Abstract: A transportable fodder production unit (1) comprising an insulated container (4) wherein said insulated container (4) contains a racking system (7), an irrigation system (11), a lighting system (15) and a thermal control system (6), said racking system (7) having a plurality of shelves (8) extending from the rear of the container (4) to the front of the container (4), said shelves (8) being of sufficient width to receive at least one fodder growing tray (10) and of sufficient depth to receive a predetermined number of rows of trays (10) to cycle through the container (4) in a growing period whereby seeded trays (10) can be loaded onto the rear of the shelves (8) and trays (10) with mats of grown fodder can be removed from the front of the shelves (8), said trays (10) being urged forward by an operator as the fodder progresses through the growing period and wherein the irrigation system (11) comprises a plurality of spray heads (9) positioned in the racking system (7) for periodically spraying each tray (10) w

Abstract: A capillary hydration system and method for facilitating the growth of plants are provided. An exemplary system comprises a base having a reservoir for holding nutrient solution, and an insert portion. The insert portion comprises at least one downwardly extending plant receiving depression that is capable of holding growth substrate. The plant receiving depression has at least one capillary opening such that when the capillary opening is in liquid communication with the nutrient solution in the reservoir, nutrient solution is wicked from the reservoir to the growth substrate by capillary action. In accordance with various exemplary embodiments, the capillary hydration system may further comprise cover, including a cover with a hatch for refilling the nutrient solution without removing the insert portion or the cover, and a nutrient supply level indicator.

Abstract: A computer controlled environment system and method are used to provide the optimum environmental and nutritional conditions for the growth and development of seed potato cuttings for the initiation and development of tubers that can be used as the seed source for further multiplication under field conditions as seed potato stock. Use of a controlled environment system and method that provides optimum cultural conditions results in rapid growth and development of the potato cutting so as up to six crops of tubers can be harvested in a calendar year.

Abstract: A walk-in device for growing plants has a shelf system for receiving individual plants. An illumination device for illuminating the individual plants is provided. The shelf system is arranged about the illumination device that is centrally positioned within the shelf system. The shelf system is designed to position the individual plants such that the individual plants are oriented toward the illumination device. The individual segments of the shelf system are movable relative to the illumination device by rollers or on rails.

Abstract: A bioreactor includes a nutrient reservoir, a rotatable culture bed, at least one culture carrier medium, a mist generator and a mist delivery pipe. The nutrient reservoir stores therein a nutrient solution required for the fungus, plant cell, tissue, organ, hairy roots and plantlet. The rotatable culture bed is rotated at a specified speed. The at least one culture medium has thereon the fungus, plant cell, tissue, organ, hairy roots and plantlet and is supported on the rotatable culture bed. The mist generator is used for producing mists of the nutrient solution. The mist delivery pipe delivers therein the mists of the nutrient solution and has a mist-exit port adjusted to a desired level above the culture medium so as to discharge and spray the mists over the fungus, plant cell, tissue, organ, hairy roots and plantlet.

Abstract: A computer controlled environment system and method are used to provide the optimum environmental and nutritional conditions for the growth and development of seed potato cuttings for the initiation and development of tubers that can be used as the seed source for further multiplication under field conditions as seed potato stock. Use of a controlled environment system and method that provides optimum cultural conditions results in rapid growth and development of the potato cutting so as up to six crops of tubers can be harvested in a calendar year.

Abstract: A system and method of aeroponic farming includes depositing seeds in a flat containing micro-fleece cloth and placing the flat within a growth chamber. The upper side of the flat is subjected to light of the proper frequencies to promote growth in plants. A nutrient solution is sprayed onto the micro-fleece cloth and the developing root mass of the plants, while controlling temperature, humidity, and carbon dioxide within the growth chamber. The plants are harvested resulting from the seeds at a desired stage of growth. The growth chambers can be stacked on each other and/or located side by side to save space within a facility, and to permit sharing the subsystems which control the nutrient solution, temperature, humidity, and carbon dioxide for the growth chambers.

Abstract: A floatable plant cultivation system that comprises a plurality of buoyant bases secured together and float on a water surface. One or more of the bases includes means for supporting one or more plants. The bases have side edges that abut one another and are secured together. In a preferred embodiment, the bases are rectangular mats fabricated from a closed-cell foam plastic material. Each of the bases has at least one side edge wherein a plurality of indentations are spaced apart along the side edge forming a plurality of protrusions and each indentation is positioned between consecutively spaced protrusions. The side edges of respective bases are joined together such that the protrusions on one base are positioned in mating relationship with the indentations of another base. In addition, or alternatively, the bases can be secured together by clips.

Abstract: A gardening system includes a modular seed cartridge including a rigid, cup-shaped receptacle including an upper portion having an outer rim, a soilless growth medium located in the rigid, cup-shaped receptacle, and at least one seed in contact with the soilless growth medium. The gardening system also includes an aeroponic or hydroponic garden including a chamber including a lower portion for storing a liquid nutrient solution, a cover located above the chamber, the cover including a plant opening adapted to removably support the modular seed cartridge by the outer rim, and a pump located in the chamber and adapted to circulate the liquid nutrient solution from the lower portion of the chamber to the modular seed cartridge supported by the plant opening.

Abstract: A system for transplant production comprises: at least one air conditioner installed in a completely light shielding closed structure surrounded by a thermally insulated wall, for controlling temperature and humidity of air in the closed structure; at least one box-shaped culturing module disposed in an internal space of the closed structure, having a front face opening which is opened to the internal space of the closed structure; a plurality of transplant production shelves arranged vertically in a multi-layer in the culturing module to form a transplant production space between upper and lower transplant production shelves; a plurality of plug trays for holding a plant growing medium mounted on each transplant production shelf; a sub-irrigation unit capable of irrigation from a bottom of the plug trays mounted on each transplant production shelf; an artificial lighting unit provided on a back of each transplant production shelf for irradiating light to the lower plug trays; and at least one air fan fixed t

Abstract: A hydroponic growing unit having a base shaped to hold liquid, the outer periphery of the base defined by an outer, vertical base wall. The unit has a vertical plant support wall forming a generally annular enclosure, the support wall mounted on the wall of the base to extend above the base and to enclose space above the base. There is at least one opening in the support wall providing access to the enclosed space and to the inner surface of the support wall. The opening is normally closed by at least one wall panel forming part of the support wall. The unit has vertical light means mounted in the center of the annular enclosure. Planting block support means are arranged on the inner surface of the support wall near the top and planting blocks, in which plants are planted, are mounted on the support means in a circle to have the plants face the central light means.

Abstract: The introduction of a slow rocking or tilting action that can tilt the growing chambers of a rotary sprouter back so that they become containment vessels for holding water or cleaning solution thereby transforming the rotary sprouter into becoming a front-load type sprout washing machine. The frame supporting the chambers is supported by pivots that enable push/pull actuators to tilt the frame and growing chambers back and forth. The rotation coupled with the slow rocking motion effects agitation of the solution and product inside thus providing for effective washing action for both seed and sprouts. The washing action is place under automatic control to effect washing cycles that can be repeated as frequent and as many times as is necessary for disinfecting the sprouts.

Abstract: A resin cultivating base serves as seedling beds for vegetation which are planted and are partially immersed in a river, lake, marsh, pond or waterway. The resin cultivating base is a three-dimensional structure constituted by long and short filaments of thermoplastic resin. The long and short filaments are curled or looped at random, and contacted, entwined and gathered, thereby forming a low density portion and a high density portion. Vegetables planted on the low density portion of the resin cultivating base suck nutritious salt such as phosphor and nitride. Microorganisms living in the resin cultivating base decompose organisms in the water, thereby purifying the water.

Abstract: Modular plant growing apparatus includes a housing formed of inner and outer walls, opposed side walls, a bottom wall, and a top wall interconnected to define an enclosure. A liquid nutrient solution reservoir is formed in the enclosure by lower portions of the bottom, opposed side, and the inner and outer walls. The inner wall defines plant supporting structure including horizontally extending, vertically separated corrugations, each corrugation including a lower surface with a plurality of horizontally spaced apart plant receiving openings into the enclosure. A pump is positioned in the reservoir. A manifold and distribution conduits in liquid communication with the pump, include spray nozzles associated with the plant receiving openings within the enclosure for supplying liquid nutrient solution to roots of plants positioned in the plant receiving openings.

Abstract: A floatable plant cultivation device includes a plurality of hollow floatable parts and each floatable part has a pot engaged with a first passage in a center of the floatable part. The pot receives a plant therein. The multiple floatable parts are connected with each other by a plurality of connection members. Each connection member includes several engaging ends which are engaged with second passages defined in different floatable parts.

Abstract: A modular type tray (1) for hydroponic and aeroponic cultivation is described, in which the nutritive solution is carried to the roots of plants grown in the tray by a tube with built-in drips (2) situated in a slot (3) on the tray bottom. The tray consists of at least one plastic casing made by extrusion, a pair of closing flanges (5, 6) to be fixed to the opposite tray ends and (if necessary) at least one middle flange (7), placed between two plastic casings to join them together with a watertight seal.

Abstract: The invention relates to a plant growing system having a plurality of interconnected and elongated members for supporting growing plants. The system is preferably integrated with an irrigation system to provide a complete hydroponics system.

Abstract: An object of the present invention is to provide plant cultivator for research purposes for finding the optimum cultivation environment for plants, using LEDs as light source and a control system therefor. An illumination window 6 is provided in top face 5a of a cabinet body 2 surrounded by thermally insulating walls. In addition, an LED illumination element 16 is arranged in this illumination window 6 and in the vicinity of LED illumination element 16, there is provided LED control means that controls the LED illumination element 16. In addition, in cabinet body 2, there are provided at least some of a growth detection sensor that detects the state of growth of the plants, cultivation environment monitoring means that monitors the cultivation environment of the plants and cultivation environment generating means that generates the cultivation environment; and cultivation environment control means is provided that controls the cultivation environment generating means.

Abstract: The present invention provides a micro gravity environmental control apparatus, such as a plant cultivating apparatus, an animal raising apparatus, and a micro gravity environmental control method, such as a plant cultivating method, an animal raising method, a breeding method, capable of cultivating a plant and raising an animal by using soil and also capable of recovering moisture supplied to the soil so as to reuse the moisture, under a weightless environment or a micro gravity environment. There is provided a micro gravity environmental control apparatus comprising a chamber, an air suction pipe arranged in the vicinity of a lower end portion within the chamber, and an air sucking part communicated and connected with the air suction pipe and used for sucking air within the chamber out of the chamber.

Abstract: The invention relates to a plant growing system having a plurality of interconnected and elongated members for supporting growing plants. The system is preferably integrated with an irrigation system to provide a complete hydroponics system.

Abstract: A self-contained hydroponic growing enclosure and method for the fabrication of animal feed grass from seed is described. The enclosure is a self-contained enclosure which is insulated and which can be transported or assembled on site and which is independent of outside climatic conditions. Seed is stored in an isolated portion of the enclosure and fed to germination tanks in predetermined quantities where the seeds are germinated for a predetermined period of time. The tanks are then drained of their iodine-treated water and the germinated seeds are placed in predetermined quantities onto trays which are placed at an inlet end of a racking system. Trays are removed with grown grass at a harvest outlet end of the racking system in the same sequence as they are placed at the inlet end, so that there is a continuous daily supply of feed grass. Light walls are provided on opposed sides of the racking system to illuminate the beds.

Abstract: An automated system for providing a continuous yield of fresh agricultural produce. The system includes a housing including at least one zone for plant growth and at least one zone for holding automated robotic equipment. Robotic equipment includes a robotic device including at least one robotic arm for seeding seeds being stored in a seed reservoir in the seeding locations, for planting seedlings in the planting locations and for harvesting mature plants from the planting locations. Further disclosed are devices and methods for increasing efficiency of plant transfer and minimizing root damage during transfer. Further disclosed are devices and methods for increasing efficiency of plant growing, by providing oxygen dissolved in irrigation water to the plant roots.

Abstract: A substantially automated, sealable, soiless plant growing apparatus for maximizing plant growth by maximizing light and CO2 consumption by the plant and controlling the plants reproductive cycle by controlling its environment. A light timer controls the grow light and can simulates a photo period. A pump timer can control the watering cycle and drainage switch. The plant growing environment can be fully, partially, or un-controlled in conditions such as light, temperature, humidity, irrigation, and atmosphere.

Abstract: A plant micropropagation apparatus (100) and process is provided in which a support platform (110) for vessels (12) containing a liquid growth media are periodically pivoted which brings about an intermittent immersion of the plant tissue/growth substrate in the growth media. The motion of the support platform (110) may optionally be used to engage a piston operated dispenser (14) for supplying aseptic media to the sealed vessel (12). The intermittent immersion also provides for an improved method of separating viable embryos from culture materials using a separation matrix in conjunction with the intermittent wave motion of the plant media when suspended in a liquid culture.

Abstract: An automated system for providing a continuous yield of fresh agricultural produce. The system includes a housing including at least one zone for plant growth and at least one zone for holding automated robotic equipment. Robotic equipment includes a robotic device including at least one robotic arm for seeding seeds being stored in a seed reservoir in the seeding locations, for planting seedlings in the planting locations and for harvesting mature plants from the planting locations. Further disclosed are devices and methods for increasing efficiency of plant transfer and minimizing root damage during transfer. Further disclosed are devices and methods for increasing efficiency of plant growing, by providing oxygen dissolved in irrigation water to the plant roots.

Abstract: Apparatus for growing vined produce such as tomatoes comprises a container rotatable about a horizontal axis and supported above an underlying surface, which container has an interior filled with rooting media, a plant opening, radially through the container wall for the vine of a tomato plant rooted therein to extend outwardly of the container. As the vine continues to grow outwardly of the container, tomatoes on the vine are harvested therefrom and the container is periodically rotated to wind the vine thereabout throughout the life of the plant. The container also includes feeding openings into the rooting media, and the container can be mounted on a stand provided with a nutrient reservoir and pump and a grow light which are periodically turned on and off by a control timer.

Abstract: A method for growing ornamental plants by hydroponic cultivation in a tank and on a piece of a tree and an apparatus therefor, including the steps of arranging a piece of a tree in a water tank; adhering support members to the piece of tree, the support members being water permeable and free to deform; placing a plant on the support members, the roots of the plant being integrated with soil, and supplying water so that the level of water becomes equal to or lower than that of the support members, thereby enabling the realization of hydroponic cultivation of the plants on the piece of tree.

Abstract: A system comprising a plate-shaped support for bulbous plants that can be positioned in a reservoir, which support is provided with a number of openings arranged in rows and columns, whilst the reservoir includes a number of ribs supporting said plate-shaped support, wherein said ribs extend at an acute angle to said rows and columns.

Abstract: A waterproof sheet is provided with fold lines to fold the sheet into a chamber for aeroponic and hydroponic culture. Additional waterproof sheets are provided with suitable fold lines for folding into stands for supporting the chamber in operative position. The sheets can be shipped in flat condition considerably decreasing the shipping expenses compared to voluminous prefabricated chambers and stands. The weight and the cost are also considerably diminished.

Abstract: A novel and improved method for relieving hydrophobicity of peat moss, bark and rockwool used in horticultural media for plant propagation using an effective level of a composition consisting of certain copolymerized alkane oxides as described. A more effective method of delivering these materials based on a composition of hydrous, amorphous silica using the compositions of the present invention is described.

Abstract: A living plant growth system (10) for controlled growth of plants under ambient conditions which may differ substantially from ideal, including one or more a plant growth assemblies (240), having a substrate bag (252), a rooting substrate (100) for supporting a growing plant (12), plant receiving zones for receiving viable growing plant material (12). A collapsible foliage bag (244) is provided to mate with the substrate bag (252) such that the stem portals (104) provide access to the interior of the foliage bag (244). The foliage bag (244) is inflatable such that the interior thereof provides an interior volume within which foliage of the plants (12) may grow. The foliage bag (244) has an enclosing material and a plurality of flexible support members (242) such that the foliage bag (244) maintains said interior volume when the interior air pressure is less than external air pressure.

Abstract: A hydroponic plant growth station having a growing board with a plurality of holes arranged in at least one vertical column of holes, a nutrient delivery channel disposed beneath the column of holes, and a supply of nutrient to the delivery channel.

Abstract: A bean sprout culture box assembly includes a water carrying plate defining an overflow port in one side wall thereof. A transparent box is supported on the water carrying plate and includes four side walls and a bottom portion. A plurality of vent holes are defined in each of the side walls of the transparent box, and a plurality of draining holes are defined in the bottom portion of the transparent box. A net plate is received in the transparent box and is supported on the bottom portion thereof, and a plurality of meshes are defined in the net plate and communicate with the draining holes. A transparent hood is mounted on an upper portion of the transparent box, and a plurality of vent ports are defined in the transparent hood.

Abstract: An automatic plant growing and harvesting system 10 which can be used in either zero gravity or full Earth gravity conditions for controlled growth of plants 14, The system 10 includes an enclosure 12 which is adapted to allow at least one plant 14 to grow within, where the plants 14 each generally have a stem 56, foliage 52 and a root portion 58. The system 10 includes an illumination system 27, a material supply system 60 having a nutrient supply 72 and a water supply 70. The system 10 also includes a root chamber 50, a retractor assembly 46 for controllably retracting a lower portion of the plant stems 56 into the root chamber 50, a harvesting assembly 102 and a controller 100 which directs the actions of the included systems and assemblies. The system 10 is provided with a variable speed fan 26 to aid in produce harvesting and self-pollination, and a gravity compensator 114 for preventing water vapor accumulation in stagnant areas.

Abstract: A multi-section enclosure adapted to support an artificial environment for growing plants. Vertical edges of opaque and transparent wall sections interlock with one another and horizontal edges mount to formed channels at a domed cover and support base. A sliding door cooperates with slide spacers fitted about an opening at the transparent wall. A plurality of hangers are suspended from a transparent divider panel which separates an internal illumination source and reflector from a growing space. Slide shutters mounted to vent apertures at the divider and cover cooperate with a fan at one of the divider apertures to control internal air circulation and temperature within the growing space. The spaced door and cover vent control make-up and exhaust air flow.

Abstract: A plant culture vessel includes a vessel body capable of housing therein a plant mount for mounting thereon a plant to be cultured and a culture medium for culturing the plant, and a top lid detachably attached to the vessel body. A support portion is provided on a peripheral wall of the vessel body in the form of a reduced-diameter portion projecting to the inside of the vessel body. The culture medium is housed in a space downwardly of the plant mount as supported on the support portion. A vertical communicating portion is provided between an outer edge of the plant mount and an inner peripheral wall portion of the vessel body for allowing vertical insertion of an instrument including a culture medium replacing instrument therethrough to the space downwardly of the plant mount.

Abstract: A novel and improved method for relieving hydrophobicity of peat moss, bark and rockwool used in horticultural media for plant propagation using an effective level of a composition consisting of certain copolymerized alkane oxides is described. A more effective method of delivering these materials based on a composition of hydrous, amorphous silica using the compositions of the present invention is described.

Abstract: Methods of maintaining or providing sterile or specific pathogen free environments are disclosed. The methods involve the use of semi-permeable membrane materials between the sterile or pathogen free environment and surrounding potentially hostile environments.

Abstract: A multistage plant culture method and apparatus for carrying out the method are disclosed. Culture beds constituted by rooting medium contained in culture containers and initially containing plant seedlings are moved, in order; from an uppermost level to a lowermost level after the plants have been grown at each level for a predetermined period. After cropping, the culture bed at the lowermost level is removed, and a new culture bed containing seedlings is placed at the vacant uppermost level. This sequence is repeated. The culture containers have a predetermined length and are supported on a plurality of support means arranged vertically at different heights. A culture container lift unit includes culture container holding means capable of movement towards or away from the culture containers, and also capable of holding the containers and moving them up or down to facilitate their movement between the different levels.

Abstract: Automated hydroponic plant growing apparatus, for providing an equal supply of nutrient solution, at a controlled rate, to plants in each of a plurality of individual growth chambers, with provision of flow irrigation of each plant in each chamber. The apparatus provides for fully powered, pressurized flow of nutrient solution through separate lines to each growth chamber, and provides for automatic maintenance of equal levels of nutrient solution in the various chambers of the system, having return flow lines for return of any excess accumulation of nutrient solution from any one growth chamber to the central distribution chamber. Through provision of pressurized flow of nutrient solution to the growth chambers, the system avoids any need to rely even in part on gravity flow of nutrient solution, and so may be used with all components located on a single level, e.g. all resting on a common floor.

Abstract: A nursery device is able to provide excellent drainage effect to incubate spear therein. The device features that a beveled bottom face provided therewith enables to direct water therein to flow from one end to another and eventually the water will flow out via a drainage hole defined in the beveled bottom face and openings defined in a bottom edge of the device.

Abstract: A conductive helical coil is spaced around the stem of a growing plant, and alternating current is passed through the coil to induce an electromotive force in the stem and stimulate growth.

Abstract: A systematic device for germinating plant seeds under controlled conditions is disclosed, consisting in its illustrated embodiment of a water-bearing container (1), biodegradable pods (2), clear cover (6) with an air hole (8), pod alignment plate (3), moisture indicator (9), germination mix (4), seed (5), fertilizer amendment (11), carrying handle (10) and watering tube (7). A new use of a paper coin envelope is disclosed as a method for germinating seeds and growing seedlings for direct introduction into an alternative growing medium without the necessity for transplantation.

Abstract: A gravity independent photosynthetic growing system (10) is provided for use in providing an environment conducive to growing plant materials under unusual conditions, such as are encountered in space or in locales isolated from sunlight. The growing system (10) includes a stationary core assembly (26), a rotating drum assembly (28) which is rotated by a motive assembly (30), an enclosing assembly (32), a growth requirements assembly (34) and a control assembly (35). Illumination lamps (42) situated in the central core (20) provide photosynthetic radiation which is transmitted through light transmissive sector walls (52) to be reflected inward from a surrounding cylindrical reflector (64) into growth sectors (50) within which the plants are grown. The growth sectors are adapted to receive seed mats (178), hard shell growth cases (204) and growth bags (188) which provide purchase for the plants.

Abstract: A plant propagation system and method are provided for promoting the growth of plant tissue into small plantlets. The plant propagation system includes sealed, semipermeable membrane vessels for completely enclosing plant material therein. The sealed vessels generally are translucent and permeable to gases and liquids while remaining impermeable to biological contaminates. Plant tissue originally extracted from a parent plant can be placed within the sealed vessels and grown heterotrophically. Once the plant material has developed the capability to photosynthesize, the sealed vessels can be transferred to a greenhouse environment for photoautotrophic growth. Once in a greenhouse environment, the sealed vessels are supported in trays and exposed to light, gases, water and a liquid nutrient solution for optimizing growth. A central controller can be included in order to automate the system for controlling the flow of fluids in and out of the vessel support trays while also monitoring system conditions.

Abstract: A molded plastic sheet has many rectangular sprout growing trays joined together at top peripheral flanges. Each tray has drainage holes and a bottom sloping to the holes. A sheet of many trays may grow sprouts in preproportioned amounts. The flanges are divided by partially cut through lines for separation after growing. A transparent clamshell container receives the tray and holds it in place by the flange when closed The container has a front portion and a rear portion joined by a hinge, with rectangular perimeters which snap sealingly together. The lower part of the container holds the tray. It is sealed water tight. Above that part, one or more ventilation passages are provided in the container sides so that the sprouts may continue to grow while on retail display. A hanging tab is provided on the container top with an easy opening adjacent flap.

Abstract: A seedling house for the germination and growing of seedling vegetables and flowers for the hobbyist gardener which is decorative and attractive, portable and disassemblable. In assembled relation, the seedling house includes shelves arranged in an ascending, step-wise fashion adapted with openings to receive plant pots containing the seeds or seedlings to be grown. The seedling house may be adapted with a covering and lighting to enhance the temperature/soil moisture growing conditions for the particular seeds/seedlings being grown.

Abstract: A culture vase comprises generally a transparent cylindrical body having an introversively spherical portion on the top and a less diameter opening on the bottom, a culture seat disposed into the opening and a cover having threads thereon coupled to a neck of the opening. Furthermore, both of the culture seat and the cover have at least an air inlet thereon in cooperation with a circular filter disposed thereinbetween, thereby, permitting the entrance of the fresh air and preventing the germs or bacteria from entering into the cultured explant.

Abstract: A micropropagation system and process for promoting the growth of plant tissue in a sterile environment is provided. The system includes a bioreactor in which the explant tissue is contained and grown. A plurality of fluid reservoirs are connected to the bioreactor for supplying sugar, nutrients, hormones, and water to the plant material. A controller and an analyzer are also included for automating the system by controlling flow rates and by monitoring media concentrations and levels within the bioreactor. Specifically, the controller is capable of monitoring system conditions and making the desired corrections by receiving data from the chemical analyzer. In particular, the controller is capable of calculating and maintaining volume levels of liquid growth media within the bioreactor chamber and maintaining the proper concentrations and proportions of components in the growth media.

Abstract: A fluid distribution panel (A) is illustrated, especially for use in a growth chamber, utilizing a plurality of spaced conical surfaces (B) which taper outwardly from a plenum into an enlarged fluid discharge opening for controlling the distribution of air across the plenum with minimal pressure drop or variation.