Word: vetch
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Dates: during 1937-1937
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...business of growing plants in water is centuries old. Long before the Christian era it was believed that plants got all their sustenance from water. In 1699 a natural historian named John Woodward grew spearmint, potatoes and vetch in water from springs and rivers. First experiments which involved adding nutrient chemicals to the water are credited to a German named Knop (1859). Growing commercial crops in water is another matter. At Berkeley, Dr. Gericke aimed at producing tank crops which would economically compete with or surpass soil-grown crops. So successful was he that several California vegetable and flower growers...