What advantage does the Deccan region have over the north with reference to sugarcane cultivation?

The Deccan region have following advantages over the north with reference to sugarcane cultivation:

1. In the south, the climate conditions are ideal with the absence of "Loo" during summer with reasonably high temperature and frost-free winters coupled with maritime winds in coastal areas.
2. The black lava soil with their high fertility and retentivity are most beneficial for the sugarcane crop.
3. Better methods, manures and fertilizers are used for cultivation in the south.