02-20-2012, 10:08 AM
Semi-Hydroponics involves the use of an inert medium, in single-pot, passive culture. The classic definition of "hydroponics" involves recirculation pumps, automated monitoring and adjustment of the solution chemistry.
- Semi-hydroponics involves more labor (mixing fertilizers and actually watering),
- requires a medium (while classic hydro may- or may not),
- does not require monitoring of the solution chemistry (it is fresh at every watering),
- requires no investment in tanks, pumps, flood tables, or instrumentation, and
- by not sharing a common, recirculating bath of nutrient solution, eliminates the ideal vector for sharing plant pathogens.
Ray Barkalow, Orchid Iconoclast
Using science and logic to advance orchid growing
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