Liquid fertilizer atomizing and fertilizing device and fertilizing method

Abstract

The invention discloses a liquid fertilizer atomizing and fertilizing device and a fertilizing method.The liquid fertilizer atomizing and fertilizing device comprises an agricultural tractor, a liquid fertilizer atomizing and fertilizing mechanism and a rotary cultivator, and the agricultural tractor is provided with the rotary cultivator used for farmland soil rotary tillage and the liquid fertilizer atomizing and fertilizing mechanism used for spraying liquid fertilizer to farmland soil; the liquid fertilizer atomizing and fertilizing mechanism is provided with a stirring assembly for stirring and mixing the liquid fertilizer and an atomizing and spraying assembly for spraying the atomized liquid fertilizer, mounting assemblies are mounted on the two sides of the outer wall of the stirring assembly, and the stirring assembly is fixedly connected with an agricultural tractor through the mounting assemblies. The farmland soil rotary tillage and the liquid fertilizer spraying are simultaneously and efficiently completed, the manual and power cost is not additionally increased, the liquid fertilizer and the farmland soil can be fully mixed, and the purpose of efficiently and uniformly applying the liquid fertilizer into the farmland soil is achieved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of fertilizing equipment, and particularly relates to a liquid fertilizer atomization fertilizing device and a fertilizing method. BACKGROUND

[0002] In traditional farmland fertilization, generally, solid fertilizers are applied. Before application, the solid fertilizers are often completed by manual spreading or seeding and fertilizing integrated machines, and the fertilization technology is relatively mature. However, in recent years, with the rapid development of liquid fertilizer products in China, especially the microbial agent type liquid fertilizer products with the functions of improving soil and improving fertilizer utilization efficiency are applied in a large area. However, at present, there is a lack of technology and equipment for low-cost and uniform mixing of liquid fertilizer as base fertilizer with soil.

[0003] At present, liquid fertilizer as base fertilizer of field crops is generally applied by manual spreading. This method not only cannot effectively mix the liquid fertilizer with the farmland soil, but also increases the labor cost and labor intensity, and affects the enthusiasm of farmers for liquid fertilizer application. Therefore, it is urgent to develop a technology, device and fertilizing method which can save labor cost and complete the rotary tillage, seeding and uniform spreading of liquid fertilizer at one time. SUMMARY

[0004] In view of the defects or deficiencies of the liquid fertilizer atomization fertilizing device and the fertilizing method, the purpose of the present application is to provide a liquid fertilizer atomization fertilizing device and a fertilizing method, which can simultaneously perform rotary tillage of farmland soil and liquid fertilizer spraying, and can be efficiently completed together, so that the liquid fertilizer can be fully mixed with the farmland soil, and the purpose of efficient and uniform application of liquid fertilizer into the farmland soil can be achieved.

[0005] To achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0006] The liquid fertilizer atomization fertilizing device provided by the present application comprises an agricultural tractor, a liquid fertilizer atomization fertilizing mechanism and a rotary tiller, the agricultural tractor is provided with a rotary tiller for rotary tillage of farmland soil and a liquid fertilizer atomization fertilizing mechanism for spraying liquid fertilizer to the farmland soil;

[0007] The liquid fertilizer atomization fertilizing mechanism is provided with a stirring assembly for stirring and mixing of liquid fertilizer and an atomization spraying assembly for spraying and atomizing liquid fertilizer, the outer wall of the stirring assembly is provided with mounting assemblies on both sides, and the stirring assembly is fixedly connected with the agricultural tractor through the mounting assemblies.

[0008] Preferably, the stirring assembly is provided with a stirring tank, the inside of the stirring tank is provided with a stirring shaft, a stirring rod and helical blades, the stirring rod and helical blades are both mounted on the outer wall of the stirring shaft, the stirring rod is above the helical blades, the top end of the stirring shaft extends into the inside of the protective cover through the sealing bearing at the central position of the top end of the stirring tank and is connected with the speed reducer motor through the shaft coupling, the speed reducer motor is mounted on the upper surface of the mounting plate B, and the output shaft on the speed reducer motor penetrates the surface of the mounting plate B.

[0009] Preferably, one side of the speed reducer motor is provided with an electric air pump, and the electric air pump and the speed reducer motor are both in the inside of the protective cover, the electric air pump is mounted on the upper surface of the mounting plate A, the air outlet at the bottom end of the electric air pump penetrates the mounting plate A and is connected with the air pipe through the pipe joint, and the air pipe is arranged at the top end of the stirring tank, the lower surfaces of the mounting plate A and the mounting plate B are both connected with the top end of the stirring tank through the supporting rods.

[0010] Preferably, the other side of the top end of the stirring tank is provided with a feeding pipe, the top end of the feeding pipe is mounted with an end cover, the inner wall of the end cover is provided with an internal thread, the outer wall of the feeding pipe is provided with an external thread, and the internal thread on the end cover is threadedly connected with the external thread on the feeding pipe, the central position of the bottom end of the stirring tank is provided with a liquid outlet pipe, and the electromagnetic valves are arranged on the liquid outlet pipe and the air pipe.

[0011] Preferably, the protective cover is fixedly connected with the stirring tank through the fastening bolts, the outer walls of the two sides of the protective cover are both provided with rainproof louvers, and the front end wall of the protective cover is provided with a safety door, the top end of the protective cover is mounted with a storage battery box, and the inside of the storage battery box is provided with a storage battery body.

[0012] Preferably, the atomizing and spraying assembly is provided with a hollow rectangular plate, the upper surface of the hollow rectangular plate is provided with a branch pipe A, the lower surface of the hollow rectangular plate is provided with a branch pipe B, the bottom end of the branch pipe B is connected with the atomizing nozzle through the pipe joint, the outer walls of the two sides of the hollow rectangular plate are both mounted with fixed supports, and the top ends of the fixed supports are fixedly connected with the stirring tank through the fastening bolts.

[0013] Preferably, the mounting assembly is provided with a fixed support, the fixed support is mounted on the outer wall of the stirring tank, and the fixed support and the stirring tank are fixedly connected through welding, one end of the outer wall of the fixed support is provided with a connecting plate A, the connecting plate A is connected with a connecting plate B through a shock absorber, and the connecting plate B is mounted on one side of the outer wall of a fixed plate, the fixed plate is mounted on the outer shell of the agricultural tractor, and the fixed plate and the outer shell of the agricultural tractor are fixedly connected through welding.

[0014] Preferably, the top end of the branch pipe A is connected with the conveying pipe through the pipe joint, and the other end of the conveying pipe is connected with the liquid outlet pipe through the pipe joint.

[0015] A fertilization method using a liquid fertilizer atomizing fertilization device includes the following steps:

[0016] S1: First, pour solid fertilizer, liquid fertilizer and water into the mixing tank through the feeding pipe. The operator starts the reduction motor, which drives the stirring rod and spiral blades on the stirring shaft to rotate. The rotation of the spiral blades lifts the mixture at the bottom of the mixing tank upwards, so that the stirring rod can fully mix the mixture.

[0017] S2: After the fertilizer is fully mixed and dissolved, the staff drives the agricultural tractor in the field and makes the rotary tiller on the soil to perform rotary tillage. Before rotary tillage, the staff starts the liquid fertilizer atomization fertilization mechanism. When the solenoid valves on the air pipe and the liquid outlet pipe are in the open state, the electric air pump on the liquid fertilizer atomization fertilization mechanism can pressurize the inside of the mixing tank.

[0018] S3: The flow rate of liquid fertilizer sprayed by the atomizing nozzle is adjusted by regulating the air pressure in the mixing tank. The liquid fertilizer in the mixing tank flows into the hollow rectangular plate on the atomizing spraying component through the delivery pipe. The liquid fertilizer in the hollow rectangular plate flows into the atomizing nozzle, which atomizes the liquid fertilizer and sprays it onto the soil between the rotary tiller and the agricultural tractor. The soil sprayed with liquid fertilizer is then synchronously tilled by the rotary tiller.

[0019] Compared with existing technologies, one or more of the above technical solutions have the following beneficial effects:

[0020] 1. Through the coordinated setup of agricultural tractors, liquid fertilizer atomizing fertilization mechanisms, and rotary tillers, when growers are performing rotary tillage and fertilization operations on farmland soil, the liquid fertilizer atomizing fertilization mechanism sprays liquid fertilizer onto the soil between the rotary tiller and the tractor as the tractor moves. The soil sprayed with liquid fertilizer is then tilled by the rotary tiller. This achieves simultaneous and efficient completion of farmland soil tillage and liquid fertilizer spraying without increasing labor and power costs. It also ensures that the liquid fertilizer is fully mixed with the farmland soil, achieving the goal of efficient and uniform application of liquid fertilizer to the farmland soil.

[0021] 2. Through the design of the mixing components and other structures, solid fertilizer, liquid fertilizer and water can be mixed and stirred without the need for manual stirring of fertilizer, reducing labor intensity and effectively improving the mixing effect between solid fertilizer, liquid fertilizer and water. This avoids the situation where solid fertilizer is not completely dissolved due to poor stirring and is sprayed and transported, which may cause blockage of the conveying structure.

[0022] 3. Through the design of structures such as atomizing spray components, the atomizing spray components can atomize liquid fertilizer and spray the atomized liquid fertilizer evenly onto the farmland soil.

[0023] 4. Through the installation of components and other structures, the installation components can buffer and reduce the vibration of the liquid fertilizer atomizing fertilization mechanism, thereby reducing the vibration amplitude transmitted to the liquid fertilizer atomizing fertilization mechanism by the agricultural tractor during operation. This prevents the agricultural tractor, installation components, and liquid fertilizer atomizing fertilization mechanism from breaking or separating due to large vibrations during operation. Attached Figure Description

[0024] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0025] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention. Figure One .

[0026] Figure 2 This is a schematic diagram of the overall three-dimensional structure of the present invention. Figure Two .

[0027] Figure 3 This is a schematic diagram of the three-dimensional structure of the liquid fertilizer atomizing fertilization mechanism of the present invention. Figure One .

[0028] Figure 4 This is a schematic diagram of the three-dimensional structure of the liquid fertilizer atomizing fertilization mechanism of the present invention. Figure Two .

[0029] Figure 5 This is a three-dimensional structural diagram of the stirring component of the present invention.

[0030] Figure 6 This is a schematic diagram of the internal structure of the stirring assembly of the present invention.

[0031] Figure 7 This is a schematic diagram of the three-dimensional structure of the atomizing spraying component of the present invention. Figure One .

[0032] Figure 8 This is a schematic diagram of the three-dimensional structure of the atomizing spraying component of the present invention. Figure Two .

[0033] Figure 9 This is a schematic diagram of the three-dimensional structure of the installation component of the present invention. Figure One .

[0034] Figure 10 This is a schematic diagram of the three-dimensional structure of the installation component of the present invention. Figure Two .

[0035] In the picture:

[0036] 100. Agricultural tractors;

[0037] 200. Liquid fertilizer atomizing fertilization device;

[0038] 210. Agitator assembly; 211. Battery box; 2111. Battery body; 212. Protective cover; 2121. Safety door; 2122. Rainproof louvers; 213. Agitator tank; 2131. End cap; 2132. Feed pipe; 2133. Vent pipe; 2134. Liquid outlet pipe; 2135. Solenoid valve; 214. Gear motor; 215. Electric air pump; 216. Mounting plate A; 217. Mounting plate B; 218. Agitator shaft; 2181. Agitator rod; 2182. Spiral blades;

[0039] 220. Mounting components; 221. Mounting bracket; 222. Connecting plate A; 223. Connecting plate B; 224. Shock absorber; 225. Mounting plate;

[0040] 230. Atomizing spray assembly; 231. Fixing rod; 232. Hollow rectangular plate; 233. Branch pipe A; 234. Atomizing nozzle; 235. Branch pipe B;

[0041] 240. Conveying pipe;

[0042] 300. Rotary tiller. Detailed Implementation

[0043] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0044] It should be noted that the following detailed descriptions are exemplary and intended to provide further illustration of the invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0045] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0046] Example 1:

[0047] like Figures 1-10As shown, a liquid fertilizer atomizing fertilization device includes an agricultural tractor 100, a liquid fertilizer atomizing fertilization mechanism 200, and a rotary tiller 300. The agricultural tractor 100 is equipped with a rotary tiller 300 for tilling farmland soil and a liquid fertilizer atomizing fertilization mechanism 200 for spraying liquid fertilizer onto farmland soil.

[0048] The liquid fertilizer atomizing fertilization mechanism 200 is equipped with a stirring component 210 for mixing liquid fertilizer and an atomizing spraying component 230 for spraying atomized liquid fertilizer. The stirring component 210 has mounting components 220 installed on both sides of its outer wall, and the stirring component 210 is fixedly connected to the agricultural tractor 100 through the mounting components 220.

[0049] The mixing assembly 210 includes a mixing tank 213 for holding liquid fertilizer. Inside the mixing tank 213 are a mixing shaft 218, a mixing rod 2181, and a spiral blade 2182. Both the mixing rod 2181 and the spiral blade 2182 are mounted on the outer wall of the mixing shaft 218, with the mixing rod 2181 positioned above the spiral blade 2182. The top end of the mixing shaft 218 extends through a sealed bearing at the center of the top of the mixing tank 213 into the interior of the protective cover 212 and is connected to a reduction motor 2 via a coupling. 14. The geared motor 214 is mounted on the upper surface of the mounting plate B217, and the output shaft of the geared motor 214 passes through the surface of the mounting plate B217. The geared motor 214, stirring shaft 218, stirring rod 2181, spiral blade 2182 and other structures are set up so that when the geared motor is started, it can drive the stirring rod 2181 and spiral blade 2182 on the stirring shaft 218 to rotate. The rotation of the spiral blade 2182 can lift the mixture in the lower part of the mixing tank 213 upward, and the stirring rod 2181 stirs the mixture.

[0050] An electric air pump 215 is installed on one side of the geared motor 214, and both the electric air pump 215 and the geared motor 214 are located inside the protective cover 212. The electric air pump 215 is installed on the upper surface of the mounting plate A216. The air outlet at the bottom of the electric air pump 215 passes through the mounting plate A216 and is connected to the air pipe 2133 through a pipe joint. The air pipe 2133 is located on the top side of the mixing tank 213. The lower surfaces of the mounting plate A216 and the mounting plate B217 are connected to the top of the mixing tank 213 through support rods. When the electric air pump 215 is started, it can pressurize the inside of the mixing tank 213. The flow rate of the liquid fertilizer sprayed by the atomizing nozzle 234 is adjusted by adjusting the air pressure inside the mixing tank 213.

[0051] A feeding pipe 2132 is provided on the other side of the top of the mixing tank 213. An end cap 2131 is installed at the top of the feeding pipe 2132. The inner wall of the end cap 2131 has an internal thread, and the outer wall of the feeding pipe 2132 has an external thread. The internal thread on the end cap 2131 and the external thread on the feeding pipe 2132 are threadedly connected. Because the internal thread on the end cap 2131 and the external thread on the feeding pipe 2132 are threadedly connected, planting personnel... To facilitate the disassembly and assembly of the end cap 2131, after the end cap 2131 is disassembled, the grower can add solid fertilizer, liquid fertilizer and water into the mixing tank 213 through the feeding pipe 2132. The bottom center of the mixing tank 213 is provided with a liquid outlet pipe 2134. Solenoid valves 2135 are provided on both the liquid outlet pipe 2134 and the vent pipe 2133. The solenoid valves 2135 can control the liquid outlet pipe 2134 and the vent pipe 2133 to be in the closed and open states.

[0052] The protective cover 212 is fixedly connected to the mixing tank 213 by fastening bolts. Rainproof louvers 2122 are provided on both outer walls of the protective cover 212, and a safety door 2121 is provided on the front wall of the protective cover 212. A battery box 211 is installed on the top of the protective cover 212, and a battery body 2111 is provided inside the battery box 211. The protective cover 212 and the rainproof louvers 2122 can protect the geared motor 214 and the electric air pump 215, preventing external rainwater from entering the geared motor 214 or the electric air pump 215 and causing damage to the geared motor 214 or the electric air pump 215. The battery body 2111 can provide power to the liquid fertilizer atomizing fertilization mechanism 200.

[0053] The atomizing spraying assembly 230 is provided with a hollow rectangular plate 232. A branch pipe A233 is provided at the center of the upper surface of the hollow rectangular plate 232, and a branch pipe B235 is provided on the lower surface of the hollow rectangular plate 232. The bottom end of the branch pipe B235 is connected to the atomizing nozzle 234 through a pipe joint. The atomizing nozzle 234 can atomize liquid fertilizer. Fixed brackets 221 are installed on both outer walls of the hollow rectangular plate 232. The top of the fixed brackets 221 is fixedly connected to the mixing tank 213 by fastening bolts. Because the top of the fixed brackets 221 is fixedly connected to the mixing tank 213 by fastening bolts, the atomizing spraying assembly 230 and the mixing assembly 210 can be disassembled and assembled.

[0054] Mounting assembly 220 is provided with a fixing bracket 221, which is mounted on the outer wall of mixing tank 213 and fixed to mixing tank 213 by welding. A connecting plate A222 is provided on the outer wall of one end of the fixing bracket 221. Connecting plate A222 is connected to connecting plate B223 via shock absorber 224. Connecting plate B223 is mounted on one side of the outer wall of fixing plate 225. Fixing plate 225 is mounted on the outer shell of agricultural tractor 100, and fixing plate 225 is connected to agricultural tractor 100. The outer shells of the tractor 100 are fixed together by welding. The shock absorber 224 can buffer and reduce the vibration of the liquid fertilizer atomizing fertilization mechanism 200 during the operation of the tractor 100. This prevents the tractor 100, the mounting component 220 and the liquid fertilizer atomizing fertilization mechanism 200 from breaking or separating due to large vibrations.

[0055] The top end of branch pipe A233 is connected to delivery pipe 240 via a pipe fitting, and the other end of delivery pipe 240 is connected to outlet pipe 2134 via a pipe fitting.

[0056] In use, the grower first pours solid fertilizer (urea), liquid fertilizer (agricultural microbial agent), and water into the mixing tank 213 through the feeding pipe 2132. The grower then starts the reduction motor 214, which drives the stirring rod 2181 and the spiral blade 2182 on the stirring shaft 218 to rotate. The rotation of the spiral blade 2182 lifts the mixture at the bottom of the mixing tank 213 upwards, while the stirring rod 2181 stirs the mixture, preventing undissolved solid fertilizer from settling in the mixing tank 213. The bottom of the 13 internal structure prevents the solid fertilizer from not completely dissolving, thus avoiding blockage of the conveying structure due to incomplete dissolution of the solid fertilizer during spraying and transportation caused by poor mixing. After the fertilizer is fully mixed and dissolved, the grower drives the agricultural tractor 100 in the field and keeps the rotary tiller 300 on the soil for rotary tillage. Before rotary tillage, the grower activates the liquid fertilizer atomizing fertilization mechanism 200, and the electromagnetic valves on the air pipe 2133 and the liquid outlet pipe 2134 are activated. When valve 2135 is open, the electric air pump 215 on the liquid fertilizer atomizing fertilization mechanism 200 can pressurize the inside of the mixing tank 213. Growers can adjust the air pressure inside the mixing tank 213 to regulate the flow rate of the liquid fertilizer sprayed from the atomizing nozzle 234, preventing excessive liquid fertilizer from entering the soil and causing poor subsequent crop growth. The liquid fertilizer in the mixing tank 213 flows through the delivery pipe 240 into the hollow rectangular plate 232 on the atomizing spraying assembly 230. Liquid fertilizer inside the hollow rectangular plate 232 flows into the atomizing nozzle 234. The atomizing nozzle 234 atomizes the liquid fertilizer and sprays it onto the soil between the rotary tiller 300 and the agricultural tractor 100. The soil sprayed with liquid fertilizer is then simultaneously tilled by the rotary tiller 300. This achieves simultaneous and efficient tillage of farmland soil and application of liquid fertilizer without increasing labor and power costs. It also allows the liquid fertilizer to be fully mixed with the farmland soil, achieving the goal of efficient and uniform application of liquid fertilizer to the farmland soil.

[0057] Example 2:

[0058] A fertilization method using a liquid fertilizer atomizing fertilization device includes the following steps:

[0059] S1: Pour solid fertilizer (2 kg potassium dihydrogen phosphate), liquid fertilizer (5 kg agricultural microbial agent, 5 kg compound microbial fertilizer) and 8 kg water into the mixing tank 213 through the feeding pipe 2132. The operator starts the reduction motor 214, which drives the stirring rod 2181 and the spiral blade 2182 on the stirring shaft 218 to rotate. The rotation of the spiral blade 2182 lifts the mixture at the bottom of the mixing tank 213 upwards, so that the stirring rod 2181 can fully stir the mixture.

[0060] S2: After the fertilizer is fully mixed and dissolved, the staff drives the agricultural tractor 100 in the field and makes the rotary tiller 300 on the soil to perform rotary tillage. Before rotary tillage, the staff starts the liquid fertilizer atomizing fertilization mechanism 200. When the solenoid valve 2135 on the air pipe 2133 and the liquid outlet pipe 2134 is in the open state, the electric air pump 215 on the liquid fertilizer atomizing fertilization mechanism 200 can pressurize the inside of the mixing tank 213.

[0061] S3: The flow rate of liquid fertilizer sprayed by the atomizing nozzle 234 is adjusted by adjusting the air pressure in the mixing tank 213. The liquid fertilizer in the mixing tank 213 flows into the hollow rectangular plate 232 on the atomizing spraying assembly 230 through the delivery pipe 240. The liquid fertilizer in the hollow rectangular plate 232 flows into the atomizing nozzle 234. The atomizing nozzle 234 atomizes the liquid fertilizer and sprays it onto the soil between the rotary tiller 300 and the agricultural tractor 100. The soil sprayed with liquid fertilizer is then synchronously tilled by the rotary tiller 300.

[0062] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A liquid fertilizer atomizing fertilizer device comprising an agricultural tractor (100), a liquid fertilizer atomizing fertilizer mechanism (200) of a liquid fertilizer, and a rotary cultivator (300), characterized in that: The agricultural tractor (100) is provided with a rotary cultivator (300) for rotary cultivation of farmland soil and a liquid fertilizer atomization fertilization mechanism (200) for spraying liquid fertilizer on farmland soil; The liquid fertilizer atomization fertilization mechanism (200) is provided with a stirring assembly (210) for stirring and mixing liquid fertilizer and an atomization spraying assembly (230) for spraying atomized liquid fertilizer, and the outer wall of the stirring assembly (210) is provided with a mounting assembly (220) on both sides, and the stirring assembly (210) is fixedly connected with the agricultural tractor (100) through the mounting assembly (220).

2. The liquid fertilizer fog application apparatus of claim 1, wherein: The stirring assembly (210) is provided with a stirring tank (213), and the inside of the stirring tank (213) is provided with a stirring shaft (218), a stirring rod (2181) and a spiral blade (2182), the stirring rod (2181) and the spiral blade (2182) are both mounted on the outer wall of the stirring shaft (218), and the stirring rod (2181) is located above the spiral blade (2182), the top end of the stirring shaft (218) extends into the inside of the protective cover (212) through the sealing bearing at the top center position of the stirring tank (213) and is connected with the speed reducer motor (214) through the shaft coupling, the speed reducer motor (214) is mounted on the upper surface of the mounting plate B (217), and the output shaft on the speed reducer motor (214) penetrates the surface of the mounting plate B (217).

3. The liquid fertilizer fog application apparatus of claim 2, wherein: The side of the speed reducer motor (214) is provided with an electric air pump (215), and the electric air pump (215) and the speed reducer motor (214) are both located in the inside of the protective cover (212), the electric air pump (215) is mounted on the upper surface of the mounting plate A (216), the air outlet at the bottom end of the electric air pump (215) penetrates the mounting plate A (216) and is connected with the breather pipe (2133) through the pipe joint, and the breather pipe (2133) is arranged at the top side of the stirring tank (213), the lower surfaces of the mounting plate A (216) and the mounting plate B (217) are connected with the top end of the stirring tank (213) through the supporting rods.

4. The liquid fertilizer fog application apparatus of claim 3, wherein: The other side of the top end of the stirring tank (213) is provided with a feeding pipe (2132), the top end of the feeding pipe (2132) is provided with an end cover (2131), the inner wall of the end cover (2131) is provided with an internal thread, the outer wall of the feeding pipe (2132) is provided with an external thread, and the internal thread of the end cover (2131) and the external thread of the feeding pipe (2132) are threadedly connected, the center position of the bottom end of the stirring tank (213) is provided with a liquid outlet pipe (2134), and the electromagnetic valves (2135) are arranged on the liquid outlet pipe (2134) and the breather pipe (2133).

5. The liquid fertilizer fog application apparatus of claim 3, wherein: The protective cover body (212) is fixedly connected with the stirring tank (213) through fastening bolts, both side outer walls of the protective cover body (212) are provided with rainproof shutters (2122), and the front end wall of the protective cover body (212) is provided with a safety door (2121); a battery box (211) is installed at the top end of the protective cover body (212), and the inside of the battery box (211) is provided with a battery body (2111).

6. The liquid fertilizer fog application apparatus of claim 4, wherein: The hollow rectangular plate (232) is provided with a branch pipe A (233) at the center position of the upper surface, and a branch pipe B (235) is arranged on the lower surface of the hollow rectangular plate (232); the bottom end of the branch pipe B (235) is connected with the atomizing nozzle (234) through a pipe joint; both side outer walls of the hollow rectangular plate (232) are provided with fixed supports (221), and the top end of the fixed support (221) is fixedly connected with the stirring tank (213) through fastening bolts.

7. The liquid fertilizer fog application apparatus of claim 1, wherein: The mounting assembly (220) is provided with a fixed support (221) installed on the outer wall of the stirring tank (213) and fixed between the fixed support (221) and the stirring tank (213) through welding; one end of the fixed support (221) is provided with a connecting plate A (222), the connecting plate A (222) is connected with a connecting plate B (223) through a shock absorber (224), and the connecting plate B (223) is installed on one side of the fixed plate (225); the fixed plate (225) is installed on the outer shell of the agricultural tractor (100), and the fixed plate (225) is fixed between the fixed plate (225) and the outer shell of the agricultural tractor (100) through welding.

8. The liquid fertilizer fog application apparatus of claim 6, wherein: The top end of the branch pipe A (233) is connected with the conveying pipe (240) through a pipe joint, and the other end of the conveying pipe (240) is connected with the liquid outlet pipe (2134) through a pipe joint.

9. The method of applying liquid fertilizer according to claim 6, wherein: The method comprises the following steps: S1: first, the solid fertilizer, liquid fertilizer and water are poured into the stirring tank (213) from the feeding pipe (2132), the staff starts the speed reducer (214), the speed reducer (214) drives the stirring rod (2181) and the spiral blade (2182) on the stirring shaft (218) to rotate, the mixture below the inside of the stirring tank (213) is lifted up by the rotation of the spiral blade (2182), so that the mixture is fully stirred by the stirring rod (2181); S2: when the fertilizer is fully mixed and dissolved, the staff drives the agricultural tractor (100) to drive in the farmland and makes the rotary tiller (300) located on the farmland soil to rotary till, the staff starts the liquid fertilizer atomization fertilization mechanism (200) before rotary till, when the electromagnetic valves (2135) on the air pipe (2133) and the liquid outlet pipe (2134) are in the open state, the electric air pump (215) on the liquid fertilizer atomization fertilization mechanism (200) can pressurize the inside of the stirring tank (213). S3: Adjust the flow of liquid fertilizer sprayed by the atomizing nozzle (234) by adjusting the air pressure in the stirring tank (213), the liquid fertilizer in the stirring tank (213) flows into the hollow rectangular plate (232) on the atomizing spraying assembly (230) through the conveying pipe (240), the liquid fertilizer in the hollow rectangular plate (232) flows into the atomizing nozzle (234), the atomizing nozzle (234) atomizes the liquid fertilizer and sprays it to the soil between the rotary cultivator (300) and the agricultural tractor (100), and the soil sprayed with the liquid fertilizer is then simultaneously rotary cultivated by the rotary cultivator (300).

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