irrigation- process of supplying water for agriculture by artificial means

• what is the need for irrigation?

• what are the differences between ground and surface water?

• what are the methods of irrigation

• what is an aquifer?

well irrigation [40%]

📍northern states

• why is it more prevalent in northern states

• advantages

• disadvantages

tank irrigation [12%]

📍south india

• why is it more prevalent in southern states?

• advantages

• disadvantages

canals irrigation [40%]

📍north india

• why is it more prevalent in northern states?

📍north india - bhakra nangal canal, agra canal

📍south india - tungabhadra canal

• advantages
• disadvantages

other methods

spray irrigation

long hose is connected to a spray gun, it is expensive and requires complicated machinery

drip irrigation

most efficient and advanced, used for fruits and vegetables, perforated pipes are placed between rows of crops to prevent any water loss.

sprinkler irrigation

sprinkling water like rainfall

rainwater harvesting

it is a method of conserving rainwater to meet the water requirements of man in the non rainy season.

objectives

• reduce soil erosion
• reduce surface run off
• improve quality of ground water

methods

• rooftop rainwater harvesting
• dug wells