WO2016085113A1 - Milieu pour culture hydroponique et son procédé de préparation - Google Patents

Milieu pour culture hydroponique et son procédé de préparation Download PDF

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Publication number
WO2016085113A1
WO2016085113A1 PCT/KR2015/010704 KR2015010704W WO2016085113A1 WO 2016085113 A1 WO2016085113 A1 WO 2016085113A1 KR 2015010704 W KR2015010704 W KR 2015010704W WO 2016085113 A1 WO2016085113 A1 WO 2016085113A1
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adipate
butylene
biodegradable resin
weight
poly
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PCT/KR2015/010704
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English (en)
Korean (ko)
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조승우
이슬기
김쌍옥
조영모
송은범
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대상 주식회사
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Publication of WO2016085113A1 publication Critical patent/WO2016085113A1/fr

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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
    • 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
    • A01G7/00—Botany in general

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  • the present invention relates to a hydroponic cultivation medium and a method for manufacturing the same, and more particularly, to an environmentally friendly hydroponic cultivation medium suitable for germination or plant growth when applied to hydroponic cultivation and a method for producing the same by foam molding.
  • Hydroponic cultivation refers to a method of growing plants in a culture solution made of water and water-soluble nutrients without using soil. It is called water cultivation or watering. This hydroponic cultivation can directly observe the state and growth of the roots, can produce clean vegetables or crops uncontaminated, can be easily grown in the house, decorate the house. Hydroponic cultivation plants are mostly monocotyledonous plants with beard roots. Also, bulbs such as tulips, hyacinths, or daffodils, fruit trees such as pineapples, taro, sweet potatoes, onions, sprouts such as sprouts, plants like begonia, violet, geranium, marigold, and plants like ferremia, ivy, and lucky tree Cultivation is possible.
  • hydroponic cultivation is a method of arranging circular cultivars at appropriate intervals in a styrofoam plate-type cultivation, inserting a polyurethane sponge medium into the cultivation plant, seeding seedlings or seedlings, and feeding the culture medium.
  • polyurethane sponges are difficult to dispose because they are separated as industrial waste. For example, there is a fear that the land is not decomposed well, causing pollution of the soil environment, and incineration may cause pollution of the atmospheric environment.
  • the polyurethane sponge is disposed of by removing the environmental pollution causing factor using a suitable device, there is a problem that the disposal cost increases.
  • 10-2012-0120089 discloses 30-90 parts by weight of a phenol resin, 1-60 parts by weight of a surfactant, 1-50 parts by weight of a pH regulator, 1-30 parts by weight of a blowing agent, and a residual acidic curing agent. It is characterized by mixing and foaming it, the density is 0.01 ⁇ 0.05g / cm 3, the pore diameter (pore diameter) is 30-1000 ⁇ m, the content of the open pore (open pore) is characterized in that 85-100% An absorbent foam for hydroponic cultivation is disclosed.
  • the Republic of Korea Patent Publication No. 10-1340319 discloses a biodegradable multi-purpose bed characterized in that it comprises cotton wool by-products, coco peat, peatmouth, perlite, vermiculite and oil, inorganic nutrients.
  • the object of the present invention is excellent in water resistance and can be used for a long time, suitable for germination or plant growth of seeds, and applied to hydroponic cultivation and is easily decomposed in natural state when disposed of To provide a medium for hydroponic cultivation.
  • the present invention provides a hydroponic cultivation medium consisting of a foam comprising a starch, a biodegradable resin and a foaming aid.
  • the biodegradable resin is polylactic acid (PLA), polyglycolic acid (Polyglycolic acid, PGA), polycaprolactone (Polycaprolactone, PCL), polyvinyl alcohol, polybutylene succinate (Polybutylene succinate, PBS ), Polyhydroxyalkanoate (PHA), copolymer of butylenesuccinate and adipate [Poly (butylene succinate-co-adipate), PBS / A], butylene adipate and butylene terephthalate Selected from the group consisting of copolymers [Poly (butylene adipate-co-bytylene terephtalate), PBA / BT] and copolymers of butylene adipate and terephthalate [
  • the present invention provides a method for producing a hydroponic cultivation medium comprising the step of foam molding the composition for producing hydroponic cultivation medium.
  • the composition for producing hydroponic cultivation medium comprises starch, biodegradable resin and foaming aid, the water content is 10 to 30% by weight.
  • the biodegradable resin is polylactic acid (Polylactic acid, PLA), polyglycolic acid (Polyglycolic acid, PGA), polycaprolactone (Polycaprolactone, PCL), polyvinyl alcohol, polybutylene succinate (Polybutylene succinate, PBS ), Polyhydroxyalkanoate (PHA), copolymer of butylenesuccinate and adipate [Poly (butylene succinate-co-adipate), PBS / A], butylene adipate and butylene terephthalate Selected from the group consisting of copolymers [Poly (butylene adipate-co-bytylene terephtalate), PBA / BT] and copolymers of butylene adipate and terephthalate [Poly (butylene adipate-co-bytylene terephtalate), PBA / T] It is preferable that it is 1 or more types.
  • the starch content based on the total dry weight of the composition for producing hydroponic culture medium is 72 to 91% by weight
  • the content of biodegradable resin is 8 to 27% by weight
  • the content of the foaming aid is 0.1 to 1% by weight desirable.
  • the present invention provides a composition for producing hydroponic cultivation medium comprising starch, biodegradable resin and foaming aid.
  • the biodegradable resin is polylactic acid (PLA), polyglycolic acid (Polyglycolic acid, PGA), polycaprolactone (Polycaprolactone, PCL), polyvinyl alcohol, polybutylene succinate (Polybutylene succinate, PBS ), Polyhydroxyalkanoate (PHA), copolymer of butylenesuccinate and adipate [Poly (butylene succinate-co-adipate), PBS / A], butylene adipate and butylene terephthalate Selected from the group consisting of copolymers [Poly (butylene adipate-co-bytylene terephtalate), PBA / BT] and copolymers of butylene adipate and terephthalate [Poly (butylene adip),
  • the starch content based on the total dry weight of the composition for producing hydroponic culture medium is 72 to 91% by weight
  • the content of biodegradable resin is 8 to 27% by weight
  • the content of the foaming aid is 0.1 to 1% by weight Desirable.
  • Hydroponic cultivation medium according to the present invention is excellent in water resistance and can be used for a long time and is very suitable for germination or plant growth of seeds by hydroponic cultivation.
  • the hydroponic cultivation medium according to the present invention is a biodegradable medium containing starch and biodegradable resins, and is easily decomposed in the natural state upon disposal. Therefore, the hydroponic cultivation medium according to the present invention can be easily disposed of at low cost by landfilling, etc., rather than incineration, and less likely to cause environmental pollution.
  • FIG. 1 is a photograph of a hydroponic cultivation medium prepared in Preparation Example 5 of the present invention
  • Figure 2 is a cross-sectional photograph of a hydroponic cultivation medium prepared in Preparation Example 5 of the present invention.
  • Figure 3 is a graph showing the amount of change in the number of leaves by each type of medium when red cultivated seedlings are planted on the culture medium after cultivation in a thin film hydroponics method
  • Figure 4 is after planting red choi seedlings on the culture medium
  • Figure 5 is a graph showing the change in leaf width for each medium type when cultivated by the thin hydroponic method after planting red choy seedlings on the medium of the cultivation plate to be.
  • composition for producing hydroponic cultivation medium includes starch, biodegradable resins and foaming aids.
  • the composition for producing hydroponic cultivation medium according to the present invention may further include at least one auxiliary additive selected from the group consisting of foaming cell structure reinforcing agent, moisture resistance imparting agent and compatibilizer.
  • Starch which is one component of the composition for preparing hydroponic culture medium according to the present invention is not greatly limited in its kind such as non-modified starch (natural starch) or modified starch.
  • unmodified starch include corn starch, waxy corn starch, tapioca starch, potato starch, sweet potato starch, rice starch, glutinous rice starch, wheat starch, sago starch, soorghum starch, high amylose starch (e.g. For example, starch having an amylose content of at least 40% by weight or more), ⁇ starch, and the like, may be used either alone, or two or more of these may be mixed and used.
  • modified starch examples include alpha starch (pregelatinized starch); Oxidized starch obtained by treatment with an oxidizing agent such as sodium hypochlorite; Thin boiling starch obtained by decomposition with acid, heat or enzymes; Esterified starch such as Monostarch Phosphate and Starch Acetate; Etherified starch, such as hydroxypropyl starch; Cross-linked starch such as Distarch Phosphate; Esterified cross-linked starches such as acetylated distarch adipate, acetylated distarch phosphate, and phosphated distarch phosphate; Etherified crosslinked starch such as Hydroxypropyl Distarch Phosphate; Alkenylsuccinate starch such as Starch Sodium Octenyl Succinate; Dextrins; Crystal starch and the like, any one of these may be used alone, or two or more thereof may be mixed and used.
  • an oxidizing agent such as sodium hypochlorit
  • the starch used as one component of the composition for preparing hydroponic culture medium in the present invention may be composed of a combination of unmodified starch (natural starch) and modified starch.
  • the water content of the starch used as one component of the composition for producing hydroponic culture medium in the present invention may be selected from a conventional range, for example, 5 to 20% by weight, preferably 8 to 15% by weight. to be.
  • the content of starch in the composition for producing hydroponic cultivation medium according to the present invention is not limited so long as it exceeds 60% by weight based on the total dry weight of the composition, it is 72 ⁇ 91% by weight based on the total dry weight of the composition It is preferable and it is more preferable that it is 74-86 weight%.
  • dry weight refers to the weight of the remaining components except moisture.
  • Biodegradable resin which is one component of the composition for preparing hydroponic culture medium according to the present invention, can be mixed with starch to form a foam having a predetermined expansion ratio and a predetermined form stability (particularly, water resistance).
  • PVA polylactic acid
  • PGA polyglycolic acid
  • PCL polycaprolactone
  • PBS polybutylene succinate
  • PHA Polyhydroxyalkanoate
  • PBS butylene succinate and adipate copolymer
  • PBS Poly (butylene succinate-co-adipate), PBS / A]
  • butylene adipate and butylene terephthalate 1 selected from the group consisting of polymer [Poly (butylene adipate-co-bytylene terephtalate), PBA / BT] and copolymer of butylene adipate and terephthalate [Poly (butylene adipate-co-bytylene terephtalate), P
  • the biodegradable resin is a copolymer of butylene succinate and adipate when considering the foaming ratio of the foam prepared by foam molding the composition for producing hydroponic culture medium, the form stability of the foam, the uniformity of the foam cell, and the like.
  • first biodegradable resins selected from the group consisting of poly (butylene adipate-co-terephtalate, PBA / T), polylactic acid (PLA), polyglycolic acid (Polyglycolic acid, PGA), polycaprolactone (PCL), polyvinyl alcohol, polybutylene succinate (PBS) and at least one second selected from the group consisting of polyhydroxyalkanoate (PHA) student It is preferable that it is comprised by the combination of degradable resin.
  • the first biodegradable resin is a copolymer of butylene adipate and terephthalate (Poly (butylene adipate-co-terephtalate), PBA / T] and the second biodegradable resin is polyvinyl alcohol;
  • the first biodegradable resin is a copolymer of butylene adipate and terephthalate [Poly (butylene adipate-co-terephtalate), PBA / T] and the second biodegradable resin is polylactic acid (PLA);
  • the first biodegradable resin is a copolymer of butylene adipate and terephthalate [Poly (butylene adipate-co-terephtalate), PBA / T] and the second biodegradable resin is polycaprolactone (PCL).
  • the first biodegradable resin is a copolymer of butylene adipate and terephthalate (Poly (butylene adipate-co-terephtalate), PBA / T), and the second biodegradable resin is polylactic acid (PLA).
  • PBA polylactic acid
  • the first biodegradable resin is a copolymer of butylene adipate and terephthalate (Poly (butylene adipate-co-terephtalate), PBA / T) and the second biodegradable resin is polyvinyl.
  • the weight ratio of the first biodegradable resin to the second biodegradable resin is preferably 9: 1 to 8: 2 in consideration of the foaming ratio, form stability, raw material cost, and the like of the foam.
  • the first biodegradable resin is a copolymer of butylene adipate and terephthalate (Poly (butylene adipate-co-terephtalate), PBA / T] in the composition for preparing hydroponic culture medium according to the present invention
  • the second biodegradable resin is In the case of polylactic acid (PLA), the weight ratio of the first biodegradable resin to the second biodegradable resin is preferably 9: 1 to 5: 5 in consideration of foaming ratio, form stability, raw material cost, etc.
  • the first biodegradable resin is a copolymer of butylene adipate and terephthalate (Poly (butylene adipate-co-terephtalate), PBA / T] in the composition for preparing hydroponic culture medium according to the present invention
  • the second biodegradable resin is In the case of polycaprolactone (PCL), the weight ratio of the first biodegradable resin to the second biodegradable resin is preferably 9: 1 to 5: 5 in consideration of the foaming ratio of the foam, the form stability and the raw material cost. More preferably from 9: 1 to 8: 2.
  • Foaming aid in the present invention is added to control the uniform foaming and size of the foaming cell of the composition for producing hydroponic culture medium.
  • foaming aids include limestone powder, calcium chloride, ammonium bicarbonate, azide compounds, calcium bicarbonate, calcium carbonate, potassium carbonate, magnesium carbonate, sodium ethyl xanthate, potassium ethyl xanthate, Sodium amyl xanthate, Potassium amyl xanthate, Ammonium carbonate, Calcium acetate, and the like, any one of these may be used alone, or two or more thereof may be mixed and used. It may be.
  • the content of the foaming aid in the composition for producing hydroponic cultivation medium according to the present invention is preferably 0.1 to 1% by weight, more preferably 0.1 to 0.5% by weight based on the total dry weight of the composition.
  • the composition for preparing hydroponic cultivation medium according to the present invention preferably further comprises at least one auxiliary additive selected from the group consisting of foamed cell structure reinforcing agent, moisture resistance imparting agent and compatibilizer in addition to starch, biodegradable resin and foaming aid. It may include.
  • the content of the auxiliary additive in the composition for producing hydroponic culture medium according to the present invention is preferably 0.1 to 1% by weight, more preferably 0.2 to 0.8% by weight based on the total dry weight of the composition.
  • foam cell structural reinforcing agent is added to improve the structure of the foam cell, which can directly affect the mechanical properties of the foam.
  • foam cell structural reinforcing agents that can be used in the present invention include activated carbon, talc, clay, igneous rock powder, mica powder, kaolin powder, polyvinylacetate, polyoxyethylene, etc., any of which may be used alone, You may mix and use 2 or more types of these.
  • the moisture resistance imparting agent is added to prevent shrinkage due to moisture absorption of the foam containing the starch as the main raw material.
  • the moisture resistance imparting agent that can be used in the present invention include paraffin, wax, rosin, lecithin, glyoxal, inorganic water-based, oil-based silicone resin, polyethylene, polypropylene, polystyrene, water-resistant polymers such as peanut oil, cottonseed oil, corn Vegetable oils such as oil, rice bran oil, wheat germ oil, almond oil, avocado oil, poppy seed oil, olive oil, castor oil, sunflower oil, hazelnut oil, walnut oil, pumpkin seed oil, safflower seed oil, and the like. It may be used alone or in combination of two or more of them.
  • compatibilizer is added to uniformly disperse the components of the composition for producing hydroponic culture medium or to plasticize starch or biodegradable resin to improve compatibility.
  • Compatibilizer in the present invention is not particularly limited if the type is used for plasticizing or emulsifying the resin, it can be selected from plasticizers, emulsifiers, surfactants, etc. commonly used in plastic molding, food, cosmetics. have.
  • compatibilizers examples include polyhydric alcohols such as ethylene glycol, glycerin, propylene glycol, sorbitol; Glycerin fatty acid esters such as Glycerin monostearate, Glycerin monooleate, Sorbitan monolaurate, Sorbitan monopalmitate, Sorbitan monostearate sorbitan fatty acid esters such as monostearate, sorbitan monooleate, sorbitan tristearate, sorbitan trioleate, sucrose monostearate, sucrose monostearate, and sucrose monostearate Sucrose fatty acid ethers such as Sucrose monooleate, polyglycerin monostearate, polyglycerin fatty acid esters such as polyglycerin monooleate, monoglyceride acetate, citric acid monoglycerate, lactic acid mono Glyceride, Pumpkin Organic acid monoglycerides such as monoglycerite,
  • the auxiliary additive is preferably selected from a moisture resistance imparting agent to a compatibilizer, and more preferably a compatibilizer.
  • the auxiliary additive in the composition for producing hydroponic culture medium according to the present invention is preferably a glycerin fatty acid ester in a compatibilizer.
  • the method for producing a hydroponic cultivation medium according to the present invention includes the step of foam molding the composition for producing a hydroponic cultivation medium described above. Detailed description of the composition for producing hydroponic culture medium is omitted.
  • the water content of the composition for producing hydroponic cultivation medium during foam molding may be adjusted in advance to be suitable for water-blown foaming or by supplying moisture in the foam molding machine.
  • the water content of the composition for preparing hydroponic cultivation medium suitable for foam molding is 10 to 30% by weight, preferably 15 to 25% by weight.
  • the foam molding may be performed using a variety of known foam molding machines, it is preferable to be carried out using an extruder in consideration of the convenience of the work to the physical properties of the foam.
  • the barrel temperature in the extruder is preferably 90 ⁇ 200 °C but is not necessarily limited thereto.
  • the temperature of the first barrel is 90 ⁇ 150 °C
  • the temperature of the second barrel is 160 ⁇ 220 °C
  • the temperature of the third barrel It is preferable that is 160-220 degreeC.
  • the screw rotational speed of the extruder is preferably 100 ⁇ 2000 rpm, but is not necessarily limited thereto.
  • the extruder is preferably a twin screw extruder.
  • the twin screw extruder has a wider range of material content that can be processed than the single screw extruder, and can control the precise reaction according to the temperature distribution of the barrel, the screw configuration, and the shape of the die.
  • the barrel of the twin-screw extruder has a pressure-resistant structure that can withstand hundreds of atmospheric pressure and is divided into several parts to control temperature of each part.
  • the hydroponic cultivation medium according to the present invention has a foam form including starch, biodegradable resin and foaming aid.
  • the kind of components constituting the foam in the hydroponic cultivation medium according to the present invention is the same as described in the composition for producing hydroponic cultivation medium.
  • the content relationship of the components constituting the foam in the hydroponic culture medium according to the present invention is the same as described based on the total dry weight of the composition for producing hydroponic culture medium.
  • the omitted portion refers to the contents described in the composition for producing hydroponic cultivation medium.
  • the starch content is 72 to 91 wt% based on the total weight of the foam
  • the biodegradable resin is 8 to 27 wt%
  • the content of the foaming aid is 0.1 to 1 wt%. It is preferable.
  • the biodegradable resin is polylactic acid (Polylactic acid, PLA), polyglycolic acid (PGA), polycaprolactone (Polycaprolactone, PCL), polyvinyl alcohol, polybutylene succinate Polybutylene succinate (PBS), polyhydroxyalkanoate (PHA), butylene succinate and adipate copolymer [Poly (butylene succinate-co-adipate), PBS / A], butylene adipate And copolymers of butylene terephthalate [Poly (butylene adipate-co-bytylene terephtalate), PBA / BT] and copolymers of butylene adipate and terephthalate [Poly (butylene adipate-co-terephtalate), PBA / T] It may be at least one selected from the group consisting of.
  • the biodegradable resin is a copolymer of butylenesuccinate and adipate [Poly (butylene succinate-co-adipate), PBS / A], butylene adipate and butylene terephthalate [Poly (butylene adipate-co-bytylene terephtalate), PBA / BT] and copolymers of butylene adipate and terephthalate (Poly (butylene adipate-co-terephtalate), PBA / T]
  • the first biodegradable resin is a copolymer of butylene adipate and terephthalate [Poly (butylene adipate-co-terephtalate), PBA / T] and the second biodegradable resin is a polyvinyl alcohol, the first biodegradable resin It is preferable that the weight ratio of the second biodegradable resin to 9: 1 to 8: 2.
  • the first biodegradable resin is a copolymer of butylene adipate and terephthalate [Poly (butylene adipate-co-terephtalate), PBA / T] and the second biodegradable resin is polylactic acid (PLA) ,
  • the weight ratio of the first biodegradable resin to the second biodegradable resin is preferably 9: 1 to 5: 5.
  • the first biodegradable resin is a copolymer of butylene adipate and terephthalate [Poly (butylene adipate-co-terephtalate), PBA / T] and the second biodegradable resin is a polyglycolic acid (PGA)
  • the weight ratio of the first biodegradable resin to the second biodegradable resin is preferably 9: 1 to 5: 5.
  • the foam may further include at least one auxiliary additive selected from the group consisting of a foaming cell structure reinforcing agent, a moisture resistance imparting agent and a compatibilizer.
  • the content of the auxiliary additive is preferably 0.1 to 1% by weight based on the total weight of the foam.
  • the auxiliary additive is preferably glycerin fatty acid ester.
  • Hydroponic cultivation medium according to the present invention can be used at various stages such as germination of seeds, growth of seedlings.
  • the hydroponic cultivation medium according to the present invention can be applied to a variety of methods, such as thin film hydroponics (Nutritional film technique, NFT), immersion hydroponic method (DFT), spray mirror method, solid culture medium (medium culture). .
  • the extrusion composition was added to a twin screw extruder, and then sequentially passed through a three-stage barrel having a predetermined temperature profile, and then extruded through an extrusion die having a predetermined shape to prepare a hydroponic medium for foam culture.
  • the rotation speed of the main screw (50 mm diameter) of the extruder was 1500rpm
  • the temperature of the first barrel was 90 ⁇ 100 °C
  • the temperature of the second barrel was 180 ⁇ 200 °C
  • the third barrel The temperature was 180-200 degreeC.
  • FIGS. 1 and 2 are photographs of a hydroponic cultivation medium prepared in Preparation Example 5
  • Figure 2 is a cross-sectional photograph of a hydroponic cultivation medium prepared in Preparation Example 5.
  • the hydroponic cultivation medium was foamed at an appropriate magnification and appeared to have a uniform foamed cell of an appropriate size.
  • the foaming rate of the hydroponic cultivation medium prepared in Preparation Examples 1 to 16 was calculated as follows.
  • Foaming rate (multiple) volume of foam / volume of dry raw material mixture
  • the morphological stability of the hydroponic cultivation medium prepared in Preparation Examples 1 to 16 was measured. Specifically, the foam cut to about 2 cm in a beaker containing water, it was transferred to a shaking constant temperature water bath, and left for 1 hour at a temperature of 35 °C and stirring conditions of 85rpm. Thereafter, the foam was taken out, and the degree of loss due to dissolution and the deformation of the form (for example, the degree of deformation in the form of a film without maintaining the structure of the foam cell) were visually observed, and the shape of the original foam was assumed to be 100. The morphological stability of the foam in the state was calculated as a percentage.
  • Table 1 shows the foaming rate and form stability measurement results of the hydroponic cultivation medium prepared in Preparation Examples 1 to 16.
  • Seedlings were obtained by planting, germinating red seed seeds (Hybrid Pakchoi Red Choi Fi; supplier: Asia Seedling Co., Ltd., Korea) on top soil. Then, insert the formal medium into the formal hole of the styrofoam redistribution plate, seedlings grown to a predetermined size on the medium for one week, and then the culture solution flows by a method of thin film hydroponics (Nutritional film technique, NFT) 3 It was grown weekly.
  • a hydroponic cultivation medium prepared in Preparation Example 5 and a polyurethane sponge-type medium as a disclosure medium were used as a formal medium.
  • specific conditions when cultivation in a thin film hydroponic method are as follows.
  • Figure 3 is a graph showing the amount of change in the number of leaves by each type of medium when red cultivated seedlings are planted on the culture medium after cultivation in a thin film hydroponics method
  • Figure 4 is after planting red choi seedlings on the culture medium
  • Figure 5 is a graph showing the change in leaf width for each medium type when cultivated by the thin hydroponic method after planting red choy seedlings on the medium of the cultivation plate to be.
  • “sponge medium” indicates a sponge medium in the form of polyurethane
  • starch medium indicates a hydroponic cultivation medium prepared in Preparation Example 5.

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  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Botany (AREA)
  • Ecology (AREA)
  • Forests & Forestry (AREA)
  • Biological Depolymerization Polymers (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Cultivation Receptacles Or Flower-Pots, Or Pots For Seedlings (AREA)
  • Hydroponics (AREA)

Abstract

La présente invention concerne un milieu pour culture hydroponique, comprenant de l'amidon, une résine biodégradable et une mousse contenant un adjuvant de moussage. Le milieu pour culture hydroponique selon la présente invention peut être utilisé pendant une longue durée en raison de sa remarquable résistance à l'eau et il est particulièrement bien adapté à la germination des graines ou à la croissance des plantes par un procédé hydroponique. De plus, le milieu pour culture hydroponique selon la présente invention est un milieu biodégradable qui contient de l'amidon en tant que matériau principal et une résine biodégradable en tant que matériau secondaire, si bien qu'il peut facilement être dégradé en substances naturelles lorsqu'il est mis au rebut. Par conséquent, le milieu pour culture hydroponique selon la présente invention peut être facilement mis au rebut à moindre coût par enfouissement ou équivalent, plutôt que par incinération, sans crainte de pollution pour l'environnement.
PCT/KR2015/010704 2014-11-24 2015-10-12 Milieu pour culture hydroponique et son procédé de préparation WO2016085113A1 (fr)

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KR102234621B1 (ko) * 2020-09-11 2021-04-01 (주)성산피엔티 방습 및 항균 효과가 우수한 친환경 침투형 접착제 조성물 및 이를 이용하여 제조된 친환경 건축내장재

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06256558A (ja) * 1993-03-03 1994-09-13 Achilles Corp 生分解性発泡体
JP2003143984A (ja) * 2001-11-14 2003-05-20 Suzuki Sogyo Co Ltd 水耕栽培用マット及び水耕栽培方法
JP2007020508A (ja) * 2005-07-20 2007-02-01 Toray Ind Inc 水耕栽培資材
KR20080098045A (ko) * 2006-02-24 2008-11-06 피에이치비 인더스트리얼 에스.에이. 생분해성 폴리우레탄-기초 발포체 제조용 조성물 및 생분해성 폴리우레탄 발포체
KR20120120089A (ko) * 2011-04-22 2012-11-01 한국스미더스 오아시스 주식회사 수경재배용 흡수성 발포체, 이의 제조방법 및 이를 이용한 발포폼

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06256558A (ja) * 1993-03-03 1994-09-13 Achilles Corp 生分解性発泡体
JP2003143984A (ja) * 2001-11-14 2003-05-20 Suzuki Sogyo Co Ltd 水耕栽培用マット及び水耕栽培方法
JP2007020508A (ja) * 2005-07-20 2007-02-01 Toray Ind Inc 水耕栽培資材
KR20080098045A (ko) * 2006-02-24 2008-11-06 피에이치비 인더스트리얼 에스.에이. 생분해성 폴리우레탄-기초 발포체 제조용 조성물 및 생분해성 폴리우레탄 발포체
KR20120120089A (ko) * 2011-04-22 2012-11-01 한국스미더스 오아시스 주식회사 수경재배용 흡수성 발포체, 이의 제조방법 및 이를 이용한 발포폼

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