Use of supervised and unsupervised approaches to make zonal application maps for variable-rate application of crop growth regulators in commercial cotton fields

Table 1 General information about farms and fields that contributed to the predictive model training dataset

Farm code	Number of fields	Soil texture range of all fields (clay content/%)
1	65	Sandy (15%) – Medium clayey (25%–40%)
2	35	Sandy (15%) – Clayey (40%–60%)
3	108	Sandy (15%) – Clayey (40%–60%)

The number of fields reflects only the observations used for training the predictive model. This number represents the average of fields evaluated across the agricultural seasons. The average soil texture classification for each field follows the farms' internal criteria, which are based on clay content. Specifically, fields with 15% clay content are classified as sandy, those with 25%–40% clay are considered medium-clayey, and fields with 40%–60% clay are categorized as clayey

ISSN: 2523-3254