CN115735716A - Culture medium and preparation method thereof - Google Patents
Culture medium and preparation method thereof Download PDFInfo
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- CN115735716A CN115735716A CN202211471749.5A CN202211471749A CN115735716A CN 115735716 A CN115735716 A CN 115735716A CN 202211471749 A CN202211471749 A CN 202211471749A CN 115735716 A CN115735716 A CN 115735716A
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- chinese torreya
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- buffer solution
- shells
- culture medium
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- 239000001963 growth medium Substances 0.000 title claims abstract description 41
- 238000002360 preparation method Methods 0.000 title claims abstract description 38
- 240000000147 Torreya grandis Species 0.000 claims abstract description 90
- 235000016410 Torreya grandis Nutrition 0.000 claims abstract description 90
- 239000002245 particle Substances 0.000 claims abstract description 56
- 239000000758 substrate Substances 0.000 claims abstract description 41
- BHZOKUMUHVTPBX-UHFFFAOYSA-M sodium acetic acid acetate Chemical compound [Na+].CC(O)=O.CC([O-])=O BHZOKUMUHVTPBX-UHFFFAOYSA-M 0.000 claims abstract description 31
- 239000003337 fertilizer Substances 0.000 claims abstract description 26
- 241000609240 Ambelania acida Species 0.000 claims abstract description 22
- 239000010905 bagasse Substances 0.000 claims abstract description 22
- 239000010451 perlite Substances 0.000 claims abstract description 22
- 235000019362 perlite Nutrition 0.000 claims abstract description 22
- 239000002994 raw material Substances 0.000 claims abstract description 22
- 229910052902 vermiculite Inorganic materials 0.000 claims abstract description 22
- 239000010455 vermiculite Substances 0.000 claims abstract description 22
- 235000019354 vermiculite Nutrition 0.000 claims abstract description 22
- 239000007853 buffer solution Substances 0.000 claims abstract description 16
- 238000004519 manufacturing process Methods 0.000 claims abstract description 4
- 239000000243 solution Substances 0.000 claims description 32
- 239000007974 sodium acetate buffer Substances 0.000 claims description 30
- 239000000843 powder Substances 0.000 claims description 24
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 22
- 238000002156 mixing Methods 0.000 claims description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 18
- 238000001035 drying Methods 0.000 claims description 15
- 238000002791 soaking Methods 0.000 claims description 13
- 238000001125 extrusion Methods 0.000 claims description 12
- 238000012216 screening Methods 0.000 claims description 11
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 claims description 8
- 229960000583 acetic acid Drugs 0.000 claims description 8
- 239000001632 sodium acetate Substances 0.000 claims description 8
- 235000017281 sodium acetate Nutrition 0.000 claims description 8
- 239000012362 glacial acetic acid Substances 0.000 claims description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract description 8
- 238000004064 recycling Methods 0.000 abstract description 4
- 230000012010 growth Effects 0.000 abstract description 2
- 240000007594 Oryza sativa Species 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 30
- 241000209094 Oryza Species 0.000 description 8
- 235000007164 Oryza sativa Nutrition 0.000 description 8
- 235000009566 rice Nutrition 0.000 description 8
- 239000010902 straw Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 239000003814 drug Substances 0.000 description 2
- 238000009331 sowing Methods 0.000 description 2
- 244000012254 Canarium album Species 0.000 description 1
- 235000009103 Canarium album Nutrition 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 244000068645 Carya illinoensis Species 0.000 description 1
- 235000009025 Carya illinoensis Nutrition 0.000 description 1
- 241000007126 Codonopsis pilosula Species 0.000 description 1
- 241000195493 Cryptophyta Species 0.000 description 1
- 241001523681 Dendrobium Species 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 244000062748 Eupatorium adenophorum Species 0.000 description 1
- 244000303040 Glycyrrhiza glabra Species 0.000 description 1
- 235000006200 Glycyrrhiza glabra Nutrition 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 238000010564 aerobic fermentation Methods 0.000 description 1
- 229930013930 alkaloid Natural products 0.000 description 1
- 150000003797 alkaloid derivatives Chemical class 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- LPLVUJXQOOQHMX-QWBHMCJMSA-N glycyrrhizinic acid Chemical compound O([C@@H]1[C@@H](O)[C@H](O)[C@H](O[C@@H]1O[C@@H]1C([C@H]2[C@]([C@@H]3[C@@]([C@@]4(CC[C@@]5(C)CC[C@@](C)(C[C@H]5C4=CC3=O)C(O)=O)C)(C)CC2)(C)CC1)(C)C)C(O)=O)[C@@H]1O[C@H](C(O)=O)[C@@H](O)[C@H](O)[C@H]1O LPLVUJXQOOQHMX-QWBHMCJMSA-N 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000003864 humus Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 235000011477 liquorice Nutrition 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229940050561 matrix product Drugs 0.000 description 1
- 239000002609 medium Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000008635 plant growth Effects 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229910052711 selenium Inorganic materials 0.000 description 1
- 239000011669 selenium Substances 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- 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
Landscapes
- Cultivation Of Plants (AREA)
Abstract
The invention belongs to the technical field of seedling raising substrates, and particularly relates to a culture medium and a manufacturing method thereof. The invention provides a cultivation substrate and a preparation method thereof, aiming at the problem of recycling Chinese torreya shells in the prior art, wherein the cultivation substrate comprises the Chinese torreya shells, vermiculite particles, perlite, bagasse, a buffer solution and a particle slow-release fertilizer. The invention successfully provides a culture medium using Chinese torreya shells as a main raw material, realizes resource recycling of the Chinese torreya shells, and simultaneously, compared with the scheme of using sulfuric acid to acidify and neutralize alkalinity in the prior art, the invention uses acetic acid-sodium acetate as a buffer solution, and is more suitable for the growth of rice plants.
Description
Technical Field
The invention relates to the technical field of seedling culture substrates, in particular to a culture substrate and a manufacturing method thereof.
Background
Chinese torreya needs to be subjected to a plurality of processes such as peeling, piling, drying in the sun, frying and the like from Chinese olive to dry fruit, while the Chinese torreya green coat shell which is peeled in the past is mostly abandoned as agricultural garbage, which causes environmental pollution. Therefore, how to recycle the Chinese torreya shells into resources is one of the problems to be solved in the prior art.
The use of such hulls as a substrate material for growing seedlings is one of the commonly used ways for recycling, and for example, the preparation of a rice seedling substrate from pecan shells is well documented in the prior art. However, researches show that the Chinese torreya shells are used as seedling raising substrates, the Chinese torreya shells are soft in texture and easy to collapse, and a large amount of alkaloid is contained in the Chinese torreya shells, which are two main reasons for preventing the Chinese torreya shells from being applied to the seedling raising substrates on a large scale.
For example, the chinese invention patent application discloses a rice seedling raising substrate [ application No.: 201510925518.0], the invention patent application comprises the following components: 15-25 parts of sieved algae mud charcoal soil, 5-12 parts of rice chaff carbon, 5-12 parts of deep mountain humus, 8-16 parts of selenium-rich mineral substances, 6-16 parts of decomposed straw powder and 5-12 parts of traditional Chinese medicine residues; the traditional Chinese medicine residues are a mixture of pine needles, radix stemonae, eupatorium adenophorum, dendrobium, liquorice and codonopsis pilosula, and are subjected to high-temperature aerobic fermentation treatment, and the thoroughly decomposed straw powder is prepared by drying fresh straws, crushing into 1-2mm thoroughly decomposed straw powder, watering, covering with a plastic film, preserving moisture, stacking at the ambient temperature of 20-35 ℃ in the sun, and fermenting until all the straws become brownish black.
The invention has the advantages of proper matrix component proportion, excellent physicochemical property, good permeability and strong water and fertilizer retention capacity, can meet the requirements of oxygen, nutrition and moisture required by seedlings, but cannot reasonably and effectively apply the Chinese torreya shells.
Disclosure of Invention
The invention aims to solve the problems and provides a culture medium taking Chinese torreya shells as a main raw material.
Another object of the present invention is to provide a method for preparing a cultivation substrate using torreya grandis shells as a main raw material.
The purpose of the invention is realized by the following technical scheme:
a culture medium comprises Chinese torreya shells, vermiculite particles, perlite, bagasse, buffer solution and particle slow release fertilizer.
In the culture medium, the culture medium comprises 80-120 parts by weight of Chinese torreya shells, 10-30 parts by weight of vermiculite particles, 10-20 parts by weight of perlite, 2-6 parts by weight of bagasse, 8-12 parts by weight of buffer solution and 0.15-0.25 part by weight of particle slow release fertilizer.
In the above culture substrate, the: the culture medium comprises, by mass, 100 parts of Chinese torreya shells, 20 parts of vermiculite particles, 15 parts of perlite, 4 parts of bagasse, 10 parts of buffer solution and 0.2 part of particle slow release fertilizer.
In the culture medium, the buffer solution is acetic acid-sodium acetate buffer solution.
In the culture medium, the acetic acid-sodium acetate buffer solution is prepared by the following method: taking 18g of sodium acetate and 9.8ml of glacial acetic acid, and adding water to dilute to 1000ml to obtain an acetic acid-sodium acetate buffer solution.
A preparation method of a culture medium comprises the following steps:
the method comprises the following steps: collecting and drying the Chinese torreya shell raw material;
step two: crushing the dried Chinese torreya shell raw material by using a crusher, extruding by using a screw rod, and screening to obtain Chinese torreya shell powder;
step three: mixing Chinese torreya shell powder with acetic acid-sodium acetate buffer solution, and soaking;
step four: then adding perlite, vermiculite particles, bagasse and particle slow-release fertilizer, uniformly mixing, and carrying out screw extrusion forming to obtain the culture medium.
In the preparation method of the culture medium, after drying in the first step, the water content of the Chinese torreya shell raw material is less than 20%.
In the preparation method of the culture medium, the particle size of the Chinese torreya shells selected in the step two is 2-20mm.
In the preparation method of the culture medium, the pH value of the acetic acid-sodium acetate buffer solution in the third step is 4-5.
In the preparation method of the culture medium, the soaking time in the third step is 20-40min.
Compared with the prior art, the invention has the advantages that:
1. the invention successfully provides a cultivation medium using Chinese torreya shells as a main raw material, and realizes resource recycling of the Chinese torreya shells.
2. Compared with the scheme of using sulfuric acid to acidify and neutralize alkalinity in the prior art, the method is more suitable for plant growth.
3. According to the invention, a screw extrusion technology is adopted to extrude the Chinese torreya shell hulls, so that the material is more compact and is not easy to enter water, thus the decomposition of the Chinese torreya shell hulls is reduced, and the durability of the material is improved. And vermiculite particles, perlite, bagasse and other materials which are not easy to degrade are added, so that the practicability of the whole matrix product is enhanced.
Detailed Description
The present invention will be described in further detail with reference to specific embodiments.
Example 1
The embodiment provides a culture medium which comprises, by mass, 80 parts of Chinese torreya shells, 30 parts of vermiculite particles, 20 parts of perlite, 6 parts of bagasse, 12 parts of acetic acid-sodium acetate buffer solution and 0.25 part of particle slow-release fertilizer.
Wherein, the acetic acid-sodium acetate buffer solution can adopt the preparation method of the commonly prepared buffer solution in the prior art, namely the preparation method of taking acetic acid and sodium acetate with a certain proportion in a container and adding water to dilute to the preset concentration.
Example 2
The embodiment provides a culture medium which comprises, by mass, 120 parts of Chinese torreya shells, 10 parts of vermiculite particles, 10 parts of perlite, 2 parts of bagasse, 8 parts of acetic acid-sodium acetate buffer solution and 0.15 part of particle slow-release fertilizer.
Wherein, the acetic acid-sodium acetate buffer solution can adopt the preparation method of the commonly prepared buffer solution in the prior art, namely the preparation method of taking acetic acid and sodium acetate with a certain proportion in a container and adding water to dilute to the preset concentration.
Example 3
The embodiment provides a culture medium which comprises, by mass, 100 parts of Chinese torreya shells, 20 parts of vermiculite particles, 15 parts of perlite, 4 parts of bagasse, 10 parts of acetic acid-sodium acetate buffer solution and 0.2 part of particle slow release fertilizer.
Wherein, the acetic acid-sodium acetate buffer solution can adopt the preparation method of the commonly prepared buffer solution in the prior art, namely the preparation method of taking acetic acid and sodium acetate with a certain proportion in a container and adding water to dilute to the preset concentration.
Example 4
The embodiment provides a preparation method of a culture substrate, which comprises the following steps:
the method comprises the following steps: collecting Chinese torreya shell raw material and drying until the water content is less than 20%;
step two: selecting Chinese torreya shells with the particle size of 2-20mm, crushing the dried Chinese torreya shells by using a crusher, extruding by using a screw rod, and screening to obtain Chinese torreya shell powder;
step three: mixing Chinese torreya shell powder with acetic acid-sodium acetate buffer solution with pH of 4, and soaking for 20min; in the embodiment, the particle diameter of the Chinese torreya shell powder is 20-100 meshes, preferably 80 meshes, and the following steps are carried out;
step four: then adding perlite, vermiculite particles, bagasse and granular slow-release fertilizer, uniformly mixing, and performing screw extrusion forming to obtain granules with the grain diameter of 2-5mm to obtain the culture medium.
Example 5
The embodiment provides a preparation method of a culture medium, which comprises the following steps:
the method comprises the following steps: collecting Chinese torreya shell raw material and drying until the water content is less than 20%;
step two: selecting Chinese torreya shells with the particle size of 2-20mm, crushing the dried Chinese torreya shell raw material by using a crusher, extruding by using a screw rod, and screening to obtain Chinese torreya shell powder;
step three: mixing Torreya grandis shell powder with acetic acid-sodium acetate buffer solution with pH of 5, and soaking for 40min;
step four: then adding perlite, vermiculite particles, bagasse and particle slow-release fertilizer, uniformly mixing, and carrying out screw extrusion forming to obtain the culture medium.
Example 6
The embodiment provides a preparation method of a culture medium, which comprises the following steps:
the method comprises the following steps: collecting Chinese torreya shell raw material and drying until the water content is less than 20%;
step two: selecting Chinese torreya shells with the particle size of 2-20mm, crushing the dried Chinese torreya shells by using a crusher, extruding by using a screw rod, and screening to obtain Chinese torreya shell powder;
step three: mixing Chinese torreya shell powder with acetic acid-sodium acetate buffer solution with pH of 4.5, and soaking for 30min;
step four: then adding perlite, vermiculite particles, bagasse and particle slow-release fertilizer, uniformly mixing, and carrying out screw extrusion forming to obtain the culture medium.
Comparative example 1
The comparative example provides a culture substrate which comprises 100 parts by mass of Chinese torreya shells, 10 parts by mass of acetic acid-sodium acetate buffer solution and 0.2 part by mass of granular slow release fertilizer.
Wherein, the acetic acid-sodium acetate buffer solution can adopt the preparation method of the commonly prepared buffer solution in the prior art, namely the preparation method of taking acetic acid and sodium acetate with a certain proportion in a container and adding water to dilute to the preset concentration.
Comparative example 2
The comparative example provides a culture medium which comprises 100 parts of Chinese torreya shells, 20 parts of vermiculite particles, 15 parts of perlite, 10 parts of acetic acid-sodium acetate buffer solution and 0.2 part of particle slow release fertilizer in parts by mass.
Wherein, the acetic acid-sodium acetate buffer solution can adopt the preparation method of the commonly prepared buffer solution in the prior art, namely the preparation method of taking acetic acid and sodium acetate with a certain proportion in a container and adding water to dilute to the preset concentration.
Comparative example 3
The comparative example provides a culture medium which comprises 100 parts by weight of Chinese torreya shells, 4 parts by weight of bagasse, 10 parts by weight of acetic acid-sodium acetate buffer solution and 0.2 part by weight of particle slow-release fertilizer.
Wherein, the acetic acid-sodium acetate buffer solution can adopt the preparation method of the commonly prepared buffer solution in the prior art, namely the preparation method of taking acetic acid and sodium acetate with a certain proportion in a container and adding water to dilute to the preset concentration.
Comparative example 4
The comparative example provides a culture medium which comprises 100 parts by mass of Chinese torreya shells, 20 parts by mass of vermiculite particles, 15 parts by mass of perlite, 4 parts by mass of bagasse, 10 parts by mass of 12% dilute sulfuric acid solution and 0.2 part by mass of particle slow-release fertilizer.
Comparative example 5
The comparative example provides a preparation method of a culture substrate, comprising the following steps:
the method comprises the following steps: collecting Chinese torreya shell raw material and drying until the water content is less than 20%;
step two: selecting Chinese torreya shells with the particle size of 2-20mm, crushing the dried Chinese torreya shells by using a crusher, extruding by using a screw rod, and screening to obtain Chinese torreya shell powder;
step three: mixing Chinese torreya shell powder with acetic acid-sodium acetate buffer solution with pH of 4.5, and soaking for 30min;
step four: and adding the granular slow release fertilizer, uniformly mixing, and performing screw extrusion forming to obtain the culture medium.
Comparative example 6
The comparative example provides a preparation method of a culture substrate, comprising the following steps:
the method comprises the following steps: collecting Chinese torreya shell raw material and drying until the water content is less than 20%;
step two: selecting Chinese torreya shells with the particle size of 2-20mm, crushing the dried Chinese torreya shell raw material by using a crusher, extruding by using a screw rod, and screening to obtain Chinese torreya shell powder;
step three: mixing Chinese torreya shell powder with acetic acid-sodium acetate buffer solution with pH of 4.5, and soaking for 30min;
step four: and adding perlite, vermiculite particles and particle slow-release fertilizer, uniformly mixing, and performing screw extrusion forming to obtain the culture medium.
Comparative example 7
The comparative example provides a preparation method of a culture substrate, comprising the following steps:
the method comprises the following steps: collecting Chinese torreya shell raw material and drying until the water content is less than 20%;
step two: selecting Chinese torreya shells with the particle size of 2-20mm, crushing the dried Chinese torreya shells by using a crusher, extruding by using a screw rod, and screening to obtain Chinese torreya shell powder;
step three: mixing Chinese torreya shells with acetic acid-sodium acetate buffer solution with pH of 4.5, and soaking for 30min;
step four: and adding bagasse and the granular slow-release fertilizer, uniformly mixing, and performing screw extrusion molding to obtain the culture medium.
Comparative example 8
The comparative example provides a preparation method of a culture substrate, comprising the following steps:
the method comprises the following steps: collecting Chinese torreya shell raw material and drying until the water content is less than 20%;
step two: selecting Chinese torreya shells with the particle size of 2-20mm, crushing the dried Chinese torreya shells by using a crusher, extruding by using a screw rod, and screening to obtain Chinese torreya shell powder;
step three: adding 12% dilute sulfuric acid solution into the Chinese torreya shells, mixing until the pH value is adjusted to 4.5, and soaking for 30min;
step four: then adding perlite, vermiculite particles, bagasse and particle slow-release fertilizer, uniformly mixing, and carrying out screw extrusion forming to obtain the culture medium.
Comparative example 9
The comparative example provides a preparation method of a culture substrate, comprising the following steps:
the method comprises the following steps: collecting Chinese torreya shell raw material and drying until the water content is less than 20%;
step two: selecting Chinese torreya shells with the particle size of more than 40mm, crushing the dried Chinese torreya shell raw material by using a crusher, extruding by using a screw rod, and screening to obtain Chinese torreya shell powder;
step three: mixing Chinese torreya shell powder with acetic acid-sodium acetate buffer solution with pH of 4.5, and soaking for 30min;
step four: then adding perlite, vermiculite particles, bagasse and particle slow-release fertilizer, uniformly mixing, and performing screw extrusion forming to obtain the culture medium.
Comparative example 10
The comparative example provides a preparation method of a culture substrate, comprising the following steps:
the method comprises the following steps: collecting Chinese torreya shell raw material and drying until the water content is less than 20%;
step two: selecting Chinese torreya shells with the particle size of less than 1mm, selecting Chinese torreya shells with the particle size of more than 40mm, crushing the dried Chinese torreya shells by using a crusher, extruding by using a screw rod, and screening to obtain Chinese torreya shell powder;
step three: mixing Chinese torreya shell powder with acetic acid-sodium acetate buffer solution with pH of 4.5, and soaking for 30min;
step four: then adding perlite, vermiculite particles, bagasse and particle slow-release fertilizer, uniformly mixing, and carrying out screw extrusion forming to obtain the culture medium.
Application example 1
A culture substrate 1 was prepared by the preparation method described in example 6 using the culture substrate described in example 3;
a culture substrate 2 was prepared by the preparation method described in comparative example 5 using the culture substrate described in comparative example 1;
a culture substrate 3 was prepared by the preparation method described in comparative example 6 using the culture substrate described in comparative example 2;
a culture substrate 4 was prepared by the preparation method described in comparative example 7 using the culture substrate described in comparative example 3;
a culture substrate 5 was prepared by the preparation method described in comparative example 8 using the culture substrate described in comparative example 4;
a culture substrate 6 was prepared by the preparation method described in comparative example 9 using the culture substrate described in example 3;
a culture substrate 7 was prepared by the preparation method described in comparative example 10 using the culture substrate described in example 3;
the rice seedling raising simulation is realized by sowing the rice on the plastic hard disks, and the culture mediums 1-7 with equal mass are respectively filled into seven plastic hard disks with the same size and are paved. The same batch of rice seeds are equally divided into seven parts, respectively sowed into plastic hard disks filled with culture mediums 1-7, and placed into an illumination incubator for culture under the same culture conditions. After 30 days of sowing, the plant height, above-ground dry weight and underground dry weight of rice were measured and averaged, and the results are shown in the following table:
and (4) analyzing results: from the above experimental results, it can be seen that the growth momentum of rice in the plastic hard disk using the substrate 1 is the most favorable, and thus the intended object of the present invention is achieved.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (10)
1. A culture medium comprises Chinese torreya shells, and is characterized in that: also comprises vermiculite particles, perlite, bagasse, buffer solution and particle slow release fertilizer.
2. The culture substrate according to claim 1, wherein: the culture medium comprises 80-120 parts by weight of Chinese torreya shells, 10-30 parts by weight of vermiculite particles, 10-20 parts by weight of perlite, 2-6 parts by weight of bagasse, 8-12 parts by weight of buffer solution and 0.15-0.25 part by weight of particle slow release fertilizer.
3. The culture substrate according to claim 2, wherein: the following steps: the culture medium comprises, by mass, 100 parts of Chinese torreya shells, 20 parts of vermiculite particles, 15 parts of perlite, 4 parts of bagasse, 10 parts of buffer solution and 0.2 part of particle slow-release fertilizer.
4. The culture substrate according to claim 1, wherein: the buffer solution is acetic acid-sodium acetate buffer solution.
5. The culture substrate according to claim 4, wherein: the acetic acid-sodium acetate buffer solution is prepared by the following method: taking 18g of sodium acetate and 9.8ml of glacial acetic acid, and adding water to dilute to 1000ml to obtain an acetic acid-sodium acetate buffer solution.
6. The preparation method of the culture medium is characterized by comprising the following steps:
the method comprises the following steps: collecting Chinese torreya shell raw material and drying;
step two: crushing the dried Chinese torreya shell raw material by using a crusher, extruding by using a screw rod, and screening to obtain Chinese torreya shell powder; (ii) a
Step three: mixing Chinese torreya shell powder with acetic acid-sodium acetate buffer solution, and soaking;
step four: then adding perlite, vermiculite particles, bagasse and particle slow-release fertilizer, uniformly mixing, and performing screw extrusion forming to obtain the culture medium.
7. The method for preparing a culture medium according to claim 6, wherein: after drying in the step one, the water content of the Chinese torreya shell raw material is less than 20%.
8. The method for preparing a culture medium according to claim 6, wherein: the particle size of the Chinese torreya shells selected in the step two is 2-20mm.
9. The method for producing a culture substrate according to claim 6, wherein: the pH value of the acetic acid-sodium acetate buffer solution in the third step is 4-5.
10. The method for producing a culture substrate according to claim 6, wherein: the soaking time in the third step is 20-40min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202211471749.5A CN115735716A (en) | 2022-11-23 | 2022-11-23 | Culture medium and preparation method thereof |
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| CN202211471749.5A CN115735716A (en) | 2022-11-23 | 2022-11-23 | Culture medium and preparation method thereof |
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| CN115735716A true CN115735716A (en) | 2023-03-07 |
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| CN202211471749.5A Pending CN115735716A (en) | 2022-11-23 | 2022-11-23 | Culture medium and preparation method thereof |
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Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103004520A (en) * | 2012-12-25 | 2013-04-03 | 浙江省农业科学院 | Rice seedling culture medium prepared by using hickory shell and preparation method of rice seedling culture medium |
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