| 摘要 |
Mini forcing tunnel of the linear cloche type made of transparent material and comprising, at its top, a gutter which is closed at its ends, characterised in that the said gutter is provided, on the one hand, with minuscule holes (E) and (E') and, on the other hand, the said gutter comprises at its bottom, on the lower internal face in the mini greenhouse, a concavity (A') which is edged laterally with hanging parts (B) and (B') intended to form drops of water so as to make it possible to direct the water condensed inside the said mini greenhouse equally, on either side of the sown row (3), after placing a layer of sand (D) in the gutter which is intended, on the one hand, to form an accumulation of cold at night and, on the other hand, to form a solar screen and an accumulation of heat for the watering water during the day. <IMAGE>
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