Field crop spraying is used in commercial crop production to distribute crop protection treatments and other permitted liquid agricultural inputs across open fields. The operation may involve herbicide, insecticide, fungicide or liquid fertilizer application, depending on the crop management program and the approved agricultural use.
For commercial farms and agricultural service providers, the spraying system needs to do more than move liquid from a tank to a boom. Equipment selection must consider field accessibility, crop protection requirements, application consistency, operator safety, spray control, machine maneuverability and the ability to work within the practical conditions of the farm.
A field crop spraying solution can combine a self-propelled or remote-control sprayer with a boom, spray nozzles and an application-control system. Where variable application is required, a variable-rate spray system or independently controlled pulse nozzles can provide an additional level of application control.
Duojia develops agricultural spraying equipment and precision application technologies that can be considered for these requirements, including self-propelled sprayers, unmanned sprayers, variable spray systems, variable-rate nozzles and air-assisted spray boom technology.
Application Scope
This application focuses on precision field crop spraying for commercial crop protection and related liquid application operations.
The scope includes:
Open-field crop spraying
Field crop plant protection
Herbicide application
Insecticide application
Fungicide application
Liquid fertilizer application where the selected equipment supports it
Remote-control field spraying
Variable-rate spraying
Precision application using controlled spray nozzles
Field spraying where spray drift and application consistency are important considerations
Relevant field crops represented in the supplied equipment information include wheat, rice, cotton, corn and soybean. Actual equipment suitability should be evaluated according to crop structure, field conditions and the intended operation.
Crop and Working Environment
Field crop spraying takes place in environments that can vary considerably between farms and growing stages. Open fields may include relatively uniform terrain, uneven ground, field ridges, drainage areas, wet sections or muddy conditions.
Crop structure also changes during the production cycle. A spraying machine therefore needs to provide suitable field mobility and application control without unnecessarily damaging the crop.
For field operations, important environmental considerations include:
Field accessibility
Ground and terrain conditions
Crop density
Crop height
Risk of crop contact with the machine
Required spray coverage
Application timing
Operator access to the field
Wind and spray drift conditions
Availability of suitable machinery and operators
The supplied Duojia equipment includes machines with different chassis configurations. For example, the 3WYP-270 uses four-wheel drive, while the 3WYP-160 uses three-wheel drive. The 3WYP-160DB is designed with narrow wheels and is described for operation across field conditions including ridges, ditches and muddy fields.
Agricultural Operation
The primary operation is field crop spraying for plant protection.
Depending on the farm's agronomic program and the selected equipment, field spraying may include:
Herbicide application
Insecticide application
Fungicide application
Liquid water-soluble fertilizer application
Precision variable-rate spraying
Targeted spraying
Prescription-based application
The spraying equipment should be matched to the intended agricultural input and application method. This page does not prescribe pesticide products, chemical rates or crop treatment schedules.
Application Challenges
Maintaining Application Consistency
Field spraying requires consistent liquid application across the treated area. Variations in machine movement, flow control or spray output can affect application uniformity.
A controlled spraying system can therefore be valuable where application consistency is a key requirement.
Managing Spray Drift
Spray drift can become a concern when droplets move outside the intended application area. Wind conditions, droplet characteristics, boom configuration and operating practices can all influence drift.
For applications where drift management is important, air-assisted boom technology can be considered as part of the spraying system.
Operating Across Uneven Fields
Commercial fields are not always perfectly uniform. Ridges, ditches, muddy sections and other terrain conditions can create mobility challenges.
A sprayer with an appropriate chassis and drive configuration can help the operator maintain practical field access.
Reducing Crop Damage Risk
The machine must move through the crop without creating unnecessary contact with plants. Narrow-wheel configurations can be useful where reducing wheel contact with crop rows is an important consideration.
Operator Exposure
Spraying operations can involve exposure to agricultural chemicals. Remote-control equipment allows the operator to control certain machines from a distance, creating physical separation between the operator and the spraying machine.
Technical Requirements for the Application
Suitable Field Mobility
The machine needs to match the physical conditions of the field. Drive configuration, steering design, ground clearance and overall machine dimensions influence where and how the sprayer can operate.
Controlled Spray Output
For precision crop protection, controlling spray output is an important technical consideration. Flow control and variable-rate systems can provide a more controlled approach than relying only on fixed application output.
Nozzle-Level Control
Where variable-rate or targeted spraying is required, independent nozzle control can become important. Duojia's C200 variable spray system uses individually controlled pulse-variable nozzles and flow closed-loop control.
Spray Coverage
The boom and nozzle arrangement should provide the coverage required for the intended crop and operation. Boom length, nozzle configuration, pressure and machine operating conditions should be evaluated using the actual equipment specifications.
Drift Management
Where drift is a major operating concern, the spraying system can be evaluated together with air-assisted boom technology. The supplied FM series uses a cross-flow fan structure to create an air curtain along the spray boom.
Operator Control
Remote-control spraying can be useful where operator separation from the machine is required. Intelligent control and navigation functions may also be considered when supported by the selected equipment.
Recommended Agricultural Solution
A practical field crop spraying solution can be structured around the actual field problem rather than selecting a machine only by tank capacity.
Field access problem
→ Match chassis, drive and steering configuration to field conditions
→ Select an appropriate self-propelled or remote-control sprayer
Uneven spray output requirement
→ Use controlled flow and application management
→ Consider a variable spray system
Variable application requirement
→ Control spray output at nozzle level
→ Consider PWM or pulse-variable spray technology
Spray drift concern
→ Improve spray management and airflow around the boom
→ Consider an air-assisted spray boom
Operator exposure concern
→ Separate the operator from the spraying machine
→ Consider remote-control or unmanned spraying equipment
The final configuration should be determined from the crop, field conditions, required operation and equipment specifications rather than from a single machine characteristic.
How the Agricultural Solution Works
A field crop spraying system generally consists of a mobile spraying platform, liquid tank, pump and filtration system where applicable, boom, spray nozzles and a control system.
In a conventional field spraying workflow, the machine transports the spray liquid through the application system and distributes it through the boom and nozzles.
A precision configuration can add controlled application technologies.
Duojia's variable spray systems use pulse-type spraying with flow closed-loop control. The supplied C200 system is designed to independently control individual spray nozzles and can be adapted to existing boom sprayers.
The supplied variable spray nozzle technology is intended for variable spraying, targeted spraying, prescription-based application and other precision spray switching applications. The nozzles use normally closed electromagnetic valves to help prevent dripping when the spray is switched off.
For applications where spray drift is an important consideration, Duojia's FM-12, FM-16 and FM-20 air-assisted spray booms use a cross-flow fan structure to create an air curtain behind the spray nozzles. The supplied product information states that the air curtain can help manage droplet drift and improve droplet penetration and coverage. Actual results depend on operating conditions and system configuration.
Application Scenarios
Commercial Field Crop Protection
Crop:
Field crops such as wheat, rice, cotton, corn and soybean where the selected equipment supports the intended operation.
Agricultural Operation:
Herbicide, insecticide or fungicide spraying.
Working Environment:
Open agricultural fields.
Main Challenge:
Maintaining practical field mobility and consistent spray application.
Solution Requirement:
A suitable self-propelled field sprayer with an appropriate boom and spraying system.
Relevant Equipment or Technology:
Self-propelled boom sprayer.
Relevant Product:
3WYP-270 Unmanned Self-Propelled Boom Sprayer.
Buyer Type:
Commercial farms, agricultural contractors and crop protection service companies.
Precision Variable-Rate Field Spraying
Crop:
Field crops.
Agricultural Operation:
Variable-rate or targeted spraying.
Working Environment:
Open fields where application rates may need to be controlled according to the selected precision application workflow.
Main Challenge:
Applying different spray outputs while maintaining controlled application.
Solution Requirement:
Independent nozzle control and controlled flow management.
Relevant Equipment or Technology:
C200 variable spray system and variable spray nozzles.
Relevant Product:
C200 Variable Spray System.
Buyer Type:
Precision agriculture integrators, agricultural machinery manufacturers, contractors and commercial farms.
Field Spraying on Uneven or Wet Ground
Crop:
Field crops.
Agricultural Operation:
Crop protection spraying.
Working Environment:
Fields that may include ridges, ditches or muddy sections.
Main Challenge:
Maintaining machine mobility while limiting unnecessary crop contact.
Solution Requirement:
A machine configuration designed for practical field passage and remote operation.
Relevant Equipment or Technology:
Remote-control self-propelled sprayer with suitable chassis configuration.
Relevant Product:
3WYP-160DB Remote-Control Self-Propelled Boom Sprayer.
Buyer Type:
Commercial farms, agricultural contractors and agricultural service companies.
High-Capacity Commercial Field Spraying
Crop:
Field crops.
Agricultural Operation:
Large-area spraying operations.
Working Environment:
Open commercial agricultural fields.
Main Challenge:
Matching equipment capacity and working configuration with large-area field operations.
Solution Requirement:
A larger self-propelled boom sprayer with a suitable boom, tank and spraying-control configuration.
Relevant Equipment or Technology:
Self-propelled boom sprayer with variable spraying capability.
Relevant Product:
3WPZ-3000 Self-Propelled Sprayer.
Buyer Type:
Large-scale farms, agricultural contractors and machinery distributors.
Equipment and Technology System
A precision field crop spraying solution can be organized as:
Self-Propelled or Remote-Control Sprayer
→ Spray Tank and Liquid Delivery System
→ Boom
→ Spray Nozzles
→ Variable Spray or Flow-Control System
→ Optional Air-Assisted Boom Technology
The appropriate configuration depends on the application.
A machine such as the 3WYP-270 provides the mobile spraying platform. The C200 variable spray system can be adapted to existing boom sprayers where variable-rate or independently controlled spraying is required.
The variable spray nozzle system provides the nozzle-level control component, while FM-series air-assisted boom technology addresses spray-management requirements involving airflow around the boom.
This modular approach allows equipment buyers to evaluate the machine and precision application technology separately when the application requires system integration.
Relevant Products
3WYP-270 Unmanned Self-Propelled Boom Sprayer
Product:
3WYP-270 Unmanned Self-Propelled Boom Sprayer.
Application Role:
Remote-control field crop spraying platform.
Crop / Operation Relevance:
The supplied information identifies the machine for pest and disease control and fertilization operations in field and economic crops.
Reason for Relevance:
It combines a self-propelled platform with remote control, four-wheel drive and a boom spraying system. The supplied information also describes its use for herbicides, insecticides, fungicides and water-soluble fertilizers.
Relevant Product Information:
The machine has a 270 L rated tank, a 7 m boom and a stated maximum travel speed of 9 km/h. Its specified working pressure is 0.2–0.5 MPa and its remote-control range is up to 500 m.
3WYP-160 Remote-Control Self-Propelled Boom Sprayer
Product:
3WYP-160 Remote-Control Self-Propelled Boom Sprayer.
Application Role:
Remote-control field spraying.
Crop / Operation Relevance:
The supplied information describes it for field and economic crop pest and disease control and fertilization operations.
Reason for Relevance:
The machine provides remote control and a self-propelled spraying platform. Its three-wheel drive configuration is relevant when evaluating machine mobility and field access.
Relevant Product Information:
The machine has a 160 L rated tank and 7 m boom. Its specified working pressure is 0.2–0.5 MPa. The supplied navigation and remote-control precision is ≤2.5 cm.
3WYP-160DB Self-Propelled Variable Sprayer
Product:
3WYP-160DB.
Application Role:
Precision field crop spraying.
Crop / Operation Relevance:
The supplied information describes the machine for spraying herbicides, insecticides, fungicides and water-soluble fertilizers and for field conditions including ridges, ditches and muddy fields.
Reason for Relevance:
It combines pulse-variable spray nozzles with an intelligent variable precision spraying control system and remote control.
Relevant Product Information:
The machine has a 160 L tank, 54 PWM spray nozzles, an 8 m boom and a specified working pressure of 0.2–0.5 MPa. Its travel speed is specified as 0–8 km/h.
C200 Variable Spray System
Product:
C200 Variable Spray System.
Application Role:
Variable-rate and precision spraying control.
Crop / Operation Relevance:
Relevant where a field spraying machine requires variable spray output, targeted spraying or prescription-based application.
Reason for Relevance:
The system provides individually controlled pulse-variable spray nozzles and flow closed-loop control. It can be adapted to existing boom sprayers.
Relevant Product Information:
The supplied technical data specifies a pulse-variable structure, flow closed-loop control, 0.5 ±0.05 MPa working pressure, 12 V working voltage and a stated precision of 5%.
Variable Spray Nozzles and Variable Spray Control System
Product:
Variable Spray Nozzles and Variable Spray Control System.
Application Role:
Nozzle-level precision application and variable spraying.
Crop / Operation Relevance:
Relevant to field spraying where variable-rate, targeted or prescription-based application is required.
Reason for Relevance:
The supplied information describes individually controlled nozzles and applications including variable spraying, targeted spraying and prescription application.
Relevant Product Information:
The variable spray system uses pulse-type spraying and flow closed-loop control. The supplied system specification gives a working pressure of 0.5 ±0.05 MPa, DC12 or DC24 V operation and stated precision of ≥95%.
FM-12 / FM-16 / FM-20 Air-Assisted Spray Boom
Product:
FM-12, FM-16 and FM-20 Air-Assisted Spray Boom.
Application Role:
Air-assisted spray management.
Crop / Operation Relevance:
The supplied information identifies these booms for rice, wheat, cotton, corn and soybean.
Reason for Relevance:
The air curtain is designed to help manage spray drift and improve droplet penetration and coverage.
Relevant Product Information:
The three models have boom lengths of 12 m, 16 m and 20 m. The supplied operating speed is up to 15 km/h, while the stated field-work efficiencies are 120, 160 and 200 mu/h respectively. Actual field performance depends on equipment configuration and operating conditions.
3WPZ-3000 Self-Propelled Sprayer
Product:
3WPZ-3000 Self-Propelled Sprayer.
Application Role:
High-capacity self-propelled field spraying.
Crop / Operation Relevance:
Relevant to larger-area crop protection operations where the supplied machine configuration matches the farm requirement.
Reason for Relevance:
The machine uses a 3,000 L tank, 20 m boom and four-wheel drive/four-wheel steering configuration. The supplied information also identifies a variable spray control system as an optional configuration.
Relevant Product Information:
The supplied specification gives a 3,000 L tank capacity, 20,000 mm boom length, 0.2–0.5 MPa working pressure and 1,030 mm ground clearance.
Product Selection Guide
Professional buyers should evaluate field spraying equipment from the application outward.
Match the Machine to the Field
Start with field size, terrain, crop structure, access conditions and expected operating environment.
A smaller remote-control machine may be more practical for certain field configurations, while a higher-capacity self-propelled sprayer may be appropriate for larger-area operations.
Match the Spraying System to the Operation
Determine whether the operation requires conventional boom spraying, variable-rate application, targeted spraying or prescription-based application.
Where variable application is required, the compatibility between the base sprayer, control system and nozzles should be checked before procurement.
Evaluate Crop Protection Requirements
Consider the required coverage, droplet management and application consistency for the intended operation. Chemical selection and application rates should follow the applicable agronomic program, product label and local regulations.
Consider Operator Requirements
Remote-control equipment can provide physical separation between the operator and the spraying machine. Buyers should evaluate the control method, operating range and workflow according to their own operating environment.
Check Technical Compatibility
For precision spraying upgrades, buyers should verify:
Existing boom compatibility
Nozzle configuration
Working pressure
Control voltage
Flow-control method
Number of spray nozzles
Control-system integration
Available technical documentation
Maintenance access
Evaluate Supplier Capability
For B2B procurement, product specifications alone are not sufficient. Buyers should also assess technical communication, customization capability, spare-parts availability, documentation, delivery requirements and application support.
Application Benefits
A properly matched field crop spraying solution can provide several practical advantages:
Supports field crop plant protection operations
Provides different machine configurations for different field-access requirements
Enables remote operation on selected sprayer models
Supports controlled spray output through variable spraying technology
Provides individually controlled spray nozzles for precision applications
Allows variable spray technology to be integrated with compatible existing boom sprayers
Provides air-assisted boom technology for applications where spray drift and droplet penetration require additional consideration
Gives B2B buyers flexibility to evaluate complete machines and precision application components as separate or integrated equipment solutions
The actual result depends on machine configuration, crop conditions, weather, operating practices and the selected agricultural application.
Agricultural Application Process
1. Assess the Application
Define the crop, spraying operation, field size, field conditions and intended agricultural input.
2. Assess the Field
Evaluate terrain, accessibility, crop structure, moisture conditions and potential crop-contact risks.
3. Select the Machine
Choose a self-propelled, remote-control or other suitable spraying platform based on the actual field requirements.
4. Select the Spraying Technology
Determine whether standard boom spraying, variable-rate control, independently controlled nozzles or air-assisted boom technology is appropriate.
5. Check System Compatibility
Verify boom, nozzle, pressure, control-system and electrical requirements before deployment.
6. Configure and Inspect the Equipment
Check the spraying system, nozzles, liquid delivery components, control system and machine before operation.
7. Conduct the Application
Operate according to the approved agricultural application program, equipment instructions, field conditions and applicable regulations.
8. Monitor the Operation
Observe spray distribution, machine movement, field conditions and any signs of drift or inconsistent application.
9. Clean and Maintain
Clean the application system and inspect the machine and spraying components after operation according to the equipment manufacturer's instructions.
Maintenance and Inspection Considerations
Field spraying equipment requires regular inspection because both the machine and liquid application system are exposed to demanding operating conditions.
Relevant checks include:
Spray nozzle condition
Boom condition
Liquid delivery components
Filters
Spray-control components
Electrical connections
Remote-control functions
Chassis and drive components
Wheels or tracks where applicable
Signs of leakage
Cleaning after spraying
Proper equipment storage
For precision spraying systems, nozzle-level control and flow-control functions should also be checked as part of equipment inspection.
Maintenance procedures and intervals should follow the specific equipment documentation rather than a generic schedule.
Common Problems and Practical Considerations
Problem:
Uneven application.
Possible Cause:
Inconsistent spray output, unsuitable system configuration or operating conditions.
Practical Consideration:
Evaluate the spraying system, nozzle configuration, pressure control and flow-control method.
Problem:
Spray drift.
Possible Cause:
Weather conditions, droplet characteristics, boom configuration and operating practices can contribute to drift.
Practical Consideration:
Consider appropriate spray-management practices and air-assisted boom technology where applicable.
Problem:
Difficulty accessing parts of the field.
Possible Cause:
Terrain, muddy sections, field ridges or machine dimensions may limit mobility.
Practical Consideration:
Select the chassis, drive and steering configuration according to actual field conditions.
Problem:
Crop damage during operation.
Possible Cause:
Machine dimensions, wheel configuration, crop structure or operating path may create crop-contact risks.
Practical Consideration:
Evaluate machine width, wheel configuration and field-access requirements before procurement.
Problem:
Variable application requirements are difficult to implement.
Possible Cause:
A conventional spraying system may not provide the required level of application control.
Practical Consideration:
Evaluate variable spray systems and individually controlled pulse-variable nozzles where the equipment configuration supports them.
What Buyers Should Check When Selecting an Agricultural Equipment Supplier
B2B buyers should evaluate whether a supplier can support the complete application rather than only supply a machine.
Important factors include:
Relevant agricultural machinery development experience
Precision spraying technology capability
Complete equipment and component development
Technical documentation
Product configuration flexibility
Application-specific engineering support
OEM or customized equipment development where required
Spare-parts support
Export communication and documentation
Delivery capability
After-sales technical support
For precision agriculture projects, buyers should also verify how the spraying system, control technology and machine platform work together.
Manufacturing and Supply Capability
Hefei Duojia Agricultural Technology Co., Ltd. develops intelligent agricultural equipment and precision fertilizer and pesticide application technologies.
The company was established in 2012 and has developed agricultural machinery, intelligent spraying systems, precision application components and customized agricultural equipment solutions.
Its development scope includes complete plant-protection machines and core components such as variable-rate spray nozzles, spraying control systems, anti-drift systems, steering systems and agricultural transmissions.
Duojia states that it and its subsidiaries have applied for more than 230 national patents and maintains R&D cooperation with universities and research institutions in agricultural machinery and precision application technology.
For B2B buyers, this combination of complete equipment and component development can support projects that require either a complete spraying machine or integration of precision spraying technology into existing equipment.
Related Applications
Precision Crop Protection
Variable-Rate Spraying
Smart Farming
Greenhouse Agriculture
Intelligent Weeding
Soybean-Corn Intercropping
FAQ
What crops can field crop spraying equipment be used for?
The supplied Duojia equipment information identifies applications involving field and economic crops, including wheat, rice, cotton, corn and soybean for specific equipment or boom configurations. Actual suitability should be evaluated according to the selected machine, crop structure and spraying operation.
What type of equipment is suitable for precision field crop spraying?
The appropriate equipment depends on the application. Options in the supplied product range include self-propelled boom sprayers, remote-control sprayers, variable spray systems, variable spray nozzles and air-assisted spray booms.
Can a variable spray system be added to an existing boom sprayer?
The supplied C200 information states that the variable spray system can be adapted to existing market-available boom sprayers. Compatibility should be confirmed based on the specific machine and spraying-system configuration.
What is the role of PWM or pulse-variable spray nozzles?
Pulse-variable nozzles provide controlled spray output through rapid switching. Duojia's supplied information describes the technology for variable spraying, targeted spraying, prescription application and other precision spray-control applications.
Are remote-control sprayers suitable for field crop spraying?
Selected Duojia remote-control sprayers are described for field and economic crop pest and disease control and fertilization operations. Suitability depends on field conditions, crop structure, machine configuration and the intended operation.
How can buyers address spray drift during field spraying?
Spray drift should be considered together with weather conditions, droplet characteristics, boom configuration and operating practices. Duojia provides FM-series air-assisted spray booms that use an air curtain behind the spray nozzles as part of a spray-management approach.
What information should buyers provide when requesting a field crop sprayer?
Useful information includes the target crop, agricultural operation, field conditions, approximate field size, required spraying method, preferred machine type, existing equipment if an upgrade is being considered, and any requirements for remote control or variable-rate application.
Conclusion
Field crop spraying requires a combination of suitable machine mobility, reliable liquid application and appropriate spray-control technology. The correct solution depends on the crop, field environment, spraying operation and level of precision required.
For conventional field crop protection, self-propelled boom sprayers such as the 3WYP-270, 3WYP-160 and 3WYP-160DB provide different equipment configurations. For precision variable-rate spraying, the C200 variable spray system and variable spray nozzles provide controlled application technology. Where spray drift and airflow around the boom are important considerations, FM-series air-assisted spray booms provide another technology option.
B2B buyers should evaluate the complete application chain from field conditions and crop requirements through machine selection, spraying technology, system compatibility and supplier support.
Contact Us
If you are sourcing equipment for field crop spraying, contact Duojia to discuss your application requirements.
You can provide:
Target crop
Agricultural operation
Field and terrain conditions
Required spraying method
Existing spraying equipment
Variable-rate or precision application requirements
Remote-control requirements
Desired equipment configuration
Technical specification requirements
OEM or customized equipment requirements
Duojia can discuss suitable agricultural equipment, precision spraying technologies and application-specific configurations based on your project requirements.
Request product information, technical specifications or a quotation for your field crop spraying project.