Water
logging is the situation when the productivity of agricultural land
gets affected by the high waterablity. Water logging results in
ill-aeration of plants. Water logging also makes tilling and
ploughing processes difficult. Water logging also leads to the growth
of unwanted plants like grass, weeds etc. and affects the growth of
the crops. Water logging is responsible for bacterial activity
retardation. Water logging also leads to salinity of soils. A saline
soil reduces osmotic activity of the plants. Thus crop yield is very
much affected by water logging. Some important causes for water
logging are intensive irrigation, seepage of water from the adjoining
high lands, inadequate surface drainage, inadequate natural drainage,
impervious obstruction, seepage of water through canals, irregular
topography, submergence due to the floods and excessive rains. The
important measures employed for water logging control are
introduction of lift irrigation, reducing the intensity of
irrigation, provision of intercepting drains, introduction of crop
rotation, lining of canals, provision of an efficient drainage
system, improving the natural drainage and optimum use of water.