salination of rivers
salination of rivers
you could be taking water from a river with bacteria or oil and chemicals
Examples of irrigation system are,Perennial irrigation (Dams)Direct irrigation (river canal irrigation)Storage irrigation (tanks and resevoirs)
`Chain pump system of irrigation is a traditional method of irrigation.
need of irrigation: insufficient of rainfall uneven distribution of rainfall improvement of perennial crops. mode of irrigation: 1. Lift irrigation 2. flow irrigation
salination of rivers
i am not sure.
salination of rivers for one
fertilizers
irrigation
barna
Improvements in irrigation
Uncontrolled water supply
irrigation
The Sumerians couldn't take the heat so they made a irrigation system. The built canals that connect to the river but the problem was that there crops would get ruined from the floods the irrigation system.
They build a kind of irrigation system
From wikipedia: "Irrigation" is an artificial application of water to the soil.The problem must be the Aral Sea shrinkage.The Aral Sea lost 90% of its volume within a few decades due to the intense irrigation of cotton and rice fields in Central Asia since 1960s.