WO2003022038A1 - Capilar controlled watering of plants - Google Patents
Capilar controlled watering of plants Download PDFInfo
- Publication number
- WO2003022038A1 WO2003022038A1 PCT/DK2002/000578 DK0200578W WO03022038A1 WO 2003022038 A1 WO2003022038 A1 WO 2003022038A1 DK 0200578 W DK0200578 W DK 0200578W WO 03022038 A1 WO03022038 A1 WO 03022038A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- reservoir
- liquid
- cultivation
- plants
- layer
- Prior art date
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
- A01G27/00—Self-acting watering devices, e.g. for flower-pots
- A01G27/04—Self-acting watering devices, e.g. for flower-pots using wicks or the like
Definitions
- the present invention relates to a method and container for the cultivation of ornamental plants.
- a technique for controlling the cell elongation of plants with a reduced application of chemical retarding agents is known within the art as drought stress.
- the reduction of the application of chemical retarding agents is highly desirable from an environmental point of view.
- Furthermore the durability of plants in which the growth has been retarded by the application of drought stress has been shown to be improved [1].
- peat moss suffers from a number of disadvantages which are especially serious in connection with the conditions prevailing under drought stress. Specifically the ability of peat moss to absorb water is reduced when the moisture content of the peat moss is low. Consequently it becomes in practice difficult to approach the drought limit because this reduced ability to absorb water may prevent the driest plants from receiving water at all. A consequence of these watering problems is that the uniformity of the plants is reduced and hence an increased waste of plants in a production is generally the result.
- a typical problem in connection with watering of pot plants especially at the customer furthermore results from an excessively large supply of water resulting in the formation of a layer of water at the button of the flower pot and associated flower pot saucer.
- the roots of the plant in the pot will suffer from suffocation due to a lack of sufficient air supply to the roots. It would thus be advantageous to provide a bottom portion in the flower pot into which portion the roots of the plant does not penetrate, the thickness of this bottom portion being for instance equal to or larger than the depth of an associated flower pot saucer.
- a very accurate dosage of the cultivation liquid supply to each individual plant as required for instance when said technique of drought stress to control the growth of plants is applied can be obtained by providing said pots or containers with a rapidly absorbing reservoir which can absorb a sufficient amount of cultivation liquid (i.e. water possibly mixed with a suitable fertiliser) from a supply of such cultivation liquid and thereafter gradually pass the absorbed cultivation liquid on to the plant(s) in said pot or container.
- cultivation liquid i.e. water possibly mixed with a suitable fertiliser
- rapidly absorbing should simply means that the rapidly absorbing material is able to absorb a given quantity of liquid more rapidly than the cultivation substance used in the particular case will be able to absorb a similar quantity.
- a possible way of implementing said rapidly absorbing reservoir is to provide a pot or container comprising one or more access openings for cultivation liquid at the bottom surface hereof with a layer of rapidly absorbing material immediately above these access openings, above which rapidly absorbing layer a layer of suitable cultivation substance containing a least a major portion of the roots of the plant is provided.
- the cultivation substance will absorb water and fertiliser directly from the reservoir layer at a slower rate than the rate by which liquid is absorbed from the liquid supply by the rapidly absorbing layer.
- a number of materials can be suitable for each of these layers.
- One of the characteristics determining the rate of absorption of the material will be the dimension of the pores of the material, a large pore size providing a relatively more rapid absorption of liquid than a smaller pore size.
- a specific embodiment of a layered reservoir system of the above kind will be discussed in the detailed description of the invention.
- this controlling means is provided by a thin layer of liquid impermeable material provided with a pattern of through holes providing controlled liquid communication between the rapidly absorbing layer and the cultivation substance.
- Other means such as a layer of showily liquid permeable material of sufficient thickness should also be used, and other equivalent means may be devised by a person skilled in the art without departing from the scope of the present invention as defined in the claims.
- Figure 1 is a cross-sectional view of a flowerpot comprising material according to a first embodiment the invention
- Figure 2 is a cross sectional view of a flower pot comprising material according to a second embodiment of the invention.
- Figure 3 is a graph over gross weight of container for a normal production method applying drought stress and for a similar method applying a container according to the present invention.
- the pot 1 comprises a number of access openings 3 distributed over the bottom face 4 of the pot. Directly above these access openings 3 there is located said rapidly absorbing reservoir, which according to this embodiment consists of a layer 5 of a porous material with relatively large pores and hence the ability to rapidly absorb a liquid via the access openings 3 from a liquid source (not shown) and also to contain a relatively large amount of such liquid. Above and in contact with the layer 5 there is provided a second porous layer 6 of a suitable cultivation substance such as peat moss with relatively smaller pores than layer 5. When the reservoir layer 5 has been filled with liquid the liquid is gradually sucked up into the cultivation layer 6, from where it is absorbed by the roots 7 of the plant 2.
- the volume of the reservoir layer 5 will be approximately 20 to 25% of the total volume of the reservoir layer 5 and the cultivation substrate 6. Under certain circumstances the volume of the reservoir layer 5 may however be reduced to approximately 10% of the total volume (when the amount of liquid supplied during each watering session is to be very limited). A volume of the reservoir layer 5 of up to approximately 40% of the total volume may however be relevant in certain other cases.
- FIG. 2 there is shown a second embodiment of the present invention comprising a liquid flow controlling means interposed between the reservoir layer 5 and the cultivation substance 6.
- said controlling means is provided by a thin film 8 made from a liquid impermeable material and provided by a suitable number of through holes 9 for liquid communication between the reservoir layer 5 and the cultivation layer 6.
- the flow of liquid can in this manner be controlled for instance through a proper dimensioning of the diameter of the holes 9 and the thickness of the foil 8 and also by the choice of the numbers of the holes 9.
- FIG. 3 here is shown a graph over the gross weight of a pot (i.e. the material in the pot and the plant) as a function of time for a traditional production system applying the drought stress technique for controlling the growth of plants but not applying pots with a reservoir layer according to the invention and for a production system applying pots according to the present invention. It is evident from the graph that there in case of traditionally drought stress grown plants will be large intervals of time (several days) after the supply of liquid has taken place, where no drought stress effect will occur at all. In fact only some 10 to 20 percent of the production time a drought stress effect will be obtained.
Landscapes
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Cultivation Receptacles Or Flower-Pots, Or Pots For Seedlings (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Catching Or Destruction (AREA)
- Nozzles (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DK02758187T DK1427273T3 (en) | 2001-09-07 | 2002-09-06 | Capillary controlled watering of plants |
CA002497938A CA2497938A1 (en) | 2001-09-07 | 2002-09-06 | Capilar controlled watering of plants |
DE60219487T DE60219487D1 (en) | 2001-09-07 | 2002-09-06 | CAPILLARY CONTROLLED IRRIGATION OF PLANTS |
US10/488,871 US7040055B2 (en) | 2001-09-07 | 2002-09-06 | Capilar controlled watering of plants |
EP02758187A EP1427273B1 (en) | 2001-09-07 | 2002-09-06 | Capilar controlled watering of plants |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DKPA200101311 | 2001-09-07 | ||
DKPA200101311 | 2001-09-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003022038A1 true WO2003022038A1 (en) | 2003-03-20 |
Family
ID=8160701
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DK2002/000578 WO2003022038A1 (en) | 2001-09-07 | 2002-09-06 | Capilar controlled watering of plants |
Country Status (7)
Country | Link |
---|---|
US (1) | US7040055B2 (en) |
EP (1) | EP1427273B1 (en) |
AT (1) | ATE358970T1 (en) |
CA (1) | CA2497938A1 (en) |
DE (1) | DE60219487D1 (en) |
DK (1) | DK1427273T3 (en) |
WO (1) | WO2003022038A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003094596A2 (en) * | 2002-05-09 | 2003-11-20 | Aharon Gelfer | Plant wetting method and apparatus |
WO2004017718A1 (en) * | 2002-08-15 | 2004-03-04 | Rockwool Internatonal A/S | Method and environment for growing plants |
WO2005115128A1 (en) * | 2004-05-14 | 2005-12-08 | Wright Paul L | System and method for promoting growth of multiple root systems in a hydroponic environment |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB0511736D0 (en) * | 2005-06-09 | 2005-07-20 | Pegram Ian | A plant pot insert |
US8112936B1 (en) * | 2005-11-18 | 2012-02-14 | Andy Eugene Maslin | Container-based plant husbandry apparatus and controlled horticultural environment for using same |
US9578820B2 (en) * | 2006-11-28 | 2017-02-28 | Jeno Muthiah | Watering systems |
KR20210078062A (en) * | 2019-12-18 | 2021-06-28 | 엘지전자 주식회사 | Plant cultivating apparatus |
CN112816624B (en) * | 2020-12-31 | 2022-12-02 | 安徽农业大学 | Waterlogging stress test method |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2849044A1 (en) * | 1978-11-11 | 1980-05-22 | Hoelter Heinz | Moisture store for flower pots - consists of casing with water-storage substances |
FR2599934A1 (en) * | 1986-06-13 | 1987-12-18 | Beekenkamp Gerrit | Substrate for plants, particularly pot plants, composed of a water-retaining product, of a drainage product and of compost, and container or culture pot relating thereto |
CH675941A5 (en) * | 1989-03-09 | 1990-11-30 | Hanspeter Dr Med Roost | Plant pot needing only infrequent watering - includes fluid storage chamber and watering equipment with chamber in bottom of pot having filling of light expanded clay |
WO1992004823A1 (en) * | 1990-09-14 | 1992-04-02 | Frederick Charles Coles | Soil irrigation and drainage system |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2814161A (en) * | 1955-07-29 | 1957-11-26 | Winifred L Hawkins | Plant receptacle |
NL266549A (en) * | 1961-03-09 | |||
US4231188A (en) * | 1978-12-26 | 1980-11-04 | Mcguire John J | Method and system for propagating of plants |
US5193306A (en) * | 1990-07-02 | 1993-03-16 | Blake Whisenant | Plant cultivation apparatus and method |
NL9401236A (en) * | 1994-07-28 | 1996-03-01 | Rockwool Grodan Bv | Substrate and working method for multiple cultivation. |
US6178691B1 (en) * | 1997-05-08 | 2001-01-30 | Universit{acute over (e)} Laval | Capillary carpet irrigation system |
NL1009780C2 (en) * | 1998-07-31 | 2000-02-01 | Peter Hubertus Elisabeth Van D | Plant pot. |
US20040237386A1 (en) * | 2001-09-07 | 2004-12-02 | Kristian Madsen | Production method and system for ornamental plants |
GB0219062D0 (en) * | 2002-08-15 | 2002-09-25 | Rockwool Int | Method and environment for growing plants |
-
2002
- 2002-09-06 US US10/488,871 patent/US7040055B2/en not_active Expired - Fee Related
- 2002-09-06 CA CA002497938A patent/CA2497938A1/en not_active Abandoned
- 2002-09-06 DE DE60219487T patent/DE60219487D1/en not_active Expired - Lifetime
- 2002-09-06 WO PCT/DK2002/000578 patent/WO2003022038A1/en active IP Right Grant
- 2002-09-06 EP EP02758187A patent/EP1427273B1/en not_active Expired - Lifetime
- 2002-09-06 AT AT02758187T patent/ATE358970T1/en not_active IP Right Cessation
- 2002-09-06 DK DK02758187T patent/DK1427273T3/en active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2849044A1 (en) * | 1978-11-11 | 1980-05-22 | Hoelter Heinz | Moisture store for flower pots - consists of casing with water-storage substances |
FR2599934A1 (en) * | 1986-06-13 | 1987-12-18 | Beekenkamp Gerrit | Substrate for plants, particularly pot plants, composed of a water-retaining product, of a drainage product and of compost, and container or culture pot relating thereto |
CH675941A5 (en) * | 1989-03-09 | 1990-11-30 | Hanspeter Dr Med Roost | Plant pot needing only infrequent watering - includes fluid storage chamber and watering equipment with chamber in bottom of pot having filling of light expanded clay |
WO1992004823A1 (en) * | 1990-09-14 | 1992-04-02 | Frederick Charles Coles | Soil irrigation and drainage system |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003094596A2 (en) * | 2002-05-09 | 2003-11-20 | Aharon Gelfer | Plant wetting method and apparatus |
WO2003094596A3 (en) * | 2002-05-09 | 2004-02-19 | Aharon Gelfer | Plant wetting method and apparatus |
US6986224B2 (en) | 2002-05-09 | 2006-01-17 | Aharon Gelfer | Plant wetting method and apparatus |
WO2004017718A1 (en) * | 2002-08-15 | 2004-03-04 | Rockwool Internatonal A/S | Method and environment for growing plants |
US7607258B2 (en) | 2002-08-15 | 2009-10-27 | Rockwool International A/S | Method and environment for growing plants |
WO2005115128A1 (en) * | 2004-05-14 | 2005-12-08 | Wright Paul L | System and method for promoting growth of multiple root systems in a hydroponic environment |
Also Published As
Publication number | Publication date |
---|---|
EP1427273B1 (en) | 2007-04-11 |
ATE358970T1 (en) | 2007-05-15 |
US7040055B2 (en) | 2006-05-09 |
DK1427273T3 (en) | 2007-08-13 |
DE60219487D1 (en) | 2007-05-24 |
US20040237402A1 (en) | 2004-12-02 |
EP1427273A1 (en) | 2004-06-16 |
CA2497938A1 (en) | 2003-03-20 |
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