efficiency, low in fertilizer caking probability and good in irrigation and fertilization effect.

Description

Technical Field

[0001] This invention relates to the field of fertilization technology, and in particular to an integrated water and fertilizer ratio control device. Background Technology

[0002] In camellia oleifera cultivation, traditional manual irrigation and fertilization are inefficient, resulting in uneven water and fertilizer distribution, significant waste, and a lack of precise control mechanisms. Over-fertilization can also damage the root system or cause soil compaction. To avoid the problems associated with traditional manual irrigation, camellia oleifera cultivation is currently typically combined with integrated water and fertilizer management technology.

[0003] Integrated water and fertilizer management technology refers to a new agricultural technology that integrates irrigation and fertilization. It utilizes a pressure system to mix soluble solid or liquid fertilizers, tailored to soil nutrient content and crop requirements, with irrigation water. This mixture is then supplied through a controlled pipeline system, allowing the water and fertilizer to blend. The resulting solution, delivered via sprinkler or drip irrigation, evenly, regularly, and quantitatively irrigates the root zone, maintaining loose and suitable moisture levels in the soil around the roots. Furthermore, it designs solutions based on the specific nutrient requirements of different crops, soil conditions, nutrient content, and growth stages, providing water and nutrients directly to the crops in precise quantities and proportions. Combining this technology with camellia oleifera cultivation helps improve yield, quality, and overall profitability.

[0004] Currently, most fertigation systems on the market use a direct mixing method between water and fertilizer, meaning that solid fertilizer is directly added to the water and stirred during irrigation. This mixing method has many drawbacks. When fertilizer comes into contact with water, it is very easy for it to clump together, especially for fertilizers that are highly absorbent and viscous. Clumping not only prevents the fertilizer from dissolving completely and reduces mixing efficiency, but it can also clog irrigation pipes, affecting the normal operation of fertilization, resulting in fertilizer waste and increased production costs. Summary of the Invention

[0005] To address the problems mentioned in the background section regarding the tendency of water and fertilizer to agglomerate during mixing, leading to pipe blockage, hindering fertilization, wasting fertilizer, and increasing production costs, this invention provides the following technical solution:

[0006] A water-fertilizer integrated water-fertilizer ratio control device includes a water-fertilizer control and mixing component and an irrigation and fertilization component;

[0007] The water and fertilizer regulation and mixing component includes a water and fertilizer mixing tank mounted on a mobile vehicle. The water and fertilizer mixing tank includes an outer tank and an inner tank disposed within the outer tank.

[0008] The outer barrel includes an outer barrel and an intermediate barrel disposed inside the outer barrel, and a water cavity for containing water is formed between the inner wall of the outer barrel and the outer wall of the intermediate barrel.

[0009] The inner barrel includes an inner barrel for containing fertilizer. The inner barrel is located inside the middle barrel. A mixing chamber is formed between the outer wall of the inner barrel and the inner wall of the middle barrel. When a negative pressure is generated in the mixing chamber, the water in the water chamber and the fertilizer in the inner barrel enter the mixing chamber and mix to form a liquid fertilizer.

[0010] Furthermore, the outer and inner barrels are equipped with the same top cover, and an air pipe is fixed through the top cover and connected to the mixing chamber. A negative pressure pump is installed on one side of the water-fertilizer mixing barrel on the mobile vehicle. The air pipe is connected to the air inlet of the negative pressure pump through an air extraction pipe, which facilitates the extraction of negative pressure into the mixing chamber. Under the action of negative pressure, water and fertilizer are quickly dispersed and then enter the mixing chamber of the water-fertilizer mixing barrel for mixing, reducing the probability of fertilizer clumping.

[0011] Furthermore, a fertilizer inlet pipe and a water inlet pipe are fixedly installed through the top cover. The fertilizer inlet pipe communicates with the inside of the inner barrel, and the water inlet pipe communicates with the inside of the water cavity. A fertilizer tank and a water tank are installed on the mobile vehicle behind the water-fertilizer mixing tank. The fertilizer tank is connected to the fertilizer inlet pipe through a fertilizer delivery pipe, and the fertilizer in the fertilizer tank is pumped into the inner barrel through the fertilizer delivery pipe and the fertilizer inlet pipe. The water tank is connected to the water cavity through a water delivery pipe, and the fertilizer in the water tank is pumped into the water cavity through the water delivery pipe and the water inlet pipe. Flow meters are fixed on both the fertilizer delivery pipe and the water delivery pipe to facilitate the adjustment of the water and fertilizer ratio.

[0012] Furthermore, the outer barrel, the middle barrel, and the inner barrel are all provided with multiple filter holes. The filter holes on the inner barrel are large enough to allow fertilizer particles to pass through, while the filter holes on the outer barrel and the middle barrel are not large enough to allow fertilizer particles to pass through. A fertilizer outlet pipe is fixed to the outer wall of the middle barrel. The fertilizer outlet pipe passes through the outer barrel and extends out of the outer barrel. The water and fertilizer in the mixing chamber are filtered through the filter holes on the middle barrel and then discharged through the fertilizer outlet pipe to avoid blockage of the irrigation and fertilization components.

[0013] Furthermore, the inner barrel also includes a plurality of hollow tubes fixed to the outer wall of the inner barrel. The interior of the hollow tubes is connected to the inner barrel through filter holes on the inner barrel, and the outer wall of the hollow tubes is provided with a plurality of through holes communicating with its inner cavity. The size of the through holes allows fertilizer particles to pass through.

[0014] Furthermore, the bottom of the inner wall of the outer barrel is fixed to the bottom of the outer wall of the middle barrel by multiple connecting rods.

[0015] Furthermore, an outer sleeve is fixed to the outer wall of the outer barrel, and an air-permeable and water-blocking component is fixed inside the outer sleeve. The air-permeable and water-blocking component is fixed to the outer wall of the outer barrel. The air outlet of the negative pressure pump is connected to the outer sleeve through a return air pipe so as to return a portion of the air extracted from the mixing chamber to the water-fertilizer mixing tank. This has the advantages of accelerating fertilizer dissolution, avoiding local sedimentation, and balancing the pressure inside the water-fertilizer mixing tank.

[0016] Furthermore, the irrigation and fertilization assembly includes multiple fertilization pipes, each of which is fixed with multiple fertilization outlet pipes. The bottom of each fertilization outlet pipe is pointed to facilitate insertion into the soil around the plant roots. The outer wall of each fertilization pipe is provided with multiple water and fertilizer outlets so that the mixed water and fertilizer can be accurately delivered to the roots of each plant by a water pump. This is suitable for Camellia oleifera-forest medicinal herb (such as Polygonatum sibiricum and Bletilla striata) symbiotic systems and resolves the water and fertilizer competition conflict in the symbiotic system.

[0017] Furthermore, multiple fertilizer pipes are connected to the same main pipe, and a connecting pipe is fixed on the main pipe. A delivery pipe is connected to the end of the connecting pipe away from the main pipe. A water pump is installed on the mobile vehicle on the other side of the water-fertilizer mixing tank. The water pump inlet is fixed to the fertilizer outlet pipe, and the water pump outlet is fixed to the delivery pipe, which facilitates the delivery of the mixed water and fertilizer into the irrigation and fertilization assembly.

[0018] Furthermore, an air outlet pipe is connected to the end of the connecting pipe away from the main pipe. The air outlet pipe is connected to the air outlet of the negative pressure pump, and an air splitting device is installed on the air outlet pipe. The air splitting device is fixed on the mobile vehicle and is used to turn another part of the air extracted from the mixing chamber into tiny bubbles, mix it with water and fertilizer, and then input it into the irrigation and fertilization assembly.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] Fertilizer and water are pumped into the inner tank and water chamber respectively in proportion. Then, the negative pressure pump works to extract the air in the mixing chamber, creating negative pressure in the mixing chamber. Under the action of negative pressure, the water and fertilizer are quickly dispersed and then enter the mixing chamber of the water-fertilizer mixing tank for mixing, reducing the probability of fertilizer clumping. After mixing, the water and fertilizer are filtered through the filter holes of the middle tank and then transported into the irrigation and fertilization components to avoid blockage of the irrigation and fertilization components' pipes.

[0021] Meanwhile, the negative pressure pump draws some of the air out of the mixing chamber back into the water-fertilizer mixing tank, which has the following advantages: 1. Accelerates fertilizer dissolution: After the air enters the water-fertilizer mixing tank, it generates rising bubbles, which stir the fertilizer and water, breaking up local concentration differences and allowing the fertilizer and water to come into full contact, shortening the dissolution time; 2. Prevents local sedimentation: If the water and fertilizer are not mixed evenly, sedimentation at the bottom is likely to occur. The stirring of the bubbles keeps the mixture in a suspended state, ensuring uniform water-fertilizer concentration; 3. Balances the pressure inside the water-fertilizer mixing tank: When the negative pressure pump draws air, the pressure inside the water-fertilizer mixing tank continuously decreases. If some of the air is returned, the return flow can be adjusted by the valve to stabilize the negative pressure value of the water-fertilizer mixing tank, avoiding problems such as excessively high negative pressure leading to excessively rapid water absorption and unbalanced ratios, indirectly improving the accuracy of water-fertilizer ratios.

[0022] Meanwhile, the negative pressure pump separates another portion of the air extracted from the mixing chamber into tiny bubbles, which are then mixed with water and fertilizer for irrigation and fertilization. This has the following advantages: 1. The tiny bubbles, after mixing with water and fertilizer, are transported in the pipes of the irrigation and fertilization component, increasing the pipe pressure and promoting the rapid entry of water and fertilizer into the soil, thus improving the speed of water and fertilizer transport and increasing irrigation and fertilization efficiency; 2. The bubbles can impact and disturb impurities in the pipes, reducing the probability of pipe blockage. Moreover, after irrigation, a small amount of water and fertilizer may remain in the pipes. The introduced bubbles can push the remaining water and fertilizer to the plant roots, reducing waste; 3. The mixing of air with water and fertilizer can increase the oxygen content of the water and fertilizer, supplementing oxygen to the plant roots, preventing root hypoxia, and promoting crop root development. Attached Figure Description

[0023] Figure 1 This is a structural diagram of the present invention;

[0024] Figure 2 The structure of the water and fertilizer regulation mixing component of this invention Figure 1 ;

[0025] Figure 3 The structure of the water and fertilizer regulation mixing component of this invention Figure 2 ;

[0026] Figure 4 This is a cross-sectional view of the water-fertilizer mixing tank of the present invention;

[0027] Figure 5 This is a structural diagram of the inner barrel of the present invention;

[0028] Figure 6 This is a top sectional view of the water-fertilizer mixing tank of the present invention;

[0029] Figure 7 This is a structural diagram of the irrigation and fertilization component of the present invention;

[0030] Figure 8 for Figure 7 Enlarged view of section A.

[0031] The following is a list of component names represented by the reference numerals in the attached figures:

[0032] 1-Water and fertilizer regulation and mixing component, 2-Irrigation and fertilization component, 21-Fertilizer pipe, 22-Fertilizer outlet pipe, 23-Main pipe, 24-Connecting pipe;

[0033] 3-Mobile vehicle;

[0034] 4-Water and fertilizer mixing tank, 41-Outer tank body, 42-Inner tank body, 43-Water cavity, 44-Mixing cavity, 45-Top cover, 46-Air pipe, 47-Fertilizer inlet pipe, 48-Water inlet pipe, 49-Outer jacket, 410-Ventilating and water-blocking component, 413-Fertilizer outlet pipe;

[0035] 411-Outer drum, 412-Middle drum, 421-Inner drum, 422-Hollow tube;

[0036] 5-Fertilizer tank, 6-Fertilizer delivery pipe, 7-Water tank, 8-Water delivery pipe, 9-Negative pressure pump, 10-Air extraction pipe, 11-Water pump, 12-Return air pipe, 13-Air outlet pipe, 14-Air splitting device, 15-Transport pipe. Detailed Implementation

[0037] The preferred embodiments of the present invention are described in detail below, and a clear and complete description is provided in conjunction with the accompanying drawings.

[0038] like Figures 1-8 As shown, the present invention provides an integrated water and fertilizer ratio control device, including a water and fertilizer control mixing component 1 and an irrigation and fertilization component 2; the water and fertilizer control mixing component 1 includes a water and fertilizer mixing tank 4 mounted on a mobile vehicle 3, the water and fertilizer mixing tank 4 includes an outer tank body 41 and an inner tank body 42 disposed within the outer tank body 41, the bottom of the inner wall of the outer tank body 411 and the bottom of the outer wall of the middle tank 412 are fixed by multiple connecting rods, the outer tank body 41 includes an outer tank 411 and an inner tank 412 disposed within the outer tank 411, a water cavity 43 for containing water is formed between the inner wall of the outer tank 411 and the outer wall of the middle tank 412, and multiple filter holes are provided on both the outer tank 411 and the middle tank 412, the size of the filter holes on the outer tank 411 and the middle tank 412 is such that fertilizer particles cannot pass through.

[0039] The inner barrel 42 includes an inner barrel 421, the interior of which is used to hold fertilizer. The inner barrel 421 has multiple filter holes of a size that allows fertilizer particles to pass through. The inner barrel 421 is located inside an intermediate barrel 412, and a mixing cavity 44 is formed between the outer wall of the inner barrel 421 and the inner wall of the intermediate barrel 412. The inner barrel 42 also includes multiple hollow tubes 422 fixed to the outer wall of the inner barrel 421. The interior of each hollow tube 422 communicates with the inner barrel 421 through the filter holes on the inner barrel 421, and the outer wall of each hollow tube 422 has multiple through holes communicating with its inner cavity, the size of which allows fertilizer particles to pass through.

[0040] Next, the same top cover 45 is provided on the top of the outer barrel 41 and the inner barrel 42. The top cover 45 is threaded to the outer barrel 411, and a sealing ring is provided between the top cover 45 and the outer barrel 411 to facilitate the disassembly and assembly of the top cover 45. An air pipe 46 is fixed through the top cover 45 and is connected to the mixing chamber 44. A negative pressure pump 9 is installed on the side of the water-fertilizer mixing tank 4 on the mobile vehicle 3. The air pipe 46 is connected to the air inlet of the negative pressure pump 9 through the air extraction pipe 10. When the negative pressure pump 9 works, it extracts the air in the mixing chamber 44, thus creating a negative pressure in the mixing chamber 44. Under the action of negative pressure, the water in the water chamber 43 and the fertilizer in the inner barrel 421 quickly enter the mixing chamber 44 and mix, resulting in high mixing efficiency.

[0041] A fertilizer tank 5 and a water tank 7 are installed on the mobile vehicle 3 behind the water-fertilizer mixing tank 4. A fertilizer inlet pipe 47 and a water inlet pipe 48 are also fixed through the upper cover 45. The fertilizer inlet pipe 47 is connected to the inside of the inner tank 421, and the water inlet pipe 48 is connected to the inside of the water cavity 43. The fertilizer tank 5 is connected to the fertilizer inlet pipe 47 through a fertilizer delivery pipe 6. Fertilizer in the fertilizer tank 5 is pumped into the inner tank 421 through the fertilizer delivery pipe 6 and the fertilizer inlet pipe 47. The water tank 7 is connected to the water cavity 43 through a water delivery pipe 8. Fertilizer in the water tank 7 is pumped into the water cavity 43 through the water delivery pipe 8 and the water inlet pipe 48. Flow meters are fixed on both the fertilizer delivery pipe 6 and the water delivery pipe 8 to facilitate the adjustment of the water and fertilizer ratio.

[0042] The outer wall of the intermediate tank 412 is fixed with a fertilizer outlet pipe 413. The fertilizer outlet pipe 413 extends through the outer tank 411 and out of the outer tank 411. The water and fertilizer in the mixing chamber 44 are filtered through the filter holes on the intermediate tank 412 and then discharged through the fertilizer outlet pipe 413. A water pump 11 is installed on the other side of the water and fertilizer mixing tank 4 on the mobile vehicle 3. The inlet of the water pump 11 is fixed to the fertilizer outlet pipe 413 to facilitate the delivery of the mixed water and fertilizer into the irrigation and fertilization assembly 2.

[0043] Meanwhile, an outer sleeve 49 is fixed to the outer wall of the outer bucket 411. Inside the outer sleeve 49 is a breathable and water-blocking component 410, which is fixed to the outer wall of the outer bucket 411. The breathable and water-blocking component 410 can be a waterproof and breathable membrane. The working principle of the waterproof and breathable membrane is as follows: gas molecules have a larger distance between them and can pass through the pores during diffusion, while liquid molecules have a smaller distance between them and, under the action of surface tension, cannot pass through the waterproof and breathable membrane. Therefore, air can enter the water-fertilizer mixing tank 4 through the breathable and water-blocking component 410 and the filter holes on the outer bucket 411, while water in the water-fertilizer mixing tank 4 will not flow out through the filter holes on the outer bucket 411. The air outlet of the negative pressure pump 9 is connected to the outer sleeve 49 through a return air pipe 12 to return a portion of the air extracted from the mixing chamber 44 into the water-fertilizer mixing tank 4. This has the advantages of accelerating fertilizer dissolution, preventing local sedimentation, and balancing the pressure inside the water-fertilizer mixing tank 4.

[0044] like Figure 7 and Figure 8 As shown, the irrigation and fertilization assembly 2 includes multiple fertilization pipes 21, each with a fixed flow regulating valve for individually adjusting the flow rate of each pipe to fertilize plants with different fertilizer requirements. Each fertilization pipe 21 is also connected to multiple fertilizer outlet pipes 22, the bottom of which is pointed for easy insertion into the soil around the plant roots. Multiple water and fertilizer outlets are provided on the outer wall of each fertilization pipe 21. Multiple fertilization pipes 21 are connected to the same main pipe 23, which is connected to a connecting pipe 24. A delivery pipe 15 is connected to the end of the connecting pipe 24 furthest from the main pipe 23, and the outlet of the water pump 11 is fixed to the delivery pipe 15. The fertilizer outlet pipes 22 are inserted into the soil around the plant roots, and the mixed water and fertilizer are precisely delivered to the roots of each plant by the water pump 11. This system is suitable for Camellia oleifera-medicinal plant (such as Polygonatum sibiricum and Bletilla striata) symbiotic systems, resolving the water and fertilizer competition within the symbiotic system.

[0045] An air outlet pipe 13 is connected to the end of the connecting pipe 24 furthest from the main pipe 23. The air outlet pipe 13 is connected to the air outlet of the negative pressure pump 9, and an air splitting device 14 is installed on the air outlet pipe 13. The air splitting device 14 is fixed on the mobile vehicle 3. The air splitting device 14 consists of a shell and an air splitting component installed inside the shell. The air splitting component can be an aeration stone or a metal filter, etc. The aeration stone has a pore diameter of 0.1-1mm, and the air is split into tiny bubbles with a diameter of 0.5-5mm when it passes through. The metal filter has a pore size of 50-200 mesh, which can produce tiny bubbles with a diameter of 0.1-1mm. Another part of the air extracted from the mixing chamber 44 is split into tiny bubbles by the air splitting device 14 and mixed with water and fertilizer before being input into the irrigation and fertilization component 2. This can improve irrigation efficiency, reduce the probability of pipe blockage, and increase the oxygen content of the liquid to supplement oxygen for plant roots.

[0046] In practical use, the present invention can install check valves on the pipeline as needed, such as air outlet pipe 13 and delivery pipe 15, to prevent backflow of water, fertilizer, and air. In addition, the present invention also requires a battery and control box to be installed on the mobile vehicle 3 to power the electrical equipment of the device and control the operation of the electrical equipment. The circuit setting and control system use existing technology and will not be described in further detail here.

[0047] Working principle of this invention:

[0048] First, the fertilizer pipes 21 of the irrigation and fertilization component 2 are arranged so that the fertilizer outlet pipes 22 on the fertilizer pipes 21 are inserted into the soil around the plant roots. After the pipes on the irrigation and fertilization component 2 are connected to the water and fertilizer regulation and mixing component 1, the fertilizer in the fertilizer tank 5 is pumped into the inner tank 421 according to the ratio, and the water in the water tank 7 is pumped into the water chamber 43 according to the ratio. At the same time, the negative pressure pump 9 works to extract the air in the mixing chamber 44, so that the mixing chamber 44 generates negative pressure. Under the action of negative pressure, the water in the water chamber 43 is forced to enter the mixing chamber 44 quickly through the filter holes on the intermediate tank 412. The fertilizer in the inner tank 421 enters the mixing chamber 44 quickly through the filter holes on the inner tank 421 and the hollow pipe 422, so that the water and fertilizer are dispersed before entering the mixing chamber 44, reducing the probability of fertilizer clumping.

[0049] At the same time, the negative pressure pump 9 draws a portion of the air extracted from the mixing chamber 44 back into the water-fertilizer mixing tank 4 through the filter holes on the outer casing 49 and the outer tank 411, which has the following advantages:

[0050] ①Accelerate fertilizer dissolution: After air enters the water-fertilizer mixing tank 4, it generates rising bubbles, which will stir the fertilizer and water, break the local concentration difference, and allow the fertilizer and water to come into full contact, thus shortening the dissolution time.

[0051] ② Avoid local sedimentation: If the water and fertilizer are not mixed evenly, sedimentation is likely to occur at the bottom. Stirring with bubbles can keep the mixture in a suspended state and ensure that the water and fertilizer concentration is uniform.

[0052] ③ Balance the pressure inside the water-fertilizer mixing tank 4: When the negative pressure pump 9 is pumping air, the pressure inside the water-fertilizer mixing tank 4 continues to decrease. If some of the air is returned, the return flow can be adjusted by the valve to stabilize the negative pressure value of the water-fertilizer mixing tank 4, avoiding problems such as excessive water absorption and imbalance caused by excessive negative pressure, and indirectly improving the accuracy of water-fertilizer ratio.

[0053] Next, after the water and fertilizer are mixed, the water pump 11 is started. The mixed water and fertilizer are transported into the irrigation and fertilization component 2 through the fertilizer outlet pipe 413 and the delivery pipe 15 to irrigate and fertilize the plant roots. Since the water and fertilizer pass through the filter holes on the intermediate tank 412 before entering the fertilizer outlet pipe 413, the water and fertilizer can be filtered, and undissolved fertilizer will not enter the irrigation and fertilization component 2, thus avoiding blockage of the irrigation and fertilization component 2 pipes.

[0054] At the same time, the negative pressure pump delivers another portion of the air extracted from the mixing chamber 44 into the air outlet pipe 13. The air in the air outlet pipe 13 is divided into microbubbles by the air splitting device 14 and then enters the irrigation and fertilization assembly 2. The microbubbles mix with water and fertilizer for fertilization, which has the following advantages:

[0055] ① After the microbubbles are mixed with water and fertilizer, they are transported in the pipes of the irrigation and fertilization component 2, which increases the pipe pressure of the irrigation and fertilization component 2, promotes the rapid entry of water and fertilizer into the soil, increases the water and fertilizer transport speed, and improves the irrigation and fertilization efficiency.

[0056] ② The air bubbles can impact and disturb the impurities in the pipe, reducing the probability of pipe blockage. Moreover, after irrigation, a small amount of water and fertilizer may remain in the pipe. The air bubbles introduced can push the remaining water and fertilizer to the plant roots, reducing waste.

[0057] ③ Mixing air with water and fertilizer can increase the oxygen content of water and fertilizer, supplement oxygen for plant roots, avoid root hypoxia, and promote crop root development.

[0058] Based on the above description and accompanying drawings, those skilled in the art can understand and implement this invention. Furthermore, any non-creative modifications made to this invention by those skilled in the art without inventive effort are still within the scope of protection of this invention.

Claims

1. A water-fertilizer integration device for regulating the water-fertilizer ratio, characterized in that: It includes a water and fertilizer regulation mixing component (1) and an irrigation and fertilization component (2); The water and fertilizer regulation and mixing component (1) includes a water and fertilizer mixing tank (4) set on a mobile vehicle (3). The water and fertilizer mixing tank (4) includes an outer tank body (41) and an inner tank body (42) set inside the outer tank body (41). The outer barrel (41) includes an outer barrel (411) and an intermediate barrel (412) disposed inside the outer barrel (411). A water cavity (43) for containing water is formed between the inner wall of the outer barrel (411) and the outer wall of the intermediate barrel (412). The inner barrel (42) includes an inner barrel (421) for containing fertilizer. The inner barrel (421) is located inside the middle barrel (412). A mixing chamber (44) is formed between the outer wall of the inner barrel (421) and the inner wall of the middle barrel (412). When a negative pressure is generated in the mixing chamber (44), the water in the water chamber (43) and the fertilizer in the inner barrel (421) enter the mixing chamber (44) and mix to form a water-fertilizer mixture.

2. The water-fertilizer ratio regulating device for integrated water and fertilizer system according to claim 1, characterized in that: The outer barrel (41) and the inner barrel (42) are provided with the same top cover (45), and an air pipe (46) is fixed through the top cover (45). The air pipe (46) is connected to the mixing chamber (44). A negative pressure pump (9) is installed on the side of the water-fertilizer mixing tank (4) on the mobile vehicle (3). The air pipe (46) is connected to the air inlet of the negative pressure pump (9) through the air extraction pipe (10) to facilitate the extraction of negative pressure into the mixing chamber (44).

3. The water-fertilizer ratio regulating device for integrated water and fertilizer system according to claim 2, characterized in that: The upper cover (45) is also fixed with a fertilizer inlet pipe (47) and a water inlet pipe (48). The fertilizer inlet pipe (47) is connected to the inside of the inner bucket (421), and the water inlet pipe (48) is connected to the inside of the water cavity (43). The mobile vehicle (3) is equipped with a fertilizer tank (5) and a water tank (7) located behind the water-fertilizer mixing tank (4). The fertilizer tank (5) is connected to the fertilizer inlet pipe (47) through the fertilizer delivery pipe (6). The fertilizer in the fertilizer tank (5) is pumped into the inner tank (421) through the fertilizer delivery pipe (6) and the fertilizer inlet pipe (47). The water tank (7) is connected to the water chamber (43) through a water supply pipe (8). The fertilizer in the water tank (7) is pumped into the water chamber (43) through the water supply pipe (8) and the water inlet pipe (48). Both the fertilizer delivery pipe (6) and the water delivery pipe (8) are equipped with flow meters to facilitate the control of the water and fertilizer ratio.

4. The water-fertilizer ratio regulating device for integrated water and fertilizer system according to claim 3, characterized in that: The outer barrel (411), the middle barrel (412) and the inner barrel (421) are all provided with multiple filter holes. The size of the filter holes on the inner barrel (421) allows fertilizer particles to pass through, while the size of the filter holes on the outer barrel (411) and the middle barrel (412) does not allow fertilizer particles to pass through. The outer wall of the intermediate bucket (412) is fixed with a fertilizer outlet pipe (413). The fertilizer outlet pipe (413) extends through the outer bucket (411) and out of the outer bucket (411). The water and fertilizer in the mixing chamber (44) are filtered through the filter holes on the intermediate bucket (412) and then discharged through the fertilizer outlet pipe (413).

5. The water-fertilizer ratio regulating device for integrated water and fertilizer system according to claim 4, characterized in that: The inner barrel (42) also includes a plurality of hollow tubes (422) fixed to the outer wall of the inner barrel (421). The interior of the hollow tubes (422) is connected to the inner barrel (421) through filter holes on the inner barrel (421), and the outer wall of the hollow tubes (422) is provided with a plurality of through holes communicating with its inner cavity. The size of the through holes allows fertilizer particles to pass through.

6. The water-fertilizer ratio regulating device for integrated water and fertilizer system according to claim 1, characterized in that: The bottom of the inner wall of the outer barrel (411) is fixed to the bottom of the outer wall of the middle barrel (412) by multiple connecting rods.

7. The water-fertilizer ratio regulating device for integrated water and fertilizer system according to claim 4, characterized in that: The outer wall of the outer barrel (411) is fixed with an outer sleeve (49), and the inner side of the outer sleeve (49) is fixed with a breathable and water-blocking component (410), which is fixed to the outer wall of the outer barrel (411). The air outlet of the negative pressure pump (9) is connected to the outer casing (49) through the return air pipe (12) so as to return a portion of the air extracted from the mixing chamber (44) into the water and fertilizer mixing tank (4) to accelerate the mixing of water and fertilizer.

8. The water-fertilizer ratio regulating device for integrated water and fertilizer system according to claim 7, characterized in that: The irrigation and fertilization assembly (2) includes multiple fertilization pipes (21), each of which is fixed with multiple fertilizer outlet pipes (22). The bottom of the fertilizer outlet pipe (22) is pointed to facilitate insertion into the soil around the plant roots, and the outer wall of each fertilization pipe (21) has multiple water and fertilizer outlets.

9. The water-fertilizer ratio regulating device for integrated water and fertilizer system according to claim 8, characterized in that: Multiple fertilizer pipes (21) are connected to the same main pipe (23), and a connecting pipe (24) is fixed on the main pipe (23). A delivery pipe (15) is connected to the end of the connecting pipe (24) away from the main pipe (23). A water pump (11) is installed on the other side of the water-fertilizer mixing tank (4) on the mobile vehicle (3). The water inlet of the water pump (11) is fixed to the fertilizer outlet pipe (413), and the water outlet of the water pump (11) is fixed to the delivery pipe (15), so as to facilitate the delivery of the mixed water and fertilizer into the irrigation and fertilization assembly (2).

10. The water-fertilizer ratio regulating device for integrated water and fertilizer system according to claim 9, characterized in that: The end of the connecting pipe (24) away from the main pipe (23) is also connected to an air outlet pipe (13). The air outlet pipe (13) is connected to the air outlet of the negative pressure pump (9), and an air splitting device (14) is installed on the air outlet pipe (13). The air splitting device (14) is fixed on the mobile vehicle (3) and is used to turn another part of the air extracted from the mixing chamber (44) into tiny bubbles and mix it with water and fertilizer before inputting it into the irrigation and fertilization assembly (2).

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