A plant growing system configured for high density crop growth and yield, including an environmentally-controlled growing chamber and a vertical growth column within, the column configured to support a hydroponic plant growth module which is configured for containing and supporting plant growth media for containing and supporting a root structure of at least one gravitropic crop plant growing therein and for detachably mounting to the vertical growth column, the hydroponic plant growth module including a lateral growth opening to allow the plant to grow laterally through toward a light emitting source, a nutrient supply system to direct aqueous crop nutrient solution through an upper opening of the hydroponic plant growth module, an airflow source to direct airflow away from the growth opening and through an under-canopy of the plant, so as to disturb the boundary layer, and a control system for regulating, at least one growing condition in an area in or adjacent to the under-canopy.

A method and apparatus for continuous automated growing of plants utilizes a vertical array of plant supporting arms extending radially from a central axis. Each arm has a plurality of pot receptacles which receive the plant seedling and liquid nutrients and water. The potting arms are rotated beneath grow lamps and pollinating arms. The frequency of feeding is increased as the plants grow. CO² enriched air may also be provided. Once the plants are ready to harvest, they are manually exchanged for new seedlings and packaged.

Described is an air distributing bar device for sprayers wherein the casing (2) into which the air is fed comprises a break (8) that creates a double wall where the air flows out through suitable openings (11), creating air flows that are perfectly uniform along the full length of the distributor itself.