WATER LOGGING.

1] The abundendent supply of irrigation water tempts the cultivators to use more water than the requirement of the crop grown.

2] The excess water supplied to the field would percolate into the soil.

3] Due to constant percolation of large quantity of water, the ground water table would be raised so much that it may completely saturate the root zone of the crops grown.

4] With complete saturation of the soil pores, the normal circulation of air in the root zone of the crops is cut off.

5] The agricultural land rendered in this state is said to be water logged and this phenomenon is called water logging.

ILL – EFFECTS.

1] Water logging itself is an ill effect of irrigation.

2] The fertility of a water logged soil is lost, resulting in a considerably low crop yield.

3] Further in course of time such land turns saline or alkaline and ultimately becomes unfit for cultivation.

CONTROL MEASURES.

1] Reducing percolation from irrigation channel.

2] Reducing percolation from water course and field.

3] Encouraging economical use of water.

4] Increasing outflow from ground water reserves.