| 摘要 |
A plant-growing system (1) includes a covering material (2) filled with a substrate (3) for growing plants (5). The covering material (2) has a bag form or a tubular form and is made of a water-impermeable resin sheet of woven or nonwoven fabric having a basis weight of 20 to 100 g/m<2>, a visible-ray reflectance of more than 60%, and an air-permeability of 10 to 200 sec/100 cc. Thus, the substrate (3) does not suffer oxygen shortage, thereby promoting healthy growth of plant roots. Excellent air-permeability prevents an excessive rise in moisture and temperature within the plant-growing system. Further, since excess water is drained from the substrate (3) to maintain a constant water level within the substrate, watering is easy to perform, and excess watering does not cause root rot. In a plant-growing method, the plant-growing system (1) is placed on a ground surface (20) while the covering material (2) is held by a metallic part (30) at its bottom as well as at its both side walls or single side wall. Thus, the metallic part (30) keeps the covering material (2) in shape. Further, the plant-growing system (1) may be placed on a ridge (21) formed on ground, whereby water contained in the covering material is divided by the ridge (21) such that water is held along a lower section of each slope of the ridge. Thus, the plant-growing system can be placed stably on an unflat ground. <IMAGE> |
