Sowing and fertilizing system and method for farming

By introducing a control module and sensor system into the corn planter, the seeding and fertilization rates are detected in real time, and the motor speed is adjusted. Combined with soil detection and anti-tangling devices, the problems of discontinuous fertilization and poor seeding quality are solved, achieving precise seeding and fertilization and improving the operating efficiency and quality of the corn planter.

CN121128384APending Publication Date: 2025-12-16JILIN KANGDA AGRI MACHINERY
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Patent Information

Application Number
CN202511463454.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-10-14
Publication Date
2025-12-16

AI Technical Summary

Technical Problem

Existing corn planters are prone to interruptions in fertilization during operation, resulting in discontinuous fertilization. It is difficult to accurately control the nitrogen, phosphorus, and potassium content in the field. Uneven soil surface and excessive mulch lead to poor sowing quality. Furthermore, existing devices lack the accuracy in detecting and measuring fertilizer entering the soil, and cannot meet the growth characteristics and planting requirements of different crops.

Method used

Employing a control module, fertilizer dispensing mechanism, medicine tank assembly, nozzle height adjustment mechanism, and soil detection sensor, the system adjusts the speed of the seed dispensing motor and fertilizer dispensing motor by real-time detection of seeding and fertilizer application rates. Combined with soil moisture and nitrogen, phosphorus, and potassium content sensors, it achieves precise fertilization and seeding. Equipped with an anti-tangling blade assembly to clear surface obstacles, it ensures continuous fertilization and seeding quality.

Benefits of technology

It enables precise control of nitrogen, phosphorus, and potassium content in the field, improves sowing quality, ensures the continuity and precision of fertilization, adapts to the growth characteristics of different soils and crops, reduces seed displacement and straw impact, and enhances the efficiency and reliability of overall agronomic operations.

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Abstract

The invention relates to the field of agricultural machinery, in particular to a sowing and fertilizing system and method for farming. Comprising a control module, a fertilizer discharging mechanism, a pesticide box assembly, a nozzle height adjusting mechanism and a soil detection sensor, the control module comprises a sowing controller and a fertilization controller, the sowing controller is used for detecting the sowing amount in real time, the fertilization controller is used for detecting the fertilization amount in real time, and the sowing controller and the fertilization controller are electrically connected with the seed discharging motor and the fertilizer discharging motor; the rotating speeds of the seed discharging motor and the fertilizer discharging motor are respectively adjusted according to the detected sowing amount and the detected fertilizer applying amount. By arranging the independent fertilization system, continuity of fertilization operation is achieved, the problem that fertilization is interrupted in the prior art is solved, accurate control over the content of nitrogen, phosphorus and potassium in a field is ensured, and the seeding quality is remarkably improved.
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Description

Technical Field

[0001] This invention relates to the field of agricultural machinery, and more specifically to a sowing and fertilization system and method for farming. Background Technology

[0002] With the development of agricultural mechanization, farming operations such as sowing and fertilization are gradually being replaced by machines, reducing the burden on farmers and effectively improving farming efficiency. Corn is one of the important food crops, and mechanized planting requires the use of corn planting equipment. During the "Three Summers" corn planting season, the seeder is an essential piece of planting machinery, especially in the stage of seizing the opportunity to plant corn while the soil is moist and the stubble is close to the ground, where the previous crop has a large amount of straw covering the soil and the planting environment is harsh.

[0003] Existing corn planters are all composite planters, performing seed and fertilizer application in one operation. Specifically, the front tiller loosens the soil, a depth-limiting wheel controls the depth of the tiller, and after loosening, a fertilizer applicator connected to the fertilizer applicator opens furrows for fertilization. The rear seed metering device dispenses seeds, and the seeding and covering device completes the sowing and covering process. However, in actual use, factors such as uneven soil surface and machine movement can cause discrepancies between the actual position of the seeds or fertilizer and the theoretical range. These discrepancies can potentially affect subsequent plant growth.

[0004] Furthermore, existing corn planters interrupt the fertilization process during operation, resulting in uneven fertilization and an inability to accurately control the nitrogen, phosphorus, and potassium content in the field. Simultaneously, when soil moisture is high and there is a large amount of straw covering the surface, the planter must be lifted and cleared after each section of operation, preventing normal sowing. During the process of loosening soil and carrying away straw, seeds are also dragged along, causing displacement and making positioning difficult. Therefore, how to solve these problems and improve corn sowing quality has become an urgent technical issue to be addressed. Summary of the Invention

[0005] Existing technologies suffer from problems such as discontinuous fertilization in corn planters, uneven soil surfaces, and poor sowing quality due to excessive mulch. Therefore, to address these issues, this invention provides a sowing and fertilization system and method for agricultural use.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A seeding and fertilization system for farming includes: a control module, a fertilizer dispensing mechanism, a pesticide tank assembly, a nozzle height adjustment mechanism, and a soil detection sensor; The control module includes a seeding controller and a fertilizer controller. The seeding controller is used to detect the seeding amount in real time, and the fertilizer controller is used to detect the fertilizer application amount in real time. Both the seeding controller and the fertilizer controller are electrically connected to the seed metering motor and the fertilizer metering motor, respectively, and are used to adjust the speed of the seed metering motor and the fertilizer metering motor according to the detected seeding amount and fertilizer application amount.

[0007] In some embodiments of this application, the fertilizer discharge mechanism includes a fertilizer discharger and a fertilizer discharge motor. The fertilizer discharger has a fertilizer filling space, the size of which is adjustable and used to hold fertilizer. The discharge port of the fertilizer discharger is equipped with a fertilizer discharge valve, the opening of which is adjustable to control the amount of fertilizer discharged.

[0008] In some embodiments of this application, the medicine box assembly includes a medicine box and a medicine box weight sensor. The medicine box is used to store the medicine to be sprayed, and the medicine box weight sensor is used to detect the weight of the medicine box. The precise control of the amount of medicine to be sprayed is achieved through a pressure pump and a linear actuator.

[0009] In some embodiments of this application, the nozzle height adjustment mechanism includes a nozzle, a nozzle support plate, a nozzle height detection component, and a linear driver. The nozzle support plate is fixed on the frame, the nozzle is mounted on the nozzle support plate, the nozzle height detection component is used to detect the distance between the nozzle and the ground in real time, and the linear driver controls the height adjustment of the nozzle according to the detection result to ensure that the distance between the nozzle and the ground remains constant.

[0010] In some embodiments of this application, the soil detection sensor includes a soil moisture sensor and a soil fertilizer content sensor, used to detect soil moisture and nitrogen, phosphorus and potassium content. The detection data of the sensor is transmitted to a controller for automatically adjusting the amount and depth of fertilizer application based on the detection results.

[0011] In some embodiments of this application, the frame is also provided with a pressure roller for detecting the contact pressure between the machine and the ground during the machine's movement. The control system automatically adjusts the lifting and lowering of the pressure roller to ensure that the pressure between the machine and the ground remains balanced during the machine's movement.

[0012] In some embodiments of this application, the front of the frame is provided with an anti-tangle blade assembly, including at least four anti-tangle blades, for clearing surface straw and weeds before sowing to prevent them from affecting the sowing operation.

[0013] Accordingly, this application also provides a sowing and fertilization method for agriculture, applied to the aforementioned sowing and fertilization system for agriculture, comprising: Real-time monitoring of seeding and fertilizer application rates; Based on the seeding rate and the fertilizer application rate, the rotation speeds of the seed metering motor and the fertilizer metering motor are adjusted respectively.

[0014] Compared with the prior art, the present invention provides a sowing and fertilization system and method for farming, which has the following beneficial effects: 1. This invention, by setting up an independent fertilization system and precisely applying fertilizer around each seed, ensures accurate control of nitrogen, phosphorus, and potassium content near the seeds in the field, significantly improving sowing quality; 2. The present invention adopts an adjustable fertilization mechanism, which can flexibly adjust the amount and depth of fertilization according to different soil moisture and surface environment, effectively solving the problem of seed or fertilizer position error caused by factors such as uneven soil and mechanical movement in the prior art. 3. This invention designs a special straw cleaning device that can effectively handle residual straw and dry soil on the soil surface, preventing them from affecting the seeder and crop seeding, and ensuring the smooth progress of the sowing process and crop germination. 4. The fertilization system of the present invention adopts advanced sensors and precision measuring devices, which realizes high precision and efficiency in fertilizer entry detection and fertilizer depth measurement, accurately controls fertilization parameters, and improves the accuracy and reliability of fertilization. 5. The fertilization system of the present invention has a compact structure and is easy to operate. It can adapt to the growth characteristics and planting requirements of different crops and has good practicality and promotion value. Attached Figure Description

[0015] Figure 1 This is a functional block diagram of the sowing and fertilization system for farming according to the present invention; Figure 2 This is a flowchart of the sowing and fertilization method for farming according to the present invention. Detailed Implementation

[0016] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0017] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0018] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0019] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the communication between the inner sides of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0020] The existing technology has the following drawbacks: 1. Existing corn planters experience interruptions in fertilization during operation, resulting in discontinuous fertilization and difficulty in accurately controlling the nitrogen, phosphorus, and potassium content in the field, which affects the planting quality. 2. When the soil moisture is high and the surface is covered with a lot of straw, the seeder must stop to clean up after working a certain distance, making it impossible to sow normally. In addition, the process of loosening the soil and removing the straw will cause the seeds to shift. 3. Existing fertilizer penetration detection and fertilizer depth measurement devices are insufficient in terms of measurement accuracy and efficiency, and cannot accurately control the amount and depth of fertilizer application; 4. Existing equipment has limitations in adjusting the length and number of feed pipes and discharge channels, making it difficult to meet the growth characteristics and planting requirements of different crops.

[0021] The purpose of this invention is to overcome the shortcomings of existing technologies and provide a sowing and fertilization system and method for agricultural use. (See attached document.) Figure 1 The system shown includes a control module, a fertilizer dispensing mechanism, a medicine tank assembly, a nozzle height adjustment mechanism, and a soil detection sensor.

[0022] The control module includes a seeding controller and a fertilizer controller. The seeding controller is used to detect the seeding rate in real time, and the fertilizer controller is used to detect the fertilizer application rate in real time. Both the seeding controller and the fertilizer controller are electrically connected to the seed metering motor and the fertilizer metering motor, respectively, and are used to adjust the speed of the seed metering motor and the fertilizer metering motor according to the detected seeding rate and fertilizer application rate.

[0023] The fertilizer discharge mechanism includes a fertilizer discharger and a fertilizer discharge motor. The fertilizer discharger has a fertilizer filling space, the size of which is adjustable, for holding fertilizer. The discharge port of the fertilizer discharger is equipped with a fertilizer discharge valve, the opening of which is adjustable to control the amount of fertilizer discharged.

[0024] The medicine tank assembly includes a medicine tank and a medicine tank weight sensor. The medicine tank is used to store the medicine to be sprayed, and the medicine tank weight sensor is used to detect the weight of the medicine tank. The precise control of the amount of medicine to be sprayed is achieved through a pressure pump and a linear actuator.

[0025] The nozzle height adjustment mechanism includes a nozzle, a nozzle support plate, a nozzle height detection component, and a linear actuator. The nozzle support plate is fixed on the frame, and the nozzle is mounted on the nozzle support plate. The nozzle height detection component is used to detect the distance between the nozzle and the ground in real time. The linear actuator controls the nozzle height adjustment according to the detection result to ensure that the distance between the nozzle and the ground remains constant.

[0026] The soil testing sensors include soil moisture sensors and soil fertilizer content sensors, which are used to detect soil moisture and nitrogen, phosphorus and potassium content. The sensor data is transmitted to the controller to automatically adjust the amount of fertilizer applied based on the test results.

[0027] The frame is also equipped with pressure rollers to detect the pressure of the machine in contact with the ground during its movement. The control system automatically adjusts the lifting and lowering of the pressure rollers to ensure that the pressure between the machine and the ground remains balanced during the machine's movement.

[0028] The front of the frame is equipped with an anti-tangle blade assembly, including at least four anti-tangle blades, which are used to clear straw, weeds and dry soil from the ground before sowing to prevent them from affecting the sowing operation.

[0029] Understandably, this technical solution proposes an intelligent agricultural operation system that integrates sowing, fertilization, spraying, soil testing, and surface treatment functions. Its core lies in achieving high-precision and high-efficiency agronomic operations through multi-module collaborative control. The system's control center is the control module, which integrates a sowing controller and a fertilization controller. The sowing controller collects real-time sowing information and dynamically adjusts the motor speed through its electrical connection with the seed metering motor to ensure uniform seed distribution. The fertilization controller monitors the amount of fertilizer used during fertilization and controls the output speed of the fertilizer metering motor accordingly, enabling variable fertilization control for different plots and crops, thereby improving resource utilization and reducing environmental burden.

[0030] As can be seen, the control module consists of a seeding controller and a fertilizer controller. The seeding controller is responsible for real-time monitoring of the seed dispensing amount during the sowing process, while the fertilizer controller synchronously monitors changes in the fertilizer application rate. Both continuously acquire the actual sowing and fertilization status under the current operating conditions through a data acquisition and feedback mechanism. During operation, the seeding controller and fertilizer controller are electrically connected to the seed metering motor and fertilizer metering motor, respectively. By analyzing and processing the collected data, the system can adjust the speed of the seed metering motor and fertilizer metering motor in real time to ensure that the seed and fertilizer dispensing amounts are always within the preset optimal range. This closed-loop control method significantly improves the synchronization and accuracy of sowing and fertilization, reducing problems such as missed sowing, double sowing, and over-fertilization. A major technical highlight of this system is the realization of "seed-fertilizer co-position"—that is, precisely dispensing the appropriate amount of fertilizer around each seed. This targeted fertilization method effectively improves the availability of fertilizer near the crop roots, ensuring that major nutrients such as nitrogen, phosphorus, and potassium are concentrated in the soil area required for seed germination, thereby maximizing early growth and development.

[0031] As a key component of fertilizer delivery, the fertilizer discharge mechanism adopts an adjustable fertilizer-filling space structure design, which can automatically adjust the volume of fertilizer it can hold according to different tasks, adapting to different fertilizer types and operational scales. Simultaneously, a fertilizer discharge valve is installed at the outlet, the opening of which can be adjusted in real time according to operational needs, ensuring a high degree of responsiveness and accuracy in fertilizer discharge under controller control. This design effectively avoids the clogging or over-fertilization problems common in traditional mechanical fertilization equipment, improving the continuity of equipment operation and the accuracy of fertilization.

[0032] It can be seen that the adjustable fertilizer filling space structure design allows the volume of the fertilizer storage chamber to automatically expand or shrink according to operational needs. Dynamic volume adjustment can be achieved through structures such as sliding partitions, telescopic cavities, or modular splicing units, thus adapting to fertilizer requirements of different densities, particle sizes, or fertilizer formulations, and optimizing the center of gravity and feeding efficiency. Secondly, the fertilizer discharge valve at the outlet employs a controllable opening mechanism, which can be based on an electric valve, proportional control slide plate, or rotary valve plate structure. This allows for precise control of the opening size according to operational instructions, achieving continuous and quantitative fertilizer dispensing. The valve responds in real time under the controller's command, ensuring that the discharge rate and fertilizer application rate are precisely matched to agronomic parameters. This entire structure, through a dual regulation mechanism of volume and flow, effectively reduces phenomena such as clogging, fertilizer spillage, or localized over-application, improving the overall fertilization uniformity and operational reliability of the system.

[0033] In terms of spraying, the pesticide tank assembly monitors the remaining pesticide level in real time through a tank weight sensor. Combined with the linkage between the pressure pump and the linear actuator, it achieves precise control of the spray flow rate. This feedback control mechanism not only helps ensure uniform pesticide spraying and avoids duplicate application or insufficient spraying, but also provides real-time data support for subsequent pesticide replenishment, improving the continuity of operations and the scientific nature of crop protection.

[0034] To adapt to varying terrain and the different growth stages of crops, the system is equipped with a nozzle height adjustment mechanism. This mechanism consists of a nozzle height detection component and a linear actuator, which senses the distance between the nozzle and the ground in real time and automatically controls the nozzle's raising and lowering to ensure a constant spraying distance. This design improves the targeting and uniformity of spraying operations, effectively reduces pesticide drift or spray dead zones, and is suitable for more complex farmland terrain environments.

[0035] Soil monitoring sensors are a key indicator of the system's intelligence. These sensors, including soil moisture and fertilizer content sensors, simultaneously collect data on core nutrients such as moisture, nitrogen, phosphorus, and potassium in the soil plot and transmit the data to the controller in real time. Based on this sensor data, the controller dynamically adjusts fertilization strategies, including fertilization depth and amount, enabling the system to perform precision agricultural management. This data-driven control mechanism can accurately allocate resources according to different soil conditions, reducing agricultural non-point source pollution and aligning with the development direction of green agriculture.

[0036] In addition, the press rollers on the frame are used to sense the contact pressure between the equipment and the ground during operation. The system adjusts the lifting position of the press rollers in real time through pressure sensor signals, and uses gas springs or hydraulic cylinders in the four-bar linkage to realize the real-time adjustment of the ground pressure, thereby maintaining the stability of operation and the pressing effect under different terrain or soil compaction conditions, ensuring consistent sowing depth, and thus improving seed germination rate and overall agronomic quality.

[0037] Finally, the anti-tangle blade assembly at the front of the frame, with multiple anti-tangle blades rotating in tandem, effectively removes surface weeds, straw, and other obstacles before operation, preventing them from tangling with the sowing mechanism or affecting fertilization, further improving operational smoothness and crop root environment quality. The introduction of this structure gives the machine pre-treatment capabilities for field preparation, reducing manual intervention and providing a solid foundation for integrated agricultural equipment.

[0038] See Figure 2 As shown, the present invention also provides a sowing and fertilization method for farming, applied to a sowing and fertilization system for farming, comprising: Step S100: Real-time monitoring of seeding rate and fertilizer application rate; Step S200: Adjust the speed of the seed metering motor and the fertilizer metering motor respectively based on the seeding amount and fertilizer application amount.

[0039] Example 1: A sowing and fertilization system and method for farming includes a control module, a fertilizer dispensing mechanism, a medicine tank assembly, a nozzle height adjustment mechanism, and a soil detection sensor.

[0040] The control module includes a seeding controller and a fertilizer controller. The seeding controller is used to detect the seeding rate in real time, and the fertilizer controller is used to detect the fertilizer application rate in real time. Both the seeding controller and the fertilizer controller are electrically connected to the seed metering motor and the fertilizer metering motor, respectively, and are used to adjust the speed of the seed metering motor and the fertilizer metering motor according to the detected seeding rate and fertilizer application rate.

[0041] The fertilizer discharge mechanism includes a fertilizer discharger and a fertilizer discharge motor. The fertilizer discharger has a fertilizer filling space, the size of which is adjustable, for holding fertilizer. The discharge port of the fertilizer discharger is equipped with a fertilizer discharge valve, the opening of which is adjustable to control the amount of fertilizer discharged.

[0042] The medicine tank assembly includes a medicine tank and a medicine tank weight sensor. The medicine tank is used to store the medicine to be sprayed, and the medicine tank weight sensor is used to detect the weight of the medicine tank. The precise control of the amount of medicine to be sprayed is achieved through a pressure pump and a linear actuator.

[0043] The nozzle height adjustment mechanism includes a nozzle, a nozzle support plate, a nozzle height detection component, and a linear actuator. The nozzle support plate is fixed on the frame, and the nozzle is mounted on the nozzle support plate. The nozzle height detection component is used to detect the distance between the nozzle and the ground in real time. The linear actuator controls the nozzle height adjustment according to the detection result to ensure that the distance between the nozzle and the ground remains constant.

[0044] The soil testing sensors include soil moisture sensors and soil fertilizer content sensors, which are used to detect soil moisture and nitrogen, phosphorus and potassium content. The sensor data is transmitted to the controller, which automatically adjusts the amount and depth of fertilizer application based on the test results.

[0045] The frame is also equipped with pressure rollers to detect the pressure of the machine in contact with the ground during its movement. The control system automatically adjusts the lifting and lowering of the pressure rollers to ensure that the pressure between the machine and the ground remains balanced during the machine's movement.

[0046] The front of the frame is equipped with an anti-tangle blade assembly, including at least four anti-tangle blades, which are used to clear straw and weeds from the ground before sowing to prevent them from affecting the sowing operation.

[0047] Example 2: A sowing and fertilization system and method for farming includes a control module, a fertilizer dispensing mechanism, a medicine tank assembly, a nozzle height adjustment mechanism, and a soil detection sensor.

[0048] The control module includes a seeding controller and a fertilizer controller. The seeding controller is used to detect the seeding rate in real time, and the fertilizer controller is used to detect the fertilizer application rate in real time. Both the seeding controller and the fertilizer controller are electrically connected to the seed metering motor and the fertilizer metering motor, respectively, and are used to adjust the speed of the seed metering motor and the fertilizer metering motor according to the detected seeding rate and fertilizer application rate.

[0049] The fertilizer discharge mechanism includes a fertilizer discharger and a fertilizer discharge motor. The fertilizer discharger has a fertilizer filling space, the size of which is adjustable, for holding fertilizer. The discharge port of the fertilizer discharger is equipped with a fertilizer discharge valve, the opening of which is adjustable to control the amount of fertilizer discharged.

[0050] The medicine tank assembly includes a medicine tank and a medicine tank weight sensor. The medicine tank is used to store the medicine to be sprayed, and the medicine tank weight sensor is used to detect the weight of the medicine tank. The precise control of the amount of medicine to be sprayed is achieved through a pressure pump and a linear actuator.

[0051] The nozzle height adjustment mechanism includes a nozzle, a nozzle support plate, a nozzle height detection component, and a linear actuator. The nozzle support plate is fixed on the frame, and the nozzle is mounted on the nozzle support plate. The nozzle height detection component is used to detect the distance between the nozzle and the ground in real time. The linear actuator controls the nozzle height adjustment according to the detection result to ensure that the distance between the nozzle and the ground remains constant.

[0052] The soil testing sensors include soil moisture sensors and soil fertilizer content sensors, which are used to detect soil moisture and nitrogen, phosphorus and potassium content. The sensor data is transmitted to the controller, which automatically adjusts the amount and depth of fertilizer application based on the test results.

[0053] The frame is also equipped with pressure rollers to detect the pressure of the machine in contact with the ground during its movement. The control system automatically adjusts the lifting and lowering of the pressure rollers to ensure that the pressure between the machine and the ground remains balanced during the machine's movement.

[0054] The front of the frame is equipped with an anti-tangle blade assembly, including at least four anti-tangle blades, which are used to clear straw and weeds from the ground before sowing to prevent them from affecting the sowing operation.

[0055] Example 3: A sowing and fertilization system and method for farming includes a control module, a fertilizer dispensing mechanism, a medicine tank assembly, a nozzle height adjustment mechanism, and a soil detection sensor.

[0056] The control module includes a seeding controller and a fertilizer controller. The seeding controller is used to detect the seeding rate in real time, and the fertilizer controller is used to detect the fertilizer application rate in real time. Both the seeding controller and the fertilizer controller are electrically connected to the seed metering motor and the fertilizer metering motor, respectively, and are used to adjust the speed of the seed metering motor and the fertilizer metering motor according to the detected seeding rate and fertilizer application rate.

[0057] The fertilizer discharge mechanism includes a fertilizer discharger and a fertilizer discharge motor. The fertilizer discharger has a fertilizer filling space, the size of which is adjustable, for holding fertilizer. The discharge port of the fertilizer discharger is equipped with a fertilizer discharge valve, the opening of which is adjustable to control the amount of fertilizer discharged.

[0058] The medicine tank assembly includes a medicine tank and a medicine tank weight sensor. The medicine tank is used to store the medicine to be sprayed, and the medicine tank weight sensor is used to detect the weight of the medicine tank. The precise control of the amount of medicine to be sprayed is achieved through a pressure pump and a linear actuator.

[0059] The nozzle height adjustment mechanism includes a nozzle, a nozzle support plate, a nozzle height detection component, and a linear actuator. The nozzle support plate is fixed on the frame, and the nozzle is mounted on the nozzle support plate. The nozzle height detection component is used to detect the distance between the nozzle and the ground in real time. The linear actuator controls the nozzle height adjustment according to the detection result to ensure that the distance between the nozzle and the ground remains constant.

[0060] The soil testing sensors include soil moisture sensors and soil fertilizer content sensors, which are used to detect soil moisture and nitrogen, phosphorus and potassium content. The sensor data is transmitted to the controller, which automatically adjusts the amount and depth of fertilizer application based on the test results.

[0061] The frame is also equipped with pressure rollers to detect the pressure of the machine in contact with the ground during its movement. The control system automatically adjusts the lifting and lowering of the pressure rollers to ensure that the pressure between the machine and the ground remains balanced during the machine's movement.

[0062] The front of the frame is equipped with an anti-tangle blade assembly, including at least four anti-tangle blades, which are used to clear straw and weeds from the ground before sowing to prevent them from affecting the sowing operation.

[0063] In summary, by setting up an independent fertilization system, this invention achieves continuous fertilization operations, avoids the problem of fertilization interruption in existing technologies, ensures precise control of nitrogen, phosphorus, and potassium content in the field, and significantly improves sowing quality.

[0064] The above description is merely one embodiment of the present invention, but it cannot be used to limit the scope of the present invention. Any structural changes made based on the present invention, as long as they do not lose the essence of the present invention, should be considered to fall within the protection scope of the present invention and be subject to its restrictions.

[0065] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working process and related descriptions of the system described above can be found in the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0066] It should be noted that the system provided in the above embodiments is only illustrated by the division of the above functional modules. In practical applications, the above functions can be assigned to different functional modules as needed, that is, the modules or steps in the embodiments of the present invention can be further decomposed or combined. For example, the modules in the above embodiments can be merged into one module, or further divided into multiple sub-modules to complete all or part of the functions described above. The names of the modules and steps involved in the embodiments of the present invention are only for distinguishing the various modules or steps and are not considered as an improper limitation of the present invention.

[0067] Those skilled in the art will recognize that the modules and method steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both. The programs corresponding to the software modules and method steps can be placed in random access memory (RAM), main memory, read-only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disks, removable disks, CD-ROMs, or any other form of storage medium known in the art. To clearly illustrate the interchangeability of electronic hardware and software, the components and steps of the various examples have been generally described in terms of functionality in the foregoing description. Whether these functions are implemented in electronic hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the invention.

[0068] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent in such process, method, article, or apparatus / device.

[0069] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will all fall within the scope of protection of the present invention.

[0070] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention.

Claims

1. A sowing and fertilization system for agricultural use, characterized in that, Includes: control module, fertilizer dispensing mechanism, medicine tank assembly, nozzle height adjustment mechanism, and soil detection sensor; The control module includes a seeding controller and a fertilizer controller. The seeding controller is used to detect the seeding amount in real time, and the fertilizer controller is used to detect the fertilizer application amount in real time. Both the seeding controller and the fertilizer controller are electrically connected to the seed metering motor and the fertilizer metering motor, respectively, and are used to adjust the speed of the seed metering motor and the fertilizer metering motor according to the detected seeding amount and fertilizer application amount.

2. The sowing and fertilization system for farming according to claim 1, characterized in that, The fertilizer discharge mechanism includes a fertilizer discharger and a fertilizer discharge motor. The fertilizer discharger has a fertilizer filling space, the size of which is adjustable, for accommodating fertilizer. The discharge port of the fertilizer discharger is equipped with a fertilizer discharge valve, the opening of which is adjustable to control the amount of fertilizer discharged.

3. The sowing and fertilization system for farming according to claim 2, characterized in that, The medicine box assembly includes a medicine box and a medicine box weight sensor. The medicine box is used to store the medicine to be sprayed, and the medicine box weight sensor is used to detect the weight of the medicine box. The precise control of the amount of medicine to be sprayed is achieved through a pressure pump and a linear actuator.

4. The sowing and fertilization system for farming according to claim 3, characterized in that, The nozzle height adjustment mechanism includes a nozzle, a nozzle support plate, a nozzle height detection component, and a linear driver. The nozzle support plate is fixed on the frame, and the nozzle is mounted on the nozzle support plate. The nozzle height detection component is used to detect the distance between the nozzle and the ground in real time. The linear driver controls the height adjustment of the nozzle according to the detection result to ensure that the distance between the nozzle and the ground remains constant.

5. The sowing and fertilization system for farming according to claim 4, characterized in that, The soil detection sensor includes a soil moisture sensor and a soil fertilizer content sensor, used to detect soil moisture and nitrogen, phosphorus and potassium content. The detection data of the sensor is transmitted to the controller, which is used to automatically adjust the amount and depth of fertilizer application based on the detection results.

6. The sowing and fertilization system for farming according to claim 5, characterized in that, The frame is also equipped with a pressure roller, which is used to detect the pressure of the machine in contact with the ground during its movement. The control system automatically adjusts the lifting and lowering of the pressure roller to ensure that the pressure between the machine and the ground remains balanced during the movement of the machine.

7. The sowing and fertilization system for farming according to claim 6, characterized in that, The front of the frame is equipped with an anti-tangle blade assembly, including at least four anti-tangle blades, which are used to clear straw and weeds from the ground before sowing to prevent them from affecting the sowing operation.

8. A method for sowing and fertilizing in agriculture, applied to the sowing and fertilizing system for agriculture as described in any one of claims 1-7, characterized in that, include: Real-time monitoring of seeding and fertilizer application rates; Based on the seeding rate and the fertilizer application rate, the rotation speeds of the seed metering motor and the fertilizer metering motor are adjusted respectively.