New Zealand captain Stephen Fleming said his team had been "well and truly outplayed" after England's emphatic nine-wicket win.
England clinched the Test series with victory at Headingley with New Zealand heading to the third and final Test on Thursday with an injury crisis.
Fleming said: "We were soundly beaten by a better side.
"The series has gone which is disappointing and I've got to find a fit 11 players for Trent Bridge."
New Zealand posted a decent 409 in the first innings but England hit back with 526 after centuries by Marcus Trescothick and Geraint Jones.
New Zealand capitulated for 161-9 in the second innings, although they were without Daniel Vettori (torn hamstring) and Michael Papps batted with a broken finger.
England rattled off the 45 needed in just eight overs.
Fleming added: "We were very happy with 400 but what we needed going into the last couple of day was a lead and we didn't get it due to our bowling lacking penetration.
"There was also some sound batting from England and with our side we knew we were up against it.
"England took the initiative away from us by not giving is a lead in the first innings.
"It's back to the drawing board for us."