Science: Hydroponic Troubles

The founder of the science of hydroponics was annoyed with the world last week. He had just heard that one more company had been organized to market plant-nourishing chemicals for growing plants in water, and in his testy opinion one more company made about a dozen too many.

The fact that vegetables and flowers will grow in water if nutrient salts are added has been known for nearly a century. At the University of California ten years ago, however, William Frederick Gericke, who has the big, gnarled, capable hands of a born farmer (he...

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