CN1505470A - Hydroponic feeder and cooler - Google Patents

Hydroponic feeder and cooler Download PDF

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Publication number
CN1505470A
CN1505470A CNA018231608A CN01823160A CN1505470A CN 1505470 A CN1505470 A CN 1505470A CN A018231608 A CNA018231608 A CN A018231608A CN 01823160 A CN01823160 A CN 01823160A CN 1505470 A CN1505470 A CN 1505470A
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CN
China
Prior art keywords
liquid
reservoir
plant
wall
pond
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CNA018231608A
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Chinese (zh)
Inventor
克莱顿・伯尔特
克莱顿·伯尔特
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Publication of CN1505470A publication Critical patent/CN1505470A/en
Pending legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G31/00—Soilless cultivation, e.g. hydroponics
    • A01G31/02—Special apparatus therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/232—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles
    • B01F23/2321—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles by moving liquid and gas in counter current
    • B01F23/23211—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles by moving liquid and gas in counter current the liquid flowing in a thin film to absorb the gas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/234—Surface aerating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/234—Surface aerating
    • B01F23/2341—Surface aerating by cascading, spraying or projecting a liquid into a gaseous atmosphere
    • B01F23/23412—Surface aerating by cascading, spraying or projecting a liquid into a gaseous atmosphere using liquid falling from orifices in a gaseous atmosphere, the orifices being exits from perforations, tubes or chimneys
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G31/00—Soilless cultivation, e.g. hydroponics
    • A01G2031/006—Soilless cultivation, e.g. hydroponics with means for recycling the nutritive solution
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/90—Heating or cooling systems
    • B01F2035/98—Cooling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/06—Walls
    • F25D23/061—Walls with conduit means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
    • F25D2400/10—Refrigerator top-coolers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D31/00—Other cooling or freezing apparatus
    • F25D31/002—Liquid coolers, e.g. beverage cooler
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
    • Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
    • Y02P60/21—Dinitrogen oxide [N2O], e.g. using aquaponics, hydroponics or efficiency measures

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Hydroponics (AREA)

Abstract

An apparatus and method for supplying an aqueous liquid for plants utilizes a reservoir (14) having inside walls. There is a conduit (30) for discharging the liquid so the liquid flows along walls of the reservoir. There is a cooler (100) for cooling the walls so the liquid flowing along the walls is thereby cooled. For example, the reservoir may comprise a converted chest-type freezer unit. There may be an opening in the walls of the reservoir and the fan (52) located in the opening to direct air into the reservoir and aerate liquid therein.

Description

Water is planted the water-feed and the cooler of usefulness
Technical field
The present invention relates to plant supply and the device and method that waters, and particularly relate to the device and method that is used for supplying, cooling off and provide inflation solution to the plant root that hydroponics is educated.
Background technology
Hydroponics is educated plant and is comprised to the plant roots supply aqueous solution, for example by solution being ejected on the root or by root being suspended in the saturated medium of solution.This solution mainly is the water that has the nutrient component of fertilizer and other interpolation.Optimum growth or or even the existence of plant require to provide the solution that is rich in air to root, and remain within the specific temperature range.Usually, this temperature range is to be lower than the above desired temperature range of part of plant roots.This conforms to the situation of occurring in nature, and at occurring in nature, when plant growing, plant roots is arranged in colder soil, and the upper part of plant is in the common air warmer than the soil.
The hydroponics work of educating is usually included in the aqueous solution and is supplied to and cools off this aqueous solution with a cooler before the plant roots.This cooler normally be used for that the reservoir of storing solution separates.In addition, the reply aeration is so that the growth optimization of plant.Like this, usually, just need independent aerating device again.It may be complicated setting up all these equipment, and installs also comparatively expensive.
In No. the 4159595th, the United States Patent (USP) of Dalle a kind of groove that holds that is used for keeping certain quantity of fluid has been shown, it is equipped with a float, to keep constant liquid level., when a flexible pipe flows, liquid is heated or cools off at liquid.
The United States Patent (USP) the 5813168th of Glendening has disclosed the greenhouse of a kind of environmentally friendly ground control.There, the plant cultivation bed of thing of water is placed on the top of interchanger.
Australian Patent disclosed for No. 9187730 a kind of with root system keep the method that cultivates plants of colder relatively hydroponics.
The United States Patent (USP) of Rohosa has disclosed a kind of method that cultivates plants No. 5634294, and wherein, a fan blower is connected on the pipe network, and injects air continuously under pressure.
The United States Patent (USP) of Springer has disclosed a kind of miniature environmental temperature control device that is used to heat and/or cool off plant for No. 4577435.This cooling is finished by pipe.
Other relates to water and plants the patent of system temperature control and comprise No. the 500484th, European patent and United States Patent (USP) No. 4780989.The latter has disclosed a kind of groove that holds of nutrient component.In holding groove, water is heated.European patent has disclosed the groove that holds that has a float.
Disclosed the another kind of compartment system that is used for nutrient component in No. the 4527353rd, the United States Patent (USP), it comprises a float that holds groove and keep liquid level.
The leachate that has disclosed a kind of inflation in No. the 4992942nd, United States Patent (USP) holds groove.
But prior art do not disclose a kind of simple economy, can be used for simultaneously storage of water solution and cool off it and to its inflation device.
Therefore, an object of the present invention is to provide a kind of improved, economic reliable device, the aqueous solution that it can be used in plant root reaches desired pile crown, and no matter this plant is a water is planted or be grown in the soil.
Another purpose of the present invention provides a kind of improved device, and it can be stored and cool such aqueous solutions simultaneously.
A further object of the present invention provides a kind of improved device, and it can suppress algae grows by using an opaque container.
Of the present invention also have a purpose to provide a kind of improved device, and it can also be to aeration, and need not an independent equipment.
Summary of the invention
According to an aspect of the present invention, provide a kind of device that is used for providing the aqueous solution for plant.This device comprises that one has the reservoir of inwall.Be provided with a pipeline that is used to discharge liquid, so that liquid flows along the wall of reservoir.Thereby being provided with one is used for cooling wall and makes the cooler that is cooled along the wall flowing liquid.
Be preferably a hole is set in the wall of reservoir, and a fan is set in the hole, so that air is introduced in the reservoir, thereby and to liquid aerating.
This device of one preferred embodiment has a top, and described pipeline is near the top of reservoir, and reservoir has the pond liquid below pipeline, thereby liquid just flows on wall and also flows to downwards in this pond liquid.Wall is cooled, thus cooling liquid.
According to a further aspect in the invention, provide a kind of method that is used for handling the aqueous solution that is used for plant.This method may further comprise the steps: be provided for a reservoir of liquid, and be provided at the pond aqueous solution in the reservoir.Cool off this reservoir, thereby cool off this aqueous solution.
Be preferably, this method comprises the step of the degree of depth of regulating this pond liquid, and reservoir has above this pond liquid the wall that extends, and liquid is by along described wall guided and flow in the pond downwards.The wall of cooling reservoir, thereby cooling liquid.
Can force air to enter into liquid top, this pond of reservoir, with to liquid aerating.
The accompanying drawing summary
In the accompanying drawings:
The end view that Fig. 1 is used to the part of a device of the plant supply aqueous solution to illustrate according to an embodiment of the invention;
Fig. 2 is the end view that the part of its reservoir is cut open;
Fig. 3 is the axonometric three-dimensional view of the signal of its reservoir; And
Fig. 4 is the pallet of its combination and the axonometric three-dimensional view of control device.
Embodiment
At first referring to Fig. 1, the figure shows the device 10 that the aqueous solution 12 that is used for being contained in a reservoir 14 is fed to the root 16 of a plant 18.This reservoir is provided with a top 20, a bottom 22 and madial wall 24.Being provided with a pipeline near the top of reservoir, is a jet pipe 30 in this case, is used to discharge liquid, so that liquid flows down along the inwall of reservoir, as shown in arrow 32.In the present embodiment, wall is vertical substantially, and has the four sides wall to form front 80, the back side 82 and two sides 84 and 86 of this device, as indicating among Fig. 3.
In this certain embodiments, reservoir comprises a refrigerating plant 40 repacking, cabinet type, and as shown in Figure 2, this refrigerating plant is generally used for family expenses storage frozen food.Using such device is because of its economy, reliable, and can store a pond liquid 12, as shown in Figure 1.The sidewall of refrigerating plant and top and bottom are heat insulation.All walls have an inner casing 44, a shell 46 and therebetween heat-barrier material 48.Usually shell is to make with the steel plate of japanning, and inner casing is then made with plastics or corrosion protection material.These are to come from the refrigerating plant repacking of a standard.As conventional, use the pipeline that is filled with freon to cool off these walls.Therefore, refrigerating plant 40 provides the reservoir of sealing for this device.Top 20 can be opened at hinge 46 places by traditional mode, for the inside of people near reservoir.But when closing, the inside of reservoir is to separate hermetically with hereinafter described fan 22 substantially.
Repacking to refrigerating plant 40 is minimal, and comprises a hole 50 that is formed in this special refrigerating plant back, and fans 52 are admitted in this hole 50, as among Fig. 1 clearly shown in.As can be seen, fan is arranged in the top of top surface of the aqueous solution 12 of reservoir.In this certain embodiments, fan is a computer cooling fan, although also can substitute with other fan.This fan is dried to refrigerating plant, shown in the arrow among Fig. 1 60.Be filled with the hole that also is provided with the break-through wall between the pipe of freon, be used to transport the pipeline of nutrient solution.
As shown in Figure 3, remain on liquid level in the reservoir by a float mechanism 64.This comprises a float 66 that is installed on the arm 68, and this arm links to each other with a valve place of working in pallet 70.Perhaps, float mechanism can be similar with the float system that is used for toilet flush, so that water level is controlled.In the present embodiment, this valve is accepted the water from domestic water, and opens or closes to keep the liquid level of the liquid 12 in the reservoir.
There is a pump 70 to be connected to a standpipe 72.This standpipe is connected to jet pipe 30 again, and in the present embodiment, jet pipe 30 segment section ground are along front 80 and the back side 82 and side 84 extensions of refrigerating plant 40.As mentioned above, the top 20 of contiguous this device of jet pipe, and on inwall 24 atomizing of liquids.As seen, liquid lets droop on sidewall and drops down in the pond of liquid 12 in Fig. 3.Because the inner pipe that is filled with freon has cooled off these walls, so so just cooled off liquid.
There is a pipeline 90 to be connected to standpipe 72, with these plant of the root 16 that supplies liquid to plant 18 and other.Shower nozzle 92 ejects water on the root 16.
One drip tray 94 is set, is used to catch liquid, and this liquid is sent back in the reservoir via pipeline 98 from the root drippage.
Refrigerating plant has the compressor and the heat exchanger assemblies 100 of a standard, and this assembly cools off the wall of refrigerating plant.From the supply socket 102 of a standard, by the control device power supply of electric wire 104 and 106 in compressor and pallet 70.
Figure 4 illustrates pallet 70 more details.Control valve is installed in the inside of housing 120.Also be provided with one and be used for admitting the cavity 130 of the various supplies such as fertilizer.This pallet also accommodates temperature controller 140 and nutriment meter (food meter) 142.In the present embodiment, the detector 144 of nutriment meter is installed on the bar 146 that is connected to pallet by wing nut 148.Hygrosensor 150 also is housed on this bar.
At work, the reservoir 14 that comprises refrigerating plant 40 in the present embodiment partly is perfused with the aqueous solution that comprises fertilizer or plant employed other material in the operation usually at water.But should also be noted in that this device can be used for too or is suitable for based on the cultivation of soil operation.The some parts of inwall 24 is exposed to the below of jet pipe 30, and liquid can be flowed down along the wall that exposes, and shown in the arrow among Fig. 1 32, thereby cools off this liquid.
The tank depth of liquid 12 is regulated by float mechanism 64.When liquid level is lower than a scheduled volume, by pipeline 130 water inlets.With pump 70 liquid upwards is pumped into jet pipe 30.Pump also pumping liquid passes standpipe 72 and passes pipeline 90, and arrives shower nozzle 92.Liquid is injected on the root 16.Excess liquid drops onto in the pallet 94, and is pumped back reservoir by pipeline 98.
Come the inflation of the water in the reservoir by fan 52, this just need not independent aerating device.Therefore, the invention provides a kind of be used to supply liquid to plant root, incorporate reservoir, aerating device and cooling device.
Those those skilled in the art that will appreciate that, above many details of being provided only provide by way of example, be not to want to limit protection scope of the present invention, protection scope of the present invention is to explain with reference to following claim.

Claims (22)

1. one kind is used for providing for plant the device of the aqueous solution, and it comprises:
One has the reservoir of inwall;
One pipeline is used to discharge liquid, so that liquid is mobile along the wall of reservoir;
One cooler is cooled to make along the wall flowing liquid thereby be used for cooling wall.
2. device as claimed in claim 1 is characterized in that reservoir has a top, and described pipeline is near the top of reservoir, and reservoir has the pond liquid below pipeline, thereby liquid just flows on wall and also flows to this pond liquid downwards.
3. device as claimed in claim 2 is characterized in that, wall is vertical substantially.
4. device as claimed in claim 1 is characterized in that wall is heat insulation.
5. device as claimed in claim 1 is characterized in that reservoir seals.
6. device as claimed in claim 1 is characterized in that, this device comprises the refrigerating plant of a repacking.
7. device as claimed in claim 6 is characterized in that, refrigerating plant is a cabinet type refrigerating plant.
8. device as claimed in claim 5 is characterized in that, is included in the hole in the wall of reservoir and is arranged in the fan in this hole, so that air is introduced in the reservoir, to liquid aerating.
9. device as claimed in claim 2 is characterized in that, comprises a pump, is connected to pipeline described pump work, to be used for that liquid is pumped into pipeline from this pond liquid.
10. device as claimed in claim 2 is characterized in that, comprises the device of the degree of depth that is used for regulating this pond liquid.
11. device as claimed in claim 10 is characterized in that, the device that is used for regulating comprises a float mechanism.
12. device as claimed in claim 1 is characterized in that, pipeline extends around at least a portion at reservoir top.
13. device as claimed in claim 12 is characterized in that, pipeline has a plurality of spaced apart settings, is used to discharge the aperture of liquid.
14. a method that is used for handling the aqueous solution that is used for plant, it may further comprise the steps:
Be provided for a reservoir of liquid;
Be provided at the pond aqueous solution in the reservoir; And
Cool off this reservoir, thereby and cool off this aqueous solution.
15. method as claimed in claim 14 is characterized in that, comprises the step of the degree of depth of regulating this pond liquid, and reservoir has above this pond liquid the wall that extends, liquid is by along described wall guided and flow in the pond downwards.
16. method as claimed in claim 15 is characterized in that, liquid is pumped to a position of liquid top, this pond from this pond liquid, and then by along wall guided, wall is cooled, thus cooling liquid.
17. method as claimed in claim 15 is characterized in that, forces air to enter into reservoir, this pond liquid top, with to liquid aerating.
18. method as claimed in claim 14 is characterized in that, liquid is caused plant from reservoir.
19. method as claimed in claim 18 is characterized in that, liquid is led back to reservoir from plant.
20. an aqueous solution that is used in plant reaches the device of desired state, it comprises:
One cabinet type refrigerating plant, it has an inside, a top, a bottom, two side and the hole in sidewall;
Be installed in and be used for air is imported a fan of this device in this hole;
Inner and around refrigerating plant near its sidewall and a near jet pipe that extends its top;
Be used for the aqueous solution is fed to a pipeline of jet pipe;
Be used to be adjusted in the device of a pond liquid of refrigerating plant inside, take this, sidewall extends above this pond liquid, so that the liquid of discharging from jet pipe flows and flows into this pond liquid downwards at wall.
Be used for liquid is caused from refrigerating plant the discharge line of plant; And
Be used for liquid is sent back to from plant an input duct of refrigerating plant.
21. device as claimed in claim 20 is characterized in that, the device that is used to regulate is a float mechanism.
22. device as claimed in claim 20 is characterized in that, fan is positioned at the top of this pond liquid.
CNA018231608A 2001-04-19 2001-04-19 Hydroponic feeder and cooler Pending CN1505470A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CA2001/000531 WO2002085103A1 (en) 2001-04-19 2001-04-19 Hydroponic feeder and cooler

Publications (1)

Publication Number Publication Date
CN1505470A true CN1505470A (en) 2004-06-16

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ID=4143139

Family Applications (1)

Application Number Title Priority Date Filing Date
CNA018231608A Pending CN1505470A (en) 2001-04-19 2001-04-19 Hydroponic feeder and cooler

Country Status (7)

Country Link
EP (1) EP1387610A1 (en)
JP (1) JP2004520847A (en)
KR (1) KR20040004588A (en)
CN (1) CN1505470A (en)
CA (1) CA2444532A1 (en)
MX (1) MXPA03009544A (en)
WO (1) WO2002085103A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2887470A1 (en) * 2005-06-24 2006-12-29 Air Liquide Procedure and apparatus for dissolving a gas in a liquid, especially oxygen in water, uses nozzles to inject liquid into chamber partly filled with gas
US10588276B2 (en) 2018-08-07 2020-03-17 Flow-Rite Controls, Ltd. Hydroponic nutrient aeration and flow control device and system

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3713218A (en) * 1970-05-14 1973-01-30 E Laike Device for the cooling and preliminary treatment of milk fresh from the cow
US4159595A (en) 1975-01-07 1979-07-03 Commissariat A L'energie Atomique Installation for cultivating plants
US4577435A (en) 1981-08-17 1986-03-25 Springer Edward A Micro-climate temperature control apparatus
US4527353A (en) 1983-04-04 1985-07-09 Newby John C Irrigation/fertilization control and distribution system
US4780989A (en) 1986-04-30 1988-11-01 Mears Structures, Inc. Hydroponic assembly
DE3733440A1 (en) * 1987-10-02 1989-04-13 Sick Optik Elektronik Erwin METHOD AND DEVICE FOR SUPPLEMENTING THE NUTRITIONAL SOLUTION OF HYDROCULTURES
FR2672770B1 (en) 1991-02-19 1993-06-18 Premel Cabic METHOD AND INSTALLATION FOR TEMPERATURE REGULATION FOR A PLANT CULTURE.
US5634294A (en) 1991-11-08 1997-06-03 Rohoza; Alex Method of enhancing the growth of plants
US5813168A (en) 1993-04-29 1998-09-29 Mccolliberry Farms, Inc. Environmentally controlled greenhouse

Also Published As

Publication number Publication date
JP2004520847A (en) 2004-07-15
EP1387610A1 (en) 2004-02-11
CA2444532A1 (en) 2002-10-31
KR20040004588A (en) 2004-01-13
WO2002085103A1 (en) 2002-10-31
MXPA03009544A (en) 2004-12-06

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