I would most likely do that with halftones, however you could do a blend screen.
That's where you use one screen and you'd put for example (like your sample) orange on the left side of the screen and yellow on the right.......then you could pull or push your squeegee, keeping it lined up so you get a controlled blend of ink.
That's where you use one screen and you'd put for example (like your sample) orange on the left side of the screen and yellow on the right.......then you could pull or push your squeegee, keeping it lined up so you get a controlled blend of ink.