Case Study


Weed Control for Wheat with DJI Agras T16

Spring is vital for agriculture, and plowing is carried out all over China. To improve the yield of winter wheat, DJI’s Agras T16 is used for pest and weed control.

Differing from the MG Series, the Agras T16 is equipped with four pumps and eight nozzles, with an increased spraying speed of 4.8 L/min, an increased volume of 16 L, and a spraying width of 6.5 m. So, what are the optimal operation parameters when spraying wheat? 

In March 2019, a team from Denong Commercial and Trading carried out weed control for 53.3 hectares of wheat using the parameters listed below:

Environment Information

Land TypePlainLocationXinxing County,Zhucheng, Shandong
WindLv. 3 North WindTemperature & Weather Sunny,5°-17°C

The operation target is 53.3 hectares of winter wheat in Xiangu Farm of Zhucheng City, Shandong Province. The control target is broad-leaved weeds in wheat fields, mainly composed of flixweed and pickpurse. The weather was sunny, the temperature was 5°-17°C (Note: Spraying effect is susceptible to temperature. It is recommended to spray herbicide when the average temperature is stable at 8-10°C), with a level 3 northern wind which is suitable for spraying operations. (Note: winds stronger than Lv. 3 are detrimental to spraying.)

Operation Parameters

Flight ModeRoute Operation Flight Speed6 m/s
Flight Altitude2 mRoute Spacing6.5 m
Volume per Hectare67 mlNozzle TypeXR11001VS

Herbicide Information

Herbicide NameTypeConcentration of Active IngredientAmount per Hectare
Dow AgroSciences RuichaomaiWater-dispersible granuleHalauxifen-methyl 10% Florasulam 10%0.34 g

Weeds affecting local wheat fields are mainly broad-leaved, such as flixweed and pickpurse. The Ruichaomai herbicide of Dow AgroSciences was used for spraying.

Note: When diluting dissolvable granules, make sure to dilute them twice. Mix a certain amount of the herbicide with a small amount of water, and stir evenly until the granules are completely dissolved. Then, add the appropriate amount of water and adjuvant to the concentrate, mix them evenly, and pour into the spraying tank.


The results of the spraying were checked ten days after the operation. As you can see, most weeds in the winter wheat field were wilted and twisted. Weeds would turn yellow or die, while the growth of wheat was not affected. This was a successful operation, and the operation parameters and herbicide listed above can be used as a reference for routine weed control of winter wheat. 

Before spraying
After spraying

Source: DJI Agriculture

Warm prompt: The content and parameters provided here are just for reference. You should adjust the operation mode and the parameters and use a correct way to spray your field according to the different weather, the crop characters, the habit or history of using chemicals (you could change other chemicals in case that the resistance occurs), etc. If you are not sure what operation parameters you will choose or not sure about the spraying efficacy, then you should firstly do a small plot test in this field before a big area spray.