NL2025055B1 - Composition for releasing plant plugs from plant containers - Google Patents
Composition for releasing plant plugs from plant containers Download PDFInfo
- Publication number
- NL2025055B1 NL2025055B1 NL2025055A NL2025055A NL2025055B1 NL 2025055 B1 NL2025055 B1 NL 2025055B1 NL 2025055 A NL2025055 A NL 2025055A NL 2025055 A NL2025055 A NL 2025055A NL 2025055 B1 NL2025055 B1 NL 2025055B1
- Authority
- NL
- Netherlands
- Prior art keywords
- plant
- container
- composition
- plug
- coating
- Prior art date
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 71
- 230000003578 releasing effect Effects 0.000 title claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 34
- 239000011248 coating agent Substances 0.000 claims abstract description 24
- 238000000576 coating method Methods 0.000 claims abstract description 24
- 241000196324 Embryophyta Species 0.000 claims description 139
- 150000003839 salts Chemical class 0.000 claims description 44
- 239000000853 adhesive Substances 0.000 claims description 29
- 230000001070 adhesive effect Effects 0.000 claims description 29
- 239000000758 substrate Substances 0.000 claims description 17
- 239000002245 particle Substances 0.000 claims description 14
- 239000003415 peat Substances 0.000 claims description 14
- 239000000843 powder Substances 0.000 claims description 14
- 239000000725 suspension Substances 0.000 claims description 14
- 239000004927 clay Substances 0.000 claims description 12
- 238000005507 spraying Methods 0.000 claims description 8
- 235000019486 Sunflower oil Nutrition 0.000 claims description 7
- 239000002689 soil Substances 0.000 claims description 7
- 239000002600 sunflower oil Substances 0.000 claims description 7
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims description 6
- 235000019482 Palm oil Nutrition 0.000 claims description 6
- 239000000835 fiber Substances 0.000 claims description 6
- 239000002540 palm oil Substances 0.000 claims description 6
- 239000003549 soybean oil Substances 0.000 claims description 6
- 235000012424 soybean oil Nutrition 0.000 claims description 6
- 230000008635 plant growth Effects 0.000 claims description 5
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 4
- 150000005323 carbonate salts Chemical class 0.000 claims description 4
- 238000003618 dip coating Methods 0.000 claims description 4
- 239000011574 phosphorus Substances 0.000 claims description 4
- 229910052698 phosphorus Inorganic materials 0.000 claims description 4
- 235000015112 vegetable and seed oil Nutrition 0.000 claims description 4
- 239000008158 vegetable oil Substances 0.000 claims description 4
- 244000025254 Cannabis sativa Species 0.000 claims description 3
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 claims description 3
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 claims description 3
- 229920003043 Cellulose fiber Polymers 0.000 claims description 3
- 244000060011 Cocos nucifera Species 0.000 claims description 3
- 235000013162 Cocos nucifera Nutrition 0.000 claims description 3
- 229920000742 Cotton Polymers 0.000 claims description 3
- 244000068988 Glycine max Species 0.000 claims description 3
- 239000004831 Hot glue Substances 0.000 claims description 3
- 229910002651 NO3 Inorganic materials 0.000 claims description 3
- 235000019483 Peanut oil Nutrition 0.000 claims description 3
- 235000019484 Rapeseed oil Nutrition 0.000 claims description 3
- RDXARWSSOJYNLI-UHFFFAOYSA-N [P].[K] Chemical compound [P].[K] RDXARWSSOJYNLI-UHFFFAOYSA-N 0.000 claims description 3
- 235000009120 camo Nutrition 0.000 claims description 3
- 235000005607 chanvre indien Nutrition 0.000 claims description 3
- 239000003240 coconut oil Substances 0.000 claims description 3
- 235000019864 coconut oil Nutrition 0.000 claims description 3
- 239000011487 hemp Substances 0.000 claims description 3
- 239000011490 mineral wool Substances 0.000 claims description 3
- 239000004006 olive oil Substances 0.000 claims description 3
- 235000008390 olive oil Nutrition 0.000 claims description 3
- 239000000312 peanut oil Substances 0.000 claims description 3
- 239000010451 perlite Substances 0.000 claims description 3
- 235000019362 perlite Nutrition 0.000 claims description 3
- 229910052700 potassium Inorganic materials 0.000 claims description 3
- 229920001059 synthetic polymer Polymers 0.000 claims description 3
- 239000002023 wood Substances 0.000 claims description 3
- 210000002268 wool Anatomy 0.000 claims description 3
- 244000020551 Helianthus annuus Species 0.000 claims description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 2
- 239000011591 potassium Substances 0.000 claims description 2
- 239000003921 oil Substances 0.000 description 14
- 235000019198 oils Nutrition 0.000 description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 239000003795 chemical substances by application Substances 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 7
- 239000003292 glue Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000012010 growth Effects 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- -1 NH NOs) Chemical compound 0.000 description 2
- 230000004913 activation Effects 0.000 description 2
- 239000003337 fertilizer Substances 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 2
- 235000017557 sodium bicarbonate Nutrition 0.000 description 2
- 241000607479 Yersinia pestis Species 0.000 description 1
- 239000007900 aqueous suspension Substances 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003898 horticulture Methods 0.000 description 1
- 239000003621 irrigation water Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
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
- 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
- A01G9/029—Receptacles for seedlings
- A01G9/0299—Handling or transporting of soil blocks or seedlings
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Cultivation Receptacles Or Flower-Pots, Or Pots For Seedlings (AREA)
- Cultivation Of Plants (AREA)
Abstract
The present invention relates to a composition for releasing plant plugs from plant containers and plant containers for holding plant plug, wherein the container is comprised of a coating of the composition for easy removal or release of the plant plug from the plant container. The present invention further relates to a method for assembly of a plant plug in the container.
Description
COMPOSITION FOR RELEASING PLANT PLUGS FROM PLANT CONTAINERS Description The present invention relates to a composition for releasing plant plugs from plant containers and plant containers for holding plant plug, wherein the container is comprised of a coating of the composition for easy removal or release of the plant plug from the plant container. The present invention further relates to a method for assembly of a plant plug in the container.
Cultivating of plants and especially young plants is often performed using various types of growth substrates concentrated into a container, also known as plant plugs, growing plugs or cultivation plugs. Cultivating young plants using plant plugs have shown to improve yields, and produce healthy plants at locations that have a limited space for plant growth in soil. It also provides an easier system for cultivation of seedlings that are difficult to cultivate, since the plug has a potentially greater capacity to withstand pests, disease and drought due to the more contained and controlled environment during plant cultivation. Plug plants grow more consistently.
Plant plugs are produced by mixing of a culture substrate, for example peat, with a powdery glue or adhesive. A culture tray comprised of multiple plant containers or plug apertures is filled with this loose mixture, such that individual plugs stand apart in a tray. Then the culture substrate is bonded by the adhesive by means of a chemical reaction and/or heat treatment, wherein the adhesive powder will become liquid, which makes the adhesive bond to the culture substrate to form a plug inside the tray for holding a seedling or young plant. These plug or growth systems are popular systems in horticulture since the cultivated plant, when ready, should be easily removable from the system, without damaging the young roots.
However, a main issue that occurs during harvesting of the grown plant is that plant plug holding the growth substrate falls apart upon being removed from the container or when the plants are to be transferred to a larger cultivating bed. Therefore plugs are being damaged during the process and may further lead to damage to the plant roots. Furthermore, the adhesive material that is being used to form the plant plug will also make contact to the (plastic) walls of the tray and is often also glued to the wall of the tray. This must be prevented since the plug must be easily releasable from the tray without damaging the roots of the plant or risk of decomposing of the plant plug during release from the tray of the plug.
To overcome these issues release agents can be used. These release agents prevent the adhesive as part of the plant plug to stick to the tray wall, but are also used as a labricant so that the plug can be pulled out of the tray with little resistance. Release agents are being used on the inner wall of the plant container or tray, before the mixture of culture substrate and adhesive is added to the tray to form the plant plugs. Several silicone or polymer based particle suspensions as lubricants have been used. However, they have the downside of becoming to fluid during production of the plant plug when using heat, thereby flowing to one side of the tray and preventing the protective effect, resulting in that the adhesive material will be in contact to the walls of the tray and subsequently glued to the wall of the tray.
Furthermore, clay powdery based suspensions are being used that are sprayed onto the wall of the tray to overcome the problem of the plug adhering to the tray. When the tray is being filled with the culture substrate mixed with the adhesive, the adhesive will bind to the clay powder particles and not so much to the wall of the tray. The clay powder has only a very weak bond with the tray wall. The moment the bonding of the plug takes place, the adhesive also binds to the clay powder. However, in order to release the plug from the tray water is added to the plug, and in turn the bonding of the clay powder with the tray hereby becomes an aqueous suspension through which the plug slides out of the tray. However, part of the powdery clay particles remain bound to the plug with all the negative aspects such as colour differences on the plug, the excess of the powder that enters the irrigation water system, and remnants of the powder that remains on the tray. Furthermore in some cases the powder is party adhered to the wall, requiring large amounts of water to be added to obtain a particle suspension and to release the plug from the tray.
Considering the above, there is a need in the art for an improved release agent and system for efficiently releasing plant plugs from cultivation trays without affecting the integrity of the plant plug and providing a clean plant plug after release, wherein the release agent in general remains in the tray not adhering to the released plant plug. In addition there is a need in the art for a method for assembly of a plant plug in a container or cultivation trays having improved and clean release of the plant plug when said plant after a period of cultivation is being removed from the container or cultivation trays.
It is an object of the present invention, amongst other objects, to address the above need in the art. The object of present invention, amongst other objects, is met by the present invention as outlined in the appended claims.
Specifically, the above object, amongst other objects, is met, according to a first aspect, by the present invention by a composition for releasing plant plugs from plant containers, wherein the composition is comprised of a colloidal suspension of plant-based oil comprised of 15 to 60 wt% of a water-soluble salt. Preferably the plant based oil is comprised of between 20 to 50 wit%, more preferably 30 to 40 wt% of a water-soluble salt. The composition of present invention functions as a release agent for releasing the plant plug from the plant container such that during removal of the plant plug from the container the chance of damaging the plant plugs, plants and root structure is very much reduced or prevented. The composition comprises a natural, vegetable oil in which a salt powder is suspended, which does not dissolve in the oil. The composition should comprises at least 15wt%, preferably at least 25 wt% of the water soluble salt to ensure that a proper contact surface will be provided between the plant plug and container wall, and to ensure a proper coverage when the container wall is coated with the composition, such that the composition can function as an release agent for releasing the plant plug from the container without damaging the integrity of the plant plag. The salt content of the composition of present invention should not exceed 60 wt%, preferably not exceed 50 wt%, since the colloidal suspension at high salt concentrations becomes too difficult to apply (i.e. by spray coating) on the surface of the container wall. The colloidal suspension of present invention can be applied i.e. by spray onto a plant container or tray in a thin layer. The oil ensures a good distribution of the suspension on the container wall and the salt particles will stick to the wall of the container, whereby a very thin layer of oil remains coating the wall comprised powdered salt. In case the plant container is filled with for example a peat glue mixture to form a plant plug, during the formation process of the plant plug the glue or adhesive composition will also adhere to the salt particles coated on the wall of the plant container.
The salt is not soluble in oil but easily soluble in water. Since water is always used in the cultivation of plants, water will be given to the plug immediately after the plug production or ata later stage. The water ensures that the salt will dissolves very quickly so that the connection of the salt to the wall and to the plug is broken and the plug can be easily released from the plant container without damaging the plant plugs, plants and root structure or leaving most of the composition in the tray providing a much cleaner plant plug after removal from the container or tray. The thin layer of oil also provides a sliding effect, reducing the friction between the plant plug and container wall during the release process.
According to a preferred embodiment, the present invention relates to the composition, wherein the water soluble salt is insoluble in the plant-based oil.
According to another preferred embodiment, the present invention relates to the composition, wherein the water-soluble salt is one or more selected from the group consisting of nitrate based salts, potassium based salts, phosphorus based salts, and carbonate salts, preferably a mixture of nitrate-, potassium- and phosphorus based salts. Preferably the salt is present in the composition of present invention as NPK fertilizer salts, providing nitrogen (i.e. NH NOs), phosphorus (i.e. POs) and potassiam salts (i.e. KO), Carbonate salts are preferably calcium carbonate (CaCQs), sodium bicarbonate (NaHCO:), sodium bicarbonate (Na:CO:3) or potassium carbonate (K,CO»).
According to a preferred embodiment, the present invention relates to the composition, wherein the water soluble salt is one or more selected from the group consisting of NH,NO,, P;0s, K5O, CaCO;, NaHCO;:, Na;CO: and K,COs, preferably a mixture of NH4NO:;, P,0Os, and KO.
According to yet another preferred embodiment, the present invention relates to the composition, wherein the salt is present in the colloidal suspension as a powder having a particle size of between 0.5 to 75 um, preferably 0.75 to 50 um, more preferably 0.9 to 30 um, most preferably 1 to 20 um. The salt in the composition is present as a powder suspended in the oil and is preferably very fine such that it quickly dissolves in water and to provide a sufficient coverage of the container wall to ensure a proper release during the release process of the plant plug from the container. When the particles are to large, dissolvability will be affected. When particles are too large, the surface coverage and the connection between the container wall and the plant plug/adhesive mixture after formation of the plant plug will be suboptimal, thereby increasing the risk of the plant plug adhering to the wall of the container. According to another preferred embodiment, the present invention relates to the composition wherein the plant based oil is one or more selected from the group consisting of soybean oil, palm oil, olive oil, peanut oil, sunflower oil, rapeseed oil, coconut oil, preferably soybean or palm oil. Plant based oils may be used that do not burn away at temperatures up to 120 °C, since during plug formation in the plant container may be performed at such elevated temperatures due to the activation of the glue/adhesive.
According to another preferred embodiment, the present invention relates to the composition wherein the composition has a viscosity at 20 °C of between 50 to 90 mPa-s, more preferably 60 to 80 mPa-s. The viscosity of the composition is determined at 20 °C by a Physica MCR301 rheometer. When the composition has a too low viscosity (i.e. below 50 mPa-s), after being applied on the side walls or surfaces of the plant container of tray, it will flow from the surfaces and not provide the coating effect and lubricant effect on the surfaces of the plant container. If the composition is has a high viscosity (i.e. above 90 mPars), the composition will be hard to handle and to apply (e.g. by spray- or dip coating techniques) to the surfaces of the plant container. Furthermore, at such high viscosity the resistance or friction between the contact surface of the plant container and the plant plug during removal of the plant plug from the container is too high and result in higher chances of damaging the plant plugs, plants and root structure.
The present invention, according to a second aspect, relates to a container for holding a plant or plant plug, wherein at least the inside surfaces of the container are comprised of a coating comprised of a composition of present invention.
According to a preferred embodiment, the present invention relates to the container, wherein the coating has thickness of at most 3 mm, preferably at most 1 mm, more preferably at most 0.5 mm.
According to another preferred embodiment, the present invention relates to the container, wherein the container is a plant cultivation tray, holder or cup.
The present invention, according to a further aspect, relates to a method for assembly of a plant plug in a container according to present invention, wherein the method comprises the steps of a) providing a coating of a composition according to present invention on at least the inside surfaces of said container, b) filling of the coated container with an organic substrate suitable for plant growth mixed with an adhesive suitable for production of a plant plug 5 c) forming of the plant plug inside the coated container, preferably by applying heat, to produce the assembly.
According to a preferred embodiment, the present invention relates to the method, wherein the coating has thickness of at most 3 mm, preferably at most 1 mm, more preferably at most 0.5 mm. It the coating is too thin, the coverage of the wall will be suboptimal and the releasing effect of the coating is not present anymore, as well as the protective effect of the composition of not adhering the plant plug during plant plug formation to the wall surface of the plant container.
According to a preferred embodiment, the present invention relates to the method wherein the organic substrate is one or more selected from the group consisting of peat or peat soil, rock wool, wood wool, coconut fiber, cellulose fibers, perlite, clay, hemp fiber, and cotton fibers, preferably of peat or peat soil.
According to a preferred embodiment, the present invention relates to the method wherein the adhesive is one or more selected from synthetic polymer based adhesive, hot melt adhesives and/or biobased adhesive.
According to a preferred embodiment, the present invention relates to the method wherein the forming of the plant plug inside the coated container is done at a temperature of between 50 to 100 °C, preferably 60 to 90°C , more preferably 70 to 80 °C. During plug formation, the adhesive that has been mixed with the organic substrate is being activated by heat to provide an glue throughout the organic substrate and bond the substrate to form the plant plug inside the container or tray. During this process the salt particles of the composition of present invention are connected to the plant plug as well, thereby connecting the container wall and the plant plug.
According to a preferred embodiment, the present invention relates to the method wherein all surfaces of the plant container is provided with a coating of said composition.
According to a preferred embodiment, the present invention relates to the method wherein the coating is provided by spray-coating or dip-coating, preferably spray-coating.
The present invention will be further detailed in the following examples and figures wherein: Figure 1: Show several examples of plant plugs being removed from the plant container after formation of the plant plug. All plant plugs shown are similar in weight and size and are being produced using the same organic substrate suitable for plant growth mixed with an adhesive suitable for production of a plant plug. The plugs have been produced using heat after which the plugs were cooled using tap water, after which the plant plugs are being removed from the container by inserting a metal pin in the formed plant plug. This method of release simulates the release using a regular plant plug transplant apparatus, which also makes ase of such pins.
A) shows a plant container that has been coated with the composition according to present invention (sunflower oil + 40 wt% NaHCO:), wherein a plant plug was formed. When releasing the plant plug from the container, the whole plant plug is removed easily without affecting the plant plug integrity. Furthermore, a clean release is being achieved without leaving part of the plant plug in the container or that the plug comprises much of the release agent.
B) shows a plant container that has been coated with the composition according to present invention (sunflower oil + 40 wt% NPK fertilizer salts), wherein a plant plug was formed. The plug is again released easily without affecting the plant plug integrity and the release is being achieved without leaving part of the plant plug in the container.
C) shows a plant container that has not been coated according to present invention, wherein a plant plug was formed. During the release, the plant plug integrity is affected and partly breaks. Part of the plug remains in the container, because the plug adheres too strongly too the inside surface of the plant container, due to the adhesive present in the plug and its activation during plug formation.
D) Shows a plant container that has been coated with a commonly used clay powdery based suspension used in the art on the wall of the tray to overcome the problem of the plug adhering to the tray. During the release, a large part of the powdery clay particles remain bound to the plug with the negative aspect of colour differences (white deposits) on the plug, as can be observed. Also the clay powder is party adhered to the wall, and required large amounts of water to be added to obtain a particle suspension and to release the plug from the tray in comparison to the plant containers being coated with the composition of present invention.
Clauses
1. Composition for releasing a plant plug from a plant container, wherein the composition is comprised of a colloidal suspension of plant-based oil comprised of 15 to 60 wt% of a water- soluble salt.
2. Composition according to clause 1, wherein the water soluble salt is insoluble in the plant-based oil.
3. Composition according to clause 1 or 2, wherein the water-soluble salt is one or more selected from the group consisting of nitrate based salts, potassiam based salts, phosphorus based salts, and carbonate salts, preferably a mixture of nitrate-, potassium- and phosphorus based salts.
4. Composition according to any one of the clauses 1 to 3, wherein the water soluble salt is one or i5 more selected from the group consisting of NH,NO;, P,Os, KO, CaCO;, NaHCO; Na:CO: and K;CO:, preferably a mixture of NH,NO;, P,Os, and K;0.
5. Composition according to any one of the clauses 1 to 4, wherein the salt is present in the colloidal suspension as a powder having a particle size of between 0.5 to 75 um, preferably 0.75 to 50 um, more preferably 0.9 to 30 um, most preferably 1 to 20 um.
6. Composition according to any one of the clauses 1 to 5, wherein the plant based oil is one or more selected from the group consisting of soybean oil, palm oil, olive oil, peanut oil, sunflower oil, rapeseed oil, coconut oil, preferably sunflower, soybean or palm oil.
7. Composition according to any one of the clauses 1 to 6, wherein the composition has a viscosity at 20 °C of between 40 to 120 mPa:s, preferably 50 to 90 mPa’s, more preferably 60 to 80 mPas.
8. Container for holding a plant or plant plug, wherein at least the inside surfaces of the container are comprised of a coating comprised of a composition according to any one of clause 1 to7.
9. Container according to clause 8, wherein the coating has thickness of at most 3 mm, preferably at most | mm, more preferably at most 0.5 mm.
10. Container according to clause 8 or 9, wherein the container is a plant cultivation tray, holder or cup.
11. Method for assembly of a plant plug in a container according to any one of the clauses 8 to 10, wherein the method comprises the steps of a) providing a coating of a composition according to any one of clause 1 to 7 on at least the inside surfaces of said container, b) filling of the coated container with an organic substrate suitable for plant growth mixed with an adhesive suitable for production of a plant plug c) forming of the plant plug inside the coated container, preferably by applying heat, to produce the assembly.
12. Method according to clause 11, wherein the coating has thickness of at most 3 mm, preferably at most 1 mm, more preferably at most 0.5 mm.
13. Method according to clause 11 or 12, wherein the organic substrate is one or more selected from the group consisting of peat or peat soil, rock wool, wood wool, coconut fiber, cellulose fibers, perlite, clay, hemp fiber, and cotton fibers, preferably of peat or peat soil.
14. Method according to any one of the clauses 11 to 13, wherein the adhesive is one or more selected from synthetic polymer based adhesive, hot melt adhesives and/or biobased adhesive.
15. Method according to any one of the clauses 11 to 14, wherein the forming of the plant plug inside the coated container is done at a temperature of between 50 to 100 °C, preferably 60 to 90°C, more preferably 70 to 80 °C.
16. Method according to any one of the clauses 11 to 15, wherein all surfaces of the plant container is provided with a coating of said composition.
17. Method according to any one of the clauses 11 to 16, wherein the coating is provided by spray- coating or dip-coating, preferably spray-coating.
Claims (17)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL2025055A NL2025055B1 (en) | 2020-03-05 | 2020-03-05 | Composition for releasing plant plugs from plant containers |
| PCT/EP2021/055632 WO2021176076A1 (en) | 2020-03-05 | 2021-03-05 | Composition for releasing plant plugs from plant containers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL2025055A NL2025055B1 (en) | 2020-03-05 | 2020-03-05 | Composition for releasing plant plugs from plant containers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL2025055B1 true NL2025055B1 (en) | 2021-10-14 |
Family
ID=70155299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL2025055A NL2025055B1 (en) | 2020-03-05 | 2020-03-05 | Composition for releasing plant plugs from plant containers |
Country Status (2)
| Country | Link |
|---|---|
| NL (1) | NL2025055B1 (en) |
| WO (1) | WO2021176076A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4034508A (en) * | 1975-08-11 | 1977-07-12 | Gravi-Mechanics Co. | Polymerized soil with growing plant and method of making and package therefor and hanger and plaque incorporating the same |
| US4221749A (en) * | 1978-07-28 | 1980-09-09 | Gravi-Mechanics Co. | Method of making a body of rooting media |
| JPH06245652A (en) * | 1993-02-25 | 1994-09-06 | Iseki & Co Ltd | Raising seedling container |
| EP1912491A2 (en) * | 2005-07-20 | 2008-04-23 | Jiffy International AS | Method for cultivating plants as well as a culture medium |
| WO2012121592A1 (en) * | 2011-03-04 | 2012-09-13 | Lucas Everhardus Maria Langezaal | A method for producing culture media for cultivating plants, and a culture medium |
-
2020
- 2020-03-05 NL NL2025055A patent/NL2025055B1/en not_active IP Right Cessation
-
2021
- 2021-03-05 WO PCT/EP2021/055632 patent/WO2021176076A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4034508A (en) * | 1975-08-11 | 1977-07-12 | Gravi-Mechanics Co. | Polymerized soil with growing plant and method of making and package therefor and hanger and plaque incorporating the same |
| US4221749A (en) * | 1978-07-28 | 1980-09-09 | Gravi-Mechanics Co. | Method of making a body of rooting media |
| JPH06245652A (en) * | 1993-02-25 | 1994-09-06 | Iseki & Co Ltd | Raising seedling container |
| EP1912491A2 (en) * | 2005-07-20 | 2008-04-23 | Jiffy International AS | Method for cultivating plants as well as a culture medium |
| WO2012121592A1 (en) * | 2011-03-04 | 2012-09-13 | Lucas Everhardus Maria Langezaal | A method for producing culture media for cultivating plants, and a culture medium |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021176076A1 (en) | 2021-09-10 |
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