§ 14562

14562. 'Soilless growing medium' means a medium of an inorganic substance, such as sand or gravel, or in a soilless organic material such as sphagnum peat or pine bark, and periodically watered with a primary or secondary plant nutrient or micronutrient solution, or both.(Repealed and added by Stats. 1990, Ch. 504, Sec. 2.)