ABSTRACT
The efficiency of rainfall is profoundly influenced by the structure or the texture of the soil. The efficiency of the soil in respect of its physical and chemical conditions and in the matter of the supply of plant food is also very much affected by high temperature caused by the deficiency of rainfall. In the western portion of the Gangetic Plain the annual rainfall is scanty, and this region is liable to suffer from unseasonable distribution of rainfall. Naturally, there has been a phenomenal increase in the density of population in the Western Gangetic Plain as a result of this rapid development of canal irrigation. The eastern and the central portions of Upper Gangetic Plain enjoy inherent natural advantages which have increased agricultural productivity and have created more stable conditions of agriculture by facilitating the development of elastic and unfailing sources of artificial irrigation.
