Deep tube well
Deep
tube wells are of large diameter with depth ranges from 60-300 m. In deep tube well, a powerful pump goes inside the well and
operates in force mode to lift the water onto the surface. These types of tube
wells possess a large discharge capacity of about 80-200 Ls-1. With an increase in discharge capacity, the length and
width of the water distribution channels need to be increased accordingly.This
water-smart technology ensures higher water use efficiency as compared to the
surface canal irrigation. It enhances resilience against water stress in the
area where canal irrigation is not possible. However,adequate recharging of
groundwater and proper crop planning needs to be ensured for arresting the
rapid decline of groundwater.