Belter

This pitch was re-laid in March 2008 and a lot of domestic matches have been played here. We have hosted Under-22 matches, Duleep Trophy and Vijay Hazare Trophy matches here in the past two years and the strip is really good for batting. We are sure that we will see a high scoring game. It is a 300-plus pitch," Sahasrabuddhe said while the finishing touches were being given to the ground for the match.
Samander Singh Chouhan, the chief curator of the Madhya Pradesh Cricket Association, who supervised the preparation of the pitch said the toss would be hardly of any significance on a belter like this.

Source : http://cricket.yahoo.com/cricket/news/article?id=item/2.0/-/story/cricket.yahoonews.com/gwalior-pitch-curator-promises-batting-paradise-20100222/

Could you please explain to me what "belter" means here?

Though it sounds like "pitch" or "field" or "ground".