Farmers in Gujarat grow cumin (Cuminum cyminum) in roadside fields to take advantage of dust that settles on the crop. They believe dust absorbs moisture and makes the crop less vulnerable to diseases. The crop is grown on sloping lands also for the same reason.
Crop: Cumin
Crop Family: Umbelliferace
Crop Scientific Name: (Cuminum cyminum)
Crop Vernacular Name: Jiru
Formulation: Powder of cumin (Cuminum cyminum)
"Production Technology of Cumin (Cuminumcyminum L.)"
https://www.researchgate.net/publication/334416162_Production_technology_of_cumin_Cuminum_cyminum_L