The present invention relates to a container for propagating growth of seedlings. The present invention also relates to a tray designed for receive and carry one or more of said containers, a greenhouse including the tray and one or more of the mentioned containers, and a method for propagating growth of seedlings.
A variety of pots, trays and greenhouses that are used for promoting growth of a seed to a plant are commonly known in the art. According to a usual method, a container is used for planting and cultivating a seed to a plant. As soon as the plant has strike root and grown to a sufficient size, the plant is transplanted to a chosen location. It is then important, when carrying out the transplanting, to remove the plant along with its root structure together with the potting soil from the container. Failure could damage the roots. Also attempts to separate the root structure from the soil are likely to harm the roots. Each plant with its roots should be cultivated individually such that the root systems of any adjacent plants not are entangled with one another. Moreover, it is also important to produce a good root structure, where among other things a thick growth of the roots are promoted as well as vertical/downward extending straight roots are developed.
Over the years, many different kind of arrangements and systems for promoting growth of a seed to a plant have been put on the market. Through the patent document U.S. Pat. No. 4,998,378, a book-type container for raising seedlings is formerly known. From an ease of handling point of view and for practical reasons, the container disclosed in U.S. Pat. No. 4,998,378 is designed like a book/folder, where the folder sides are opened in order to remove a grown plant with its potted soil for transplanting. One problem of such a book-like design is that the handling of the container is rather complicated when preparing the container with soil and seeds, as well as when the plants and the potted soil are to be removed from the container for transplanting. The container necessitates a retainer as supporting structure in which the container can be upheld. The container is not suited to stand alone and can easily tip over. Consequently, plants and roots may easily be damaged during the handling of the container. Thus, the container is not secure, and the plants with the potted soil may fall apart if not handled with care. Another problem is that the container is not suitable for use in an irrigation system such as a greenhouse arrangement, and measures for providing watering and ventilation conditions are lacking. The watering is intended to be added at the open top of the container.
The objective of the present invention is to provide a container and a method for promoting growth of a seed to a plant, eliminating the disadvantages associated with prior art. A further objective is to achieve an improved container for promoting growth of a seed to a plant, that is secure, easy to handle and efficient in use. It is further an object to accomplish a container that could easily and quickly be brought into engagement/interaction with a tray, such in a greenhouse arrangement, and also in a simple manner be removed from there, while at the same time providing perfect watering and ventilation conditions for promoting ideal growth.
The above objectives are solved by the present invention which relates to a container for propagating growth of seedlings. The container is characterised by a main body comprising a base, a central wall extending vertically from the base. A first wall section and a second wall section are arranged to the main body. Respectively wall section is arranged alongside and spaced apart from each long side of the central wall of the main body. The main body has two opposing end walls at the respective short sides. The wall sections are provided with transverse wall segments, where the first wall section and the second wall section are hingeably connected to the main body for movement between a closed condition in engagement with the central wall and an opened condition disengaged from the central wall. The base, the central wall, the wall sections and segments forms in the closed condition at least two cells being open at top. The bottom of each cell is provided with an opening. Further, the base comprises a supporting structure at the lower part of the main body. The main body is provided with supporting means for holding an irrigation mat.
In accordance with the solution of the present invention, an efficient and stable/rigid container that stands alone is achieved. One or more containers can be handled simultaneously in a secure way at the same time, without necessitating a supporting retainer while preparing the containers with seeds and soil, or when removing plants with roots and soil for transplanting. Thus, this easy handling also includes the situation where the containers are partly or completely opened. At the same time, the container efficiently allows for cultivation of a large number of plants in one separate container unit. The configuration of the container with cells divided in two rows, one on each side of a central partition wall, where each wall section is connected in a hinge, facilitates the removal of the plants when ready for transplanting or to be planted directly in the soil or a pot for further growth. Another advantage is that the container is adapted for a tray, preferably included in a greenhouse arrangement, in which the container, the tray and the greenhouse facilitates for excellent irrigation and ventilation condition of the plants and roots.
For facilitating more efficient and superior watering conditions, the irrigation mat is suitably arranged at the base of the main body, preferably with one or both ends ending on the outside of the container. Preferably, one or more engaging arms can be arranged to at least one long side of the central wall to hold the irrigation mat in position at a lower portion of the main body towards the base. Each of the end walls may have an aperture through which the irrigation mat runs. By the combination of the container and the irrigation mat arranged outwardly on one or both end side walls of the container, an irrigation system can be provided that fulfils the necessary conditions for the required degree of watering.
According to an embodiment, the wall sections can be tapering, preferably continuously, towards the base. The tapering promotes the dewatering in the cells and favours the growth of the roots towards the hole in the bottom. The first wall section and the second wall section are suitably hingeably connected to the main body by hinge means. The wall sections forming the cells are preferably corrugated, on the inside surfaces, which makes it easier for straight propagation of the roots and avoids entangling.
According to an embodiment, the first wall section and the second wall section can be hingeably connected to the main body by hinge means. The hinge means suitably comprises a pin on each side of the lower part of the first wall section and the second wall section. The hinge means may further comprise through openings at the adjacent sides of the end walls for engagement of each of the pins in mating openings. The through openings at the adjacent sides of the end walls can have an oblong shape, which openings may have a longer diameter in the vertical direction than in the horizontal direction.
Further, the container can be provided with locking members for secure engagement with the main body in closed condition. The locking members suitably comprises a male-female connection between the central wall and each of the first wall section and the second wall section.
According to additional embodiments, the present invention relates to a tray for plants. The tray comprises long sides, short sides, and a bottom. The upper side of the tray being open. The tray is designed for receive and carry one or more containers to the invention and as described above. The tray can further be provided with: brackets arranged adjacent the bottom, intended for support of the supporting structure of the containers at a distance from the bottom surface.
Additionally, the present invention relates to a greenhouse for propagating growth of seedlings. The greenhouse comprises the tray and one or more containers according to the invention and as described above. Further, the greenhouse comprises a transparent cover that is arranged on top of the tray.
Further, the present invention relates to a method for propagating growth of seedlings. The method comprises the following steps: filling soil and placing seeds in cells in one or more containers according to the invention as mentioned above; providing the containers with an irrigation mat; placing the container or the containers in the tray according to the invention as mentioned above on brackets such that the irrigation mat or mats are positioned adjacent and towards the bottom surface of the tray; adding water into the tray; and arranging a transparent cover on top of the tray.
Other objectives, embodiments and advantages of the present invention are described in closer detail in the description and in the subsequent patent claims.
The invention will hereinafter be described with reference to embodiments of the present invention and the accompanying drawings, in which
Preferably, the openings 17, suitably oblong openings, in the end walls 11 have a longer diameter in the vertical direction V than in the horizontal direction H (see
According to the embodiment described and shown with reference to inter alia
Each cell 14, 14′ adjacent the base 4 is preferably provided with a bottom hole 20. Each cell may also be provided with ventilation holes 21, provided in portions of the wall sections 8, 10 that defines each cell. The ventilation holes 21 can be provided in order to let in air to the soil in each cell, and also in order to let out roots and promote the growth of roots. Additionally, the wall sections 8, 10, and suitably also the transverse wall segments 12, 12′, are preferably corrugated 36, at least on the inside surfaces 37 of the cells. The corrugations 36 are made in a similar way as described in the patent document U.S. Pat. No. 4,998,378. The corrugation slots 36 on the inside surface 37 of the cells make it easier for the roots to grow in a direction straight towards the bottom of the cells and also decrease the risk for root tangling.
The base 4 of the container comprises a support structure 24 at the lower part of the main body 3. The support structure 24 can be a flat sheet having a flat bottom surface and an extension corresponding roughly to the total upper area of the cells 14, 14′ at the top of the container. The flat sheet of the supporting structure 24 provides a stable support of the container on a surface when the container 2 is handled outside the tray of a greenhouse as described further below. Preferably, the support structure, such as the suitable flat sheet, can be provided with feets on the rear side facing the ground.
According to a preferred embodiment, the wall sections 8, 10 are tapering, preferably continuously, towards the base 4, which promotes the dewatering in the cells and favours the growth of the roots towards the hole 20 in the bottom. With respect to the tapering of the wall sections, the wall sections can be provided as a continuously curve surface from the top 18 of the container to the base 4.
Suitably, the irrigation mat 30 is made longer than the longitudinal length L of the container, preferably at least about 50 mm longer than the container length L, such that a free end 30′ at least extends out from the container at least on one of the short sides from the aperture 28 when the irrigation mat 30 is fully inserted in the container. When placed in the correct position in the container and through the aperture(s) 28, the irrigation mat 30 is able to provide sufficient water through capillary force to the soil volume in all cells 14, 14′, even if the irrigation mat 30 is only arranged on one side of the central wall 6 as illustrated in
The supporting structure 24 may have a recess P on one or both short sides of the container, preferably provided in the supporting structure 24, for position of the irrigation mat on the outside of the container. Further, each end wall 11 is preferably provided with one or more protruding pin(s) T which serves as suspension attachments for the irrigation mat, when not in use for absorbing water from the bottom of the tray, and/or distance elements, in order to keep each container in its correct position towards each wall when placed in the tray towards each wall, further explained below.
Further, the tray 40 is provided with ventilation holes 42, at least at the short sides 45 and/or at the long sides 44, 44′. Suitably, the ventilation holes 42 are arranged closer to the upper edge of the tray than to the bottom. In the tray there are brackets 48 close to the bottom 50 of the tray 40 for support of the container at a distance from the bottom 50. One or more protruding pin(s) T can be arranged on each end wall 11 of the containers 2 which pins serves as distance elements, in order to keep each container in its correct position towards each long side 44, 44′ when placed in the tray. Recesses are formed between the brackets 48, in order to create gaps 49 between the support structure 4 of each container and the brackets 48 at the bottom of the tray. In the gaps 49 the irrigation mat 30 from each container can extend down into the bottom surface 50 of the tray. A space 53 for holding water is created between the bottom surface 50 of the tray and the support structure 4 of each container. However, in the broadest sense of the scope of the invention, other means (not shown) than the mentioned brackets 48, can be provided in order to arrange the container in the intended way for fixing the distances between the support structure 4 of the container and the tray, which other means are evident for the person skilled in the art. The gaps 49 makes access to the space 53 (see
When using the container 2, the tray 40 and the greenhouse 60 for propagating growth of seedlings S, following steps (see
Number | Date | Country | Kind |
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13168041.5 | May 2013 | EP | regional |