NL2027623B1 - System and method for irrigation of plant elements inside growth boxes - Google Patents
System and method for irrigation of plant elements inside growth boxes Download PDFInfo
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- NL2027623B1 NL2027623B1 NL2027623A NL2027623A NL2027623B1 NL 2027623 B1 NL2027623 B1 NL 2027623B1 NL 2027623 A NL2027623 A NL 2027623A NL 2027623 A NL2027623 A NL 2027623A NL 2027623 B1 NL2027623 B1 NL 2027623B1
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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
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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
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/02—Receptacles, e.g. flower-pots or boxes; Glasses for cultivating flowers
- A01G9/022—Pots for vertical horticulture
- A01G9/025—Containers and elements for greening walls
Abstract
The invention provides a system comprising (i) an irrigation system, (ii) a growth box; and (iii) 5 a support structure wherein: (i) the irrigation system comprises a first array of nozzle elements and piping functionally coupled to the nozzle elements; each nozzle element comprises a nozzle and a nozzle opening; (ii) the growth box comprises a first side comprising a second array of nozzle holes; wherein the growth box further comprises a second side comprising one or more plant holes; wherein the growth box defines a growth box space; and (iii) the first side of the 10 growth box is configured directed to the irrigation system with the nozzle openings configured fluidically coupled to the growth box and the second side is configured directed away from the irrigation system; wherein the growth box is configured detachable from the support structure. 15 Fig. 2A
Description
P1600195NL01 System and method for irrigation of plant elements inside growth boxes
FIELD OF THE INVENTION The invention relates to a system, e.g. for growing of plants and/or providing water to plants. The invention further relates to a method for growing plants and/or for providing water to elements. In yet a further aspect, the invention relates to a growth box and to a kit of parts.
BACKGROUND OF THE INVENTION Systems for irrigation in horticulture are known in the art. US9788495, for instance, describes a grow plant enclosure to maximize plant density for a given growing area has a perimeter frame, a first pane, and a second pane. The first pane is adjacently connected to the perimeter frame, while the second pane 1s removably attached to the perimeter frame opposite the first pane to form a hollow enclosure. A plurality of plug holder openings traverses through the first pane, and optionally the second pane, being designed to receive a plurality of plant holders for growing various plant types. A plurality of supply tubes traverse into the perimeter frame through a plurality of supply tube openings and each have a plurality of spray nozzles to deliver nutrient solution to the root zone of the plants retained in the plurality of plant holders. Excess nutrient solution is released through a drain fixture positioned about the bottom of the perimeter frame.
SUMMARY OF THE INVENTION Vertical farming is often presented as the technology that is going to enable us to feed a world population of 10 billion people; a number which we will reach by the end of 2050. However, looking at all the vertical farming efforts around the world, almost all of them seem to only grow crops like leafy greens. While those leafy greens can be grown with a great reduction in needed water, nutrients and without any pesticides, a diet of only leafy greens is a diet very few cultures in the world aim for.
Further, present horticulture systems may not be easily scalable. Also automation may sometimes be suboptimal. Hence, there appears to be a desire to provide horticulture systems that are easily manageable and/or easily scalable. Especially in the case of vertical farming, there seems to be some desire for improvement of the water management. Therefore, it is an aspect of the invention to provide an alternative system for irrigation in horticulture, which preferably further at least partly obviates one or more of above-described drawbacks. The present invention may have as object to overcome or ameliorate at least one of the disadvantages of the prior art, or to provide a useful alternative.
In an aspect the invention provides a system, such as for irrigation.
Especially, the system may comprise (1) an irrigation system, (ii) a growth box, and (111) a support structure.
In embodiments, the irrigation system may comprise a first array of nozzle elements.
The irrigation system may further comprise piping functionally coupled to the nozzle elements.
Especially, each nozzle element may comprise a nozzle and a nozzle opening.
In embodiments, the growth box comprises a first side comprising a second array of nozzle holes.
Especially, in embodiments the growth box further comprises a second side comprising one or more plant holes.
In embodiments, the box may comprise a plant side, wherein the plant side comprises one or more sides comprising one or more plant holes.
Especially, the plant side may comprise the second side.
The plant side will be discussed in more detail below.
Especially, the growth box defines a growth box space.
In embodiments, the first side of the growth box may be configured directed to the irrigation system.
Especially, (during operation of the system, or during at least part of the operation time of the system) the nozzle openings are configured fluidically coupled to the growth box.
Yet further, (during operation of the system, or during at least part of the operation time of the system) the second side may be configured directed away from the irrigation system.
Especially, the growth box may be configured detachable from the support structure.
In alternative embodiments, the growth box may be configured non-detachable from the support structure.
Whether or not the growth box may be configured detachable from the support structure, in specific embodiments the plant side may be configured detachable from the growth box.
Hence, in embodiments the invention provides a system comprising (i) an irrigation system, (ii) a growth box, and (iii) a support structure wherein: (a) the irrigation system comprises a first array of nozzle elements and piping functionally coupled to the nozzle elements; each nozzle element comprises a nozzle and a nozzle opening; (b) the growth box comprises a first side comprising a second array of nozzle holes; wherein the growth box further comprises a second side comprising one or more plant holes; wherein the growth box defines a growth box space; and (c) the first side of the growth box is configured directed to the irrigation system with the nozzle openings configured fluidically coupled to the growth box and the second side is configured directed away from the irrigation system; wherein the growth box is configured detachable from the support structure and/or wherein the plant side is configured detachable from the growth box.
In this way, it may be possible to grow plants, seedlings, etc., in a space efficient way, while also providing possibilities for automation and hence upscaling of the system.
The system may be used e.g. in homes, cafes, restaurants, hotels, elderly homes, hospitals, or other hospitality locations, for local production of plants, such as fruit and vegetables. The system may also be used in large horticulture sites. The system may be used either indoor or outdoor. Indoor locations may e.g. comprise, like afore-mentioned options. Outdoor locations may e.g. comprise garden centers or even open fields (optionally with a cover to protect the system from harsh weather conditions). The system may be used horizontally or vertically. Further, the growth boxes also allow a larger range of plant types that can be grown than with state of the art (vertical) horticulture systems.
During operation, the irrigation system may be configured to provide fluid to the system, especially to plant elements in the system. Herein, the term “plant element” especially refers to one or more of a seed, a seedling, and a plant. Hence, the term “plant element” may refer to a plant in one of its stages from seed to plant. Further, the term “fluid” may especially refer to an aqueous fluid, such as water. The fluid may especially be provided to the plants as spray of droplets and/or as a fog of relatively small droplets (see also below).
For providing the aqueous fluid to, an irrigation system may be applied. The irrigation system may be functionally coupled to a source of fluid, like a reservoir with liquid, like a tank, or a liquid service pipe (see further also below).
The irrigation system may in embodiments comprise nozzle elements and piping functionally coupled to the nozzle elements. During operation, the piping may also be functionally coupled to the source of fluid, especially a source of water. Especially, the nozzle elements may be configured in a first array. During operation, the first array may be configured vertically.
Alternatively, during operation, the first array may be configured horizontally.
The first array (of nozzle elements) may comprise one or more, especially a plurality of p*q arrays. Each p*q array may be configured to address a single growth box (see also below). Hence, each p*q array may be functionally coupled to a respective growth box. In embodiments, both p and q are a number of nozzle elements in a respective line. In embodiments, both p and q are 1. In specific embodiments, however, at least one of p and q are equal to or larger than 2. Especially, p may be selected from the range of 1-20, such as from 2-10. Additionally or alternatively, q may be selected from the range of 1-20, such as from 2-10. The number of nozzle elements per growth box may also depend on one or more of the size of the growth box, the distance between nozzle elements (which may also depend on the type of nozzle and/or the pressure used, which is discussed below), the number of plant holes and the distance between the nozzle holes and plant holes. In specific embodiments, the distance between two adjacent nozzle openings may be in the range of 3-50 cm, especially in the range of 5-40 cm, more especially in the range of 7-30 cm. The nozzle elements may e.g. be configured in cubic array or an hexagonal array. The nozzle elements may be configured in a plurality of cubic arrays or a plurality of hexagonal arrays. Each nozzle element may comprise a nozzle and a nozzle opening. The nozzle may especially be configured to control the direction and/or characteristics of a fluid flow, especially as the fluid exits the irrigation system (via the nozzle opening). The nozzle opening essentially is the place where the fluid exits the nozzle. The nozzle element may be functionally coupled to the growth box in several ways. The nozzle elements may in embodiments have a length selected from the range of 0.5-10 cm, like about 0.5-4 cm. Especially, during an operational mode the nozzle openings may be configured fluidically coupled to the growth box. The phrase “with the nozzle openings configured fluidically coupled to the growth box” and similar phrases may especially indicate that one or more, especially a plurality, of the nozzle openings may be fluidically coupled to the growth box. Hence, a subset of a total number of the nozzle openings may be fluidically coupled to the growth box. This phrase may also refer to embodiments wherein each of a plurality of growth boxes is fluidically coupled to a respective subset of the total number of the nozzle openings. For instance, the nozzles may be configured in the growth box, at least during operation. In embodiments, the growth box may comprise a first side and a second side. Especially, the first side may comprise nozzle holes configured in a second array. In specific embodiments, the first array (of nozzle elements) and second array (of nozzle holes) may be alignable. Hence, the second array (of nozzle holes) may also be an p*q array. In embodiments, the growth box may comprise more plant holes than nozzle holes. Especially, the number of plant holes may be in the range of
0.5-10 times the number of nozzle holes, such as 1-5 times the number of nozzle holes. However, other number may also be possible. The plant holes may e.g. be configured in cubic array or an hexagonal array. In embodiments, the nozzle elements have outer dimensions d,. The nozzle holes may have dimensions dn larger than the nozzle element dimensions dn. Hence, in specific embodiments, especially during operational mode, the first side of the growth box may be configured directed to the irrigation system with the nozzle openings configured at least partly inside the growth box and the second side is configured directed away from the irrigation system.
Alternatively or additionally, the nozzles openings may be external of the growth box (during 5 operation), but a receptor element may be used to functionally couple the nozzle element to the growth box space.
For instance, the receptor element may include an opening in the growth box with a female element to receive at least part of the nozzle element.
The receptor element may comprise a rubber ring or a rubber element with an opening through which at least part of the nozzle element may penetrate, such that the nozzle opening is at least partly within the receptor element.
Such opening of the rubber element may be (partially) covered by a flexible section of the element that may cover the opening when no nozzle element is connected and may be moved away when a nozzle element is connected.
Therefore, in embodiments the system may comprise receptor elements, wherein the receptor elements are configured at least partially external from the growth box space, and wherein the receptor elements are configured to provide a fluidic coupling between the nozzle openings and the growth box space.
The fluidic coupling between the nozzle openings and the growth box space may be defined as a coupling wherein substantially all fluid from the nozzle opening(s) is transferred into the growth box space.
Such a fluidic coupling may be achieved by configuring the nozzle opening(s) inside the growth box and/or by using the receptor element as a connecting element.
During operation, the receptor element may essentially enclose the nozzle opening.
Note that the receptor elements may also be used for embodiments wherein the nozzle opening is within the growth box.
As indicated above, the first side of the growth box may in embodiments (during operation) be directed to the irrigation system and the second side may be configured directed away from the irrigation system.
The second side may comprise one or more plant holes.
These holes may be used to support a plant element, like a plant with some leaves and roots.
However, the holes may also be used to support a plant element support, such as a permeable bag or a sponge-like structure such as a biodegradable growth plug containing a seed or like a plastic mold or an elongated holder to provide more support to the plant element.
The plant element support may comprise one or more of plastic, metal, and biodegradable materials.
Also, the plant element support may in specific embodiments comprise a combination of elements or materials, such as a plastic mold comprising a biodegradable growth plug.
Especially, the plant element support may be configured to one or more of clamp, click and hang into the plant hole.
Additionally or alternatively, the plant element support may be configured in a male/female connection with the plant hole.
In specific embodiments, the plant element support may be configured to remain into the plant hole during movements of the plant side. Especially, the plant element support may be configured to remain into the plant hole independently of the angle of inclination of the first side and/or the angle of inclination of the second side (see below). Therefore, the plant holes may be configured to (during operation) host or support (1) a plant element or (ii) a plant element support for a plant element including the plant element. The system may comprise a support structure. The support structure may be configured to support the growth boxes. As indicated above, the growth box may in embodiments be configured detachable from the support structure. In this way, the growth box may be removed from the system and replaced. In specific embodiments, one or more of the support structure and the growth box comprise guiding elements for facilitating attaching and detaching of the growth box and the support structure. Alternatively or additionally, the support structure may be configured to support the irrigation system, especially the piping. For instance, the piping may be functionally coupled, like mechanically coupled, to the support structure. Therefore, in specific embodiments the support structure may be configured to support the irrigation system and the growth box. It may also be possible to use the irrigation system as support structure. Hence, in specific embodiments the irrigation system may be configured as support structure for the growth box.
As indicated above, the system may in embodiments be functionally coupled to a source of fluid. The source of fluid may comprise a vessel comprising the fluid. Additionally or alternatively, the source of fluid may comprise a connection to a plumbing infrastructure. In embodiments, the system may be configured to provide pressurized fluid to the nozzle elements during operation, and wherein the nozzles are configured to provide a spray of fluid. The spray of fluid may comprise droplets of the fluid. Hence, in specific embodiments, the system may be functionally coupled to a source of fluid, wherein the system may be configured to provide pressurized fluid to the nozzle elements during operation, and wherein the nozzles may be configured to provide a spray of fluid.
The fluid may in embodiments comprise a liquid, wherein the fluid may be pressurized. Additionally or alternatively, the fluid may comprise a liquid and a gas, wherein the gas may be pressurized.
The system may in embodiments be used for one or more of fogponics, high pressure aeroponics and low pressure aeroponics. Fogponics and aeroponics are substantially the same methods wherein droplets are produced for irrigation in horticulture. The system of the invention may be suitable for both fogponics and aeroponics. The differences between fogponics, high pressure aeroponics and low pressure aeroponics are in the pressure in the system and the type of nozzle elements used, this may result in different droplet sizes. In embodiments, the spray of fluid may comprise droplets having droplet sizes of 1-100 um in diameter, such as 5-80 um in diameter, especially 10-60 um in diameter, more especially 20-50 um in diameter. Additionally or alternatively, the spray of fluid may comprise droplets having droplet sizes of 1-10 um in diameter, such as 2-8 um in diameter, especially 3-5 um in diameter. Additionally or alternatively, the spray of fluid may comprise droplets having droplet sizes of larger than 50 pm in diameter, such as larger than 60 um in diameter, especially larger than 80 um in diameter, more especially larger than 100 pm in diameter. Hence, in specific embodiments, the fluid is a liquid and the spray of fluid comprises droplets having droplet sizes of 10-60 pm in diameter. The droplet sizes may refer to volume average droplet sizes. Additionally or alternatively, part of the droplet population may fall within the indicated ranges, such as at least 50%, like 60%, especially 70% of the droplets. Droplet size may be measured by commercial available techniques such as laser diffraction, wherein the intensity of scattered light is measured and analyzed as a laser beam passes through a spray of droplets.
Hence, in embodiments high pressure aeroponics (HPA) may be applied. HPA may typically use water pressures in combination with a certain size range misting nozzle orifice to produce 10-60 um diameter droplets. However, the invention is not limited only to this droplet size range. The design may also be compatible with ranges below and above this droplet size. Droplets below ~10 um diameters are typically referred to as a fog. In the (indoor) farming industry using this fog as an irrigation method is referred to as fogponics. And in fogponics the droplet diameters may be about 3-5um. Droplet diameters above about 60 um can be produced using lower water pressures. Droplet diameters above 60 um are also used in the (indoor) farming industry. This irrigation method is called low pressure aeroponics (LPA). Both LPA and fogponics may be used herein.
During operation, the fluid is introduced into the growth box. This can e.g. be done permanently, or intermittently, or on the basis of a sensor. The supply of fluid can also be based on e.g. a time scheme. By introduction of the fluid in the growth box, the fluid may reach the plant element. In this way, the plant element can grow and/or create fruits, etc.
The growth box may especially have as function to support the plant elements, and to host at least part of the plant elements in such a way, that the fluid introduced in the growth box via the nozzle openings of the nozzle elements, can reach the plant elements.
Hence, a first side or part of the growth box may be used to functionally couple to the irrigation system and another (second) side or part of the growth box may be used to support the plant elements (directly or indirectly). Especially, at least part of the growth box space is between the first side and the second side.
The growth box may be defined by one or more walls.
The one or more walls may comprise the nozzle holes and the plant holes.
Further, in embodiments there may be one or more holes to collect excess liquid in the growth box.
Hence, the growth box may be essentially closed, e.g. except for the nozzle holes and the plant holes and one or more drains; further, there may be some (small) gaps between walls.
Especially, the growth box may be configured such that essentially all liquid escaping from the nozzle opening stays within the growth box and cannot immediately escape therefrom, except via a possible drain.
The growth box may be configured such, that it is possible that a layer of water collects at a bottom of the growth box.
The growth box may in embodiments have shapes selected from e.g. a cube, a cuboid, a prism, a cylindrical shape, etc.
In embodiments, the growth box may also have other shapes.
In these examples, the sides of the growth box may be planar or curved.
Combinations of planar sides and curved sides may also be possible.
In specific embodiments, the first side is planar.
In this way, the first side may be easily aligned with the first array of nozzle elements of the irrigation system.
During operation, the first side may in embodiments be vertical.
In embodiments, the second side may be inclined relative to the first side.
In this way, the one or more plant holes may not be directly above one another, which may provide more space for each plant element.
The angle of inclination (smallest angle between first side and second side) may e.g. be selected from the range of 0-90°, like larger than 0° up to about 90°, such as up to about 45°. In embodiments, the growth box may be defined by a length L, a width W, and a height H.
Especially, W may be defined as the (largest) distance between the first side and the second side.
In embodiments, L may be in the range of at least 30 cm, like at least 50 cm, such as at least 80 cm.
In embodiments, L may be at maximum 250 cm, like at maximum 200 cm, such as at maximum 180 cm.
In embodiments, L may be in the range of 30-200 cm, like 50-200 cm, especially in the range of 50-180 cm.
In embodiments, W may be in the range of at least 10 cm, like at least 20 em, such as at least 25 cm. In embodiments, W may be at maximum 100 cm, like at maximum 75 cm, such as at maximum 50 em. In embodiments, W may be in the range of 10-100 cm, like 20-75 cm, especially in the range of 20-50 cm.
In embodiments, H may be in the range of at least 25 cm, like at least 40 cm, such as at least 60 cm. In embodiments, H may be at maximum 150 cm, like at maximum 120 cm, such as at maximum 100 cm. In embodiments, H may be in the range of 25-150 cm, like 40-150 cm, especially in the range of 40-120 cm.
Each growth box may comprise at least two plant holes, more especially at least 4 plant holes, even more especially at least 8 plant holes. All plant holes may have the same dimensions, though this is not necessarily the case. Hence, in embodiments the second side comprises at least 2, even more especially at least 4 plant holes. In specific embodiments, each growth box may comprise more than 10 plant holes, such as more than 20 plant holes, especially more than 30 plant holes. In embodiments, the plant holes may be configured in a plant hole array. Additionally or alternatively, the plant holes may not be aligned vertically but may be shifted horizontally (such as in a hexagonal array). In this way, the plant elements may have more space to grow, either inside the growth box (e.g. their roots), or outside the growth box (e.g. their leaves) or both.
As described above, the growth box may in embodiments comprise a plant side, wherein the plant side comprises one or more sides comprising the one or more plant holes. Especially, the plant side may comprise one or more of the second side and the optional third side. In specific embodiments, the growth box may comprise the plant side and a growth box part. The growth box part may comprise the first side. The growth box may thus in embodiments essentially be an assembly of the growth box part and the plant side. Hence, the growth box part may in embodiments at least comprise the first side. In specific embodiments, the plant side may be configured detachable from the growth box. Essentially, the plant side may hence be configured detachable from the growth box part. This may provide access to the growth space for cleaning the growth box and/or harvesting plant elements (even remote from the growth box). In embodiments, the plant side may comprise one or more of metal, plastic and fabric. However, other materials may also be used. Hence, in specific embodiments, the growth box comprises (i) a plant side wherein the plant side comprises one or more sides comprising the one or more plant holes, (i1) and a growth box part comprising one or more other sides comprising the first side, wherein the plant side is configured detachable from one or more other sides of the growth box.
Hence, the plant side and one or more other sides of the growth box may define the growth box, whereby the plant side may be configured detachable of the remainder (i.e. especially the growth box part) of the growth box. The plant side may comprise a single wall (e.g. second side) or a plurality of walls (like the second side and the third side) or one or more curved walls. The plant side may comprise an attaching element and the remainder of the growth box (or the support structure) may comprise a receiving element, configured to allow an attached configuration, thereby providing the growth box, and a detached configuration of the plant side being detached from the remainder of the growth box. The remainder of the growth box may thus also be configured detachable from the support structure.
In embodiments, the growth box may further comprise a third side, wherein the third side is inclined relative to the first side and also comprises one or more plant holes. This configuration may be especially relevant for growing tubers (e.g. potatoes) in the system. The second side may in embodiments comprise the top of the growth box. Especially, in embodiments the third side may bridge at least part of a distance between the first side and the second side. In specific embodiments, the third side may be smaller than the second side. More especially, the height of the third side may be smaller than the height of the second side. Hence, in specific embodiments, the growth box further comprises a third side, wherein the third side is inclined relative to the first side and also comprises one or more plant holes; wherein the third side bridges at least part of a distance between the first side and the second side, and wherein the third side is smaller than the second side. The third side may have an angle of inclination (smallest angle between first side and third side) relative to the first side selected from the range of equal to or larger than about 30°, such as equal to or larger than about 60° up to about 90°. When both the third side and the second side are inclined, the angle of inclination of the former may be larger than of the latter.
In embodiments, the second side comprises at least 2, even more especially at least 4 plant holes, and the third side comprises at least 2, even more especially at least 4 plant holes. Especially, the second side may comprise more plant holes than the third side.
In yet further specific embodiments the second side is curved, such as 1D curved, whereby different angle of inclination may be obtained. Alternatively or additionally, in embodiments the second side has a terrace structure or a kind of roof tile structure, with a plurality of each terrace elements or roof tile arrays comprising plant holes. Hence, in embodiments the second side may be a single continuous (curved) side (or wall). Alternatively, in embodiments the second side may be layered or staggered.
In embodiments, the growth boxes may be configured in a third array, wherein the third array is an n*m array, wherein n is the number of growth boxes in a first direction (e.g. horizontal line (row)) and m is the number of growth boxes in a second direction (e.g. vertical line (column)). The first direction and second direction may in embodiment be perpendicular to each other. In specific embodiments, at least one of n and m are equal to or larger than 2. Even more especially, at least one of n and m are equal to or larger than 4. Yet, in further specific embodiments n>2 and m>2, especially wherein m>3. Hence, in specific embodiments the growth boxes are configured in a third array, wherein the third array is a vertical n*m array, and m>2. However, in other specific embodiments the growth boxes are configured in a third array, wherein the third array is a horizontal n*m array, and n>2. Therefore, in specific embodiments in operation the third array is a vertical array or in operation the third array is a horizontal array.
As indicated above, each growth box may comprise a p*q (second) array of nozzle holes. In embodiments the growth boxes may be configured in an n*m (third) array, which may result in an overall array of (n*p)*(m*q) array of nozzle holes. As the nozzle holes may especially be alignable with the nozzle elements, also the nozzle elements may be configured in an overall array of (n*p)*(m*q) array of nozzle elements.
Via the irrigation system, not only an aqueous fluid may be provided to the plant elements, but it may also be possible to provide nutrients to the plant elements. Hence, in embodiments during at least part of the time that the fluid is provided to the growth boxes, the fluid may comprise one or more nutrients. Here, the term “nutrients” especially refers to additives that can be used by the plant elements, and which are in general not available in such amounts as used here in potable water. Hence, the nutrients are especially added nutrients, added relative to a source of fresh water. The type of nutrients and/or the amount of nutrients and/or the amount of the nutrients over time may be controlled. For instance, they may depend on the growth stage and/or the type of plant (element). Hence, in embodiments the system may in embodiments comprise a nutrient controlling device for controlling the concentration of nutrients in the fluid. In this way, nutrients may be provided to the plant elements via the irrigation system. The nutrients may comprise one or more of Nitrogen (N), Phosphorous (P), Potassium (K), Calcium (Ca), Sulfur (S), Magnesium (Mg), Iron (Fe), Boron (B), Manganese (Mn), Chlorine (Cl), Zinc (Zn), Copper (Cu), Molybdenum (Mo), Nickel (Ni), gibberellins, yeast extract, humic substances, and algae extract. In embodiments, the fluid may also comprise other nutrients.
The fluid provided to the growth box may not fully be consumed by the plant elements.
Hence, some residual fluid may remain in the box, would there be no drain.
In embodiments, the box may comprise a drain, though the drain may be configured such that a level or fluid may remain in the growth box.
The drain may be functionally coupled to a fluid exhaust.
The fluid that is superfluous may contain nutrients and may be reused.
Hence, in specific embodiments the system may further comprise a liquid treatment device and a liquid collection system.
Especially, the growth box may be fluidically coupled to the liquid collection system.
In this way, any excess of liquid in the growth box may be collected.
The liquid collection system may especially be fluidically coupled with the liquid treatment device.
The liquid treatment device may in embodiments be configured to treat liquid collected from the growth box via the liquid collection system.
Especially, the liquid treatment device may in embodiments comprise a disinfection device.
In specific embodiments, the disinfection device may comprise a UV disinfection device.
Alternatively or additionally, the liquid treatment device may comprise a filtration device.
Hence, in specific embodiments, the system further comprises a liquid treatment device and a liquid collection system; wherein the growth box is fluidically coupled to the liquid collection system, and wherein the liquid collection system is fluidically coupled with the liquid treatment device; wherein the liquid treatment device is configured to treat liquid collected from the growth box via the liquid collection system; wherein the liquid treatment device comprises a disinfection device.
In this way, the collected liquid may be suitable for recycling.
Hence, in specific embodiments, the system is configured to recycle the liquid.
In embodiments, the system may further comprise one or more of lighting, ventilation, pH control, and sensors.
The lighting may be configured external of the growth boxes and may be configured to irradiate at least part or the plant elements.
The ventilation may also be configured external of the growth boxes and may be used to keep a constant or dedicated temperature.
The pH control may be configured to control the pH of the (aqueous) fluid.
The sensors may be configured to sense one or more of growth, pH, temperature, air flow, etc.
Yet further, the system may further comprise a control system, configured to control irrigation of the plant elements as function of one or more of a user input signal, a sensor signal of a sensor, and a time scheme.
Hence, in yet a further aspect the invention also provides a horticulture system comprising the system as defined herein and a control system, wherein the control system is configured to control one or more parameters in relation to the system and/or the plant elements that can be available in the system during use of the system, especially wherein the control system is configured to control irrigation of the plant elements hosted by the growth box(es) by the irrigation system. In yet a further aspect, the invention is directed to a method for operating the system as defined herein. Especially, the method may in embodiments comprise one or more of the plant holes host or support (1) a plant element or (ii) a plant element support for a plant element including the plant element. Especially, the plant element may be selected from the group consisting of a seed, a seedling, and a plant. In embodiments, the method may comprise providing via the irrigation system fluid to the one or more plant elements. Hence, in a further aspect, the invention is directed to a method for operating the system as defined herein, wherein: (a) one or more of the plant holes host or support (i) a plant element or (ii) a plant element support for a plant element including the plant element; wherein the plant element is selected from the group consisting of a seed, a seedling, and a plant; and (b) providing via the irrigation system fluid to the one or more plant elements.
Plant holes that do not host or support (i) a plant element or (ii) a plant element support for a plant element including the plant element may be closed, e.g. with a lid or other closure element. Alternatively, plant holes that do not host or support (i) a plant element or (ti) a plant element support for a plant element including the plant element may be open.
In specific embodiments, the method further comprises providing a spray of liquid in the direction of the one or more plant elements. For instance, in embodiments the spray of fluid comprises droplets having droplet sizes of 10-60 um in diameter. However, other sizes may also be possible (see above).
Further, as indicated above, in embodiments, the liquid comprises water and one or more nutrients, wherein the one or more nutrients are selected from the group comprising Nitrogen (N), Phosphorous (P), Potassium (K), Calcium (Ca), Sulfur (S), Magnesium (Mg), Iron (Fe), Boron (B), Manganese (Mn), Chlorine (Cl), Zinc (Zn), Copper (Cu), Molybdenum (Mo), Nickel (Ni), gibberellins, yeast extract, humic substances, and algae extract. In specific embodiments, the method may comprise growing one or more plant elements selected from the group consisting of tomatoes, cucumbers, peppers, pumpkins, squashes, leafy greens, herbs, berries, legumes, root vegetables, tubers, grains, corn, and rice. Additionally or alternatively, the method may comprise growing one or more non-food plant elements, such as cannabis or aesthetic plants like roses, tulips.
Further, in embodiments the method may comprise detaching the growth box from the support structure, guiding the growth box to a further operation stage, returning the growth box to the support structure and functionally coupling the growth box to the irrigation system while configuring the nozzle openings at least partly inside the growth box; wherein the further operation stage comprises one or more of a cleaning stage, a harvesting stage, a planting stage, and a pruning stage.
Additionally or alternatively, the method may in embodiments comprise detaching the plant side from the growth box part, guiding the plant side to a further operation stage; returning the plant side to the growth box part; and functionally coupling the growth box to the irrigation system (while configuring the nozzle openings fluidically coupled to the growth box); wherein the further operation stage comprises one or more of a cleaning stage, a harvesting stage, a planting stage, and a pruning stage.
Especially in embodiments wherein only the plant side is detached from the growth box part, the nozzle openings may remain fluidically coupled to the growth box.
The harvesting stage may comprise obtaining any of the cultured plant elements, such as leaves, fruits, roots, tubers etc.
These plant elements may be located outside the growth box (like fruits) or inside the growth box (like tubers). The cleaning stage may comprise removing remaining (parts of) plant elements and/or removing any excess of (dried) fluid from the growth box.
Additionally or alternatively, the cleaning stage may comprise disinfecting the (inside of the) growth box.
The planting stage may comprise placing plant elements in the plant holes (with or without a plant element support). Especially, the planting stage may follow on the cleaning stage.
The pruning stage may comprise selective removal of parts of the plant elements.
Especially, the pruning may aim for further growth of the remaining plant elements.
Hence, in specific embodiments the method comprises: (1) (a) detaching the growth box from the support structure or (b) detaching the plant side from the growth box part, (11) guiding (a) the growth box including the plant side or (b) the plant side to a further operation stage; (111) returning (a) the growth box to the support structure or (b) the plant side to the growth box part; and (iv) functionally coupling the growth box to the irrigation system while configuring the nozzle openings fluidically coupled to the growth box; wherein the further operation stage comprises one or more of a cleaning stage, a harvesting stage, a planting stage, and a pruning stage.
In yet a further aspect, the invention also provides a growth box as such, of which embodiments are described above.
In specific embodiments, the growth box may comprise a first side, a second side and a third side, wherein the first side comprises a plurality of nozzle holes, wherein one or more of the second side and the third side comprise an inclined side relative to the first side and wherein one or more of the second side and the third side comprise plant holes configured to host or support (1) a plant element or (ii) a plant element support for a plant element including the plant element. As indicated above, the plant element is selected from the group consisting of a seed, a seedling, and a plant. In specific embodiments, the growth box comprises (i) a plant side wherein the plant side comprises one or more sides comprising the one or more plant holes, (ii) and a growth box part comprising one or more other sides comprising the first side, wherein the plant side is configured detachable from one or more other sides of the growth box.
In yet a further aspect, the invention provides a kit of parts comprising nozzle elements, piping, and a growth box. As indicated above, the nozzle element may comprise a nozzle and a nozzle opening. The nozzle elements are connectable via the piping to a source of fluid to form an irrigation system. In specific embodiments, the nozzle elements may have outer dimensions da and are configured to produce a spray of fluid. Further, the growth box may be as defined above, and may in specific embodiments comprise a first side comprising a second array of nozzle holes alignable with a first array of nozzle elements, obtainable with the nozzle elements and piping. In specific embodiment, the nozzle holes may have dimensions da larger than the nozzle element dimensions dn. Further, the growth box may further comprise a second side comprising one or more plant holes. In specific embodiments, the growth box further comprises a third side, wherein the third side is inclined relative to the first side and also comprises one or more plant holes; wherein the third side bridges at least part of a distance between the first side and the second side, and wherein the third side 1s smaller than the second side (see also above). Hence, in specific embodiments, the invention provides a kit of parts comprising nozzle elements, piping, and a growth box, wherein: (a) the nozzle element comprises a nozzle and a nozzle opening, wherein the nozzle elements are connectable via the piping to a source of fluid to form an irrigation system; (b) the growth box comprises a first side comprising a second array of nozzle holes alignable a the first array of nozzle elements obtainable by the nozzle elements and the piping, wherein the growth box further comprises a second side comprising one or more plant holes; configured to host or support (i) a plant element or (ii) a plant element support for a plant element including the plant element. In yet a further aspect, the invention also provides an irrigation system comprising a first array of nozzle elements, wherein each nozzle element comprises a nozzle and a nozzle opening.
Especially, the first array allows a functional coupling with a plurality of growth boxes configured in n*m array as defined above.
BRIEF DESCRIPTION OF THE DRAWINGS Embodiments of the invention will now be described, by way of example only, with reference to the accompanying schematic drawings in which corresponding reference symbols indicate corresponding parts, and in which: Fig. 1 schematically depicts the system; Fig. 2 schematically depicts alternative embodiments of the system; Fig. 3 schematically depicts an array of growth boxes; and Fig. 4 schematically depicts a kit of parts of the system. The schematic drawings are not necessarily on scale.
DETAILED DESCRIPTION OF THE EMBODIMENTS Fig. 1 schematically depicts the system 1000 comprising (i) an irrigation system 100, (ii) a growth box 200, and (iii) a support structure 350. The top part of the figure comprises a side view and the bottom part of the figure comprises a cross-section of the system 1000. In the depicted embodiment, the irrigation system 100 comprises a first array 1 of nozzle elements 120 and piping 130 functionally coupled to the nozzle elements 120. Each nozzle element 120 comprises a nozzle 121 and a nozzle opening 122. In embodiments, the growth box 200 may comprise a first side 201 comprising a second array 2 of nozzle holes 220. The growth box 200 may in embodiments further comprise a second side 202 comprising one or more plant holes 230. Especially, in embodiments, the growth box 200 may define a growth box space 210. In embodiments, the first side 201 of the growth box 200 may (during operation) be configured directed to the irrigation system 100 with the nozzle openings 122 configured fluidically coupled to the growth box 200. The second side 202 of the growth box 200 may be configured directed away from the irrigation system 100. In specific embodiments, the growth box 200 may be configured detachable from the support structure 350. In the depicted embodiments, the nozzle elements 120 have outer dimensions da wherein the nozzle holes 220 have dimensions di larger than the nozzle element dimensions da. In embodiments, the nozzle openings 122 may be configured at least partly inside the growth box 200. In the depicted embodiment, the system 1000 is functionally coupled to a source of fluid 141. Especially, in embodiments the system 1000 may be configured to provide pressurized fluid 140 to the nozzle elements 120 during operation, and wherein the nozzles 121 are configured to provide a spray of fluid 142. Especially, the fluid may in embodiments be a liquid. In specific embodiments, the spray of fluid 142 may comprise droplets 144 having droplet sizes of 10-60 um in diameter. However, in embodiments, the fluid may comprise droplets having alternative droplet sizes. In the depicted embodiment, the support structure 350 is configured to support the irrigation system 100 and the growth box 200, wherein the irrigation system 100 may comprise the support structure 350. In embodiments, one or more of the support structure 350 and the growth box 200 may comprise guiding elements 1200. In the depicted embodiment, a guiding element 1200 is configured on the growth box 200.
During operation, one or more of the plant holes 230 may host or support (i) a plant element 300 or (ii) a plant element support 310 for a plant element 300 including the plant element 300. The plant element may in embodiments be selected from the group consisting of a seed, a seedling, and a plant. During operation, the system may in embodiments provide via the irrigation system 100 liquid to the one or more plant elements 300. In embodiments, the method for operating an irrigation system 100 may further comprise providing a spray of liquid 142 in the direction of the one or more plant elements 300. Especially, the method may in embodiments comprise growing one or more plant elements 300 selected from the group consisting of tomatoes, cucumbers, peppers, pumpkins, squashes, leafy greens, herbs, berries, legumes, root vegetables, tubers, grains, corn, and rice. Additionally or alternatively, the method may comprise growing one or more non-food plant elements, such as cannabis or aesthetic plants like roses, tulips. In specific embodiments, the method may comprise detaching the growth box 200 from the support structure 350, guiding the growth box 200 to a further operation stage, returning the growth box 200 to the support structure 350 and functionally coupling the growth box 200 to the irrigation system 100 while configuring the nozzle openings 122 fluidically coupled to the growth box 200. The further operation stage may in embodiments comprise one or more of a cleaning stage, a harvesting stage, a planting stage, and a pruning stage. Fig. 2A (I) schematically depicts a cross-section of further embodiments of the system 1000. In embodiments, the support structure 350 may be configured to support the irrigation system 100 and the growth box 200. In the depicted embodiment, the support structure 350 is separate from the irrigation system 100. In embodiments, the system may further comprise a nutrient controlling device 410 for controlling the concentration of nutrients 411 in the fluid 140. In embodiments, the system 1000 may further comprise a liquid treatment device 440 and a liquid collection system 450. Especially, the growth box 200 may be fluidically coupled to the liquid collection system 450. The liquid collection system 450 may in embodiments be fluidically coupled with the liquid treatment device 440. In specific embodiments, the liquid treatment device 440 may be configured to treat liquid 140 collected from the growth box 200 via the liquid collection system
450. In specific embodiments, the liquid treatment device 440 may comprise a disinfection device
441. Especially, the system 1000 may in embodiments be configured to recycle the liquid 140.
In embodiments, the growth box may comprise different shapes. In specific embodiments, the second side 202 may be inclined relative to the first side 201. The growth box 200 may in embodiments further comprise a third side 203, wherein the third side 203 may be inclined relative to the first side 201 and also comprises one or more plant holes 230. Especially, the third side 203 may bridge at least part of a distance between the first side 201 and the second side 202. In specific embodiments, the third side 203 may be smaller than the second side 202. Fig. 2A (I) also effectively depicts an embodiment of a growth box 200 comprising a first side 201, a second side 202 and a third side 203. Especially, the first side 201 comprises a plurality of nozzle holes 220. In embodiments, one or more of the second side 202 and the third side 203 comprise an inclined side relative to the first side 201. In embodiments, one or more of the second side 202 and the third side 203 comprise plant holes 230 configured to host or support (i) a plant element 300 or (11) a plant element support 3 10 for a plant element 300 including the plant element IS 300. Fig. 2A (II) schematically depicts that the plant side 240 may in embodiments be detachable from the other sides of the growth box 200. Especially, the plant side may comprise one or more of the sides comprising the one or more plant holes 230. In specific embodiments, the plant side 240 comprises one or more of the second side 202 and the optional third side 203. In embodiments, the growth box may comprise one or more of a first support 241 and a second support 242 for the plant side 240. The method may in embodiments comprise detaching the plant side 240 from the growth box part 211, guiding the plant side 240 to a further operation stage; returning the plant side 240 to the growth box part 211; and functionally coupling the growth box 200 to the irrigation system 100 while configuring the nozzle openings 122 fluidically coupled to the growth box 200; wherein the further operation stage comprises one or more of a cleaning stage, a harvesting stage, a planting stage, and a pruning stage. Fig. 2B schematically depicts an embodiment of the system 1000 wherein the growth box 200 comprises a curved plane comprising the plant holes 230. Further, here a horizontal configuration is schematically depicted. The depicted nozzle holes comprise a receptor element 123, wherein the receptor elements 123 are configured at least partially external from the growth box space
210. In embodiments, the receptor elements 123 are configured to provide a fluidic coupling between the nozzle openings 122 and the growth box space 210. Especially in a horizontal configuration, the receptor element may provide a watertight seal to prevent leakage.
Fig. 2C schematically depicts an embodiment of the growth box 200, with a kind of terrace structure.
Fig. 2D schematically depicts different embodiments of a functional coupling of the nozzle element to the growth box (of which only the first side 201 is schematically depicted). The nozzle elements may partly enter the growth box and thus penetrate the first side. Also a receptor element 123, such as a rubber ring, may be applied, which may also allow penetration, but way may also allow the option of functional coupling external of the growth box.
Fig. 3 schematically depicts an array of growth boxes. Here a vertical n*m array is depicted, wherein n=3 and m=2. Fig. 4 (I) schematically depicts a kit of parts comprising nozzle elements 120, piping 130, and a growth box 200. The nozzle element 120 comprises a nozzle 121 and a nozzle opening 122, wherein the nozzle elements 120 are connectable via the piping 130 to a source of fluid 141 to form an irrigation system 100. The growth box 200 comprises a first side 201 (depicted in (II)) comprising a second array 2 of nozzle holes 220 alignable with a first array 1 of nozzle elements 120 obtainable by the nozzle elements 120 and the piping 130. In embodiments, the growth box 200 further comprises a second side 202 comprising one or more plant holes 230. In this schematically depicted embodiment, the growth box 200 further comprises a third side 203, wherein the third side 203 is inclined relative to the first side 201 and also comprises one or more plant holes 230. The plant holes may be configured to host or support (1) a plant element 300 or (ii) a plant element support 310 for a plant element 300 including the plant element 300. In embodiments, the third side 203 bridges at least part of a distance between the first side 201 and the second side 202. In specific embodiments, the third side 203 is smaller than the second side
202. The growth box may comprise a plant side 240 and a growth box part 211. Especially, the plant side 240 may comprise one or more sides comprising the one or more plant holes 230. The growth box part 211 may comprise one or more other sides comprising the first side 201. In specific embodiments, the plant side 240 may be configured detachable from one or more other sides of the growth box 200. The term “plurality” refers to two or more. Furthermore, the terms “a plurality of” and “a number of” may be used interchangeably.
The terms “substantially” or “essentially” herein, and similar terms, will be understood by the person skilled in the art. The terms “substantially” or “essentially” may also include embodiments with “entirely”, “completely”, “all”, etc. Hence, in embodiments the adjective substantially or essentially may also be removed. Where applicable, the term “substantially” or the term “essentially” may also relate to 90% or higher, such as 95% or higher, especially 99% or higher, even more especially 99.5% or higher, including 100%. Moreover, the terms “about” and “approximately” may also relate to 90% or higher, such as 95% or higher, especially 99% or higher, even more especially 99.5% or higher, including 100%. For numerical values it is to be understood that the terms “substantially”, “essentially”, “about”, and “approximately” may also relate to the range of 90% - 110%, such as 95%-105%, especially 99%-101% of the values(s) it refers to. The term “comprise” also includes embodiments wherein the term “comprises” means “consists of”.
The term “and/or” especially relates to one or more of the items mentioned before and after “and/or”. For instance, a phrase “item 1 and/or item 2” and similar phrases may relate to one or more of item 1 and item 2. The term "comprising" may in an embodiment refer to "consisting of" but may in another embodiment also refer to "containing at least the defined species and optionally one or more other species”. Furthermore, the terms first, second, third and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances and that the embodiments of the invention described herein are capable of operation in other sequences than described or illustrated herein. The devices, apparatus, or systems may herein amongst others be described during operation. As will be clear to the person skilled in the art, the invention is not limited to methods of operation, or devices, apparatus, or systems in operation. The term “further embodiment” and similar terms may refer to an embodiment comprising the features of the previously discussed embodiment, but may also refer to an alternative embodiment.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design many alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim.
Use of the verb "to comprise" and its conjugations does not exclude the presence of elements or steps other than those stated in a claim. Unless the context clearly requires otherwise, throughout the description and the claims, the words “comprise”, “comprising”, “include”, “including”, “contain”, “containing” and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is to say, in the sense of “including, but not limited to”. The article "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In a device claim, or an apparatus claim, or a system claim, enumerating several means, several of these means may be embodied by one and the same item of hardware. The mere fact that certain measures are recited in mutually different dependent claims does not indicate that a combination of these measures cannot be used to advantage.
The invention also provides a control system that may control the device, apparatus, or system, or that may execute the herein described method or process. Yet further, the invention also provides a computer program product, when running on a computer which is functionally coupled to or comprised by the device, apparatus, or system, controls one or more controllable elements of such device, apparatus, or system. The invention further applies to a device, apparatus, or system comprising one or more of the characterizing features described in the description and/or shown in the attached drawings. The invention further pertains to a method or process comprising one or more of the characterizing features described in the description and/or shown in the attached drawings. Moreover, if a method or an embodiment of the method is described being executed in a device, apparatus, or system, it will be understood that the device, apparatus, or system is suitable for or configured for (executing) the method or the embodiment of the method, respectively.
The various aspects discussed in this patent can be combined in order to provide additional advantages.
Further, the person skilled in the art will understand that embodiments can be combined, and that also more than two embodiments can be combined.
Furthermore, some of the features can form the basis for one or more divisional applications.
Claims (19)
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| NL2027623A NL2027623B1 (en) | 2021-02-23 | 2021-02-23 | System and method for irrigation of plant elements inside growth boxes |
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| NL2027623A NL2027623B1 (en) | 2021-02-23 | 2021-02-23 | System and method for irrigation of plant elements inside growth boxes |
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| US9788495B2 (en) | 2014-07-30 | 2017-10-17 | Indoor Farms Of America, Llc | Vertical aeroponic plant growing enclosure |
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| US10492387B1 (en) * | 2013-03-21 | 2019-12-03 | Dewey Davison | Aeroponic recycling system |
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| US4869019A (en) * | 1986-11-24 | 1989-09-26 | Ehrlich Karl F | Aeroponic apparatus |
| US10492387B1 (en) * | 2013-03-21 | 2019-12-03 | Dewey Davison | Aeroponic recycling system |
| US9788495B2 (en) | 2014-07-30 | 2017-10-17 | Indoor Farms Of America, Llc | Vertical aeroponic plant growing enclosure |
| US20180042191A1 (en) * | 2015-11-11 | 2018-02-15 | EZ-Clone Enterprises, Inc. | Aeroponics system with rack and tray |
| US10477786B1 (en) * | 2016-11-14 | 2019-11-19 | Eric John Wilson | Two-stage aeroponic growing system and method |
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