CN112321339A - Composite earthworm liquid and preparation method, device and application thereof - Google Patents

Composite earthworm liquid and preparation method, device and application thereof Download PDF

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Publication number
CN112321339A
CN112321339A CN202011162880.4A CN202011162880A CN112321339A CN 112321339 A CN112321339 A CN 112321339A CN 202011162880 A CN202011162880 A CN 202011162880A CN 112321339 A CN112321339 A CN 112321339A
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earthworm
fermentation
composite
fermentation tank
liquid
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刘爱香
朱弘智
曹云娥
王耀宗
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Chongqing Maijia Agricultural Technology Co Ltd
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Chongqing Maijia Agricultural Technology Co Ltd
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    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
    • C05F3/00—Fertilisers from human or animal excrements, e.g. manure
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05B—PHOSPHATIC FERTILISERS
    • C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
    • C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
    • C05F17/05—Treatments involving invertebrates, e.g. worms, flies or maggots
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
    • C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
    • C05F17/50—Treatments combining two or more different biological or biochemical treatments, e.g. anaerobic and aerobic treatment or vermicomposting and aerobic treatment
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
    • C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
    • C05G3/40—Mixtures of one or more fertilisers with additives not having a specially fertilising activity for affecting fertiliser dosage or release rate; for affecting solubility
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
    • C05G5/00—Fertilisers characterised by their form
    • C05G5/20—Liquid fertilisers
    • 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 invention provides a composite earthworm liquid and a preparation method, a device and application thereof, the method adopts multi-stage fermentation, the fermentation effect is good, the deodorization effect is obvious, simultaneously, the nutrient content is high, the addition of inorganic nutrients in the later period is reduced, the production cost is reduced, and meanwhile, a byproduct organic fertilizer can be obtained. The composite earthworm liquid provided by the invention can be used as NFT nutrient solution, can effectively provide help for nutrient supply in the later growth stage of crops, and plays a certain role in sustained and controlled release. In addition, the composite earthworm solution can effectively improve the yield and quality of soilless culture crops.

Description

Composite earthworm liquid and preparation method, device and application thereof
Technical Field
The invention relates to the technical field of nutrient solution for soilless culture of plants, in particular to a composite earthworm solution and a preparation method, a device and application thereof.
Background
The earthworm liquid has outstanding contribution in animal feed and animal body planting, but has higher added value for crop planting, particularly economic crops, the soilless culture water planting technology is adopted, the requirement on water planting is higher, particularly true organic vegetables are planted, and the composite earthworm liquid is applied, so that the organic culture of the crops can be met, the balance of nutrition can be kept, and the nutrients of the crops in different growth periods can be effectively adjusted.
The existing preparation method of earthworm hydrolysate and the preparation method of earthworm liquid are nutrient solutions directly acting on soil, and concentration gradient and preparation process and application range are not well explained.
The existing preparation method based on earthworm bodies does not directly act on nutrient solution for soilless culture, particularly for domestic agriculture, and requires small occupied area and soilless culture due to corresponding equipment influenced by fields and domestic environments. The NFT water culture technology is also called nutrient liquid membrane technology, and at present, the domestic main nutrient solution still contains inorganic nutrients and less organic components.
In view of the above, the present invention is particularly proposed.
Disclosure of Invention
The invention aims to provide a preparation method of composite earthworm liquid, which adopts multi-stage fermentation, has good fermentation effect, obvious deodorization effect and high nutrient content, reduces the addition of inorganic nutrients in the later period, reduces the production cost, and can obtain byproduct organic fertilizer at the same time.
The second purpose of the invention is to provide the composite earthworm liquid which can be used as NFT nutrient solution, can effectively provide help for nutrient supply in the later growth stage of crops, and has a certain sustained and controlled release effect.
In order to achieve the above purpose of the present invention, the following technical solutions are adopted:
a preparation method of composite earthworm liquid comprises the following steps:
(a) after the cow dung and the straws are crushed, aerobic fermentation is carried out, and earthworm seedlings are put into the crushed cow dung and the straws for feeding;
preferably, the carbon-nitrogen ratio of the cow dung to the straws is 24-26: 1;
preferably, the aerobic fermentation is carried out for 1 to 3 days by adopting a strip-stack type treatment;
preferably, the input amount of the earthworms is 2000 to 3000 earthworms/m2；
Preferably, the raising conditions are that the temperature is 24-31 ℃, and the water content is kept at 12% -15%;
preferably, the earthworms grow for 18 to 22 days, and then lay eggs and hatch for 28 to 30 days;
(b) when the earthworm growth rate is 26% -31%, separating earthworms to obtain an organic fertilizer; adding water into Lumbricus, pulverizing, stirring, adding nutrient substances, microelements and anaerobic bacteria, performing anaerobic fermentation, performing solid-liquid separation, adding zymophyte and deodorizing bacteria, and performing secondary fermentation;
preferably, the time for anaerobic fermentation is 1-2 hours;
preferably, the nutrient substances mainly comprise the following components in percentage by mass:
Ca(NO3)2·4H2O 612.3-652.2g/L、KNO3 322-345g/L、KH2PO456-95g/L and MgSO4·7H2O 129-158g/L；
Preferably, the trace elements mainly comprise the following components in terms of mass concentration:
H3BO3 1.19-1.24g/L、MnSO4·4H2O 1.02-1.08g/L、Na2Fe·EDTA11.2-14.54g/L、ZnSO4·7H2O 0.18-0.22g/L、CuSO4·5H2O 0.04-0.06g/L、(NH4)6MoO24·4H2O 0.01-0.03g/L；
(c) after the second-stage fermentation, earthworm protein is separated, hydrolase and water are added into the earthworm protein, and after the third-stage fermentation, composite earthworm liquid is obtained by dilution, precipitation and separation;
preferably, the time of the three-stage fermentation is 2 to 3 hours
Diluting according to the mass ratio of water to the earthworm liquid after the three-stage fermentation of 200-300:1 and 300-500: 1.
The composite earthworm liquid prepared by the preparation method of the composite earthworm liquid.
The application of the composite earthworm liquid in a nutrient liquid membrane technology.
A production device of composite earthworm liquid is suitable for the preparation method of the composite earthworm liquid, and comprises a first fermentation tank, a second fermentation tank, a third fermentation tank, a slag pool and a storage tank which are connected in sequence;
a first water suction pump is arranged in the second fermentation tank and connected with the first fermentation tank through a pipeline;
a second water suction pump is arranged in the third fermentation tank and connected with the second fermentation tank through a pipeline;
a third water suction pump is arranged in the storage tank and connected with the third fermentation tank through a pipeline;
the first fermentation tank, the second fermentation tank and the third fermentation tank are all connected with a slag pond below;
the third fermentation cylinder with the storage tank is connected, the bottom of storage tank still is connected with two sedimentation tanks.
Compared with the prior art, the invention has the beneficial effects that:
(1) the preparation method of the composite earthworm liquid provided by the invention has the advantages that the fermentation rate is increased through multi-stage fermentation, the deodorization can be effectively realized, the content of N, P, K in the composite earthworm liquid is about 6 percent in the preparation process, the content of trace elements is higher, the inorganic nutrients added in the later period are less, and the production cost of the composite earthworm liquid is greatly reduced.
(2) The composite earthworm liquid provided by the invention can effectively provide help for the nutrient supply in the later growth stage of crops as NFT nutrient solution, and plays a certain role in sustained and controlled release.
(3) The preparation method of the composite earthworm liquid provided by the invention can also obtain a byproduct organic fertilizer.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic connection diagram of a production apparatus for composite earthworm liquid according to an embodiment of the present invention.
Reference numerals
1-a first fermenter; 2-a second fermenter; 3-a third fermentation tank; 4-a slag tank; 5-a material storage tank;
6-a first water pump; 7-a second water pump; 8-a third water pump; 9-a sedimentation tank.
Detailed Description
The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings and the detailed description, but those skilled in the art will understand that the following described embodiments are some, not all, of the embodiments of the present invention, and are only used for illustrating the present invention, and should not be construed as limiting the scope of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. The examples, in which specific conditions are not specified, were conducted under conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available commercially.
The preparation method of the composite earthworm liquid provided by the invention can use the following devices, as shown in figure 1, comprising a first fermentation tank 1, a second fermentation tank 2, a third fermentation tank 3, a slag tank 4 and a storage tank 5 which are connected in sequence; a first water pump 6 is arranged in the second fermentation tank 2, and the first water pump 6 is connected with the first fermentation tank 1 through a pipeline; a second water suction pump 7 is arranged in the third fermentation tank 3, and the second water suction pump 7 is connected with the second fermentation tank 2 through a pipeline; a third water suction pump 8 is arranged in the storage tank 5, and the third water suction pump 8 is connected with the third fermentation tank 3 through a pipeline; the first fermentation tank 1, the second fermentation tank 2 and the third fermentation tank 3 are all connected with a slag pond 4 below; the third fermentation tank 3 with the storage tank 5 is connected, the bottom of storage tank 5 still is connected with two sedimentation tanks 9, collects the earthworm liquid of different concentration, and the filtrand in the sedimentation tank 9 can secondary fermentation, uses as fertilizer.
The method comprises the following steps: (a) crushing the cow dung and the straws which are wastes of the breeding industry and the planting industry, reasonably proportioning by means of crushing, turning and throwing, performing strip stack type treatment, performing initial aerobic fermentation by using a turning and throwing machine, and then feeding earthworms 1-3 days after the initial aerobic fermentation, wherein the variety is Daping No. two, and the input amount is 2000-3000 strips/m2The culture environment is as follows: the room temperature is 24-31 ℃, and the water content is 12-15%;
(b) the growth time of the earthworms is about 20 days, the laying and hatching time is about 28 days, when the growth rate of the earthworms is 26-31%, the earthworms are separated to obtain a byproduct organic fertilizer, and the organic fertilizer can be directly used in soil without secondary fermentation, thereby playing the roles of soil conservation and soil moisture conservation;
after earthworm extraction, 320-360Kg of earthworm is put into a first fermentation tank 1, and water is added to the first fermentation tank 1 at the same time, the earthworm is smashed and stirred for about 1 hour, and then nutrient substances and trace elements are added;
the nutrient substances mainly comprise the following components in percentage by mass:
Ca(NO3)2·4H2O 612.3-652.2g/L、KNO3 322-345g/L、KH2PO456-95g/L and MgSO4·7H2O 129-158g/L；
The trace elements mainly comprise the following components in percentage by mass:
H3BO3 1.19-1.24g/L、MnSO4·4H2O 1.02-1.08g/L、Na2Fe·EDTA11.2-14.54g/L、ZnSO4·7H2O 0.18-0.22g/L、CuSO4·5H2O 0.04-0.06g/L、(NH4)6MoO24·4H2O 0.01-0.03g/L；
after fermentation for 1 hour, controlling the flow by the second fermentation tank 2, pumping into the second fermentation tank 2, filtering by a plurality of layers of filter screens (the filter screen is 200 meshes), directly discharging the residual slag into a slag pool, stirring for 1 hour, adding zymocyte and deodorant bacteria from an auxiliary material port, and performing secondary fermentation for about 1 hour;
(c) after the secondary fermentation, controlling the flow rate by the third fermentation tank 3, pumping into the third fermentation tank 3, separating and extracting earthworm protein, adding hydrolase and 1 ton of water into the earthworm protein, stirring, performing tertiary fermentation for 2 hours, discharging residual slag in the tertiary fermentation into a slag pool, pumping the obtained composite earthworm liquid into a storage tank 5 by a third water pump 8, diluting the storage tank 5 according to 200-300:1 and 300-500:1, and respectively flowing into two sedimentation tanks 9 according to different gradients.
The composite earthworm liquid is used in the nutrient liquid membrane technology, can effectively provide help for the supply of nutrients in the later growth stage of crops as NFT nutrient liquid, plays a certain role in sustained and controlled release, and can be effectively regulated and controlled according to the growth requirements of different crops.
Embodiments of the present invention will be described in detail below with reference to examples, but it will be understood by those skilled in the art that the following examples are only illustrative of the present invention and should not be construed as limiting the scope of the present invention. The examples, in which specific conditions are not specified, were conducted under conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products commercially available.
Example 1
The preparation method of the composite earthworm liquid provided by the embodiment specifically comprises the following steps:
(a) crushing the cow dung and the straws, wherein the cow dung and the straws are waste materials of the breeding industry and the planting industryThe waste is reasonably proportioned by means of crushing, turning and throwing, adopts strip stack type treatment, and uses turning and throwing machine to make primary aerobic fermentation for 1 day, then the earthworm is fed, its variety is Daping No. two, and its feeding quantity is 2000 strips/m2The culture environment is as follows: the room temperature is 24 ℃, and the water content is 12 percent;
(b) the growth time of the earthworms is about 20 days, the spawning and hatching time is about 28 days, when the growth rate of the earthworms is 26%, the earthworms are separated to obtain a byproduct organic fertilizer, and the organic fertilizer can be directly used in soil without secondary fermentation, thereby playing the roles of soil conservation and soil moisture conservation;
after the earthworms are extracted, putting 320Kg of earthworms into a first fermentation tank 1, meanwhile, proportioning water with the volume of 500Kg, crushing and stirring for about 1 hour, and then adding nutrient substances and trace elements;
the nutrient substances mainly comprise the following components in percentage by mass:
Ca(NO3)2·4H2O 612.3g/L、KNO3 322g/L、KH2PO456g/L and MgSO4·7H2O129g/L；
The trace elements mainly comprise the following components in percentage by mass:
H3BO3 1.19g/L、MnSO4·4H2O 1.02g/L、Na2Fe·EDTA 11.2g/L、ZnSO4·7H2O 0.18g/L、CuSO4·5H2O 0.04g/L、(NH4)6MoO24·4H2O 0.01g/L；
after fermentation for 1 hour, controlling the flow by the second fermentation tank 2, pumping into the second fermentation tank 2, filtering by a plurality of layers of filter screens (the filter screen is 200 meshes), directly discharging the residual slag into a slag pool, stirring for 1 hour, adding zymocyte and deodorant bacteria from an auxiliary material port, and performing secondary fermentation for about 1 hour;
(c) after the secondary fermentation, controlling the flow rate by the third fermentation tank 3, pumping into the third fermentation tank 3, separating and extracting earthworm protein, adding hydrolase and 1 ton of water into the earthworm protein, stirring, performing tertiary fermentation for 2 hours, discharging residual slag obtained in the tertiary fermentation into a slag pool, pumping the obtained composite earthworm liquid into a storage tank 5 by a third water pump 8, diluting the storage tank 5 according to 200:1 and 300:1, and respectively flowing into two sedimentation tanks 9 according to different gradients.
Example 2
The preparation method of the composite earthworm liquid provided by the embodiment specifically comprises the following steps:
(a) crushing cow dung and straws which are wastes of the breeding industry and the planting industry, reasonably proportioning by means of crushing, turning and throwing, performing strip stack type treatment, performing initial aerobic fermentation by using a turning and throwing machine, and then feeding earthworms 3 days after the initial aerobic fermentation, wherein the variety is Daping No. two, and the input amount is 3000 strips/m2The culture environment is as follows: the water content is 15 percent at the room temperature of 31 ℃;
(b) the growth time of the earthworms is about 20 days, the spawning and hatching time is about 28 days, when the growth rate of the earthworms is 31 percent, the earthworms are separated to obtain a byproduct organic fertilizer, and the organic fertilizer can be directly used in soil without secondary fermentation, thereby playing the roles of soil conservation and soil moisture conservation;
after extracting the earthworms, putting 360Kg of earthworms into a first fermentation tank 1, meanwhile, proportioning water with the amount of 500Kg, crushing and stirring for about 1 hour, and then adding nutrient substances and trace elements;
the nutrient substances mainly comprise the following components in percentage by mass:
Ca(NO3)2·4H2O 652.2g/L、KNO3 345g/L、KH2PO495g/L and MgSO4·7H2O158g/L；
The trace elements mainly comprise the following components in percentage by mass:
H3BO3 1.24g/L、MnSO4·4H2O 1.08g/L、Na2Fe·EDTA 14.54g/L、ZnSO4·7H2O 0.22g/L、CuSO4·5H2O 0.06g/L、(NH4)6MoO24·4H2O 0.03g/L；
after fermentation for 1 hour, controlling the flow by the second fermentation tank 2, pumping into the second fermentation tank 2, filtering by a plurality of layers of filter screens (the filter screen is 200 meshes), directly discharging the residual slag into a slag pool, stirring for 1 hour, adding zymocyte and deodorant bacteria from an auxiliary material port, and performing secondary fermentation for about 1 hour;
(c) after the secondary fermentation, controlling the flow rate by the third fermentation tank 3, pumping into the third fermentation tank 3, separating and extracting earthworm protein, adding hydrolase and 1 ton of water into the earthworm protein, stirring, performing tertiary fermentation for 2 hours, discharging residual slag obtained in the tertiary fermentation into a slag pool, pumping the obtained composite earthworm liquid into a storage tank 5 by a third water pump 8, diluting the storage tank 5 according to 300:1 and 500:1, and respectively flowing into two sedimentation tanks 9 according to different gradients.
Example 3
The preparation method of the composite earthworm liquid provided by the embodiment specifically comprises the following steps:
(a) crushing cow dung and straws which are wastes of the breeding industry and the planting industry, reasonably proportioning by means of crushing, turning and throwing, performing strip stack type treatment, performing initial aerobic fermentation by using a turning and throwing machine, and then throwing earthworms 2 days after the initial aerobic fermentation, wherein the variety is Daping No. two, and the input amount is 2500 strips/m2The culture environment is as follows: the room temperature is 28 ℃, and the water content is 13%;
(b) the growth time of the earthworms is about 20 days, the spawning and hatching time is about 28 days, when the growth rate of the earthworms is 28 percent, the earthworms are separated to obtain a byproduct organic fertilizer, and the organic fertilizer can be directly used in soil without secondary fermentation, thereby playing the roles of soil conservation and soil moisture conservation;
after extracting the earthworms, putting 340Kg of earthworms into a first fermentation tank 1, meanwhile, proportioning about 500Kg of water, crushing and stirring for about 1 hour, and then adding nutrient substances and trace elements;
the nutrient substances mainly comprise the following components in percentage by mass:
Ca(NO3)2·4H2O 630g/L、KNO3 335g/L、KH2PO475g/L and MgSO4·7H2O140g/L；
The trace elements mainly comprise the following components in percentage by mass:
H3BO3 1.20g/L、MnSO4·4H2O 1.06g/L、Na2Fe·EDTA 12.5g/L、ZnSO4·7H2O 0.20g/L、CuSO4·5H2O 0.05g/L、(NH4)6MoO24·4H2O 0.02g/L；
after fermentation for 1 hour, controlling the flow by the second fermentation tank 2, pumping into the second fermentation tank 2, filtering by a plurality of layers of filter screens (the filter screen is 200 meshes), directly discharging the residual slag into a slag pool, stirring for 1 hour, adding zymocyte and deodorant bacteria from an auxiliary material port, and performing secondary fermentation for about 1 hour;
(c) after the secondary fermentation, controlling the flow rate by the third fermentation tank 3, pumping into the third fermentation tank 3, separating and extracting earthworm protein, adding hydrolase and 1 ton of water into the earthworm protein, stirring, performing tertiary fermentation for 2 hours, discharging residual slag obtained in the tertiary fermentation into a slag pool, pumping the obtained composite earthworm liquid into a storage tank 5 by a third water pump 8, diluting the storage tank 5 according to 250:1 and 400:1, and respectively flowing into two sedimentation tanks 9 according to different gradients.
Experimental example 1 tomato planting
The tomatoes are planted in an anhydrous mode by using the nutrient solution of the example 1 and the comparative example. The effect of the yield, the experimental results are shown in table 1.
TABLE 1 Effect of different treatments on tomato yield
Treatment of Fruit number/number of single plant Weight of single fruit (g) Yield per gram of individual plant
Example 1 9 112 1008
Comparative example 7 103 721
The effect of fruit quality is shown in table 2.
TABLE 2 Effect of different treatments on fruit quality
Figure BDA0002744816490000091
In conclusion, compared with the nutrient solution in the prior art, when the composite earthworm solution provided by the invention is used for planting tomatoes, the yield and the quality of the composite earthworm solution are superior to those of the comparative nutrient solution, and the average yield increase rate of a single plant is 39.8%. By applying the composite earthworm liquid, the vitamin C, the organic acid, the soluble sugar and the soluble solid in the fruit are obviously higher than the tomatoes planted in the comparative example nutrient solution.
While particular embodiments of the present invention have been illustrated and described, it will be appreciated that the above embodiments are merely illustrative of the technical solution of the present invention and are not restrictive; those of ordinary skill in the art will understand that: modifications may be made to the above-described embodiments, or equivalents may be substituted for some or all of the features thereof without departing from the spirit and scope of the present invention; the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention; it is therefore intended to cover in the appended claims all such alternatives and modifications that are within the scope of the invention.

Claims (10)

1. The preparation method of the composite earthworm liquid is characterized by comprising the following steps:
(a) after the cow dung and the straws are crushed, aerobic fermentation is carried out, and earthworm seedlings are put into the crushed cow dung and the straws for feeding;
(b) when the earthworm growth rate is 26% -31%, separating earthworms to obtain an organic fertilizer; adding water into Lumbricus, pulverizing, stirring, adding nutrient substances, microelements and anaerobic bacteria, performing anaerobic fermentation, performing solid-liquid separation, adding zymophyte and deodorizing bacteria, and performing secondary fermentation;
(c) after the second-stage fermentation, earthworm protein is separated, hydrolase and water are added into the earthworm protein, and after the third-stage fermentation, composite earthworm liquid is obtained by dilution, precipitation and separation;
preferably, the dilution is carried out according to the mass ratio of water to the earthworm liquid after the three-stage fermentation of 200-300:1 and 300-500: 1.
2. The method for preparing composite earthworm liquid according to claim 1, wherein in step (a), the carbon-nitrogen ratio of the cow dung to the straws is 24-26: 1;
preferably, the aerobic fermentation is carried out for 1 to 3 days by adopting a strip-stack type treatment.
3. The method for preparing composite earthworm solution according to claim 1, wherein the earthworm is added in an amount of 2000-3000 pieces/m in step (a)2；
Preferably, the raising conditions are that the temperature is 24-31 ℃, and the water content is kept at 12% -15%;
preferably, the earthworms are grown for 18 to 22 days, and then spawning and hatching time is 28 to 30 days.
4. The method for preparing composite earthworm solution according to claim 1, wherein the anaerobic fermentation time in step (b) is 1-2 hours.
5. The method for preparing composite earthworm solution according to claim 1, wherein in step (b), the nutrient substances mainly comprise the following components in mass concentration:
Ca(NO3)2·4H2O 612.3-652.2g/L、KNO3 322-345g/L、KH2PO456-95g/L and MgSO4·7H2O 129-158g/L。
6. The method for preparing a composite earthworm solution according to claim 1, wherein in the step (b), the trace elements mainly comprise the following components in terms of mass concentration:
H3BO3 1.19-1.24g/L、MnSO4·4H2O 1.02-1.08g/L、Na2Fe·EDTA 11.2-14.54g/L、ZnSO4·7H2O 0.18-0.22g/L、CuSO4·5H2O 0.04-0.06g/L、(NH4) 6MoO24·4H2O 0.01-0.03g/L。
7. the method for preparing composite earthworm solution according to claim 1, wherein in step (c), the time for the tertiary fermentation is 2-3 hours.
8. The composite earthworm liquid prepared by the method for preparing the composite earthworm liquid according to any one of claims 1-7.
9. The use of the composite earthworm solution according to claim 8 in nutrient solution membrane technology.
10. A production device of composite earthworm liquid, which is suitable for the preparation method of the composite earthworm liquid as defined in any one of claims 1-7, is characterized by comprising a first fermentation tank, a second fermentation tank, a third fermentation tank, a slag pond and a storage tank which are connected in sequence;
a first water suction pump is arranged in the second fermentation tank and connected with the first fermentation tank through a pipeline;
a second water suction pump is arranged in the third fermentation tank and connected with the second fermentation tank through a pipeline;
a third water suction pump is arranged in the storage tank and connected with the third fermentation tank through a pipeline;
the first fermentation tank, the second fermentation tank and the third fermentation tank are all connected with a slag pond below;
the third fermentation cylinder with the storage tank is connected, the bottom of storage tank still is connected with two sedimentation tanks.
CN202011162880.4A 2020-10-27 2020-10-27 Composite earthworm liquid and preparation method, device and application thereof Pending CN112321339A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT202100014126A1 (en) * 2021-05-28 2022-11-28 Leonardo Bordi PROCESS AND PLANT TO REDUCE STINKY EMISSIONS OF LANDFILL LEATHER.

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US5356637A (en) * 1990-01-12 1994-10-18 Tessenderlo Chemie N.V. Method for preparing an enzymatic hydrolysate
CN105330388A (en) * 2014-08-06 2016-02-17 天津贾立明蚯蚓养殖有限公司 Earthworm amino acid stable organic-inorganic soil conditioner and processing technology thereof
CN105360789A (en) * 2014-08-18 2016-03-02 天津鑫泽众生物技术有限公司 Edible earthworm protein nutrition granules and processing process thereof
CN105967761A (en) * 2016-05-26 2016-09-28 陈可夫 Method for producing amino acid water-soluble fertilizer by utilizing Drawida Japonica Michelsen
CN106954590A (en) * 2016-05-17 2017-07-18 太仓市农业技术推广中心 A kind of method that vermiculture is carried out using cow dung
CN108902988A (en) * 2018-08-15 2018-11-30 湖南军创生物科技有限公司 A kind of processing method of selenium-rich ferment

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Publication number Priority date Publication date Assignee Title
US5356637A (en) * 1990-01-12 1994-10-18 Tessenderlo Chemie N.V. Method for preparing an enzymatic hydrolysate
CN105330388A (en) * 2014-08-06 2016-02-17 天津贾立明蚯蚓养殖有限公司 Earthworm amino acid stable organic-inorganic soil conditioner and processing technology thereof
CN105360789A (en) * 2014-08-18 2016-03-02 天津鑫泽众生物技术有限公司 Edible earthworm protein nutrition granules and processing process thereof
CN106954590A (en) * 2016-05-17 2017-07-18 太仓市农业技术推广中心 A kind of method that vermiculture is carried out using cow dung
CN105967761A (en) * 2016-05-26 2016-09-28 陈可夫 Method for producing amino acid water-soluble fertilizer by utilizing Drawida Japonica Michelsen
CN108902988A (en) * 2018-08-15 2018-11-30 湖南军创生物科技有限公司 A kind of processing method of selenium-rich ferment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT202100014126A1 (en) * 2021-05-28 2022-11-28 Leonardo Bordi PROCESS AND PLANT TO REDUCE STINKY EMISSIONS OF LANDFILL LEATHER.

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