HYDERABAD: At a time when the state government is constructing major irrigation projects by changing its existing designs, former engineer-in-chief and former consultant to UN, T Hanumantha Rao has said the ‘Four Waters Concept’ watershed programme, which is his brainchild, is cost effective. This would recharge ground water and provide irrigation to three crops in a year, he added.
Delivering Dr Marri Channa Reddy Memorial Lecture on the topic, ‘Water For All - No Water Wars’, here on Saturday, Hanumantha Rao explained with powerpoint presentation on how simple it is to construct a watershed without using cement in villages.
Hanumantha Rao said the Four Waters Concept technology would consist mainly ten types of works and four vegetative activities.
‘The Four Waters Concept’ technology was first adopted in Nampi Project in Hebei province in China and later in the new watersheds in Andhra Pradesh between 2000-2004. “Through the Four Waters Concept, groundwater can irrigate three crops at a meagre cost of `15,000 per hectare, whereas a new major irrigation project in Telangana costs `8 lakh per hectare and provide water for only one irrigated dry crop during the rainy period of the Kharif season,” Hanumantha Rao said. Due to this advantage, no new major or medium irrigation project is required to be executed in the country, he claimed.