I was reading a hydroponics book by Richard Nicholls... he says hydroponic gardening is much more efficient than conventional gardening, provided you want to raise plenty of vegetables. My jaw dropped when I read the part about a million barrels of oil a week being required to make the fertilizer used on conventional soil-grown crops!
After reading much of the book, I was sold... there just happens to be a hydroponics supply store about a mile from my home, and they carry all sorts of nutrient mixes and aggregates, not to mention tubs and fancy water-circulation systems. It seems like everyone who tries hydroponics uses it for growing tomatoes... but I want to use it for growing corn.
At this point, I'm thinking of buying a big tub, a small electric water pump, and maybe a small electric submersible heater, along with an aggregate such as pea gravel or maybe those red clay balls they sell at the hydroponics store... am wondering if it's possible to grow corn in winter, in on my patio, here in Los Angeles? Anyother posters have experience with hydroponics?