 Besides these are found everywhere low-lying beds of clay in which water collects during the rains and rice alone can be grown; these clay beds are known as Jhabar.In the Kurka and trans-Yamuna tract several other classes of soil are met with.In the ravines of the river and the land immediately adjacent to them are found fields full of kankar and gravel, the soil of which is called Pakar; this is in fact a sandy soil mixed with gravel.