Attached is a pic. from a farmvist to a sugarcane field of a progressive farmer.
The farmer by the name of Nitin Tawde has used a simple technique to drain excess water in a field that uses flood irrigation. As explained by him, the excess water drained leads to reduced salt deposits in the soil and thus improves soil quaility as well as yeild in from the field.
Though he has used this technique for his sugarcane crop, the same idea can be used on any field and for any crop other than ones needing flood irrigation.
For draining soil of excess water, plastic pipe is laid at a depth of 3 feet below the ground. These pipes are perforated to allow water to enter the pipes. To prevent soil entering and clogging the pipes, they are wrapped in a porous but non-rottable cloth. These buried pipes are carried to an outlet drain. The pipes are laid across the length of the field at a slightly sloping angle, with a distance of about 50 feet from each other.
The farmer has claimed improved yeild with this technique and has been able to get 6 consescutive sugarcane crop from the land thus prepared.
Am quoting what I have saw and heard verbatim.
Many of our Farmnest members had an animated discussion with the farmer, and may be able to answer queries if any.