Computer-implemented method for evaluating application threshold values for an application of an agricultural product on an agricultural field, comprising the steps: providing field data comprising geographic data about an agricultural field; segmenting at least a part of the agricultural field in sections and assigning different application threshold values for the agricultural product to different sections; applying the agricultural product on the sections according to the assigned application threshold values for the agricultural product; obtaining evaluation data for the different sections representing the effectiveness of the treatment with the different application threshold values; evaluating the different application threshold values at least based on the evaluation data (e.g. efficacy and or yields).