CN104012386B - A kind of preparation method of the nursery soil without soil-borne disease - Google Patents
A kind of preparation method of the nursery soil without soil-borne disease Download PDFInfo
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- CN104012386B CN104012386B CN201410273203.8A CN201410273203A CN104012386B CN 104012386 B CN104012386 B CN 104012386B CN 201410273203 A CN201410273203 A CN 201410273203A CN 104012386 B CN104012386 B CN 104012386B
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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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
Abstract
The preparation method that the present invention relates to a kind of nursery without soil-borne disease soil, this preparation method includes preparation, regulates the steps such as water content and fermentation。The raw material of preparation method of the present invention is easy to get, and processing technique is simple, mild condition, it is possible to fully kill harmful pathogenic microorganisms, it is thus achieved that without soil-borne disease nursery soil, significantly alleviating the impact of pest and disease damage, thus significantly improving the growing environment of crop, crop sickness rate significantly reduces。
Description
[technical field]
The invention belongs to stock growing technical field。More particularly it relates to an without the preparation method of soil-borne disease nursery soil。
[background technology]
Soil-borne disease refers to the disease that the pathogen of survival is encroached on crop from crop root or stem and caused under appropriate conditions in soil。Common soil-borne disease has Fructus Capsici, Fructus Solani melongenae, Fructus Cucumidis sativi damping off, damping-off, epidemic disease, root rot, withered (Huang) to wither disease；Fructus Lycopersici esculenti, Fructus Capsici bacterial wilt；Soft rot of Chinese cabbage；Brassica campestris L, Caulis et Folium Lactucae sativae sclerotiniose；Take-all；Cotton seedling blight, red rot, verticillium wilt and nematicide etc.。In growth early stage once there is soil-borne disease in crop, seedling root rot or stem rot is rotten dampings off, seedling will soon be dead, has a strong impact on crop production。When there is disease at later stages in crop, general time underproduction 20-30%, serious time underproduction 50-60%, even has no harvest。Soil-borne disease is just difficult to prevent and treat once morbidity。Pathogenic bacteria is ensconced to survive the winter in soil and is difficult to be killed, and continues infringement crop the coming year, so circulates, and disease is increasingly severe。
At present, chemical method preventing and treating soil-borne disease is generally adopted, for instance adopt the soil fumigants such as Celfume；The soil sterilants such as D-D Emulsion, formalin, dazomet；The soil fungicides such as benomyl, carbendazim, thiophanate methyl, pentachloronitrobenzene, but chemical prevention is except eliminating pathogen, and soil beneficial microbe is also killed or inhibitory action。Additionally, pentachloronitrobenzenes etc. also have it to have the technological deficiencies such as carcinogenic and high residue。
For preventing and treating the soil-borne disease in seedling stage, frequently with the method for non-soil culture, namely often select the peat composed of rotten mosses, Vermiculitum or perlite etc. as the dispensing of seedling medium。But non-soil culture is relatively costly, the peat composed of rotten mosses has become as restricted production of resources in addition, constrains the promotion and application of non-soil culture。
For killing pathogen in soil and worm's ovum, avoid the generation of soil-borne disease in seedling stage, the present invention selects active substance fresh food bacterium mushroom bran and cattle manure, after adjusting the moisture content of fresh food bacterium mushroom bran, proportioning between cattle manure and garden mould and mixture, collect together heap to become thoroughly decomposed, technique of becoming thoroughly decomposed makes heap body mixture realize lasting heating and high temperature (more than 55 DEG C), also makes the pathogen in garden mould and worm's ovum be killed。
Needs particularly point out, and generally select feces of livestock and poultry, mushroom bran and soil etc. as raw material when producing fertilizer, but feces of livestock and poultry is major ingredient。Fertilizer has a strong impact on emergence rate because soil conductivity (EC characterizes the index of salt) is high, it is impossible to for nursery。Its salt content is more much lower than feces of livestock and poultry on the one hand for mushroom bran, and its cation exchange total amount (CEC) value is high on the other hand, and the salt so in seedling raising process, feces of livestock and poultry contained also has certain cushioning effect。
China has the research utilizing edible fungus bran for development of raw materials seedling medium, such as CN102077779A discloses composite vegetable soilless raising seedling substrate of a kind of Volvariella volvacea (Bull.Ex Franch.) Singer． slag and preparation method thereof, the method utilizes the Volvariella volvacea (Bull.Ex Franch.) Singer． slag that becomes thoroughly decomposed, Vermiculitum to mix by a certain percentage with coconut palm bran, prepares unit weight and is about 0.5g/cm3Vegetable nursery soilless substrate。CN101433176A disclose with mushroom slag be raw material seedling medium and manufacture method, the method utilizes mushroom slag, Vermiculitum, perlite and fermentation assistant to prepare seedling medium。CN200410097202 discloses a kind of organic substrate formula for soilless cultivating tomato and compound method thereof, and the method utilizes fermentation mushroom slag to mix with peat 4:1 by volume and prepares organic composite substratd。Above-mentioned three patent applications all belong to non-soil culture method。CN101544512A discloses the method that soil is spent in the preparation of a kind of edible fungus bran, edible fungus bran after drying and crushing is mixed by the method with garden mould, river sand and mountain mud, ferment 20～40 days at 25～35 DEG C, prepare and spend soil, but disclosed fermentation temperature is 25～35 DEG C, can not killing the pathogenic bacterium in garden mould, worm's ovum and grass seed, therefore, this method can not obtain the nursery soil without soil-borne disease。
In order to overcome prior art defect, the present inventor, summing up on the basis of prior art, by lot of experiments, completes the present invention finally。
[summary of the invention]
[solving the technical problem that]
The preparation method that it is an object of the invention to provide a kind of nursery without soil-borne disease soil。
[technical scheme]
The present invention is achieved through the following technical solutions。
The preparation method that the present invention relates to a kind of nursery soil without soil-borne disease。The step of this preparation method is as follows:
A, preparation
Fresh food bacterium mushroom bran, garden mould are mixed homogeneously according to stereometer 2～3.5:1～1.5:0.1～0.5 with cattle manure, obtains a kind of mixture；
B, adjustment water content
Water is added so that it is water content reaches with described mixture total weight gauge 55～65% in the step A mixture obtained；
C, fermentation
The mixture obtained by step B collects together into stockpile, allows it become thoroughly decomposed 38～42 days, obtains the described nursery soil without soil-borne disease。
A preferred embodiment of the invention, described fresh food bacterium mushroom bran is selected from Pleurotus ostreatus, Flammulina velutiper (Fr.) Sing, Pleurotus nebrodensis, Pleurotus eryngii or crab flavour mushroom domestomycetes mushroom bran。
Another kind of preferred implementation according to the present invention, the volume ratio of fresh food bacterium mushroom bran, garden mould and cattle manure is 2.4～3.0:1.2～1.4:0.2～0.4。
Another kind of preferred implementation according to the present invention, the granularity of described edible fungus bran, garden mould and cattle manure is 2～6mm。
Another kind of preferred implementation according to the present invention, described stockpile is cuboid。
Another kind of preferred implementation according to the present invention, the ratio of the width of described stockpile and height is 1.2:0.65～0.75。
Another kind of preferred implementation according to the present invention, just carries out turning, to reduce the temperature of its material when the temperature of charge of described stockpile reaches more than 70 DEG C。
Another kind of preferred implementation according to the present invention, the temperature of charge of the described stockpile time of becoming thoroughly decomposed when 55～70 DEG C is more than 15 days。
The present invention is described in more detail below。
The preparation method that the present invention relates to a kind of nursery soil without soil-borne disease。The step of this preparation method is as follows:
A, preparation
Fresh food bacterium mushroom bran, garden mould are mixed homogeneously according to stereometer 2～3.5:1～1.5:0.1～0.5 with cattle manure, obtains a kind of mixture。
According to the present invention, fresh food bacterium mushroom bran it should be understood that use the industrial waste raw material production edible fungi such as agricultural crop straw and distiller grains, vinegar, paper mill effluent and pharmaceutical factory's Huang pulp waste such as cotton seed hulls, wood sawdust, Caulis et Folium Oryzae, corn cob or bagasse, the culture medium residue obtained after results edible fungi。
In the present invention, described fresh food bacterium mushroom bran is selected from Pleurotus ostreatus, Flammulina velutiper (Fr.) Sing, Pleurotus nebrodensis, Pleurotus eryngii or crab flavour mushroom domestomycetes mushroom bran。
According to the present invention, described garden mould is it should be understood that a kind of common cultivation soil, and because of farming of often applying fertilizer, fertility is higher, and crumb structure is good, is one of primary raw material preparing compost。
Described edible fungus bran, garden mould and cattle manure need before use to carry out pulverizing and sieve, and make their granularity reach 2～8mm。Pulverizing, screening or mixing apparatus that the present invention uses are all normally used pulverizing, screening or mixing apparatus in the art, the pulverizer such as sold with trade name vertical hammer piece type crusher by sincere Machinery Manufacturing Co., Ltd. of Zhengzhou City one, the screening plant sold with trade name GS1*3.0 type screen-dividing machine by Hebi City flourishing age Machinery Manufacturing Co., Ltd. of Henan Province, Shanghai Shi He mechanical & electronic equipment corporation, Ltd the mixing apparatus sold with the horizontal Agravicmixer of trade name。
Preferably, the volume ratio of fresh food bacterium mushroom bran, garden mould and cattle manure is 2.4～3.0:1.2～1.4:0.2～0.4。
B, adjustment water content
Water is added so that it is water content reaches with described mixture total weight gauge 55～65% in the step A mixture obtained；
According to the present invention, when the water content of described edible fungus bran, garden mould and cattle manure mixture is lower than 55%, then can affect the normal physiological activity of microorganism in default of moisture, and then affect the fermentation of becoming thoroughly decomposed of mixture；When the water content of described edible fungus bran, garden mould and cattle manure mixture is higher than 65%, then can be too much because of water content, and cause the anoxia of microorganism in heap body, also can affect the effect of fermentation of becoming thoroughly decomposed。Therefore, the water content of described edible fungus bran, garden mould and cattle manure mixture is 55～65% is suitable, it is preferred that 56～62%, it is more preferred to be 58～60%。
C, fermentation
The mixture obtained by step B collects together into stockpile, allows it become thoroughly decomposed 38～42 days, obtains the described nursery soil without soil-borne disease。
In the present invention, described edible fungus bran, garden mould are collected together into the purpose of stockpile and are in that to be conducive to preserving and accumulation heat with cattle manure mixture, make heap body reach intended temperature and at high temperature keep the regular hour。
The stockpile collected together with cattle manure mixture by described edible fungus bran, garden mould is usually cuboid。When stockpile is cuboid, the ratio of the width of described stockpile and height is 1.2:0.65～0.75, and its length can be optional。
According to the present invention, if the ratio of the width of described stockpile and height is below 1.2:0.65, then can dispel the heat very fast, be not easy to keep higher temperature；If the ratio of the width of described stockpile and height is more than 1.2:0.75, then can because material stack volume is excessive, not easily turning operation, or cause part windrow for hypoxgia, and affect effect of becoming thoroughly decomposed.；Therefore, the ratio of the width of described stockpile and height is 1.2:0.65～0.75 is appropriate。
The stockpile collected together with cattle manure mixture by described edible fungus bran, garden mould can also be square, cylinder, cone or frustum of cone。
The stockpile collected together with cattle manure mixture by described edible fungus bran, garden mould notes observing its temperature of charge in digest process。Generally using mercurial thermometer. temperature measurement equipment measures its temperature of charge。
According to the present invention, the temperature of charge of the described stockpile time of becoming thoroughly decomposed when 55～70 DEG C is more than 15 days。When the temperature of charge of described stockpile is lower than 55 DEG C, then can not effectively kill pathogenic microorganism and worm's ovum；When the temperature of described material reaches more than 70 DEG C, then can cause fermentation material ashing because temperature is too high；Therefore the temperature of described material is accomplished by carrying out turning more than 70 DEG C, to reduce the temperature of its material, if not carrying out turning, being allowed to temperature and raising, can cause fermentation material ashing because temperature is too high, and the loss of the nutrition such as ammonium nitrogen。
If the temperature of charge of described stockpile is 55～70 DEG C, its become thoroughly decomposed deficiency of time 15 days time, then can not effectively kill pathogenic microorganism and worm's ovum.。
According to the method for defined in NY/T2118-2012. standard, the soil of nursery without soil-borne disease adopting the inventive method to prepare having been measured, its plant nutrient and water content are full nitrogen 1.32%, full phosphorus 0.384%, full potassium 1.25%, moisture content 30%.；；Its physical property is unit weight 0.36g/ml, total porosity 63.72%, aeration porosity 4.27%, water-holding porosity 59.45%。
The soil of nursery without soil-borne disease of the present invention may be used for the nursery of Citrullus vulgaris, Fructus Melo, Fructus Fragariae Ananssae, flowers etc.。
The conventional seedbed system method of the plants such as Citrullus vulgaris, Fructus Melo, Fructus Fragariae Ananssae, flowers can be adopted, use the soil of nursery without soil-borne disease of the present invention to carry out its nursery。
[beneficial effect]
The invention has the beneficial effects as follows: the raw material of preparation method of the present invention is easy to get, processing technique is simple, mild condition, can fully kill harmful pathogenic microorganisms, it is thus achieved that without soil-borne disease nursery soil, significantly alleviate the impact of pest and disease damage, thus significantly improving the growing environment of crop, crop sickness rate significantly reduces。
[detailed description of the invention]
The present invention will be better understood when by following embodiment。
Embodiment 1: prepare the nursery soil without soil-borne disease
The enforcement step of this embodiment is as follows
A, preparation
By the new fresh flat mushroom mushroom bran of granularity 2～8mm, infect that the melon patch of Fusarium oxysporum and root-knot nematode is native and common cattle manure mixs homogeneously according to stereometer 3.0:1.2:0.1, obtained a kind of mixture；
B, adjustment water content
Water is added so that it is water content reaches with described mixture total weight gauge 65% in the step A mixture obtained；
C, fermentation
The mixture obtained by step B collects together into stockpile wide 1.2 meters, high 0.65 meter, allows it become thoroughly decomposed 40 days, and stockpile temperature is more than 70 DEG C, and turning 3 times, stockpile temperature keeps the time of temperature more than 55 DEG C to be 25 days, obtains the described nursery soil without soil-borne disease。
The seedling medium prepared of the present embodiment is used to carry out watermelon seedling culturing, simultaneously to become thoroughly decomposed Pleurotus ostreatus mushroom bran, decomposed cow dung and infected the melon patch soil of Fusarium oxysporum and the root-knot nematode mixture according to volume ratio 2.5:1:0.35 mixing as comparison seedling medium。Nursery watermelon seed kind is L600。Conventional seedling growth test method is adopted to carry out pot for growing seedlings nursery。
Test method and condition:
(1) preparing nursery bed: seedbed soil is tedded, smooth after, be made into recessed bed wide about 1.5 meters, deep 5 cm, the old thin film in one layer of lower berth。Then, old thin film is inserted the dry rice chaff of 2-4 cm thick, upper lid layer fine earth, soil face of clapping, every 1000 watts of heating wires of 8 square metres of seedbed cloth (usually hot line spacing 5-10 centimetre, rarer in the middle of furrow, both sides are slightly close)。Select 10 × 10 centimetres of gage plastic nutritive cubes, be closely aligned on seedbed after installing soil, with grave jail on limit。
(2) seed treatment: 1. bask seeds: select fine day to bask seeds before sowing one day, to improve potentiality of seed。2. seed soaking: first process 10 minutes by the formalin of 1%, then soak seed 3-4 hour。
(3) sowing: sow front 1 week, seedling growth greenhouse wants overlay film to be incubated, sows first 2 days and preheats seedbed, and disposable waters sufficient Nutrition Soil bottom water, dries, and control soil temperature can be sowed more than 25 DEG C。Sowing time is advisable in the afternoon with fine day, one, an alms bowl, and seed should keep flat, and broadcasts 0.5 centimetre of the thin mud of bonnet, is advisable loseing seed。
Adopt two kinds of nursery each nursery 100 strains of soil, after sowing 40 days, emergence rate and pest and disease damage infection rate are added up, result shows, the emergence rate of two kinds of nursery soil is 72%, but utilize the soil of nursery without soil-borne disease prepared by the inventive method not have damping off, damping-off and root-knot nematode to occur within 40 days seedling stages, using comparison nursery soil then to find that damping off sickness rate reaches 5%, root-knot nematode sickness rate reaches 15%。
Embodiment 2: prepared by Herba Tagetis Patulae seedling medium
The enforcement step of this embodiment is as follows:
A, preparation
By the fresh Pleurotus nebrodensis mushroom bran of granularity 2～8mm, infect that the melon patch of Fusarium oxysporum and root-knot nematode is native and common cattle manure mixs homogeneously according to stereometer 3.5:1.5:0.5, obtained a kind of mixture；
B, adjustment water content
Water is added so that it is water content reaches with described mixture total weight gauge 55% in the step A mixture obtained；
C, fermentation
The mixture obtained by step B collects together into stockpile wide 1.2 meters, high 0.65 meter, allows it become thoroughly decomposed 40 days, and stockpile temperature is more than 70 DEG C, and turning 3 times, stockpile temperature keeps the time of temperature more than 55 DEG C to be 20 days, obtains the described nursery soil without soil-borne disease。
The seedling medium prepared of the present embodiment is used to carry out watermelon seedling culturing, simultaneously to become thoroughly decomposed Pleurotus nebrodensis mushroom bran, decomposed cow dung and infected the melon patch soil of Fusarium oxysporum and the root-knot nematode mixture according to volume ratio 2.5:1:0.35 mixing as comparison seedling medium。Nursery watermelon seed kind is L600。Conventional seedling growth test method is adopted to carry out pot for growing seedlings nursery。
The test method identical with embodiment 1 and condition is adopted to carry out pot for growing seedlings nursery
Adopt two kinds of nursery each nursery 100 strains of soil, after sowing 40 days, emergence rate and pest and disease damage infection rate are added up, result shows, the emergence rate of two kinds of nursery soil is 80%, but utilize the soil of nursery without soil-borne disease prepared by the inventive method not have damping off, damping-off and root-knot nematode to occur within 40 days seedling stages, using comparison nursery soil then to find that damping off sickness rate reaches 4%, root-knot nematode sickness rate reaches 12%。
Embodiment 3: prepared by Herba Tagetis Patulae seedling medium
The enforcement step of this embodiment is as follows:
A, preparation
By the fresh Flammulina velutiper (Fr.) Sing mushroom bran of granularity 2～8mm, infect that the melon patch of Fusarium oxysporum and root-knot nematode is native and common cattle manure mixs homogeneously according to stereometer 2:1:0.5, obtained a kind of mixture；
B, adjustment water content
Water is added so that it is water content reaches with described mixture total weight gauge 60% in the step A mixture obtained；
C, fermentation
The mixture obtained by step B collects together into stockpile wide 1.2 meters, high 0.65 meter, allows it become thoroughly decomposed 40 days, and stockpile temperature is more than 70 DEG C, and turning 3 times, stockpile temperature keeps the time of temperature more than 55 DEG C to be 30 days, obtains the described nursery soil without soil-borne disease。
The seedling medium prepared of the present embodiment is used to carry out watermelon seedling culturing, simultaneously to become thoroughly decomposed Flammulina velutiper (Fr.) Sing mushroom bran, decomposed cow dung and infected the melon patch soil of Fusarium oxysporum and the root-knot nematode mixture according to volume ratio 2.5:1:0.35 mixing as comparison seedling medium。Nursery watermelon seed kind is L600。Conventional seedling growth test method is adopted to carry out pot for growing seedlings nursery。
The test method identical with embodiment 1 and condition is adopted to carry out pot for growing seedlings nursery。
Adopt two kinds of nursery each nursery 100 strains of soil, after sowing 40 days, emergence rate and pest and disease damage infection rate are added up, result shows that the emergence rate of two kinds of nursery soil is 80%, but utilize the soil of nursery without soil-borne disease prepared by the inventive method not have damping off, damping-off and root-knot nematode to occur within 40 days seedling stages, using comparison nursery soil then to find that damping off sickness rate reaches 6%, root-knot nematode sickness rate reaches 20%。
Embodiment 4: prepared by Herba Tagetis Patulae seedling medium
The enforcement step of this embodiment is as follows:
A, preparation
By the fresh Pleurotus eryngii mushroom bran of granularity 2～8mm, infect that the melon patch of Fusarium oxysporum and root-knot nematode is native and common cattle manure mixs homogeneously according to stereometer 2.5:1.4:0.3, obtained a kind of mixture；
B, adjustment water content
Water is added so that it is water content reaches with described mixture total weight gauge 62% in the step A mixture obtained；
C, fermentation
The mixture obtained by step B collects together into stockpile wide 1.2 meters, high 0.65 meter, allows it become thoroughly decomposed 40 days, and stockpile temperature is more than 70 DEG C, and turning 3 times, stockpile temperature keeps the time of temperature more than 55 DEG C to be 24 days, obtains the described nursery soil without soil-borne disease。
The seedling medium prepared of the present embodiment is used to carry out watermelon seedling culturing, simultaneously to become thoroughly decomposed Pleurotus eryngii mushroom bran, decomposed cow dung and infected the melon patch soil of Fusarium oxysporum and the root-knot nematode mixture according to volume ratio 2.5:1:0.35 mixing as comparison seedling medium。Nursery watermelon seed kind is L600。Conventional seedling growth test method is adopted to carry out pot for growing seedlings nursery。
The test method identical with embodiment 1 and condition is adopted to carry out pot for growing seedlings nursery。
Adopt two kinds of nursery each nursery 100 strains of soil, after sowing 40 days, emergence rate and pest and disease damage infection rate are added up, result shows that the emergence rate of two kinds of nursery soil is 80%, but utilize the soil of nursery without soil-borne disease prepared by the inventive method not have damping off, damping-off and root-knot nematode to occur within 40 days seedling stages, using comparison nursery soil then to find that damping off sickness rate reaches 6%, root-knot nematode sickness rate reaches 20%。
Claims (5)
1. the preparation method without the nursery soil of soil-borne disease, it is characterised in that the step of this preparation method is as follows:
A, preparation
Fresh food bacterium mushroom bran, garden mould are mixed homogeneously according to stereometer 2～3.5:1～1.5:0.1～0.5 with cattle manure, obtains a kind of mixture；Described fresh food bacterium mushroom bran is selected from Pleurotus ostreatus, Flammulina velutiper (Fr.) Sing, Pleurotus nebrodensis, Pleurotus eryngii or crab flavour mushroom domestomycetes mushroom bran；
B, adjustment water content
Water is added so that it is water content reaches with described mixture total weight gauge 55～65% in the step A mixture obtained；
C, fermentation
The mixture obtained by step B collects together into stockpile, it is allowed to become thoroughly decomposed 38～42 days, turning is just carried out when the temperature of charge of described stockpile reaches more than 70 DEG C, to reduce the temperature of its material, the temperature of charge of the described stockpile time of becoming thoroughly decomposed when 55～70 DEG C is more than 15 days, so obtains the described nursery soil without soil-borne disease。
2. preparation method according to claim 1, it is characterised in that the volume ratio of fresh food bacterium mushroom bran, garden mould and cattle manure is 2.4～3.0:1.2～1.4:0.2～0.4。
3. preparation method according to claim 1, it is characterised in that the granularity of described edible fungus bran, garden mould and cattle manure is 2～8mm。
4. preparation method according to claim 1, it is characterised in that described stockpile is cuboid。
5. preparation method according to claim 4, it is characterised in that the ratio of the width of described stockpile and height is 1.2:0.65～0.75。
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| CN107188729A (en) * | 2017-07-25 | 2017-09-22 | 沈阳恒生农业发展有限公司 | A kind of gumbo seedling medium based on crab flavour mushroom mushroom bran and its preparation method and application |
| CN114766319A (en) * | 2017-11-24 | 2022-07-22 | 浙江省农业科学院 | Strawberry cultivation medium and preparation method and application thereof |
| CN108812192A (en) * | 2018-06-27 | 2018-11-16 | 淮南市永光草莓专业合作社 | A kind of seedling medium formula suitable for western melon crop nursery |
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