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Not all of the weeds are treated, what could be the cause?

The Kilter AX-1 robot uses advanced machine learning algorithms to classify each plant into crop or weed, and thus which plants should be treated or not.

First, make sure that you are using the correct classifier for your operation, as some weeds may be classified as crops in the wrong model.

The optimal point of herbicide application on the weeds is at the 2-3 true leaves stage. Treatment before this can result in weeds falling between droplets as the plant is too small for the robot droplet resolution.

The user can configure some parameters in the Kilter Remote app when starting a session. These parameters include:

  • ‘Crop Safety Zone’, which is a zone around the crop where the robot will not spray regardless of weed pressure.
    • Cases where this could be adjusted: expected wind, angled field, high weed pressure.
    • Some weeds close to the crops may not be treated if this setting is set to a high value.

  • ‘Spray Dilation Area’, adjust how much area around the weeds is getting treated.
    • This greatly increases herbicide usage and power consumption.
    • If using a non-systemic herbicide, this parameter could be adjusted to increase the likelihood of the weed being treated in more challenging situations as mentioned with the ‘Crop Safety Zone’.

  • ‘Crop Size Selection’, important parameter to set the size of the crop at time of treatment.
    • The parameter tells the model how conservative it should be in classifying between crop and weed at different stages of growth. Many weeds can look like some young crops before first true leaf, causing a conservative model to skip treatment of some weeds to not cause damage to the crops.
    • Spraying at a later stage in the crops growth and selecting the correct crop size makes sure there is enough difference between weeds and crops, ensuring proper treatment.

Lastly, if the results have not improved after these checkpoints, the Spraying Modules might need a re-calibration (Check here how to calibrate the spray module).

If you need further assistance please contact support at support@kiltersystems.com.