CN111387016B - Preparation method of special foam matrix material for cultivation and cultivation method - Google Patents
Preparation method of special foam matrix material for cultivation and cultivation method Download PDFInfo
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- CN111387016B CN111387016B CN202010187197.XA CN202010187197A CN111387016B CN 111387016 B CN111387016 B CN 111387016B CN 202010187197 A CN202010187197 A CN 202010187197A CN 111387016 B CN111387016 B CN 111387016B
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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
- A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
- A01G24/30—Growth substrates; Culture media; Apparatus or methods therefor based on or containing synthetic organic compounds
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C1/00—Apparatus, or methods of use thereof, for testing or treating seed, roots, or the like, prior to sowing or planting
- A01C1/06—Coating or dressing seed
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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
- A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
- A01G24/10—Growth substrates; Culture media; Apparatus or methods therefor based on or containing inorganic material
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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
- A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
- A01G24/20—Growth substrates; Culture media; Apparatus or methods therefor based on or containing natural organic material
- A01G24/22—Growth substrates; Culture media; Apparatus or methods therefor based on or containing natural organic material containing plant material
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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
- A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
- A01G24/20—Growth substrates; Culture media; Apparatus or methods therefor based on or containing natural organic material
- A01G24/22—Growth substrates; Culture media; Apparatus or methods therefor based on or containing natural organic material containing plant material
- A01G24/23—Wood, e.g. wood chips or sawdust
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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
- A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
- A01G24/60—Apparatus for preparing growth substrates or culture media
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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
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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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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
- C08J9/14—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
- C08J9/141—Hydrocarbons
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
- C08J9/14—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
- C08J9/143—Halogen containing compounds
- C08J9/147—Halogen containing compounds containing carbon and halogen atoms only
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/14—Saturated hydrocarbons, e.g. butane; Unspecified hydrocarbons
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/14—Saturated hydrocarbons, e.g. butane; Unspecified hydrocarbons
- C08J2203/142—Halogenated saturated hydrocarbons, e.g. H3C-CF3
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08J2397/00—Characterised by the use of lignin-containing materials
- C08J2397/02—Lignocellulosic material, e.g. wood, straw or bagasse
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08J2471/00—Characterised by the use of polyethers obtained by reactions forming an ether link in the main chain; Derivatives of such polymers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/22—Improving land use; Improving water use or availability; Controlling erosion
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- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
- Y02P60/21—Dinitrogen oxide [N2O], e.g. using aquaponics, hydroponics or efficiency measures
Abstract
The present invention relates to the field of plant cultivation. The technical scheme is as follows: a preparation method of a special foam matrix material for cultivation comprises the following steps: 1) preparing biomass liquefaction product resin: preparing the following raw materials in parts by weight: 100 parts of biomass raw material, 30-90 parts of composite liquefier, 15-25 parts of catalyst for liquefaction, 20-40 parts of alkaline catalyst and 40-80 parts of formaldehyde; heating the reaction kettle to 60 ℃, adding the composite liquefying agent, the biomass raw material and the catalyst for liquefaction, stirring at a constant speed, heating to 120-130 ℃, then carrying out heat preservation reaction for 10-30 minutes, stopping the reaction, cooling to 60 ℃, adding an alkaline catalyst to adjust the pH value to alkalinity, adding formaldehyde, heating to 85-95 ℃, carrying out heat preservation for 20-30 minutes, stopping the reaction, and cooling to 60 ℃ to obtain biomass liquefaction product resin; 2) preparing the special foaming substrate material for cultivation. The matrix material obtained by the method has the characteristic of environmental friendliness.
Description
Technical Field
The invention relates to the field of plant cultivation, in particular to a preparation method and a cultivation method of a special foaming matrix material for cultivation.
Background
Modern agriculture and forestry are multidisciplinary system engineering which changes natural environment by using certain facilities and engineering technology, simulates and controls plant growth environmental factors such as air temperature, illumination, humidity, moisture and the like, creates an optimal environment meeting the growth and development requirements of plants or microorganisms, and integrates bioengineering, agricultural engineering and environmental engineering into a whole. The cultivation substrate material serving as a material foundation and a core of the system engineering is required to have the advantages of saving water and nutrients, being clean and sanitary, saving labor and time, being easy to manage, being not limited by land and environmental conditions and the like, can change the traditional agricultural production concept and the traditional cultivation mode of 'all-things-in-soil', and can cultivate crops on sandy and rocky land which is not suitable for cultivation, saline and alkaline land which is not suitable for growing crops and cultivation water surfaces.
In the culture medium required by agricultural, forest and flower production in China, the solid medium produced by taking peat as a raw material always occupies a leading position. Peat is an organic mineral resource converted and accumulated by dead plant residues in marsh, is rich in fiber and organic matters, is loose and porous, has good air and water permeability, high humic acid content and high salinity balance control capacity, is a scarce and precious natural resource because the natural growth of peat is extremely slow, the total amount of peat matrixes consumed in each year in China is over 1000 ten thousand tons, the number of mined peat is ten times of the natural growth amount, the peat resources are exhausted and seriously damaged in the natural ecological environment, severe protection measures are taken as soon as possible, and a novel cultivation matrix material with excellent performance is developed to replace the peat resources, so that the peat cultivation matrix material becomes a major problem to be urgently solved in the field of modern agriculture and forestry cultivation.
The research on the current substrate material for replacing peat resources is relatively wide, and mainly comprises organic substrates such as agricultural and forestry straws, barks, sawdust, sludge, livestock and poultry excrement and inorganic substrates such as rock wool, waste colloidal particles, furnace slag, gravel, perlite and polyurethane bath. The organic matrix has wide sources, low cost and easy degradation, but the preparation process consumes long time, has complex nutrient components and poor environmental protection controllability. The inorganic matrix has good air permeability, but can not retain water, has no nutrients required by plants, and particularly, some petrochemical matrixes can seriously pollute the environment because of being nondegradable. The reasonable use is that the organic matrix and the inorganic matrix are prepared according to a proportion, the plant nutrient is scientific, and the plant nutrient has certain air permeability and water retention capacity.
The three types of culture medium materials can not replace the advantages of the traditional peat resources in the aspect of plant culture effect, can not get rid of the traditional agriculture and forestry culture mode in the utilization method, and can not meet the requirements of the modern agriculture and forestry culture mode on the culture medium materials.
Disclosure of Invention
The invention aims to overcome the defects in the background art and provides a preparation method and a cultivation method of a special foam matrix material for cultivation.
The technical scheme of the invention is as follows:
a preparation method of a special foam matrix material for cultivation comprises the following steps:
1) preparation of biomass liquefaction product resin
Preparing the following raw materials in parts by weight: 100 parts of biomass raw material, 30-90 parts of composite liquefier, 15-25 parts of catalyst for liquefaction, 20-40 parts of alkaline catalyst and 40-80 parts of formaldehyde;
heating the reaction kettle to 60 ℃, adding a composite liquefier, uniformly stirring, adding a biomass raw material, stirring, adding a catalyst for liquefaction, uniformly stirring, heating to 120-130 ℃, then carrying out heat preservation reaction for 10-30 minutes, stopping the reaction, cooling to 60 ℃, adding an alkaline catalyst, adjusting the pH value to alkalinity, adding formaldehyde, heating to 85-95 ℃, carrying out heat preservation for 20-30 minutes, stopping the reaction, cooling to 60 ℃ and obtaining a biomass liquefaction product resin;
2) preparation of special foamed matrix material for cultivation
Preparing the following raw materials in parts by weight: 100 parts of biomass liquefaction product resin, 3-10 parts of hydrophilic toughening agent, 10-30 parts of emulsifying active agent, 25-70 parts of cross-linking agent, 8-30 parts of foaming agent, 5-18 parts of catalytic curing agent, 5-15 parts of fertilizer particles and 0.75-2 parts of internal mold release agent;
secondly, adding a hydrophilic toughening agent into the biomass liquefied product resin, stirring uniformly, then respectively adding an emulsifying active agent, a cross-linking agent, a foaming agent and a curing catalyst, stirring, then adding fertilizer particles and an internal release agent, stirring, injecting into a mold for foaming, demolding after 20 minutes, taking out, standing for 30 minutes, and completely curing to obtain the special foaming matrix material for cultivation.
A preparation method of a special foam matrix material for cultivation is characterized by comprising the following steps:
1) preparation of biomass liquefaction product resin
Preparing the following raw materials in parts by weight: 100 parts of biomass raw material, 30-90 parts of composite liquefier, 15-25 parts of catalyst for liquefaction, 20-40 parts of alkaline catalyst and 40-80 parts of formaldehyde;
heating the reaction kettle to 60 ℃, adding a composite liquefier, uniformly stirring, adding a biomass raw material, stirring, adding a catalyst for liquefaction, uniformly stirring, heating to 120-130 ℃, then carrying out heat preservation reaction for 10-30 minutes, stopping the reaction, cooling to 60 ℃, adding an alkaline catalyst, adjusting the pH value to alkalinity, adding formaldehyde, heating to 85-95 ℃, carrying out heat preservation for 20-30 minutes, stopping the reaction, cooling to 60 ℃ and obtaining a biomass liquefaction product resin;
2) preparation of special foamed matrix material for cultivation
Preparing the following raw materials in parts by weight: 100 parts of biomass liquefaction product resin, 3-10 parts of hydrophilic toughening agent, 10-30 parts of emulsifying active agent, 25-70 parts of cross-linking agent, 8-30 parts of foaming agent, 5-18 parts of catalytic curing agent, 5-15 parts of fertilizer particles, 0.75-2 parts of internal release agent and 1.5-3 parts of coating seeds;
adding a hydrophilic toughening agent into the biomass liquefied product resin, stirring uniformly, adding an emulsifying active agent, a cross-linking agent, a foaming agent and a curing catalyst respectively, stirring, adding fertilizer particles, an internal release agent and coated seeds, stirring, injecting into a mold for foaming, demolding after 20 minutes, taking out, standing for 30 minutes, and completely curing to obtain the special foaming matrix material for cultivation.
When the coated seeds are prepared, firstly, healthy plant seeds suitable for growth are selected, then, 5-80 mg of bactericide, 0.1-1.2 g of plant growth regulator, 50-80 g of trace elements, 120-300 g of film-forming agent and water are selected for each kg of seeds to be mixed, then, the selected plant seeds are added to be fully stirred, the mixture is exposed to the sun and turned over at regular time, and film-shaped coatings are formed on the surfaces of the seeds after drying, so that the coated seeds are obtained.
The biomass raw material is one or a mixture of a plurality of bamboo, wood and crop straw in any proportion, and is crushed to 40 meshes or below; the composite liquefying agent is phenol and polyethylene glycol-400 in a mass ratio of 1-3: 1; the catalyst for liquefaction is one of sulfuric acid, hydrochloric acid, phosphoric acid or nitric acid; the alkaline catalyst is caustic soda solution or sodium carbonate solution with the concentration of 30-60%; the formaldehyde is industrial formaldehyde solution or low-polymerization-degree paraformaldehyde with the content of 37-40%.
The hydrophilic toughening agent is one or a mixture of more of hydrophilic polyether polyol EP-400, hydrophilic polyether polyol n210, hydrophilic polyether polyol 330 and hydrophilic polyether polyol 4110 in any proportion; the emulsifying active agent is one or a mixture of a plurality of polyoxyethylene sorbitan monooleate, polyoxyethylene octyl phenol ether-10 and sorbitan fatty acid ester in equal proportion; the cross-linking agent is toluene diisocyanate, diphenylmethane diisocyanate and polymethylene polyphenyl polyisocyanate with the mass ratio of 0.2: 0.4; the foaming agent is one or a mixture of more of n-pentane, isopentane, cyclopentane and monofluorodichloroethane in any proportion; the catalytic curing agent is inorganic acid and organic acid with the mass ratio of 1: 1; the inorganic acid is phosphoric acid; the organic acid is one or a mixture of more of p-toluenesulfonic acid, oxalic acid and adipic acid in any proportion; the fertilizer particles are hardened particles prepared by mixing, extruding and drying the compound fertilizer and the organic fertilizer in a mass ratio of 1: 1; the internal release agent is amino modified polysiloxane.
The plant growth regulator is any one of titanium citrate, gibberellin, brassin, diethyl aminoethyl hexanoate, naphthylacetic acid and gamma-polyglutamic acid, the microelement is equal proportion mixture of MnSO 4. H2O, ZnSO 4.7H2O and 98% ammonium molybdate, and the film-forming agent is at least one of polyvinyl alcohol, yellow collagen, sodium carboxymethylcellulose and polyacrylamide; the bactericide is any one of the botanical bactericides of the fenacet and the carbendazim.
The method for cultivating the plants by using the special foaming matrix material for cultivation comprises the following steps:
1) scooping moss from the surface of the shady and cool wetland;
2) the moss is rinsed by water gently to remove silt, and then the moss is mixed with rice washing water, expired milk and soybean milk in equal proportion and poured into a soybean milk machine to be stirred rapidly to prepare moss soybean milk;
3) pouring the moss soymilk into a container, and dipping the moss soymilk by a brush to uniformly brush the moss soymilk on the surface of the special foaming matrix material for cultivation or spraying the moss soymilk on the surface of the special foaming matrix material for cultivation until the moss soymilk on the surface is uniformly full;
4) spraying water mist after the surface of the special foaming matrix material for cultivation is slightly dry, and spraying water mist in the morning and evening every day to ensure that the surface of the special foaming matrix material for cultivation is wet, so that moss can grow after 3 days, and the surface of the special foaming matrix material is full of moss after one week, and the water mist is sprayed in the morning and evening to keep the leaf surfaces of the moss wet, so that the moss grows vigorously and the growth period is prolonged.
The method for cultivating the plants by using the special foaming matrix material for cultivation comprises the following steps:
1) placing the special cultivation foaming matrix material in the sun, and spraying clear water for the first time until water seeps out of the bottom of the special cultivation foaming matrix material;
2) spraying water mist once a day to moisten the surface of the special foaming matrix material for cultivation;
3) after the seeds of the coated plants germinate, a sunshade net is built above the special cultivation foaming matrix material, so that the seedlings can complete photosynthesis under the irradiation of scattered sunlight, and fertilizer particles in the special cultivation foaming matrix material slowly release nutrition to enable the seedlings to grow quickly;
4) after the root system of the seedling normally develops, under the action of a plant growth regulator and trace elements in the cracked seed coating, the plant is promoted to reach a vigorous growth period, and then water is sprayed on the leaf surface and the surface of the special foaming matrix material for cultivation every three days.
The invention has the beneficial effects that:
the substrate material is prepared into a soil-free cultivation substrate material suitable for various cultivation modes by taking rich crop straws and forestry 'three-residue' resources as raw materials through liquefaction and foaming, and the biomass foam substrate material not only has the characteristics of degradability, environmental friendliness, looseness, porosity, good air and water permeability, strong adsorption chelating capacity and large ion exchange capacity, but also can be blended and foamed with prepared dry granular organic fertilizer to prepare a novel substrate material for water retention, fertilizer retention, slow release and fertilizer control, so that harmful substances are controlled at the source, the quality safety of agricultural products is effectively guaranteed, and the substrate material is wide in applicability, environment-friendly, resource-saving and efficient resource utilization in modern agriculture and forestry cultivation modes;
the foam substrate material has uniform cell structure, light weight and high strength, and the raw materials are hydrophilic and have good water absorption and retention performance; compared with the traditional peat and other natural substrate materials, the peat and other natural substrate materials can be produced and manufactured in a clean environment, are not influenced by natural climate and environment, cannot generate plant diseases and insect pests, insect eggs and weed seeds, and ensure that agriculture and forestry do not eat food in the sky; because the waste crop straws and forestry 'three residues' are used as raw materials, the production cost is only half of that of purchasing peat; because the production process is completely controlled, the nutrient composition of the substrate material can be adjusted according to different plant growth requirements, and the optimal plant growth environment and space are created.
Drawings
FIG. 1 is a schematic sectional view of a special foam substrate material for cultivation.
FIG. 2 is a schematic representation of the seeds of FIG. 1 after 3 days of growth.
FIG. 3 is a schematic representation of the seeds of FIG. 1 after 10 days of growth.
FIG. 4 is a schematic representation of the seed of FIG. 1 after 20 days of growth.
Detailed Description
The present invention will be further described with reference to the drawings attached to the specification, but the present invention is not limited to the following examples.
Example 1
A preparation method of a special foam matrix material for cultivation comprises the following steps:
1) preparation of biomass liquefaction product resin
Preparing the following raw materials in parts by weight: 100 parts of biomass raw material (bamboo wood), 30 parts of composite liquefying agent (2: 1 phenol and polyethylene glycol-400), 20 parts of liquefying catalyst (sulfuric acid), 20 parts of alkaline catalyst (40% caustic soda solution) and 60 parts of formaldehyde (38% industrial formaldehyde solution);
heating the reaction kettle to 60 ℃, adding a composite liquefier, uniformly stirring, adding a biomass raw material, stirring, adding a catalyst for liquefaction, uniformly stirring, heating to 120 ℃, keeping the temperature for reaction for 10 minutes, stopping the reaction, cooling to 60 ℃, adding an alkaline catalyst, adjusting the pH value to be alkaline, adding formaldehyde, heating to 85 ℃, keeping the temperature for 20 minutes, stopping the reaction, cooling to 60 ℃, and obtaining a biomass liquefaction product resin;
2) preparation of special foamed matrix material for cultivation
Preparing the following raw materials in parts by weight: 100 parts of biomass liquefaction product resin, 3 parts of hydrophilic toughening agent (hydrophilic polyether polyol EP-400), 15 parts of emulsifying active agent (mixture of sorbitan fatty acid ester and polyoxyethylene sorbitan monooleate in a ratio of 1: 1), 25 parts of crosslinking agent (toluene diisocyanate, diphenylmethane diisocyanate and polymethylene polyphenyl polyisocyanate in a mass ratio of 0.2: 0.4), 8 parts of foaming agent (cyclopentane), 12 parts of catalytic curing agent (phosphoric acid and p-toluenesulfonic acid in a mass ratio of 1: 1), 5 parts of fertilizer particles and 0.75 part of internal mold release agent;
adding a hydrophilic toughening agent into the biomass liquefied product resin, stirring uniformly, adding an emulsifying active agent, a cross-linking agent, a foaming agent and a curing catalyst respectively, stirring for 2 seconds, adding fertilizer particles and an internal release agent, stirring for 3 seconds, injecting into a mold, foaming, demolding after 20 minutes, taking out, standing for 30 minutes, and completely curing to obtain the special foaming matrix material for cultivation.
Example 2
A preparation method of a special foam matrix material for cultivation comprises the following steps:
1) preparation of biomass liquefaction product resin
Preparing the following raw materials in parts by weight: 100 parts of biomass raw material (wood), 90 parts of composite liquefying agent (3: 1 phenol and polyethylene glycol-400), 25 parts of liquefying catalyst (hydrochloric acid), 30 parts of alkaline catalyst (40% sodium carbonate solution) and 80 parts of formaldehyde (40% industrial formaldehyde solution);
heating the reaction kettle to 60 ℃, adding a composite liquefier, uniformly stirring, adding a biomass raw material, stirring, adding a catalyst for liquefaction, uniformly stirring, heating to 125 ℃, keeping the temperature for reaction for 20 minutes, stopping the reaction, cooling to 60 ℃, adding an alkaline catalyst, adjusting the pH value to be alkaline, adding formaldehyde, heating to 90 ℃, keeping the temperature for 25 minutes, stopping the reaction, cooling to 60 ℃, and obtaining a biomass liquefaction product resin;
2) preparation of special foamed matrix material for cultivation
Preparing the following raw materials in parts by weight: 100 parts of biomass liquefaction product resin, 6 parts of hydrophilic toughening agent (hydrophilic polyether polyol n210), 15 parts of emulsifying active agent (polyoxyethylene octylphenol ether-10 and polyoxyethylene sorbitan monooleate are mixed in equal proportion), 40 parts of crosslinking agent (toluene diisocyanate, diphenylmethane diisocyanate and polymethylene polyphenyl polyisocyanate in a mass ratio of 0.2: 0.4), 15 parts of foaming agent (isopentane), 5 parts of catalytic curing agent (phosphoric acid and oxalic acid in a mass ratio of 1: 1), 15 parts of fertilizer particles and 1.5 parts of internal release agent;
adding a hydrophilic toughening agent into the biomass liquefied product resin, stirring uniformly, adding an emulsifying active agent, a cross-linking agent, a foaming agent and a curing catalyst respectively, stirring for 2 seconds, adding fertilizer particles and an internal release agent, stirring for 3 seconds, injecting into a mold, foaming, demolding after 20 minutes, taking out, standing for 30 minutes, and completely curing to obtain the special foaming matrix material for cultivation.
Example 3
A preparation method of a special foam matrix material for cultivation comprises the following steps:
1) preparation of biomass liquefaction product resin
Preparing the following raw materials in parts by weight: 100 parts of biomass raw materials (crop straws), 60 parts of composite liquefying agents (1: 1 phenol and polyethylene glycol-400), 15 parts of liquefying catalyst (nitric acid), 40 parts of alkaline catalyst (50% caustic soda solution) and 40 parts of formaldehyde (40% industrial formaldehyde solution);
heating the reaction kettle to 60 ℃, adding a composite liquefier, uniformly stirring, adding a biomass raw material, stirring, adding a catalyst for liquefaction, uniformly stirring, heating to 130 ℃, keeping the temperature for reaction for 30 minutes, stopping the reaction, cooling to 60 ℃, adding an alkaline catalyst, adjusting the pH value to be alkaline, adding formaldehyde, heating to 95 ℃, keeping the temperature for 30 minutes, stopping the reaction, cooling to 60 ℃, and obtaining a biomass liquefaction product resin;
2) preparation of special foamed matrix material for cultivation
Preparing the following raw materials in parts by weight: 100 parts of biomass liquefaction product resin, 10 parts of hydrophilic toughening agent (hydrophilic polyether polyol 330), 30 parts of emulsifying active agent (polyoxyethylene octylphenol ether-10, mixed sorbitan fatty acid ester 1: 1), 70 parts of crosslinking agent (toluene diisocyanate, diphenylmethane diisocyanate and polymethylene polyphenyl polyisocyanate in a mass ratio of 0.2: 0.4), 30 parts of foaming agent (n-pentane), 18 parts of catalytic curing agent (phosphoric acid and adipic acid in a mass ratio of 1: 1), 10 parts of fertilizer particles and 2 parts of internal release agent;
adding a hydrophilic toughening agent into the biomass liquefied product resin, stirring uniformly, adding an emulsifying active agent, a cross-linking agent, a foaming agent and a curing catalyst respectively, stirring for 2 seconds, adding fertilizer particles and an internal release agent, stirring for 3 seconds, injecting into a mold, foaming, demolding after 20 minutes, taking out, standing for 30 minutes, and completely curing to obtain the special foaming matrix material for cultivation.
Example 4
A preparation method of a special foam matrix material for cultivation comprises the following steps:
1) preparation of biomass liquefaction product resin
Preparing the following raw materials in parts by weight: 100 parts of biomass raw material (bamboo wood), 60 parts of composite liquefying agent (2: 1 phenol and polyethylene glycol-400), 15 parts of liquefying catalyst (phosphoric acid), 40 parts of alkaline catalyst (50% sodium carbonate solution) and 40 parts of formaldehyde (38% industrial formaldehyde solution);
heating the reaction kettle to 60 ℃, adding a composite liquefier, uniformly stirring, adding a biomass raw material, stirring, adding a catalyst for liquefaction, uniformly stirring, heating to 130 ℃, keeping the temperature for reaction for 30 minutes, stopping the reaction, cooling to 60 ℃, adding an alkaline catalyst, adjusting the pH value to be alkaline, adding formaldehyde, heating to 95 ℃, keeping the temperature for 30 minutes, stopping the reaction, cooling to 60 ℃, and obtaining a biomass liquefaction product resin;
2) preparation of special foamed matrix material for cultivation
Preparing a coated seed:
firstly, selecting proper plant seeds, then selecting 40mg of bactericide (carbendazim), 0.8g of plant growth regulator (gibberellin), 70g of trace elements, 200g of film-forming agent (polyvinyl alcohol) and a proper amount of water (based on the raw material components capable of being bonded) for mixing according to each kg of seeds, then adding the plant seeds, fully stirring, solarizing in the sun and turning over at regular time (recommended for 20-30 minutes), and forming film-shaped coatings on the surfaces of the plant seeds after drying to obtain coated seeds, so that the plant seeds are not damaged when mixed with foaming materials for foaming and normally germinate at proper temperature and moisture;
preparing the following raw materials in parts by weight: 100 parts of biomass liquefaction product resin, 10 parts of hydrophilic toughening agent (hydrophilic polyether polyol EP-400), 30 parts of emulsifying active agent (polyoxyethylene octylphenol ether-10, mixed sorbitan fatty acid ester 1: 1), 70 parts of crosslinking agent (toluene diisocyanate, diphenylmethane diisocyanate and polymethylene polyphenyl polyisocyanate in a mass ratio of 0.2: 0.4), 30 parts of foaming agent (cyclopentane), 18 parts of catalytic curing agent (phosphoric acid and adipic acid in a mass ratio of 1: 1), 10 parts of fertilizer particles, 2 parts of internal release agent and 1.5 parts of coated seeds;
thirdly, adding a hydrophilic toughening agent into the biomass liquefied product resin, stirring uniformly, respectively adding an emulsifying active agent, a cross-linking agent, a foaming agent and a curing catalyst, stirring for 2 seconds, adding fertilizer particles, an internal release agent and coated seeds, stirring for 3 seconds, injecting into a mold for foaming, demolding after 20 minutes, taking out, standing for 30 minutes, and completely curing to obtain the special foaming matrix material for seed cultivation.
Example 5
A method for cultivating plants by using a special foaming matrix material for cultivation comprises the following steps:
1) scooping the moss from the ground; the moss growing in the wild is shady and moist, and is shoveled into a container by a shovel blade in a thin and thin way;
2) the moss is rinsed by water gently to remove silt, and then the moss is mixed with rice washing water, expired milk and soybean milk in equal proportion and poured into a soybean milk machine to be stirred rapidly to prepare moss soybean milk;
3) pouring the moss soymilk into a container, and dipping the moss soymilk by a brush to uniformly brush the moss soymilk on the surface of the special foaming matrix material for cultivation or spraying the moss soymilk on the surface of the special foaming matrix material for cultivation until the soymilk on the surface is uniformly full;
4) spraying water mist after the surface of the special foaming matrix material for cultivation is slightly dry, and spraying water mist in the morning and evening every day to ensure that the surface is moist, so that moss can grow after 3 days, and the surface is full of moss after one week, and the water mist is sprayed in the morning and evening to keep the leaf surfaces of the moss moist, vigorous growth and prolonged growth period.
Example 6
A method for cultivating plants by using a special foaming matrix material for cultivation comprises the following steps:
1) placing the special cultivation foam matrix material (shown in figure 1) in the sun, and spraying clear water until water seeps out from the bottom of the special cultivation foam matrix material;
2) spraying water mist once a day to moisten the surface of the special foaming matrix material for cultivation;
3) three days later, the coated seeds germinate (shown in figure 2), a sunshade net is built above the special cultivation foam matrix material, so that the seedlings can complete photosynthesis under the irradiation of scattered sunlight, and fertilizer particles in the special cultivation foam matrix material slowly release nutrition to enable the seedlings to rapidly grow;
4) after 10 days, the root system development of the seedlings is good (shown in figure 3), after 20 days, the plants reach a vigorous growth period (shown in figure 4), and then water is sprayed on the leaf surfaces and the surfaces of the special foaming matrix materials for cultivation once every three days.
In the above embodiment:
the biomass raw material is one or a mixture of a plurality of bamboo, wood and crop straw in any proportion, and is crushed to 40 meshes or below. The composite liquefying agent is phenol and polyethylene glycol-400 at a mass ratio of 1-3: 1, and other polyalcohol compounds can also be used. The catalyst for liquefaction is one of sulfuric acid, hydrochloric acid, phosphoric acid and nitric acid. The alkaline catalyst is caustic soda (sodium hydroxide) solution or sodium carbonate (sodium carbonate) solution with the concentration of 30-60%. The formaldehyde is an industrial formaldehyde solution or low-polymerization-degree paraformaldehyde with the content of 37-40%.
The hydrophilic toughening agent is one or a mixture of more of hydrophilic polyether polyol EP-400, hydrophilic polyether polyol n210, hydrophilic polyether polyol 330 and hydrophilic polyether polyol 4110 in any proportion. The emulsifying activator is one or more of polyoxyethylene sorbitan monooleate (TW-60, TW-65, TW-80), polyoxyethylene octyl phenol ether-10 (OP-10), and sorbitan fatty acid ester (SP-60, SP-80) mixed at any ratio. The crosslinking agent is Toluene Diisocyanate (TDI), diphenylmethane diisocyanate (MDI) or polymethylene polyphenyl polyisocyanate (PAPI) with a mass ratio of 0.2: 0.4. The foaming agent is one or a mixture of more of n-pentane, isopentane, cyclopentane and monofluoro dichloroethane (HCFC-141b) in any proportion. The catalytic curing agent is inorganic acid and organic acid with the mass ratio of 1: 1; the inorganic acid is phosphoric acid; the organic acid is one or a mixture of more of p-toluenesulfonic acid, oxalic acid and adipic acid in any proportion. The fertilizer particles are hardened particles prepared by mixing and drying the compound fertilizer and the organic fertilizer according to the mass ratio of 1: 1. The internal release agent is amino modified polysiloxane.
The mould can be in a flat plate shape, a round flowerpot shape or an oblong flowerpot shape.
Claims (7)
1. A preparation method of a special foam matrix material for cultivation comprises the following steps:
1) preparation of biomass liquefaction product resin
Preparing the following raw materials in parts by weight: 100 parts of biomass raw material, 30-90 parts of composite liquefier, 15-25 parts of catalyst for liquefaction, 20-40 parts of alkaline catalyst and 40-80 parts of formaldehyde;
heating the reaction kettle to 60 ℃, adding a composite liquefier, uniformly stirring, adding a biomass raw material, stirring, adding a catalyst for liquefaction, uniformly stirring, heating to 120-130 ℃, then carrying out heat preservation reaction for 10-30 minutes, stopping the reaction, cooling to 60 ℃, adding an alkaline catalyst, adjusting the pH value to alkalinity, adding formaldehyde, heating to 85-95 ℃, carrying out heat preservation for 20-30 minutes, stopping the reaction, cooling to 60 ℃ and obtaining a biomass liquefaction product resin;
2) preparation of special foamed matrix material for cultivation
Preparing the following raw materials in parts by weight: 100 parts of biomass liquefaction product resin, 3-10 parts of hydrophilic toughening agent, 10-30 parts of emulsifying active agent, 25-70 parts of cross-linking agent, 8-30 parts of foaming agent, 5-18 parts of catalytic curing agent, 5-15 parts of fertilizer particles and 0.75-2 parts of internal mold release agent;
adding a hydrophilic toughening agent into the biomass liquefied product resin, stirring uniformly, adding an emulsifying active agent, a cross-linking agent, a foaming agent and a catalytic curing agent respectively, stirring, adding fertilizer particles and an internal release agent, stirring, injecting into a mold for foaming, demolding after 20 minutes, taking out, standing for 30 minutes, and completely curing to obtain a special foaming matrix material for cultivation;
the biomass raw material is one or a mixture of a plurality of bamboo, wood and crop straw in any proportion, and is crushed to 40 meshes or below; the composite liquefying agent is phenol and polyethylene glycol-400 in a mass ratio of 1-3: 1; the catalyst for liquefaction is one of sulfuric acid, hydrochloric acid, phosphoric acid or nitric acid; the alkaline catalyst is caustic soda solution or sodium carbonate solution with the concentration of 30-60%; the formaldehyde is industrial formaldehyde solution or low-polymerization-degree paraformaldehyde with the content of 37-40%.
2. A preparation method of a special foam matrix material for cultivation is characterized by comprising the following steps:
1) preparation of biomass liquefaction product resin
Preparing the following raw materials in parts by weight: 100 parts of biomass raw material, 30-90 parts of composite liquefier, 15-25 parts of catalyst for liquefaction, 20-40 parts of alkaline catalyst and 40-80 parts of formaldehyde;
heating the reaction kettle to 60 ℃, adding a composite liquefier, uniformly stirring, adding a biomass raw material, stirring, adding a catalyst for liquefaction, uniformly stirring, heating to 120-130 ℃, then carrying out heat preservation reaction for 10-30 minutes, stopping the reaction, cooling to 60 ℃, adding an alkaline catalyst, adjusting the pH value to alkalinity, adding formaldehyde, heating to 85-95 ℃, carrying out heat preservation for 20-30 minutes, stopping the reaction, cooling to 60 ℃ and obtaining a biomass liquefaction product resin;
2) preparation of special foamed matrix material for cultivation
Preparing the following raw materials in parts by weight: 100 parts of biomass liquefaction product resin, 3-10 parts of hydrophilic toughening agent, 10-30 parts of emulsifying active agent, 25-70 parts of cross-linking agent, 8-30 parts of foaming agent, 5-18 parts of catalytic curing agent, 5-15 parts of fertilizer particles, 0.75-2 parts of internal release agent and 1.5-3 parts of coating seeds;
adding a hydrophilic toughening agent into the biomass liquefied product resin, stirring uniformly, adding an emulsifying active agent, a cross-linking agent, a foaming agent and a catalytic curing agent respectively, stirring, adding fertilizer particles, an internal release agent and coated seeds, stirring, injecting into a mold for foaming, demolding after 20 minutes, taking out, standing for 30 minutes, and completely curing to obtain a special foaming matrix material for cultivation;
the biomass raw material is one or a mixture of a plurality of bamboo, wood and crop straw in any proportion, and is crushed to 40 meshes or below; the composite liquefying agent is phenol and polyethylene glycol-400 in a mass ratio of 1-3: 1; the catalyst for liquefaction is one of sulfuric acid, hydrochloric acid, phosphoric acid or nitric acid; the alkaline catalyst is caustic soda solution or sodium carbonate solution with the concentration of 30-60%; the formaldehyde is industrial formaldehyde solution or low-polymerization-degree paraformaldehyde with the content of 37-40%.
3. The method for preparing the foam matrix material special for cultivation as claimed in claim 2, wherein the method comprises the following steps: when the coated seeds are prepared, firstly, healthy plant seeds suitable for growth are selected, then, 5-80 mg of bactericide, 0.1-1.2 g of plant growth regulator, 50-80 g of trace elements, 120-300 g of film-forming agent and a proper amount of water are selected for each kilogram of seeds and mixed, then, the selected plant seeds are added and fully stirred, the seeds are exposed to the sun and turned over at regular time, and film-shaped coatings are formed on the surfaces of the seeds after drying, so that the coated seeds are obtained.
4. The method for preparing the foam matrix material special for cultivation as claimed in claim 1 or 2, wherein: the hydrophilic toughening agent is one or a mixture of more of hydrophilic polyether polyol EP-400, hydrophilic polyether polyol n210, hydrophilic polyether polyol 330 and hydrophilic polyether polyol 4110 in any proportion; the emulsifying active agent is one or a mixture of a plurality of polyoxyethylene sorbitan monooleate, polyoxyethylene octyl phenol ether-10 and sorbitan fatty acid ester in equal proportion; the cross-linking agent is toluene diisocyanate, diphenylmethane diisocyanate and polymethylene polyphenyl polyisocyanate with the mass ratio of 0.2: 0.4; the foaming agent is one or a mixture of more of n-pentane, isopentane, cyclopentane and monofluorodichloroethane in any proportion; the catalytic curing agent is inorganic acid and organic acid with the mass ratio of 1: 1; the inorganic acid is phosphoric acid; the organic acid is one or a mixture of more of p-toluenesulfonic acid, oxalic acid and adipic acid in any proportion; the fertilizer particles are hardened particles prepared by mixing, extruding and drying the compound fertilizer and the organic fertilizer in a mass ratio of 1: 1; the internal release agent is amino modified polysiloxane.
5. The method for preparing the foam matrix material special for cultivation as claimed in claim 3, wherein the method comprises the following steps: the plant growth regulator is any one of titanium citrate, gibberellin, brassin, diethyl aminoethyl hexanoate, naphthylacetic acid and gamma-polyglutamic acid, the microelement is equal proportion mixture of MnSO 4. H2O, ZnSO 4.7H2O and 98% ammonium molybdate, and the film-forming agent is at least one of polyvinyl alcohol, yellow collagen, sodium carboxymethylcellulose and polyacrylamide; the bactericide is any one of the botanical bactericides of the fenacet and the carbendazim.
6. The method for cultivating plants by using the special foaming matrix material for cultivation in claim 1, comprising the following steps:
1) scooping moss from the surface of the shady and cool wetland;
2) the moss is rinsed by water gently to remove silt, and then the moss is mixed with rice washing water, expired milk and soybean milk in equal proportion and poured into a soybean milk machine to be stirred rapidly to prepare moss soybean milk;
3) pouring the moss soymilk into a container, and dipping the moss soymilk by a brush to uniformly brush the moss soymilk on the surface of the special foaming matrix material for cultivation or spraying the moss soymilk on the surface of the special foaming matrix material for cultivation until the moss soymilk on the surface is uniformly full;
4) spraying water mist after the surface of the special foaming matrix material for cultivation is slightly dry, and spraying water mist in the morning and evening every day to ensure that the surface of the special foaming matrix material for cultivation is wet, so that moss can grow after 3 days, and the surface of the special foaming matrix material is full of moss after one week, and the water mist is sprayed in the morning and evening to keep the leaf surfaces of the moss wet, so that the moss grows vigorously and the growth period is prolonged.
7. The method for cultivating plants by using the special foaming matrix material for cultivation in claim 2, comprising the following steps:
1) placing the special cultivation foaming matrix material in the sun, and spraying clear water for the first time until water seeps out of the bottom of the special cultivation foaming matrix material;
2) spraying water mist once a day to moisten the surface of the special foaming matrix material for cultivation;
3) after the seeds of the coated plants germinate, a sunshade net is built above the special cultivation foaming matrix material, so that the seedlings can complete photosynthesis under the irradiation of scattered sunlight, and fertilizer particles in the special cultivation foaming matrix material slowly release nutrition to enable the seedlings to grow quickly;
4) after the root system of the seedling normally develops, under the action of a plant growth regulator and trace elements in the cracked seed coating, the plant is promoted to reach a vigorous growth period, and then water is sprayed on the leaf surface and the surface of the special foaming matrix material for cultivation every three days.
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| CN202010187197.XA CN111387016B (en) | 2020-03-17 | 2020-03-17 | Preparation method of special foam matrix material for cultivation and cultivation method |
| AU2020102256A AU2020102256A4 (en) | 2020-03-17 | 2020-09-15 | Method for preparing cultivation-specific foamed substrate material, and cultivation method |
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| CN113336311A (en) * | 2021-06-03 | 2021-09-03 | 华设设计集团环境科技有限公司 | Efficient nitrogen and phosphorus removal porous filler and preparation method thereof |
| CN113575358B (en) * | 2021-08-19 | 2023-10-20 | 深圳市南方卉谷科技有限公司 | Ingredients of planting matrix and preparation method thereof |
| CN114365673A (en) * | 2022-02-21 | 2022-04-19 | 中国林业科学研究院生态保护与修复研究所 | Preparation method of composite organic high water-holding culture substrate material |
| CN114793864A (en) * | 2022-05-10 | 2022-07-29 | 广东省农业科学院环境园艺研究所 | Soilless cultivation method for mosses |
| CN114805732B (en) * | 2022-06-11 | 2023-08-01 | 山东雷德新材料有限公司 | Preparation method of biodegradable polyurethane foaming material |
| CN116905124B (en) * | 2023-07-05 | 2024-02-27 | 南京林业大学 | Preparation method of bio-based liquefied resin nano composite fiber membrane material |
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| US6479433B1 (en) * | 2000-10-02 | 2002-11-12 | Smithers-Oasis Company | Polyurethane foam composites for grower applications and related methods |
| US20030140553A1 (en) * | 2002-01-30 | 2003-07-31 | Don Moore | Artificial seedbeds and method for making same |
| US7739833B2 (en) * | 2006-02-10 | 2010-06-22 | Ramsey W Gene | Foamed vitroeous materials for agricultural applications |
| CN102617883B (en) * | 2012-02-28 | 2013-09-25 | 浙江省林业科学研究院 | Method for preparing foaming material by adopting bamboo liquefied product |
| EP2730596A1 (en) * | 2012-11-13 | 2014-05-14 | Basf Se | Polyurethane soft foam materials containing plant seeds |
| CN103483613A (en) * | 2013-09-26 | 2014-01-01 | 临沂市泰尔化工科技有限公司 | Preparation method for degradable urea formaldehyde foam plant culture substrate |
| CN103992497B (en) * | 2014-04-22 | 2016-07-13 | 南京林业大学 | Utilize the method that natural fiber biological material prepares biomass-based foamed materials |
| CN105461885B (en) * | 2015-11-11 | 2018-02-09 | 钟哲科 | A kind of charcoal compound polyurethane material for plant cultivation |
| CN105900808A (en) * | 2016-04-25 | 2016-08-31 | 北京克林纳奇新材料科技有限公司 | Environment-friendly light porous simulated soil cultivation medium body and preparation method thereof |
| CN105830801A (en) * | 2016-04-26 | 2016-08-10 | 山东商道生物科技有限公司 | Mixed resin cultivating and seedling-raising medium |
| CN107182735B (en) * | 2017-04-27 | 2019-10-25 | 江西九草铁皮石斛科技协同创新有限公司 | A kind of method for culturing seedlings and cultural method of live streaming formula dendrobium candidum |
| CN109169176A (en) * | 2018-08-28 | 2019-01-11 | 河南云帮农业科技有限公司 | A kind of seed mix of bletilla striata seeds live streaming |
| CN108849384B (en) * | 2018-09-21 | 2021-03-16 | 广东工业大学 | Soilless culture substrate and preparation method thereof |
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