Answer:
I would probably use atrazine on corn and sorghum.
Step-by-step explanation:
Atrazine is a triazine-type herbicide used in corn, sugar cane and sorghum crops for weed control. This herbicide is still employed due to its low cost (although it is prohibited in many countries) and because it acts synergistically when used with other herbicides. It is a photosystem II inhibitor translocating only via xylem.
Since Kansas is a major producer of wheat, corn, and sorghum, if I were a farmer in that state, I would probably use atrazine for weed control in corn and sorghum.