Case Study
Rice
DJI Agras MG-1P Sprayed Rice Herbicide in Vinh Hung, Long An province, Viet Nam
Long An is one of the major rice-growing localities in the South in Vietnam. In Vinh Hung district, the current total rice area is 33,780.82 ha. The majority of farmers here cultivate rice and sticky rice. When there is annual inundation of water, conventional rice and sticky rice are mainly due to their salinity tolerance, good adaptation to environmental conditions.
1. Purpose of the Spray
To prevent pre-germination weeds, in this case, farmers used DJI Agras MG-1P drone to spray herbicide. This is a method of taking care of conventional rice and sticky rice plants recently applied by farmers in Vinh Hung district because of its convenience.
2. Info of the Environment
| Date of Spray | 6/05/2020 | Location | Vinh Hung district |
| Type of Terrain | Delta | Temperature | 25oC- 30oC |
| Total sprayed Area(ha.) | 6ha | Humidity | 70% |
| Wind speed(m/s) | N/A | Wind direction | N/A |
The condition is favor for spraying. Spraying in the early morning, cool weather, stable wind direction, no strong winds, relative humidity.
3. Operation Parameters
| Type of Drone | MG -1P | Firmware Version | 0012 |
| Operation model | Effective | Operation Speed | 100% (6,9m/s) |
| Operation height (from the top of the crop) | 2m | Line spacing/width | 4.2m |
| Liquid amount sprayed per hectare (or per MU) | 16L/ha | Nozzle type | XR110015VS |
Choosing the above parameters was for the most efficient operation of the aircraft as well as maximum performance to save time and battery life.
4. Info of Chemicals
| Chemical commercial name | Formulation | Active ingredient and the percentage | Chemical amount (g or ml) used per hectare |
| Butapro 550EC | EC | Butachlor 275g/literPropanil 275g/literFenclorim 100g / literSolvent, additive enough 1000 g / liter | 4 bottles/ha |
Butapro 550EC is a post-sprouting herbicide that has an endospermic effect (drainage), eliminates harmonious grasses, papyrus and broadleaf in rice fields.
5. Briefly compare the difference between drone, manual, and other traditional equipment in this case.
The difference between using traditional spray and spray drone is: The amount of the pesticide has decreased from 20% to 30%, the amount of water used is only 20 liters per 1 Ha compared with the hand spray has decreased by 90%.
6. Conclusion
People have realized many benefits since using DJI Agras for spraying plants: Saving water, not worrying about water sources when spraying in the dry season, saving time, reducing labor, increasing production, saving plant protection chemicals, thereby reducing toxicity to humans and the chemical residues in agricultural products.
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.