Just as impressionable souls once believed that colonic irrigation drained poisons from the body, we now need to rid our brains of their waste material.
The floats are designed: (1) to implement horizontally spreading water plants to the surface of irrigation drains, fields, or treatment ponds in order to eliminate dissolved P; and (2) to allow harvest of the standing crop and therefore removal of the accumulated P. The float provides a platform to stimulate the growth and spreading of the planted water plants.
Some authors have recommended [ 33, 34] or rejected [ 35, 36] the use of continuous suction irrigation drains with antibiotics added to the irrigation solution.
The San Luis Drain was a separate project by BoR in an attempt to keep contaminated irrigation drainage water out of the San Joaquin River, emptying into Kesterson Reservoir where the water would evaporate or seep into the ground.
One, called intermittent irrigation, involves draining rice fields midseason, along with occasional irrigation.
But then its leaders started paying attention to the warnings of environmentalists, who pointed out that irrigation was draining a nonreplenishable supply of underground freshwater.
Rainfall was the most important factor that determines the water reuse efficiency (WRR) of OFTs, since higher rainfall resulted in higher surplus irrigation water draining out of OFTs without reuse, and thus decreased WRR.
In the early 80s, selenium pollution led to a major die-off of birds, fish, and other life forms in the San Luis National Wildlife Refuge into which these polluted irrigation waters drained.
Interestingly, some authors have recommended the use of continuous irrigation-suction drains after arthroscopic joint lavage [ 4, 25, 29, 33], while others have recommended the so-called distension-irrigation described by Jackson [ 11, 32, 49].
Depending on the forecast, adjustments can be made to affected parts of fields, including changes to irrigation systems to drain off excess water, or decisions such as holding off on applying fertilizer or pesticides.
