Uploaded September 2026 | Updated September 2026, 1 week ago
DJI Agras T100 spray drone testing in the field — see how spray coverage, swath accuracy and drift risk are checked before commercial spraying. We follow a real-world deposition test to see where the spray actually lands and what farmers need to understand before putting an agricultural drone to work.
In the Lower Hunter Valley NSW, James and Mitch are testing the DJI Agras T100 under real operating conditions rather than simply relying on factory settings.
The team lays out a long paper test strip and applies coloured liquid across it before scanning the resulting spray pattern. By changing wind conditions, flight speed, swath width, nozzle settings and droplet size, they can see how evenly the drone applies spray and where the risks of drift or missed strips begin. This data informs their real world descisions.
We also look at what the T100 can do as a working piece of farm machinery, including high-speed spraying, variable-rate application, spot spraying, obstacle detection, battery turnaround and the ground systems required to keep a spray drone productive throughout the day.
For farmers considering agricultural drones, this is an important part of the story. Maximum speed and tank capacity mean little unless the machine can put the correct amount of product where it is supposed to go.
The broader discussion covers agricultural spray drones, drone spraying, swath deposition testing, spray drift management, droplet size, spray coverage, precision agriculture, variable-rate spraying, mapping, weed detection, broadacre spraying and the practical use of drones after wet weather when conventional spray equipment may struggle to enter a paddock.
We also look ahead to automated battery changing and refilling systems and the development of real-time AI-assisted spot spraying.
Watch next on Farm Learning
• Agricultural drones and precision farming systems
• Practical farm machinery and technology field tests
• Spray application, mapping and variable-rate agriculture
Subscribe to Farm Learning with Tim Thompson for practical agricultural education, field testing and farmer-to-farmer explanations.
If you're already using spray drones, I'd be interested to hear what you've learnt about swath width, droplet size, drift and productivity in real conditions. Leave your experience or questions below.
Share this with a farmer, contractor or landholder who is considering where agricultural drones might fit into their farming system.
Details
Location: Lower Hunter Valley NSW
Guests: James and Mitch from Lyonag https://www.lyonag.com.au/
Drone: DJI Agras T100
Practice: Swath deposition and spray-pattern testing
Key topics: spray drift, coverage, droplet size, flight speed, variable-rate spraying, spot spraying, productivity and automation
#AgriculturalDrones #DJIAgrasT100 #PrecisionAgriculture #SprayDrone #FarmTechnology
00:00 Why Spray Drone Testing Matters
00:38 Preventing Spray Drift and Paddock Stripes
02:18 How the Spray Pattern Test Works
03:26 DJI Agras T100 Up Close
04:55 Can One Drone Cover 200 Hectares a Day?
06:15 Setting Up a Safe Spray Mission
06:58 Spraying at 72 km/h
07:25 Droplet Size and Variable-Rate Spraying
08:38 Tank Capacity and Practical Payload
09:07 Why Farmers Are Moving to Spray Drones
09:50 DJI Agras T100 Field Test
10:54 Flying the T100 by Hand
12:27 When a Drone Becomes Farm Machinery
13:01 Improving Spray Coverage and Drift Control
13:10 Automated Refilling and Battery Changes
13:52 Real-Time AI Spot Spraying
14:17 Where Agricultural Drones Are Heading
DJI Agras T100 spray drone testing in the field — see how spray coverage, swath accuracy and drift risk are checked before commercial spraying. We follow a real-world deposition test to see where the spray actually lands and what farmers need to understand before putting an agricultural drone to work.
In the Lower Hunter Valley NSW, James and Mitch are testing the DJI Agras T100 under real operating conditions rather than simply relying on factory settings.
The team lays out a long paper test strip and applies coloured liquid across it before scanning the resulting spray pattern. By changing wind conditions, flight speed, swath width, nozzle settings and droplet size, they can see how evenly the drone applies spray and where the risks of drift or missed strips begin. This data informs their real world descisions.
We also look at what the T100 can do as a working piece of farm machinery, including high-speed spraying, variable-rate application, spot spraying, obstacle detection, battery turnaround and the ground systems required to keep a spray drone productive throughout the day.
For farmers considering agricultural drones, this is an important part of the story. Maximum speed and tank capacity mean little unless the machine can put the correct amount of product where it is supposed to go.
The broader discussion covers agricultural spray drones, drone spraying, swath deposition testing, spray drift management, droplet size, spray coverage, precision agriculture, variable-rate spraying, mapping, weed detection, broadacre spraying and the practical use of drones after wet weather when conventional spray equipment may struggle to enter a paddock.
We also look ahead to automated battery changing and refilling systems and the development of real-time AI-assisted spot spraying.
Watch next on Farm Learning
• Agricultural drones and precision farming systems
• Practical farm machinery and technology field tests
• Spray application, mapping and variable-rate agriculture
Subscribe to Farm Learning with Tim Thompson for practical agricultural education, field testing and farmer-to-farmer explanations.
If you're already using spray drones, I'd be interested to hear what you've learnt about swath width, droplet size, drift and productivity in real conditions. Leave your experience or questions below.
Share this with a farmer, contractor or landholder who is considering where agricultural drones might fit into their farming system.
Details
Location: Lower Hunter Valley NSW
Guests: James and Mitch from Lyonag https://www.lyonag.com.au/
Drone: DJI Agras T100
Practice: Swath deposition and spray-pattern testing
Key topics: spray drift, coverage, droplet size, flight speed, variable-rate spraying, spot spraying, productivity and automation
#AgriculturalDrones #DJIAgrasT100 #PrecisionAgriculture #SprayDrone #FarmTechnology
00:00 Why Spray Drone Testing Matters
00:38 Preventing Spray Drift and Paddock Stripes
02:18 How the Spray Pattern Test Works
03:26 DJI Agras T100 Up Close
04:55 Can One Drone Cover 200 Hectares a Day?
06:15 Setting Up a Safe Spray Mission
06:58 Spraying at 72 km/h
07:25 Droplet Size and Variable-Rate Spraying
08:38 Tank Capacity and Practical Payload
09:07 Why Farmers Are Moving to Spray Drones
09:50 DJI Agras T100 Field Test
10:54 Flying the T100 by Hand
12:27 When a Drone Becomes Farm Machinery
13:01 Improving Spray Coverage and Drift Control
13:10 Automated Refilling and Battery Changes
13:52 Real-Time AI Spot Spraying
14:17 Where Agricultural Drones Are Heading
