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WO1993019584A1 - Appareil de sterilisation d'une matiere de culture - Google Patents

Appareil de sterilisation d'une matiere de culture Download PDF

Info

Publication number
WO1993019584A1
WO1993019584A1 PCT/NL1993/000075 NL9300075W WO9319584A1 WO 1993019584 A1 WO1993019584 A1 WO 1993019584A1 NL 9300075 W NL9300075 W NL 9300075W WO 9319584 A1 WO9319584 A1 WO 9319584A1
Authority
WO
WIPO (PCT)
Prior art keywords
holder
culture material
tray
feeding
openings
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.)
Ceased
Application number
PCT/NL1993/000075
Other languages
English (en)
Inventor
Hendrik Leonardus Koenen
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.)
GROWING SYSTEMS BV
Original Assignee
GROWING SYSTEMS BV
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
Application filed by GROWING SYSTEMS BV filed Critical GROWING SYSTEMS BV
Publication of WO1993019584A1 publication Critical patent/WO1993019584A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • A01G11/00—Sterilising soil by steam

Definitions

  • the invention relates to a holder for culture material.
  • Such holders are generally known.
  • culture material can be understood any porous medium that is suitable for cultivating crops, such as peat dust, synthetic fibre mats, mineral wool and mixtures of the above materials with each other and with other materials, for instance sand.
  • the culture material is in any case usually made of non-biodegradable materials so that it cannot be processed well as waste. The purchase of new culture material is moreover expensive.
  • a device is known from the Netherlands patent application 8503027 for cleaning such material.
  • the culture material is removed from the holders and placed in a separate sterilization area arranged in a truck.
  • the culture material is then sterilized by a sterilizing medium, for instance steam.
  • a sterilizing medium for instance steam.
  • the present invention endeavours to provide a device and a H-athod with which the above stated problems are obviated.
  • This object is achieved by means for feeding a gaseous meaning medium to the culture material.
  • fig. 1 shows a partly broken away perspective view of a first embodiment of a holder according to the invention
  • fig. 2 shows a partly broken away perspective view of a second embodiment of a holder according to the invention
  • fig. 3 is a partly broken away perspective view of a third embodiment of a holder according to the invention
  • fig. 4 shows a partly broken away perspective view of a fourth embodiment of a holder according to the invention
  • fig. 5 is a sectional view of a fifth embodiment of a holder according to the invention
  • fig. 6 is a partly schematic view of a device according to the invention.
  • the holder depicted in fig. 1 is formed by a double-walled tray 1 in which is arranged a quantity of culture material 2.
  • This culture material may be formed by peat dust, soil, mineral wool, synthetic fibre mats, mixtures thereof or mixtures thereof with sand or another filler material.
  • an enclosed channel 3 is created which is normally used for draining the excess water supplied to the culture material 2 for instance by a sprayer system.
  • a stepped elevation 5 Arranged in the internal bottom 4 of tray 1 in the vicinity of the side walls is a stepped elevation 5, wherein this elevation is joined to the actual internal bottom 4 by means of walls 6 extending substantially vertically. These walls 6 do not necessarily have to extend vertically, however, they may also be inclining, although it is important that they form a connection between two different horizontal levels, wherein they thus possess a vertical component. A series of slot-like openings 7 is arranged in the walls 6 which are used for draining excess water.
  • a gaseous cleaning medium is fed to the channel 3 by means of a device to be discussed later.
  • the embodiment shown in fig. 2 differs from the embodiment of fig. 1 in that the stepped elevation is omitted and in that openings 7 are arranged in the bottom.
  • the openings 7 are arranged in the side walls 6. It is thus possible to choose an embodiment adapted to the culture material, crop or watering method in use.
  • Shown in fig. 4 is the other embodiment, wherein a pipe 9 bent in a zigzag is arranged in a tray 8. The pipe 9 is arranged on the bottom of the tray. Holes 10 are arranged in the top and in the upper part of the sides of pipe 9. Drainage of the culture material 11 present in tray 8 takes place via holes 10 and, when the tray has to be sterilized, steam can be supplied by means of the pipe 9, wherein the steam passes through the holes 10.
  • a separate bottom 13 is arranged in a tray 12.
  • the bottom 13 has a zigzag-shaped section.
  • the bottom 13 is provided with supports 14.
  • this embodiment is also suitable for cultivating larger plants and cut flowers, for instance chrysanthemums 15.
  • the bottom plate 13 is folded over so that a portion of double thickness is obtained, and the plate is then folded downward so that a support 16 is also obtained in the vicinity of the sides.
  • Supports 16 and the double-folded portion 17 of the plate enclose a channel 18.
  • Perforations 19 are arranged in the deepest portions of the zigzag folded plate 13, perforations 20 are also arranged in the supports 14 situated in the middle and perforations 21 are arranged in the substantially horizontally extending parts 16.
  • the space under plate 13 is used for draining excess water. From the openings 19 this excess water enters the relevant channels, wherein due to the openings 14 between the channels a good distribution of the excess water is obtained.
  • the channels 18 For supplying steam use is made of the channels 18; the steam fed via channels 18 passes through openings 21 into the spaces under plate 13, wherein a good distribution is ensured by the openings 14. The steam passes through the openings 19 into the culture material, wherein the latter is cleaned.
  • fig. 6 shows how by means of a schematically shown steam boiler 22 and a conduit system 23 steam can be supplied to a connection stump 24 arranged on the trays. Also shown here is how the trays 1 are connected in series and how the groups of trays connected in series are connected in parallel. It will be apparent that the layout shown here only relates to a layout for supplying steam; each tray is provided with a separate discharge for draining excess drainage water. Although the above mentioned embodiments relate to sterilization by means of steam, it will be apparent that other gaseous sterilization means can also be applied for feeding the cleaning medium.
  • the channels for temperature control of the culture material. It is for instance possible to cool or heat the culture material. Heating of the culture material in particular results in a considerable energy-saving, because in many crops growth is stimulated by holding the roots at quite a high temperature. By heating only the culture material to this temperature, which is possible with the device according to the invention, it becomes possible to hold only the culture material at such a temperature and to heat the greenhouse to a lower tempera ⁇ ture.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Soil Sciences (AREA)
  • Apparatus Associated With Microorganisms And Enzymes (AREA)
  • Cultivation Receptacles Or Flower-Pots, Or Pots For Seedlings (AREA)

Abstract

Support (1,8) pour matière de culture (2, 11) dans lequel des éléments (4, 7, 9, 12) sont prévus pour alimenter la matière de culture (2, 11) en milieu gazeux de nettoyage ou de modification de la température. Grâce notamment à l'action de nettoyage du milieu gazeux, par exemple de la vapeur d'eau, on peut nettoyer in situ ladite matière de culture (2, 11). On évite ainsi la nécessité de retirer la matière de culture (2, 11) de son support (1,8) lorsqu'on veut la nettoyer.
PCT/NL1993/000075 1992-03-30 1993-03-26 Appareil de sterilisation d'une matiere de culture Ceased WO1993019584A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL9200587A NL9200587A (nl) 1992-03-30 1992-03-30 Inrichting voor het steriliseren van teeltmateriaal.
NL9200587 1992-03-30

Publications (1)

Publication Number Publication Date
WO1993019584A1 true WO1993019584A1 (fr) 1993-10-14

Family

ID=19860633

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NL1993/000075 Ceased WO1993019584A1 (fr) 1992-03-30 1993-03-26 Appareil de sterilisation d'une matiere de culture

Country Status (3)

Country Link
AU (1) AU3908393A (fr)
NL (1) NL9200587A (fr)
WO (1) WO1993019584A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL2010590C2 (en) * 2013-04-09 2014-10-13 Stichting Dienst Landbouwkundi Method for growing perennial fruit-bearing plants and arrangement comprising such plants.
WO2014184406A1 (fr) * 2013-05-14 2014-11-20 Comercial J. Huete, S.L. Dispositif pour cultures

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1858330A (en) * 1927-03-19 1932-05-17 Horning Franz Installation for heating the ground
DE560063C (de) * 1929-02-04 1932-09-28 Tomas Dvorak Vorrichtung zum Erwaermen, Sterilisieren und Befeuchten des Erdbodens
US2350721A (en) * 1942-09-19 1944-06-06 Clifford R Brown Greenhouse
US3250606A (en) * 1965-02-24 1966-05-10 Hans A Eggerss Nutrient sea-solids solution for hydroponic farming
DE8913836U1 (de) * 1989-11-23 1990-03-15 Stadur Produktions GmbH, 2160 Stade Vorrichtung zur Bildung von Anpflanzungen, insbesondere zur Aufzucht von Pflanzen
EP0464954A2 (fr) * 1990-07-06 1992-01-08 Edward John Simon Appareil de propagation par transplant

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1858330A (en) * 1927-03-19 1932-05-17 Horning Franz Installation for heating the ground
DE560063C (de) * 1929-02-04 1932-09-28 Tomas Dvorak Vorrichtung zum Erwaermen, Sterilisieren und Befeuchten des Erdbodens
US2350721A (en) * 1942-09-19 1944-06-06 Clifford R Brown Greenhouse
US3250606A (en) * 1965-02-24 1966-05-10 Hans A Eggerss Nutrient sea-solids solution for hydroponic farming
DE8913836U1 (de) * 1989-11-23 1990-03-15 Stadur Produktions GmbH, 2160 Stade Vorrichtung zur Bildung von Anpflanzungen, insbesondere zur Aufzucht von Pflanzen
EP0464954A2 (fr) * 1990-07-06 1992-01-08 Edward John Simon Appareil de propagation par transplant

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL2010590C2 (en) * 2013-04-09 2014-10-13 Stichting Dienst Landbouwkundi Method for growing perennial fruit-bearing plants and arrangement comprising such plants.
WO2014184406A1 (fr) * 2013-05-14 2014-11-20 Comercial J. Huete, S.L. Dispositif pour cultures

Also Published As

Publication number Publication date
NL9200587A (nl) 1993-10-18
AU3908393A (en) 1993-11-08

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