Abstract

                                Field experiments, conducted during 1993 to 1996 with subsurface drip irrigation (drippers are placed on the surface) for coconut in a farmer's field in Coimbatore showed that application of 112 lit/day/ tree registered 133 nuts/tree/year. The water saving was 63 per cent in the drip over the conventional basin method. The yield increase was 7.25 per cent over the conventional method. In subsurface drip irrigation system, a labour saving of 75 per cent was recorded over the conventional method for irrigation work alone.

Key words : Subsurface drip system, Sand filter, Mesh filter, Lateral, Micro tube and Drippers