Abstract

The uren under sorghum in the Nandyal tract is fairly extensive and comprises the whole of the Kurnool district, paris of Cuddapah, Anantapur and Nellore districts and portions of the Nizam's dominions. The whole of this area is under one variety-n compact-headed yellow type called 'Patcha jonna'. Early trial of other types such as the famous white or Tella jonna of Bellary and some red sorghums were not found useful at the Nandyal Station. Further work was therefore more or less confined to the Patuta jonna and covers a wide field of agricultural experiments on the varietal. manurial and cultural side. A few aspects of this work are presented in this paper as throwing light on some fundamental problems associ- ated with agricultural improvements and the methods adopted to attain them.

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