Jackson bundled the ball home to claim his hat-trick - and eighth goal in six games - after efforts from Steve Davies and Alberto Bueno had twice helped dogged Derby peg Norwich back and cancel out Jackson's earlier brace.
Lambert said: "Once again the players have been extraordinary. I just can't praise them enough. They are a proper team, that's for sure, and have been absolutely brilliant for me.
"To be fair, Derby came here and had a go just as they did against QPR recently. They're a good side and made it difficult for us.
"At the end I just felt I had to go for the win. We have got a lot of creative players in the side and when that's the case you have always got a chance.
"Now we know that if we win our last two games we are up, but obviously that's a lot easier said than done."
Source: PA
Source: PA