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WO2025177274A1 - Procédé de culture de semences de pomme de terre - Google Patents

Procédé de culture de semences de pomme de terre

Info

Publication number
WO2025177274A1
WO2025177274A1 PCT/IL2025/050171 IL2025050171W WO2025177274A1 WO 2025177274 A1 WO2025177274 A1 WO 2025177274A1 IL 2025050171 W IL2025050171 W IL 2025050171W WO 2025177274 A1 WO2025177274 A1 WO 2025177274A1
Authority
WO
WIPO (PCT)
Prior art keywords
irrigation
chamber
solution
potato
chambers
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/IL2025/050171
Other languages
English (en)
Inventor
Kamal Daas
Talal Daas
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.)
Cohn De Vries Stadler & Co
Vital Seeds Inc
Original Assignee
Cohn De Vries Stadler & Co
Vital Seeds Inc
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 Cohn De Vries Stadler & Co, Vital Seeds Inc filed Critical Cohn De Vries Stadler & Co
Publication of WO2025177274A1 publication Critical patent/WO2025177274A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • A01G22/00—Cultivation of specific crops or plants not otherwise provided for
    • A01G22/25—Root crops, e.g. potatoes, yams, beet or wasabi
    • 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

Definitions

  • the present disclosure concerns cultivation methods for growing potato plants from potato seeds.
  • Potato plants are traditionally grown in fields and each plant typically produces 4-10 potatoes, which develop on stolons extending underground.
  • potato tubers also customary referred to as “potato seeds” are introduced into the soil at a depth below the soil surface.
  • roots develop and a stem extends upward from the seeded mother-tuber, that eventually pierces the soil surface to produce the above-ground plant body (stems, leaves, flowers, etc.).
  • stolons develop underground and new tubers grow thereon, also underground.
  • the mother-tuber eventually decomposes and, after a cultivation period when the tubers reach sufficient size, these are harvested for use as ware- or industrial-potatoes.
  • a mist has an advantage in that it spreads relatively evenly in the chamber circumventing obstacles, even to regions that are behind (with the respect to spraying nozzle) an element in the chamber, e.g. behind another plant, whereby the irrigation solution would reach all plant elements in the chamber.
  • starter potato planllels “potato planllels”. “planllels” or the like may be used, interchangeably, to denote the small potato plants that are introduced into the top chamber at a start of a growth period.
  • growth period' may be used to denote the period from introducing potato plantlets into the top chamber, through cultivation of tubers and one or more harvests of tubers until the end of the cultivation period.
  • the term “nutrient” denotes chemical elements that may be added to the irrigation solution for delivery to the potato plant. It may include the standard NPK element that are used in fertilizers as well as other elements. As will be explained also below, there may be different nutrients in the irrigation solution delivered the top chamber and that delivered to the bottom chamber. Also, the introduction of the irrigation solution (that may also be referred to herein as "irrigation” may, for example, be continuous, or may be in short pulses separated by longer dry (i.e. non-irrigates) periods.
  • the irrigation schedule may include different irrigation schedules for different times of day; may be an irrigation schedule that depends on the season or the time of year; may be at a schedule that depends on temperature, humidity or other environmental factors; etc. Similarly, the irrigation solutions may depend on various factors including environmental-related, seasonal, growth-related, and others.
  • an irrigation solution with or without nutrients is applied, through spraying, to the top chamber and typically also to the bottom chamber.
  • the solutions applied to the two chambers may be different from one another.
  • the irrigation of the irrigation solution to the bottom chamber is typically aeroponic irrigation
  • the irrigation of the bottom chamber may also be hydroponic in nature.
  • the bottom chamber with the roots may be irrigated with a nutrient solution, e.g. comprising the typical NPK and other fertilizers that may be employed in tubers cultivation, for a period and then irrigated with a solution similar to that applied in the top chamber.
  • a nutrient solution e.g. comprising the typical NPK and other fertilizers that may be employed in tubers cultivation
  • one or both of the bottom or of the top chambers may be irrigated in pulses of irrigation separated by intermittent periods of non-irrigation.
  • One or both of the irrigation solutions may be circulated for reuse.
  • the bottom chamber and the top chamber have each a drainage for collecting the respective irrigating solutions from each of the chambers.
  • Any value given in this disclosure, other than if specifically understood otherwise from the context, should be understood as meaning a value that is about the indicated value, whether the term “about” is indicated before the value or not.
  • a value that is about the indicated value means a value that may be in a range of ⁇ 10% of the indicated value (namely a value that deviates from the indicated value by up to 20%). For example, a value of 100 pm denotes a value that may be equal or lower than 90 or equal or higher than 110 pm.
  • the irrigation solution introduced, such as by spraying, e.g. in the form of a mist, into the bottom chamber is cooled to thereby cool the roots in the bottom chamber.
  • the irrigation solution is cooled such that the temperature in which the solution is sprayed at the bottom chamber is between about 14 to 18 °C, typically about 16°C.
  • the irrigation solution may have to be cooled at source to a lower temperature since, even if the pipes through which the irrigation solution flows are thermally insulated, they may heat up before their introduction into the bottom chamber.
  • yield may mean one or more of (i) total number of harvested tubers, (ii) number of harvested tubers in a defined time period, (iii) number of harvested tubers that meet predefined criteria such as (but not only) minimum weight or size, (iv) total weight of harvested tubers, (v) total weight of harvested tubers in a defined time period.
  • potato plant matter which may be a plantlet obtained from tissue culture, a potato plant cutting, a potato tuber or minitubers, is grown, typically on a porous substrate, e.g. rock wool, to obtain a starter potato plant with a mother tuber and some roots. Where cuttings are used, this can occur with about 2 weeks from cutting and placing the cutting on the substrate.
  • the starter potato plant is then introduced into the top chamber over one of the first openings to the roots of the starter plants to extend into the bottom chamber.
  • said mother-tuber is fitted in a porous substrate such that the mother-tuber is at a bottom portion of the substrate, occasionally at the very bottom of the substrate and permit the roots to extend into the bottom chamber.
  • At least one of its sidewalls are kept open for a time to expose the plantlets to light and permitting each plantlet to develop a stem of sufficient length with leaves, and then extending each stem out of a second opening. Thereafter, the side walls are closed and are only opened occasionally (typically for a short while once every few days) for harvesting minitubers from the top chamber. Said time in which the side wall is kept open to permit an initial growth boost to the potato plants, may be between about 15 to about 30 days.
  • upper plant parts namely the stem and the leaves of the plant that extend out of the top chamber through the second openings, are permitted to grow upwards in a general upwards direction.
  • This is contrary to the general acceptable practice of trimming the vegetative parts of potato plants grown in an incubator or nursery, which is believed to improve the yield.
  • it was found that such extension which brings to a taller and generally upwards or upright directed vegetative parts, increases yield of the harvested tubers.
  • the vegetative parts are supported in a manner permitting their upward growth. This support may be by tying the stems to strings, cables, bands, etc., that may be tied directly or by means of rings, strings, bands, clips, etc.
  • a growth supporting installation e.g. in the form of one or more net or grid structures above the plants, typically several such structures that are parallel to one another at various heights above the chamber.
  • the support may also be a combination of these solutions.
  • the irrigation solution into one or both of the chambers is sprayed as a mist.
  • the droplet size may be below about 100 pm, 90 pm, 80 pm, 70 pm, 60 pm or even below about 50 pm, and typically in the range of about 10 pm to 25 pm. It was found in accordance with this disclosure that the use of such a small droplet size does not hamper the ability to provide fertilizers and other nutritional substance to the plants, particularly the roots and their absorption by the roots.
  • spraying of the irrigation solutions may be carried out in intermitted spraying bursts.
  • a system for cultivating potato plants for the purpose of harvesting tubers comprising one or more cultivation assemblies.
  • Each such assemblies comprises two light-sealable chambers (namely can be sealed from light to maintain darkness therein), each having a bottom, root chamber and a top crop chamber, separated by a dividing wall, the crop chamber being defined between said dividing wall and a top wall.
  • Formed in the dividing wall are a plurality of first openings and formed in the top wall are a plurality of second openings.
  • the system also comprises an irrigation arrangement configured for independently spraying of different irrigation solutions into the root chamber and the crop chamber.
  • the root chamber is configured for receiving roots of a potato plantlet that extend from the first chamber through the first openings into the second chamber.
  • the crop chamber is intended or configured to maintain a stem of the potato plant during growth thereof and permit its extension through the second opening, and permit growth therein of stolons and growth of tubers on the stolons.
  • the system has several embodiments with one or more of the following added features (a) to (f):
  • the same irrigation system can be used to irrigate both the root chamber and the crop chamber, directing the irrigation to either one of the chambers, making use of an appropriate valving arrangement for drawing the right irrigation composition at each time and directing the irrigation to either of the chambers or occasionally to both.
  • the irrigation arrangement comprising at least one first irrigation sub-system for irrigation of the root chambers and at least one second irrigation subsystem for irrigation of the crop chambers.
  • the system of embodiment (a) may be useful for carrying out the method of embodiment (1).
  • the first irrigation sub-system may comprise a first control utility for operating it in an irrigation cycle comprising pulses of irrigation separated by intermittent periods of non-irrigation.
  • the second irrigation subsystem may also comprise a second control utility, which may be the same or different than the first control utility, for operating it in an irrigation cycle comprising pulses of irrigation separated by intermittent periods of non-irrigation.
  • the pulses of irrigation controlled by the control utility may be in synch in the two chambers but may also be out of synch with one another.
  • the irrigation solutions may, typically, circulated for reuse, for which purpose the bottom chambers and the top chambers may have each a drainage for collecting the respective irrigating solutions from each of the chambers.
  • a cooling sub-system is employed for cooling the irrigated solution, particularly that intended for the bottom, root chamber.
  • the temperature may be controlled such that the temperature of the solution once reaching the root chamber is in the range of 14°C to 18°C, typically about 16°C.
  • the system of embodiment (b) may be useful for carrying out the method of embodiment (2).
  • the crop chambers are configured as pots, each with a base that defines the dividing wall and having one or more openings in it, the pot having a side wall that can be opened.
  • the pot is positioned on a rack with the root chamber being defend by a light sealed chamber below the rack.
  • Such embodiments may be referred to herein as the “pot embodiment” .
  • any one of embodiments 1 to 10 further comprising growing (e.g. on a porous growth substrate) potato plant matter (e.g. a potato plantlet from tissue culture, a potato minitubers, a potato plant cutting, etc.) to obtain a starter potato plant with a mother tuber, and introducing the starter potato plant to the top chamber over one of the first openings to permit the starter potato plants roots to extend into the bottom chamber.
  • potato plant matter e.g. a potato plantlet from tissue culture, a potato minitubers, a potato plant cutting, etc.
  • a method for cultivating potato plants for the purpose of harvesting tubers comprising: growing potato plants in a cultivation assembly that comprises: two light-sealed chambers, comprising a bottom, root chamber and a top crop chamber, separated by a dividing wall, the crop chamber being defined between said dividing wall and a top wall, a plurality of first openings formed in the dividing wall, and a plurality of second openings formed in the top wall; said growing comprising placing potato plantlets in the top chamber while permitting the roots to extend into the root chamber through the first openings, and a stem of the plant grown from the plantlet to extend through the second openings, and introducing irrigation an irrigation solution comprising one or more nutrients to the bottom chamber; periodically harvesting potato tubers from the top chamber; and comprising after said placing, (i) keeping at least one of the sidewalls of the top chamber open for a time to expose the plantlets to light and permit each plantlet to develop a stem of sufficient length with leaves, (ii) extending each stem out of a second opening, and (
  • a method for cultivating potato plants for the purpose of harvesting tubers comprising: growing potato plants in a cultivation assembly that comprises: two light-sealed chambers, comprising a bottom, root chamber and a top crop chamber, separated by a dividing wall, the crop chamber being defined between said dividing wall and a top wall, a plurality of first openings formed in the dividing wall, and a plurality of second openings formed in the top wall; said growing comprising placing potato plantlets in the top chamber while permitting the roots to extend into the root chamber through the first openings, and a stem of the plant grown from the plantlet to extend through the second openings to define upper plant parts, and introducing an irrigation solution comprising one or more nutrients to at least the bottom chamber; periodically harvesting potato tubers from the top chamber; and comprising permitting or inducing upper plant parts to grow upwards to trail a general upwards growth path.
  • the irrigation to the bottom chamber is aeroponic irrigation and said introducing comprises spraying said irrigation solution to the bottom chambers.
  • a system for cultivating potato plants for the purpose of harvesting tubers comprising: one or more cultivation assemblies, each comprising: two light-sealed chambers, comprising a bottom, root chamber and a top crop chamber, separated by a dividing wall, the crop chamber being defined between said dividing wall and a top wall, a plurality of first openings formed in the dividing wall, and a plurality of second openings formed in the top wall; an irrigation arrangement configured for introducing an irrigation solution into the root chamber and into the crop chamber; the root chamber being configured for receiving roots of a potato plant extending through said first openings; the crop chamber being configured or intended to maintain a stem of the potato plant during growth thereof and permit extension of the stem through the second opening, and to permit growth therein of stolons and growth of tubers on the stolons; and the irrigation arrangement being configured for separate irrigation of the bottom chamber and of the top chamber.
  • Figs. 3A-3B show the system with the top chamber opened, in a more advanced stage of growth in which the stems of the potato plants are made to extend out through the second openings;
  • Figs. 4A-4C show the system with the top chamber opened, in a more advanced stage of growth in which the stems of the potato plants are made to extend out through the second openings;
  • an EC sensor 126 Fitted on line 122 is an EC sensor 126 that is connected to a control utility 128 (to avoid cluttered illustration, electrical and data connections between elements are not shown), which is in turn connected to and controls electric valve 130 on line 118.
  • a control utility 128 to avoid cluttered illustration, electrical and data connections between elements are not shown
  • the relative flow of untreated water through line 118 is regulated to achieve an EC of the mixture of the first and second solutions to be between about 0.1 to about 0.7 mS/cm, typically 0.2 to 0.6 mS/cm or even about 0.4 mS/cm.
  • the pH of the mixture is typically above 5 and usually about 5.4.
  • subassembly 138 will not be described.
  • the corresponding elements in subassembly 136 are denoted with a prime (‘) indication and have a similar function to the corresponding elements of subassembly 138.
  • the pump 152 may be used to control the irrigation schedule. As noted above, it may, for example, be operated in an irrigation cycle that includes bursts of irrigation separated by idle periods with not irrigation.
  • the top member may be placed on a rack with the bottom chamber defined by an installation below the rack.
  • a rack may be configured to receive a plurality of such top members, all having separate or common bottom chamber.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Botany (AREA)
  • Cultivation Of Plants (AREA)

Abstract

L'invention concerne un procédé et un système de culture de plants de pommes de terre dans le but de récolter des tubercules. Les plants de pomme de terre sont cultivés dans un ensemble de culture qui comprend deux chambres étanches à la lumière qui comprennent une chambre inférieure, racinaire et une chambre supérieure de culture, séparées par une paroi de séparation. La chambre de culture comporte une pluralité de premières ouvertures formées dans la paroi de séparation, et une pluralité de secondes ouvertures formées dans la paroi supérieure. Des plantules de pomme de terre sont introduites dans la chambre supérieure tout en permettant aux racines de s'étendre dans la chambre racinaire à travers les premières ouvertures, et une tige de la plante cultivée à partir de la plantule peut s'étendre à travers les secondes ouvertures. Une solution d'irrigation est introduite dans la chambre inférieure et des tubercules de pommes de terre sont récoltés périodiquement dans la chambre supérieure.
PCT/IL2025/050171 2024-02-20 2025-02-19 Procédé de culture de semences de pomme de terre Pending WO2025177274A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US202463555551P 2024-02-20 2024-02-20
US63/555,551 2024-02-20

Publications (1)

Publication Number Publication Date
WO2025177274A1 true WO2025177274A1 (fr) 2025-08-28

Family

ID=96846538

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IL2025/050171 Pending WO2025177274A1 (fr) 2024-02-20 2025-02-19 Procédé de culture de semences de pomme de terre

Country Status (1)

Country Link
WO (1) WO2025177274A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6078879B2 (ja) * 2013-04-16 2017-02-15 パナソニックＩｐマネジメント株式会社 植物栽培装置および植物栽培方法
EP3610719A1 (fr) * 2017-04-13 2020-02-19 Panasonic Intellectual Property Management Co., Ltd. Appareil de culture hydroponique

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6078879B2 (ja) * 2013-04-16 2017-02-15 パナソニックＩｐマネジメント株式会社 植物栽培装置および植物栽培方法
EP3610719A1 (fr) * 2017-04-13 2020-02-19 Panasonic Intellectual Property Management Co., Ltd. Appareil de culture hydroponique

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