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Little River, TX | There is a text Subirrigation and Controlled Drainage.
Edited by H. W. Belcher & Frank M. D'ltri both of Michigan State.
Published by Lewis Publishers
What I gathered when I read the book many years ago was it only works when the water table is maintained at the same level as the tile system. when the water table goes below the water table the irrigation effect is lost.
For the system to work you need a reservoir where you store the discharged drainage water and later plug the outlet and pump the stored water back in at the head of the system,
The system works as long as the soil is moist at and above the level of the pipes. It will not push water through dry soil.
This is not too much different than normal irrigation, HERE. Here we can not put enough water on a field during July and August if the soil is not close to capacity going into July.
What this means, HERE, is supplemental irrigation only works if we irrigate starting late February or early March. Which is fine during a dry season, but if it decides to rain in April and May at best we just wasted a lot of money pumping water. On the other hand if it also rains enough in June then we can go into July with water saturated soil and that is not good.
You will find a lot of irrigated land is also tile drained. The drainage is to allow the salts to leave the property and go some where else.
Regardless it is interesting reading. | |
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Irrigation with drain tile?
