by Dr Drone May 13, 2024
If there’s one thing DJI has shown in its dynamic line of Agras agricultural drones, it’s that the future of farming lies in drones. The DJI Agras T50 is designed to handle an array of agricultural tasks from surveying fields to spraying and spreading across orchards. The DJI Agras T25, on the other hand, is a lighter, more compact drone that performs many of the same applications with only a single operator. Both drones come equipped with several advanced features including a Dual Atomizing Spraying system, an upgraded spreader system, and a powerful Radar and Binocular Vision system that makes surveying a variety of terrains a breeze.
Read on to learn more about the similarities and differences between the Agras T50 and Agras T25 and how each drone reshapes the landscape of drone applications in agriculture.
Both the Agras T50 and the Agras T25 are equipped with powerful Dual Atomizing Spraying systems that produce consistent, fine spray droplets without leaking. With the two-sprinkler system, the drone can deliver a flow rate of up to 16 L/min, providing an ample supply of water, fertilizers, pesticides, and herbicides to crops. Additionally, the drones can wield an additional pair of centrifugal sprinklers that increase the flow rate to a staggering 24 L/min.
This four-sprinkler system is an optional feature that is designed to service agricultural settings that require a higher application volume. When flying manually with the four-sprinkler option, simply use the Reverse Directional Spray to maneuver the drone more easily without the need to make turns. While both drones can deliver the same flow rate, the Agras T25 holds a 20 kg spraying tank compared to the 40 kg spraying tank of the Agras T50. This means the Agras T50 is capable of covering more ground, spraying a wider percentage of crops in a single flight.
In addition to the dual pumps, the Agras T50 and T25 are equipped with atomizing centrifugal speakers that allow the user to adjust droplet sizes as needed. The droplets can be adjusted between 50 to 500 μm, giving you the flexibility to deliver whatever chemicals you need to your crops. Lastly, the redesigned solenoid valves of the drones allow the aircraft to start and stop with greater precision than ever before, ensuring the drone does not leak during operation.
The Agras T50 is also equipped with a weighing sensor that allows the operator to monitor the remaining payload in real time, offering you greater oversight throughout your mission. Lastly, the spreader is designed to be quickly disassembled and cleaned, making maintenance a breeze and getting you back in the air as quickly as possible.
DJI Agras T25
The Agras T25 has a similarly powerful spreading system, albeit with a few key differences. The payload capacity of the Agras T25 is 25 kg, which is half of that of the Agras T50. It also has a 35 L max capacity, which is slightly less than half of the Agras T50. While the Agras T25 may have less capacity than the T50, it is designed with many of the same features that allow for more versatile spreading.
The Agras T25 also comes with an expanded loading gate for quick refills, as well as a weighing sensor that allows you to monitor the payload in real time. It also comes with the option to switch to smaller hopper gates for more precise low flow rate spreading, and the spiral channel spinning disk ensures spreading consistency. Lastly, both drones are designed for quick disassembly and cleaning.
Both the Agras T50 and Agras T25 are designed with an advanced vision system that makes flying the drone easier, safer, and more intuitive than ever before. Both drones are equipped with Active Phased Array Radars in the front and rear. This radar system includes twice as many RF channels, allowing the drone to detect obstacles in multiple directions with greater precision.
In addition to the radars, the Agras T50 and Agras T25 come with two sets of Binocular Vision sensors that can identify terrain features and obstacles in incredible detail. The binocular sensors allow the drones to automatically bypass obstacles with ease, enhancing safety in every part of the flight. They also perform Terrain Following, which allows the drone to automatically fly at a level height over slopes up to 50° with the T50 and 20° with the T25.
Both the Agras T50 and the Agras T25 were designed to be versatile drones capable of tackling any number of agricultural applications. No matter what the terrain, these drones can perform aerial surveying, spraying, and spreading all in one mission. Both drones are equipped with a high-resolution FPV gimbal camera that allows the operator to capture images of orchards and fields in real time. The drone can even map a 5-hectare orchard in only 10 minutes, generating a 3D map for use in future missions. This can deliver useful insights into field conditions and crop health, saving valuable time spent surveying by land.
Additionally, the Agras T50 and T25 can generate high-definition maps when used with the DJI RC Plus and RTK service. These maps can be the perfect starting point for creating automatic flight routes on future flights. The drones are also designed to take off and perform a series of automatic operations with just the push of a single button.
These automatic procedures can enhance operational efficiency and save time by streamlining workflows. For example, either Agras drone could use the real-time mapping features to automatically identify a certain type of fruit tree, and then create a 3D flight route that caters specifically to that fruit tree within the field or orchard. Altogether, these capabilities give farmers and agronomists the tools they need to manage their crops with ease.
The DJI Agras T50 and T25 each come with a dynamic Area Route feature that makes area mapping efficient and easy. This function allows the user to survey a field of up to 13 hectares within 10 minutes, automatically identifying its boundaries and any potential obstacles within. Using this capability, the drone can then plan precise flight routes while accurately collecting data across the entire field.
The drones also come with a Boundary Route feature that can map the boundary of a field of up to 13 hectares in only three minutes. If the field doesn’t have any obstacles in the middle, then this function streamlines the mapping process by quickly capturing the boundary data you need. It adds a secondary option to area mapping that gives you greater flexibility in managing your agricultural operations.
The best way to get the most out of what a DJI drone has to offer is with one of DJI’s powerful remote controllers, and the RC Plus is one to be reckoned with. The RC Plus has a 7-inch high-brightness screen with a powerful 8-core processor, keeping things running smoothly while responding easily to your touch. The RC Plus allows for intelligent route planning to find the optimal flight paths for your drone, making the most out of your battery when flying with a full tank. If desired, the remote controller includes a manual mode that enables you to adjust the flight as needed.
With a new quad-antenna O3 Transmission system, you’ll maintain reliable connectivity within a range of up to 2 km. This is true even for areas without cellular coverage, as the advanced anti-interference capability will maintain signal quality while you fly over tall crops on high terrains.
Often when flying a drone in an agricultural setting, you run into certain scenarios where tall obstacles block the line of sight between the remote controller and the drone. The Agras T50 and Agras T25 are designed with a powerful system called DJI Relay that will ensure uninterrupted video transmission no matter what.
Simply position the DJI Relay in between the remote controller and the drone, and the relay system will bounce the signal between the RC and the drone. This is a great tool to use when flying in a hilly environment where obstacles are common.
DJI has no shortage of drones designed to handle every kind of agricultural mission under the sun. By pairing the DJI Agras T50 or T25 with the brand-new Mavic 3M, you can create a Smart Agriculture Ecosystem that utilizes the Mavic 3M’s multispectral capabilities. The drones work together to create prescription maps that can guide variable rate fertilization and crop protection, keeping inputs at a minimum and making the most out of yields. Be proactive in farm management by performing quick patrols of your field to spot areas of growth stress and deal with them in a timely manner.
If you’re looking for an agricultural drone that can handle aerial surveying, spraying, and spreading, then you can’t do better than the DJI Agras drones. Both drones are intelligently designed to perform consistent spraying and spreading over a wide terrain. But there are several key differences that might make one drone the better fit for your project–and your wallet.
The Agras T50 has a higher payload capacity (40 kg for spraying and 50 kg for spreading) compared to the Agras T25 (20 kg for spraying and 25 kg for spreading). While both drones have the same flow rate for spraying, the Agras T50 has a higher flow rate for spreading (108 kg/min compared to 72 kg/min for the Agras T25). The Agras T50 is also capable of performing Terrain Following at slopes of up to 50° compared to 20° with the Agras T25.
These differences mean that the Agras T50 is better suited for larger fields and orchards that require more expansive spreading and spraying operations. The Agras T50 can cover 21 hectares of a field or 4 hectares of an orchard in an hour, spreading 1,500 kg of granules per hour. The Agras T25, on the other hand, can cover 12 hectares of a field in an hour, spreading 1,000 kg of granules per hour. This makes the Agras T25 better suited for solo use in small to medium-sized farms. Its compact size also makes it more portable and easy to wield in smaller farms.
The DJI Agras T50 and T25 drones show how the use of drones has redefined the way we think of agriculture. With their shared foundation of intelligent features including a Dual Atomizing Spraying system and advanced mapping capabilities, both drones offer farmers the ability to manage their crops with the latest technology. Both drones excel in different ways: the Agras T50 wields a superior payload capacity while the Agras T25 shines as a compact, more affordable solution for smaller operations. Whichever drone you choose, you’re sure to benefit from DJI’s commitment to pairing advanced technology with everyday applications.
by Dr Drone October 07, 2024
Dr Drone
Author
DrDrone is Canada's leading provider of drone technical services, with over a decade of experience and the distinction of being the first company in the country to offer drone servicing and repairs. As the largest drone vendor in Canada, we are also the primary supplier of Remotely Piloted Air Systems (RPAS) to the Canadian government. Our team members possess extensive knowledge of each drone's technical specifications and have a wealth of hands-on experience. For more than ten years, we have been dismantling and reconstructing drones, ensuring a deep understanding of these systems.