ABSTRACT
This chapter discusses the significance of the close correspondence between variations in the density of population and variations in the extent of double-cropping. In order to understand the significance of the correspondence between the density of population and double-cropping it is necessary to inquire into the various physical causes which determine the extent of double-cropping. Muzaffarpur, the most densely populated district in the whole of the Middle Ganges Valley, has the highest percentage of double-cropped area, that is 55·3 per cent of the cultivable area. The district of Gaya is ‘largely a one-cropped district and for its one crop depends mainly on artificial irrigation’. It is interesting to note that the index of the economic importance of double-cropping is as high as 33·6 in the case of the thana town Gaya, and this is due to extensive areas of garden land surrounding the city.
