The problem is generally thought to extend internationally, although even rough estimates of conveyance loss are not
available. Irrigation of cropland has become widely a used practice throughout the world and has greatly increased the
productivity of farmland. It has made it possible to farm in regions that would not be farmable without irrigation. But,
with nearly 70% of the total water use throughout the world coming from irrigation for cropland, the need for newer and
more efficient practices is clearly important (Disrude, 2004).