hydroponics(redirected from Soilless gardening)
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Related to Soilless gardening: hydroponics
hydroponicsthe science of growing plants without soil, in which the roots are suspended in aerated water containing known quantities of chemicals that can be adjusted to suit changing conditions. The method is increasingly common in the glasshouse cultivation of, for example, tomatoes and cucumbers.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005