anleggning for cultivation of vexter, as deployed in a mangfald langstreckta rennor

摘要

In an apparatus for growing plants contained in elongate troughs, a plurality of such troughs (1), while being supplied with nutrient solution, are intermittently advanced in parallel relationship and in succession in a direction perpendicular to the longitudinal directions of the troughs themselves through a generally closed circuit including two bed sections (5A, 5B) arranged straight above one another and two elevators (17A, 17B) provided at the respective ends of said bed sections and being adapted to transfer the troughs (1) one by one between them. The troughs (1) are advanced in opposite directions over the respective bed sections (5A, 5B) by driving means preferably comprising at least one motor-driven carriage (12A, 12B) for each bed section (5A, 5B), each such carriage being reciprocatable along and above its related bed section and having vertically adjustable driving dogs (16) for engaging and slidingly displacing one trough (1) at a time.