Advantages of Agricultural Drones: Cost, Time and Yield

The best way to judge a farm drone investment is to compare its benefits with your own farm's numbers. This article covers the measurable advantages of agricultural drones and the limitations you should not ignore. For the basics, see What Is an Agricultural Drone?; for the workflow, see How to Use an Agricultural Drone.

Time: Treating at the Right Moment

In disease and pest control, when you spray matters as much as how much. After rain, after irrigation or in flooded rice, tractors cannot enter the field, but a drone can. That flexibility helps you hit the right window, for example against rust or septoria in wheat.

Capacity differs greatly too. Current high-capacity models can cover dozens of hectares per hour in ideal conditions. As one farmer put it, a drone can finish 4 hectares in the time it takes to fill an 800-litre sprayer.

Input Savings: Water, Product and Fuel

Water

Drone applications typically use 10-30 litres of spray per hectare, far less than tractor sprayers. On remote or dry land this changes the logistics completely.

Crop protection products

RTK-guided routes eliminate overlaps and gaps, removing waste from double spraying. One of our users reported product savings of up to about 30%. Results depend on field shape and previous practice, but never go below the label rate.

Fuel and labour

Instead of a tractor and a second vehicle carrying water, you need a drone, a generator or charger and a small vehicle. Fewer people are needed, so the same team can manage more land.

Yield: No Wheel Tracks or Crushed Plants

Every tractor pass crushes plants in the wheel tracks, especially in late-season applications. A drone never touches the field, so this loss and soil compaction disappear.

Application Quality

The rotor downwash pushes droplets into the canopy and onto the underside of leaves. Droplet size and flow rate are adjustable, and radar keeps a constant height above the crop even on slopes.

Safety and Health

With knapsack sprayers or open-cab tractors, the operator is directly exposed to chemicals. With a drone, the pilot stays outside the treated area, and the risk of tractor rollover on steep slopes is removed.

A New Income Stream: Contract Spraying

Many drone owners also offer spraying and spreading to neighbouring farmers for a per-area fee, which increases annual use and shortens the payback period.

Limitations: Decide with Your Eyes Open

• Initial investment: the drone, spare batteries and charging equipment require a serious budget. Calculate your annual area first.
• Training and regulation: SHGM registration, a pilot certificate and crop protection rules must be followed.
• Weather: do not spray in windy or very hot conditions.
• High-volume applications: some product labels require water volumes unsuitable for drones; check the label.

Which Model Suits You?

For large areas and contractors, the DJI Agras T50 and Agras T55 stand out; for maximum capacity, the Agras T70P. If you want precision in tractor work too, complement your drone with the FJD AT2 auto-steering system.