CN1059917C - Wood distilled liquid and its prepn. and application - Google Patents
Wood distilled liquid and its prepn. and application Download PDFInfo
- Publication number
- CN1059917C CN1059917C CN94100990A CN94100990A CN1059917C CN 1059917 C CN1059917 C CN 1059917C CN 94100990 A CN94100990 A CN 94100990A CN 94100990 A CN94100990 A CN 94100990A CN 1059917 C CN1059917 C CN 1059917C
- Authority
- CN
- China
- Prior art keywords
- wood
- distillation liquid
- liquid
- application
- wood distillation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The present invention relates to a wind distillation liquid and a preparation method thereof. The preparation method comprises the following steps: adopting a temperature of 5 to 25 DEG C from wood pyrolysis gas to cool and recycle a mixture, then rapidly cooling to 15 to 25 DEG C below zero, repeating the steps at least twice, obtaining the liquid with a three-layer structure, and separating a middle layer to obtain the wood distillation liquid of the present invention. The wood distillation liquid can be used as disinfecting agents, pesticides, deodorants, fruit antistaling agents, plant growth regulators, etc.
Description
The present invention relates to the purposes of a kind of Wood distillation liquid ad and preparation method thereof and this Wood distillation liquid ad.
Usually, in the prior art, timber secluding air feed an amount of air or other ambient conditions under the thermal decomposition of wood (wood pyrolysis) can take place.In this chemical reaction, its primary product is liquid wood vinegar and wood tar oil, gasiform wood gas and solid-state charcoal.The quantity of product and the variation of forming with raw material and processing condition change, and thermal decomposition of wood industry is divided into the departments such as (the title charing is arranged), wood distillation, gasification of wood and Activated Carbon Production that make charcoal according to the difference of purpose product.Generally make charcoal and a large amount of useless flue gas of preparing active carbon discharging, pollution on the environment is very heavy.Therefore people are seeking how to handle the method for these waste gas always.
Timber begins to occur tangible pyrolytic reaction in the time of 160 ℃; Temperature begins thermopositive reaction when reaching 275 ℃, generates a large amount of degradation productions, as acetic acid, methyl alcohol, wood tar oil product liquid and gaseous product.
The thermal decomposition of wood with the history of making charcoal at most.During 19th-century, because of the requirement increase of edible vinegar, methyl alcohol, acetone, beginning producing charcoal is that main making charcoal is converted to the wood distillation based on production and Working liquids product.
Overhead product during wood distillation (destructive distillation of wood) can obtain the gaseous product (wood gas) of crude pyroligneous acid (proportion 1.00-1.05 (15/4 ℃)) and incoagulability after condensation, remaining in the retort is charcoal.During the crude pyroligneous acid clarification, lower floor is the clarification wood vinegar, and the upper strata is a wood tar oil.Contain acids (mainly being acetic acid), alcohols (mainly being methyl alcohol), ester class, ketone, aldehydes, furan compound and carbohydrate etc. in the clarification wood vinegar, the still raffinate that obtains during distillation is soluble wood tar.Known, acetic acid is used to make cellulose acetate, acetic ester etc., and methyl alcohol is used to make formaldehyde etc., and solvent is used for industrial sectors such as paint, weaving.But this traditional diamond-making technique time is long, takes manpower, the cost height, and also not good to its product liquid utilization ratio.
In order to overcome the deficiencies in the prior art, the object of the present invention is to provide the purposes of a kind of Wood distillation liquid ad and preparation method thereof and this Wood distillation liquid ad.
Another object of the present invention provides a kind of method of administering the useless flue gas of discharging in the thermal decomposition of wood process.
The objective of the invention is to reach by the following technical programs:
The method through the present invention that is meant ＂ Wood distillation liquid ad ＂ one speech of the present invention reclaims make a kind of and has multiduty liquid from the emission gases of the thermal decomposition of wood.The present invention's Wood distillation liquid ad is not a wood vinegar well known to those skilled in the art.
The present invention relates to a kind of preparation method's (method 1) of Wood distillation liquid ad, it is characterized in that comprising the steps:
From the thermal decomposition of wood (wood pyrolysis) discharged flue gas, during with 5-20 ℃, reclaim with the condenser cooling of its internal surface passivation, a mixed solution;
The mixed solution that obtains is chilled to subzero 15-25 ℃ from room temperature, repeats at least twice, rewarming obtains having the liquid that is essentially the upper, middle and lower-ranking state to room temperature then;
The liquid that separates the middle layer gets described Wood distillation liquid ad, and its proportion is between the 1.0-1.1, (25 ℃) pH2.3-4.5, pol 1-5 degree.
Described timber can be various timber, preferably leaf wood timber.
Raw material sources of the present invention are as charcoal processing industry, the useless flue gas and/or the carbonizing gas that discharge during the thermal decompositions of wood such as wood distillation.Contain very complicated composition in these flue gases, generally include the above-mentioned gentle body portion of wood vinegar body.But those skilled in the art know, and the composition in its recover materials is the kind with timber, the difference of conditions such as recovery method and changing.The present invention takes the refrigerative method to reclaim discharged flue gas.The condenser of common use can not be used for the inventive method, and the condenser that adopts among the present invention is the condenser of surface passivation within it.The Stainless Steel Condenser of its internal surface passivation preferably.Also can be that its internal surface is the condenser that wood, bamboo, pottery or porcelain are made.Thermal decomposition of wood discharged flue gas can make a part of composition in the flue gas coagulate through cryogenic condenser.The condensing temperature of using in the inventive method is 15-25 ℃.
The invention still further relates to a kind of preparation method's (method 2) of Wood distillation liquid ad, it is characterized in that comprising the steps:
From the thermal decomposition of wood (wood pyrolysis) discharged flue gas, reclaim, get a mixed solution with 5-20 ℃ of cooling;
The mixed solution that obtains is heated to 30-80 ℃;
Mixed solution decompression vacuum pumping in container after this is heated, its pressure is negative 1.5-2.5 kg/cm;
Obtain having the liquid that is essentially the upper, middle and lower-ranking state;
The liquid that separates the middle layer gets described Wood distillation liquid ad, and its proportion is between the 1.0-1.1, pH2.3-4.5, pol 1-5 degree.
It is this that to prepare the timber that uses in the method for Wood distillation liquid ad all identical with condenser with the timber that uses in the above-mentioned method 1 with condenser.
The present invention preferably uses the carbonization of wood (making charcoal) to make the useless flue gas of discharge.
The present invention has many advantages and benefit, and the method that the present invention prepares Wood distillation liquid ad is simple, and is quick, with low cost; The product that makes is easily separated, and purity is higher.In addition, the useless flue gas that discharges when the thermal decomposition of wood that the inventive method was handled will reduce it widely to atmospheric pollution, the environment around having protected.
The present invention's Wood distillation liquid ad is the material that contains natural goods that obtains from natural phant, owing to adopt the present invention's preparation method, does not contain carcinogens in this product, and human body is not had harm.
The described Wood distillation liquid ad that obtains through the inventive method serves many purposes.
Described Wood distillation liquid ad can be used as sterilant, sterilant, fruit antistaling agent, soil improvement agent, plant-growth regulator, reodorant and fodder additives or the like after diluting.
Adopt the present invention's Wood distillation liquid ad will reach no chemical pesticide farming, significantly reduce the pollution of chemical substance human environment.
Brief Description Of Drawings:
Fig. 1 is that the present invention's the Wood distillation liquid ad dilution and the pH value of wood vinegar dilution change relatively.
Fig. 2 is the diluent sterilization effect and the pH value comparison diagram of the present invention's Wood distillation liquid ad.
Be further explained in detail the present invention below with reference to accompanying drawing, following embodiment and unrestricted the present invention.
Raw material sources of the present invention are as charcoal processing industry, the useless flue gas and/or the carbonizing gas that discharge during the thermal decompositions of wood such as wood distillation.Contain very complicated composition in these flue gases, generally include above-mentioned liquids and gases part.But those skilled in the art know, and the composition in its recover materials is the kind with timber, the difference of conditions such as recovery method and changing.The present invention takes the refrigerative method to reclaim discharged flue gas.The condenser of common use can not be used for the inventive method, and the condenser that adopts among the present invention is the condenser of surface passivation within it.The Stainless Steel Condenser of its internal surface passivation preferably.Also can be that the surface is the condenser that wood, bamboo, pottery or porcelain are made within it.Thermal decomposition of wood discharged flue gas can make a part of composition in the flue gas coagulate through cryogenic condenser.
Different the differing greatly in position that its chemical constitution of timber that the present invention adopts exists because of seeds, growing environment, tissue.The chemical constitution of known temperate zone pin, pourous wood is: content (%) Mierocrystalline cellulose 42 ± 2 45 ± 2 hemicelluloses 27 ± 2 30 ± 5 xylogen 28 ± 3 20 ± 4 extract * 3 ± 25 ± 3 in content (%) pourous wood in the composition title softwood
Described extract * is meant and is present in the acellular wall constituent that molecular weight is lower in the texture of wood, the general name of the material that separation such as available neutral solvent such as ether, benzene, alcohol, acetone, water or water vapor are come out.
Preferred timber is pourous wood among the present invention.
The flue gas of the thermal decomposition of wood coagulates a mixture through one or more condensers or cold indirectly (water) heat (vapour) interchanger.The surface of the exhaust gases passes of this condenser is the metallic substance of passivation, is preferably stainless steel, or bamboo, and wood is made pottery, and porcelain etc. are difficult for the acid resisting material of oxidation.Temperature in the condenser is 5-20 ℃.
Described mixture be a muddiness, the surface has the product of oily matter.Its color and timber kind, recovery time, recovered temperature, multiple factors such as recovery form are relevant.Usually from amber to chocolate.
This mixture is packed in the container, and chilling or quick-frozen be to negative 15 to 25 ℃, then at rewarming to normal temperature or room temperature, so repeatedly at least twice.Its effect is can the oily particle in the mixture be discharged from mixture.
Through the processing of above-mentioned steps, described mixture can be divided into three parts, i.e. upper strata basically: claim upper layer again, this layer mainly contains the macrobead fibre object of wood tar oil, benzene, phenol and timber, and its granular size is about the 50-100 order.The middle level, promptly the middle layer is a Wood distillation liquid ad of the present invention, and its composition more complicated mainly contains acids and neutral compound, and its proportion is between the 1.0-1.1, (25 ℃) pH2.3-4.5, pol 1-5 degree.This layer product has a unexpected character, and its pH value is inviolent with the diluted variation of Wood distillation liquid ad, and this characteristic is different from the characteristic that well known to a person skilled in the art wood vinegar.(see figure 1) lower floor or claim bottom, this layer mainly contains the throw out, salt root of fiber grain etc.Employing well known to a person skilled in the art method separation middle level liquid, gets Wood distillation liquid ad of the present invention.
In addition, the invention still further relates to the another kind of method that prepare Wood distillation liquid ad, be about to coagulate the mixture that and be heated to 30-80 ℃ by known method, with the container of packing into of the mixture after the heating, decompression vacuum pumping, its pressure are to bear the 1.5-2.5 kg/cm.The supernatant liquid composition can be isolated from mixture like this, then in separating and lower floor's product by known method.
Embodiment one
The condenser of one ceramic is installed on the charcoal kiln chimney of making charcoal with hardwood, the useless flue gas flow of discharging coagulates aqueous condensation product when condenser, this condensation product is a multicomponent mixed solution, gets 5 kilograms of described mixed solutions, put into and have torpescence character, acidproof plastic containers; With described mixed solution from room temperature (about 25 ℃) rapid cooling to subzero 15 ℃; Then, rewarming is chilled to the mixed solution behind the rewarming subzero 15 ℃ once more to room temperature.Obtain a liquid product that has three-decker basically, separate the upper strata product that this product gets 1.5 kilograms, 3 kilograms middle level product and lower floor's product of 0.5 kilogram.
Through recording: the proportion of its middle level product: 1.0; PH4.0; Pol: 5
Embodiment two
5 kilograms of multicomponent mixed solutions that the embodiment one that learns from else's experience obtains are chilled to subzero 20 ℃ by example one identical method with this mixed solution, and chilling-rewarming 3 times repeatedly then is divided into till three layers basically to mixed solution.Get 1.3 kilograms upper strata product, the product in 3 kilograms of middle levels, lower floor's product of 0.8 kilogram.
Through recording: the proportion of middle level product: 1.05; PH3.4; Pol:
Embodiment three
Placed in-line three condensers of pyrolyzate gas stream that the destructive distillation of birch material is discharged through making with the stainless steel of passivation, one coagulate the mixed solution that, this mixed solution is packed in the container, be chilled to subzero 25 ℃ from room temperature, three aspects, i.e. top layer, middle layer and low layer appear more significantly being essentially in several to mixed solution repeatedly.Separate described three aspects with known method, get 3.2 kilograms middle layer product, 1.3 kilograms top layer product, 0.5 kilogram low layer product.
Through recording: the proportion of intermediate product: 1.03; PH:4.0; Pol: 3
Embodiment four
100 kilograms of the mixed solutions that the embodiment one that learns from else's experience makes are heated to 30 ℃, it are sealed in decompression vacuum pumping in the container again, and the pressure in the container reduces to negative 1.5 kg/cm, keeps this pressure about 30 minutes; Significantly three-decker appears in mixed solution, adopts industrial extraction and separation technology commonly used, obtains 30 kilograms top layer product, 60 kilograms middle layer product, and 10 kilograms low layer product.
Through recording the proportion of middle layer product: 1.1; PH4.5; Pol: 4
Embodiment five
Get 50 kilograms of the mixed solutions that embodiment three makes, prepare Wood distillation liquid ad by the method for embodiment four, wherein Heating temperature is 80 ℃, container inner pressure reduces to negative 2.5 kg/cm, separates to obtain 15 kilograms top layer product, 30 kilograms Wood distillation liquid ad, be the middle level product, 5 kilograms bottom product.
Through recording: the proportion of Wood distillation liquid ad: 1.02; PH:2.7; Pol: 1
Experimental example one
Control to the harmful mould of soil
Get the Wood distillation liquid ad that embodiment one makes, doubly (Wood distillation liquid ad: water 1: the 10-20 volumetric ratio), get a diluent, consumption is that every square metre of soil sprays 2 kilograms diluent to dilute with water 10-20.Once, after planting 4-5 days once before the sowing.The harmful mould that records in 1-3 week after spraying in the soil reduces 93% than original.
In addition, use Wood distillation liquid ad of the present invention can also make in the soil to crop bacteria beneficial normal growth, and promote the growth of crop to improve nitrogen in the soil with the coordinative role of crossing them, phosphorus, potassium and content of elements are kept soil from packing together.
Experimental example two
Control to diseases and pests of agronomic crop
Get the Wood distillation liquid ad that embodiment two makes, dilute with water 4-8 doubly (Wood distillation liquid ad: water 1: the 4-8 volume), get a diluent, directly spray Chinese cabbage with this diluent, every five sprays once, totally three times, go rotten sick by canker and the grey that can prevent and treat Chinese cabbage.Reduce by 98% with its sickness rate of back.
Experimental example three
Apple preservation and fresh-keeping
Get the Wood distillation liquid ad that embodiment three makes, dilute with water 40-60 is (Wood distillation liquid ad: water 1: 40-60), get a diluent doubly; Directly spray the apple fruit with this diluent, use once week about, in totally two weeks, the morbidity of canker of apple fruit reduces by 90%.But to the serious partial smearing of rotting; Therefore, the present invention's Wood distillation liquid ad can be used for the preservation of apple.
Experimental example four
Promote the maturation and the quality of improving fruit of fruit
Get the Wood distillation liquid ad that embodiment four makes, dilute with water 100-1000 doubly gets a diluent, sprays fruit tree in the nearly ripening stage of fruit, at least once, can make fruit pol rising 3-4 degree.As pol rising 3 degree of peach or pears, pol rising 4 degree of grape.
Experimental example five
Reodorant
Get the Wood distillation liquid ad that embodiment five makes, 50 times of dilute with waters get a diluent; This liquid has very strong deodorization functions, directly washes or sprays side institute with it, and its stink is all eliminated in about 10 minutes.
Experimental example six
Fodder additives
Get the Wood distillation liquid ad that embodiment five makes, 100 times of dilute with waters get a diluent; Make fodder additives with this diluent and feed pig or ox, its consumption is that feed per ton changes diluent with 2 kilograms, slaughters after two weeks, and it is about 8% that the interior moisture of its meat descends, and the color of meat is bright red, and mouthfeel is improved greatly.In addition, the cow of edible the present invention's Wood distillation liquid ad, its ratio of suffering from garget reduces greatly.
Experimental example seven
Get each 10 milliliters of the Wood distillation liquid ads that known wood vinegar and embodiment 1 make, they are diluted with water to 50,100,150,200 times respectively; Survey the two pH value, its center line A is a wood vinegar, and line B is a Wood distillation liquid ad, and what obtain the results are shown in accompanying drawing 1.
Among the figure as seen: the pH of wood vinegar alters a great deal; The pH of Wood distillation liquid ad changes with the wood vinegar difference, illustrates that both are not same substances.
Experimental example eight
Soil sampling adds and narrows with soil after diluent that the Wood distillation liquid ad of the embodiment of the invention 1 makes or diluent add withered grass, after the week, surveys the number to the harmful bacterium of farm crop in the soil.It the results are shown in accompanying drawing 2, and wherein X-axis is sterilization number (upper semisection), and lower semisection is the pH value, and Y-axis is an extension rate.
Among the figure as seen: 1. diluent is that very strong germicidal action is arranged in 1/100;
2. diluent is in the 1/100-1/200 time, and is extremely favourable to the breeding of farm crop probiotics;
3. the breeding potential of the diluent bacterium of 1/200-1/1000 descends.
In addition, the pH of the diluent in 1/100 is about between the 2.5-3.25; The pH of the diluent in 1/200 is about between the 3.25-3.4.
Claims (11)
1. the preparation method of a Wood distillation liquid ad is characterized in that comprising the steps:
From the thermal decomposition of wood (wood pyrolysis) discharged flue gas, in the time of 5-20 ℃, reclaim with the condenser cooling of its internal surface passivation, get a mixed solution;
The mixed solution that obtains is chilled to subzero 15-25 ℃ from room temperature, repeats at least twice, rewarming obtains having the liquid that is essentially the upper, middle and lower-ranking state to room temperature then;
The liquid that separates the middle layer gets described Wood distillation liquid ad, and the proportion of this Wood distillation liquid ad is 1.0-1.1 (25 ℃), and the pH value is 2.3-4.5, and pol is 1-5.
2. the method for claim 1 is characterized in that described timber is leaf wood timber.
3. the method for claim 1 is characterized in that described condenser is a Stainless Steel Condenser.
4. method as claimed in claim 1 or 2 is characterized in that described cooling is that the surface is to carry out in the condenser made of wood, bamboo, pottery or porcelain within it.
5. Wood distillation liquid ad that makes by the described method of claim 1.
6. the application of Wood distillation liquid ad as claimed in claim 5 in making soil improvement agent.
7. the application of Wood distillation liquid ad as claimed in claim 5 in making sterilant and sterilant.
8. the application of Wood distillation liquid ad as claimed in claim 5 in making reodorant.
9. the application of Wood distillation liquid ad as claimed in claim 5 in making fodder additives.
10. the application of Wood distillation liquid ad as claimed in claim 5 in making plant-growth regulator.
11. the application of Wood distillation liquid ad as claimed in claim 5 in making fruit antistaling agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94100990A CN1059917C (en) | 1994-02-05 | 1994-02-05 | Wood distilled liquid and its prepn. and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94100990A CN1059917C (en) | 1994-02-05 | 1994-02-05 | Wood distilled liquid and its prepn. and application |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB001054198A Division CN1143889C (en) | 1994-02-05 | 1994-02-05 | Wood distillation liquid ad preparation process thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1106449A CN1106449A (en) | 1995-08-09 |
| CN1059917C true CN1059917C (en) | 2000-12-27 |
Family
ID=5029982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94100990A Expired - Fee Related CN1059917C (en) | 1994-02-05 | 1994-02-05 | Wood distilled liquid and its prepn. and application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1059917C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6485841B1 (en) * | 1998-10-30 | 2002-11-26 | Ensyn Technologies, Inc. | Bio-oil preservatives |
| CN1303186C (en) * | 2003-04-15 | 2007-03-07 | 丽水市森得立生物农业研发有限公司 | Refining method of wood, bamboo vinegar liquid and its equipment |
| CN111357419A (en) * | 2020-03-23 | 2020-07-03 | 广西壮族自治区农业科学院 | Method for improving soil by using wood vinegar |
| CN112400898A (en) * | 2020-10-27 | 2021-02-26 | 中国农业大学 | Bactericidal insecticide and its preparing method and use |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0070710A2 (en) * | 1981-07-16 | 1983-01-26 | American Carbons Inc. | Pyrolysis system with hot gas circulation |
| EP0125067A1 (en) * | 1983-05-04 | 1984-11-14 | Energy Concepts Limited | Liquid fuel production and energy conversion systems |
| US4648965A (en) * | 1985-05-01 | 1987-03-10 | Exxon Research And Engineering Company | Retorting with sintered or fused solids |
-
1994
- 1994-02-05 CN CN94100990A patent/CN1059917C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0070710A2 (en) * | 1981-07-16 | 1983-01-26 | American Carbons Inc. | Pyrolysis system with hot gas circulation |
| EP0125067A1 (en) * | 1983-05-04 | 1984-11-14 | Energy Concepts Limited | Liquid fuel production and energy conversion systems |
| US4648965A (en) * | 1985-05-01 | 1987-03-10 | Exxon Research And Engineering Company | Retorting with sintered or fused solids |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1106449A (en) | 1995-08-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| BRPI0208931B1 (en) | METHODS OF INHIBITING THE GROWTH OF A FRUIT, TREATMENT OR PROTECTION BODY, PLANT, SEED, GRAIN OR SOIL CIRCUITING PLANTS AGAINST INFESTATION A BODY CONSTRUCTION AND TREATMENT PROTECTION ORGANISM A VOLATILE COMPOSITION | |
| CN1785923A (en) | Edible fungus chaff green fertilizer | |
| CN1182537A (en) | Plant protective agent and preparing method thereof | |
| CN104351260A (en) | Biological pesticide for killing aphids and preparation method for biological pesticide | |
| CN1059917C (en) | Wood distilled liquid and its prepn. and application | |
| CN100417326C (en) | Environmentally safe agricultural supplement | |
| CN105948831B (en) | A method of biological and ecological methods to prevent plant disease, pests, and erosion fertilizer is produced using brewex's grains | |
| CN1711885A (en) | Non-pollution nuisance composite mycelium active forage and production thereof | |
| CN1143889C (en) | Wood distillation liquid ad preparation process thereof | |
| CN114097780B (en) | Method for preparing bactericide for inhibiting botrytis cinerea and application | |
| CN107746302A (en) | A kind of method that organic fertilizer is made using stalk | |
| Ge et al. | The degradation of residual pesticides and the quality of white clover silage are related to the types and initial concentrations of pesticides | |
| CN110257074A (en) | A kind of preparation of wood vinegar bacillus subtilis bacterium solution soil conditioner and its application method | |
| CN1059421C (en) | Carbon-based multiple high effect composite fertilizer and process for producing same | |
| CN100339472C (en) | Metarrhizium anisopliae deltoid moths subspecies and its disinsection culture and use method | |
| Brari et al. | Larvicidal effects of eight essential oils against Plodia interpunctella and Tribolium castaneum, serious pests of stored products worldwide | |
| CN106576764A (en) | Dwarfing method for asparagus fern | |
| CN1156954A (en) | New nematophage agent against nematodes of meloidogyne genus | |
| Morales et al. | Elucidating the chemical properties and potential applications of wood vinegars produced by controlled thermal treatments. | |
| CN210127213U (en) | Wood vinegar bacillus subtilis liquid soil conditioner preparation facilities | |
| CN1049646C (en) | Natural plant fertilizer and its production | |
| CN1943354A (en) | Novel pesticide for preventing corn core losing | |
| DE3106649A1 (en) | "METHOD FOR THE PRODUCTION OF PENICILLIN-FREE MYCELIC MASSES FROM FERMENTATIVELY PRODUCED PENICILLIN PRODUCTION CULTURES AND THEIR USE AS ANIMAL FEED AND DRINKING AGENT" | |
| Hoitink et al. | Effect of composts in container media on diseases caused by soilborne plant pathogens | |
| CN210043169U (en) | Wood vinegar microorganism livestock and poultry feed additive preparation device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20001227 Termination date: 20130205 |