Knicks coach Mike Woodson admitted Amar’e Stoudemire was “rusty a little bit’’ in his season debut Thursday in Chicago.

The question is how long will it take for Stoudemire to shake off the rust, given Woodson’s bizarre power-forward platoon system with Kenyon Martin and a current 10-minute cap.

“They got to be patient with me and we got to make it work,’’ Woodson said. “The bottom line is, we need him in a uniform helping us. It will come.”

What’s certain is Stoudemire and Martin will rotate in back-to-back games as they did Wednesday and Thursday against the Bucks and Bulls.

Martin played against Milwaukee and Stoudemire played 10:40 in Chicago, where he scored five points but committed four fouls and three turnovers. His first play of the season was bouncing the ball off his foot on a post move — pure rust.

“I totally understand [the platoon],’’ Stoudemire said. “I hope you guys do too, so you don’t keep asking. With a couple of days off, both of us can play.’’

And what about a day between games?

“Not sure,’’ Stoudemire said. “It’s up to the coaching staff. I’m sure with a day off we’d be able to play and be ready to go.’’

Martin, who has chronic ankle issues, may not be as understanding. He said he didn’t mind the babying in preseason but said he’d “press the issue’’ if it continues in the regular season. Plus, Martin got in for just four minutes in the season opener.

Stoudemire, meanwhile, felt his first game went well as he scored on two nice low-post baskets in the second half, but had to be yanked because of his cap just as he was getting in a groove.