Plant protection drones have revolutionized modern agriculture, especially in seedling maintenance, where precision and timeliness are critical. Proper operation skills ensure healthy crop growth, reduce chemical waste, and maximize yield. Here are key techniques to master.

1. Flight Height and Speed Control
During seedling stage, crops are fragile. Maintain a flight height of 1.5–2.5 meters above canopy to avoid downwash damage. Keep speed below 4–6 m/s to ensure uniform droplet coverage without blowing seedlings over. Use terrain-following radar for uneven fields.

2. Nozzle Selection and Spray Volume
Use fine or medium droplets (100–250 μm) for systemic fungicides, but switch to coarse droplets for contact herbicides to reduce drift. Adjust spray volume to 10–20 L/ha for concentrated application. Calibrate flow rate based on seedling density.

3. Timing and Weather Conditions
Operate in early morning or late afternoon when wind speed is below 3 m/s and humidity above 60%. Avoid midday heat to prevent evaporation. Postpone spraying if rain is forecast within 4 hours.

4. RTK Navigation and Obstacle Avoidance
Enable RTK (Real-Time Kinematic) for centimeter-level accuracy, especially for row-planted seedlings. Set obstacle avoidance radius of 2 meters to prevent collisions with irrigation pipes or young trees.

5. Battery and Payload Management
Monitor battery voltage to avoid mid-flight power loss. For small seedlings, use lighter payloads (e.g., 10–15 kg) to extend endurance. Plan flight routes to minimize turnaround time.

6. Post-Spray Inspection
After operation, check for leaf wetness and even coverage using water-sensitive paper. Re-spray skipped areas manually. Clean nozzles and tank to prevent clogging from fertilizer residues.

For advanced drone models and training resources, visit www.uflystar.com. Uflystar offers RTK drones with smart seedling-spray modes, plus free operational guides.

Mastering these skills reduces seedling mortality, cuts costs by 30%, and ensures robust crop establishment. Practice on small plots first, and always follow local pesticide regulations. With precision techniques and reliable equipment, your seedling maintenance will become efficient and sustainable.