CN110590446A - Method for preparing liquid seaweed fertilizer by using kelp as raw material - Google Patents
Method for preparing liquid seaweed fertilizer by using kelp as raw material Download PDFInfo
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- CN110590446A CN110590446A CN201910907988.2A CN201910907988A CN110590446A CN 110590446 A CN110590446 A CN 110590446A CN 201910907988 A CN201910907988 A CN 201910907988A CN 110590446 A CN110590446 A CN 110590446A
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- kelp
- seaweed fertilizer
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
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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
- C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
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- 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
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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
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- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- Biotechnology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Microbiology (AREA)
- Molecular Biology (AREA)
- Fertilizers (AREA)
- Cultivation Of Seaweed (AREA)
Abstract
The invention discloses a method for preparing a liquid seaweed fertilizer by using kelp as a raw material, which relates to the field of fertilizer production and mainly comprises the following steps: (1) cleaning, airing and crushing the kelp; (2) preparing a phosphate kelp softening buffering agent; (3) softening the kelp; (4) performing enzymolysis on the kelp; (5) and (6) filtering and packaging. In the invention, under the condition of moderate temperature and neutral PH, nutrient substances and endogenous active substances in kelp are extracted by an enzymolysis technology to prepare the liquid seaweed fertilizer; the invention can completely maintain the activity of the nutrient substances and endogenous active substances of the kelp, and solve the problem that the nutrient substances and endogenous active substances of the kelp are damaged under high temperature or strong acid and alkali conditions; the seaweed fertilizer prepared by the invention is a green, safe and efficient fertilizer, can reduce the application of chemical fertilizers, can solve soil hardening and salinization, can promote the propagation of beneficial microorganisms in soil, and can restore the ecological environment of the soil.
Description
Technical Field
The invention relates to the field of fertilizer production, in particular to a method for producing a liquid seaweed fertilizer by using kelp as a raw material through enzymolysis of the kelp.
Background
The kelp is one of original producers of marine organic matters, has extremely rich and balanced nutrition, and contains a plurality of organic iodides, mannitol, alginic acid, fucoidan, betaine, indoleacid, cytokinin and vitamins which are incomparable with land plants; the kelp grows in a high-salt, low-temperature and low-light marine environment, and endogenous active substances in the kelp are far higher than those in land plants, so that nutrient substances and endogenous active substances are extracted from the kelp, the kelp is prepared into a seaweed fertilizer which is applied to crop planting, and the kelp fertilizer has an outstanding using effect; the existing technical method for manufacturing the seaweed fertilizer mainly comprises an acid extraction method, an alkali extraction method and an acid-alkali mixed extraction method, wherein the method needs to be carried out under strong acid-alkali and high-temperature conditions, the extraction conditions can damage endogenous active substances of the kelp, and the seaweed fertilizer has more residual substances, so that the quality and the using effect of the seaweed fertilizer are influenced. With the development of biotechnology, the method for enzymolysis of kelp becomes one of the methods capable of retaining kelp nutrients and endogenous active substances to the greatest extent, the seaweed fertilizer manufactured by the method is a green and safe high-efficiency fertilizer, can reduce the application of chemical fertilizers and maintain the ecological environment, can replace chemical fertilizers after long-term application, can solve soil hardening and salinization, can promote the propagation of beneficial microorganisms in soil, can adjust the vegetative growth and reproductive growth of crops, and can improve the yield and quality of the crops.
Disclosure of Invention
The invention aims to extract nutrient substances and endogenous active substances in kelp by a biological enzymolysis technology under the conditions of proper mild temperature and neutral PH to prepare a liquid seaweed fertilizer; the invention can completely maintain the activity of the nutrient substances and endogenous active substances of the kelp and solve the problem of destroying the nutrient substances and endogenous active substances of the kelp under the conditions of high temperature or strong acid and alkali.
The invention provides a method for preparing a liquid seaweed fertilizer by using kelp as a raw material, which comprises the following steps:
(1) cleaning the kelp, and drying the kelp on an air-drying rack;
(2) pulverizing the dried kelp into fine particles of 100 meshes;
(3) preparing a phosphate kelp softening buffering agent, uniformly mixing sodium hydroxide and dipotassium hydrogen phosphate according to the mass ratio of 0.4:1, grinding and crushing uniformly, and sealing for later use;
(4) adding the 100-mesh kelp fine particles crushed in the step (2) and water in a mass ratio of 1:9 into a continuous flow stirring type reactor, heating to 42 ℃, and keeping the temperature;
(5) adding the phosphate kelp softening buffering agent prepared in the step (3) into a continuous flow stirring type reactor, wherein the adding amount is 5% of the weight of the dry kelp added in the step (4), keeping the temperature of 42 ℃ constant, and continuously stirring for 3 hours at the stirring speed of 40-60 r/min;
(6) after the step (5) is finished, keeping the temperature at 42 ℃, and sequentially adding cellulase, pectinase and protease into the reactor; adding cellulase, pectinase and protease 1-2 wt% of the dry herba Zosterae Marinae in step (4), keeping at 42 deg.C, and stirring for 3 hr at 40-60 r/min;
(7) filtering the materials in the reactor by adopting a van-type plate-and-frame filter press, wherein the filtrate is the liquid seaweed fertilizer prepared by enzymolysis of the kelp;
(8) the liquid seaweed fertilizer is immediately hermetically packaged and stored.
The invention also provides a liquid seaweed fertilizer prepared by the process, which contains kelp nutrient substances and endogenous active substances.
The invention provides a method for preparing a liquid seaweed fertilizer by using kelp as a raw material, which adopts an enzymolysis method and is carried out under mild temperature conditions and neutral pH conditions, and the process has the following advantages:
(1) the seaweed fertilizer prepared by the invention can retain seaweed nutrient substances and endogenous active substances to the maximum extent, is easy to dissolve in water and is convenient to use;
(2) the seaweed fertilizer prepared by the invention is a green, safe and efficient fertilizer, can reduce the application of chemical fertilizer, maintain the ecological environment, can replace the chemical fertilizer after being applied for a long time, can solve soil hardening and salinization, and can promote the propagation of beneficial microorganisms in soil;
(3) the seaweed fertilizer prepared by the invention can be completely and rapidly absorbed by crops, can adjust the vegetative growth and reproductive growth of the crops, improves the stress resistance of the crops, and improves the yield and the quality of the crops.
The specific implementation mode is as follows:
in order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the following embodiments.
Example 1
The liquid seaweed fertilizer is manufactured according to the following steps:
(1) cleaning the kelp, and drying the kelp on an air-drying rack;
(2) pulverizing the dried kelp into fine particles of 100 meshes;
(3) weighing 1.4kg of sodium hydroxide and 3.6kg of dipotassium hydrogen phosphate, mixing and grinding uniformly to prepare a phosphate kelp softener;
(4) adding 900kg of water into a continuous flow stirring type reactor, weighing 100kg of the kelp fine particles of 100 meshes crushed in the step (2), adding into the reactor, stirring and heating to 42 ℃, and rotating at 40-60 r/min;
(5) adding the uniformly ground phosphate kelp softener in the step (3) into the reactor in the step (4), keeping the temperature at 42 ℃, and continuously stirring for 3 hours at the rotating speed of 40-60 r/min;
(6) after the step (5) is finished, keeping the temperature at 42 ℃, sequentially and respectively adding 1kg of cellulase, 1kg of pectinase and 1kg of protease into the reactor, continuously keeping the temperature at 42 ℃, and continuously stirring for 3 hours at the stirring speed of 40-60 r/min;
(7) filtering the materials in the reactor by adopting a van-type plate-and-frame filter press, wherein the filtrate is the liquid seaweed fertilizer prepared by enzymolysis of the kelp;
(8) and (5) immediately carrying out sealed packaging after discharging the liquid seaweed fertilizer, and storing.
Example 2
The liquid seaweed fertilizer is manufactured according to the following steps:
(1) the kelp is cleaned and dried in the sun on an airing rack,
(2) pulverizing the dried kelp into fine particles of 100 meshes;
(3) weighing 1.4kg of sodium hydroxide and 3.6kg of dipotassium hydrogen phosphate, mixing and grinding uniformly to prepare a phosphate kelp softener;
(4) adding 900kg of water into a continuous flow stirring type reactor, weighing 100kg of the kelp fine particles of 100 meshes crushed in the step (2), adding into the reactor, stirring and heating to 42 ℃, and rotating at 40-60 r/min;
(5) adding the uniformly ground phosphate kelp softener in the step (3) into the reactor in the step (4), keeping the temperature at 42 ℃, and continuously stirring for 3 hours at the rotating speed of 40-60 r/min;
(6) after the step (5) is finished, keeping the temperature at 42 ℃, sequentially and respectively adding 1.5kg of cellulase, 1.5kg of pectinase and 1.5kg of protease into the reactor, continuously keeping the temperature at 42 ℃, and continuously stirring for 3 hours at the stirring speed of 40-60 r/min;
(7) filtering the materials in the reactor by adopting a van-type plate-and-frame filter press, wherein the filtrate is the liquid seaweed fertilizer prepared by enzymolysis of the kelp;
(8) and (5) immediately carrying out sealed packaging after discharging the liquid seaweed fertilizer, and storing.
Example 3
The liquid seaweed fertilizer is manufactured according to the following steps:
(1) the kelp is cleaned and dried in the sun on an airing rack,
(2) pulverizing the dried kelp into fine particles of 100 meshes;
(3) weighing 1.4kg of sodium hydroxide and 3.6kg of dipotassium hydrogen phosphate, mixing and grinding uniformly to prepare a phosphate kelp softener;
(4) adding 900kg of water into a continuous flow stirring type reactor, weighing 100kg of the kelp fine particles of 100 meshes crushed in the step (2), adding into the reactor, stirring and heating to 42 ℃, and rotating at 40-60 r/min;
(5) adding the uniformly ground phosphate kelp softener in the step (3) into the reactor in the step (4), keeping the temperature at 42 ℃, and continuously stirring for 3 hours at the rotating speed of 40-60 r/min;
(6) after the step (5) is finished, keeping the temperature at 42 ℃, sequentially and respectively adding 2kg of cellulase, 2kg of pectinase and 2kg of protease into the reactor, continuously keeping the temperature at 42 ℃, and continuously stirring for 3 hours at the stirring speed of 40-60 r/min;
(7) filtering the materials in the reactor by adopting a van-type plate-and-frame filter press, wherein the filtrate is the liquid seaweed fertilizer prepared by enzymolysis of the kelp;
(8) and (5) immediately carrying out sealed packaging after discharging the liquid seaweed fertilizer, and storing.
Test example 1
The product of the invention and the seaweed fertilizer prepared by the acid-base method in the market are respectively used for planting Kyoho grapes, and other conditions such as fertilizing amount, fertilizing time and the like in the planting process are kept the same. The average single-ear weight, the average single-ear fruit number and the disease rate obtained by planting the two are recorded in the following table:
| average weight of single ear | Average number of single ear fruit | Disease rate | |
| The product | 0.52kg | 39 granules | 0.8% |
| Commercial seaweed fertilizer prepared by acid-alkali method | 0.43kg | 33 granules | 1.5% |
The method for producing the liquid seaweed fertilizer using the kelp as the raw material and the liquid seaweed fertilizer provided by the invention are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the core concepts of the present invention. It should be noted that it would be apparent to those skilled in the art that several modifications and variations can be made to the present invention without departing from the principles of the invention. Such improvements and modifications are intended to be within the scope of the appended claims.
Claims (7)
1. A method for preparing a liquid seaweed fertilizer by using kelp as a raw material is characterized by sequentially comprising the following steps:
(1) cleaning the kelp, and drying the kelp on an air-drying rack;
(2) pulverizing the dried kelp into fine particles of 100 meshes;
(3) preparing a phosphate kelp softening buffering agent, uniformly mixing sodium hydroxide and dipotassium hydrogen phosphate according to the mass ratio of 0.4:1, grinding and crushing uniformly, and sealing for later use;
(4) adding the 100-mesh kelp fine particles crushed in the step (2) and water in a mass ratio of 1:9 into a continuous flow stirring type reactor, heating to 42 ℃, and keeping the temperature;
(5) adding the phosphate kelp softening buffering agent prepared in the step (3) into a continuous flow stirring type reactor, wherein the adding amount is 5% of the weight of the dry kelp added in the step (4), keeping the temperature of 42 ℃ constant, and continuously stirring for 3 hours at the stirring speed of 40-60 r/min;
(6) after the step (5) is finished, keeping the temperature at 42 ℃, sequentially adding cellulase, pectinase and protease into the reactor, wherein the adding mass of the cellulase, the pectinase and the protease is respectively 1-2% of the weight of the dry kelp added in the step (4), continuously keeping the temperature at 42 ℃, and continuously stirring for 3 hours at the stirring speed of 40-60 r/min;
(7) and filtering the materials in the reactor by adopting a van-type plate-and-frame filter press to obtain a filtrate, namely the liquid seaweed fertilizer prepared by enzymolysis of the kelp.
2. The method for preparing liquid seaweed fertilizer using kelp as raw material according to claim 1, wherein the dried kelp is pulverized into fine particles of 100 mesh in step (2).
3. The method for preparing a liquid seaweed fertilizer using kelp as a raw material according to claim 1, wherein a phosphate kelp softening buffer is prepared in the step (3), sodium hydroxide and dipotassium hydrogen phosphate are uniformly mixed in a mass ratio of 0.4:1, and the mixture is ground and pulverized uniformly and sealed for later use.
4. The method for preparing a liquid seaweed fertilizer using kelp as a raw material according to claim 1, wherein the kelp fine particles of 100 mesh in step (4) are added to a continuous flow agitation type reactor at a mass ratio of 1:9, heated to 42 ℃ and maintained at the temperature.
5. The method for preparing liquid seaweed fertilizer using kelp as raw material according to claim 1, wherein the amount of phosphate kelp softening buffer added in step (5) is 5% of the weight of the dry kelp added in step (4), and the mixture is kept at a constant temperature of 42 ℃ and continuously stirred for 3 hours at a stirring speed of 40-60 r/min.
6. The method for preparing a liquid seaweed fertilizer using kelp as a raw material according to claim 1, wherein the mass of the cellulase, pectinase and protease sequentially added into the reactor in the step (6) is 1-2% of the weight of the dry kelp added in the step (4), the temperature is continuously maintained at 42 ℃ and the stirring is continuously carried out for 3 hours at a stirring speed of 40-60 r/min.
7. The method for preparing liquid seaweed fertilizer using kelp as raw material according to claim 1, wherein a van-type plate-and-frame filter press is used to filter the materials in the reactor, and the filtrate is the liquid seaweed fertilizer prepared by enzymolysis of kelp.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910907988.2A CN110590446A (en) | 2019-09-25 | 2019-09-25 | Method for preparing liquid seaweed fertilizer by using kelp as raw material |
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| CN201910907988.2A CN110590446A (en) | 2019-09-25 | 2019-09-25 | Method for preparing liquid seaweed fertilizer by using kelp as raw material |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111848259A (en) * | 2020-08-04 | 2020-10-30 | 句容市同力生物科技有限公司 | Fertilizer for leaf vegetable cultivation and preparation method thereof |
| CN112624842A (en) * | 2020-12-22 | 2021-04-09 | 威海长青海洋科技股份有限公司 | Method for preparing seaweed compound fertilizer |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102276326A (en) * | 2011-07-04 | 2011-12-14 | 中国农业科学院农业资源与农业区划研究所 | Sargassum organic liquid fertilizer and preparation method thereof |
| CN106748195A (en) * | 2016-12-28 | 2017-05-31 | 烟台泓源生物肥料有限公司 | A kind of fertilizer and its preparation technology containing natural plants growth substance |
| CN109704858A (en) * | 2019-01-21 | 2019-05-03 | 李永兴 | A kind of method of temperate condition production alga fertilizer |
-
2019
- 2019-09-25 CN CN201910907988.2A patent/CN110590446A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102276326A (en) * | 2011-07-04 | 2011-12-14 | 中国农业科学院农业资源与农业区划研究所 | Sargassum organic liquid fertilizer and preparation method thereof |
| CN106748195A (en) * | 2016-12-28 | 2017-05-31 | 烟台泓源生物肥料有限公司 | A kind of fertilizer and its preparation technology containing natural plants growth substance |
| CN109704858A (en) * | 2019-01-21 | 2019-05-03 | 李永兴 | A kind of method of temperate condition production alga fertilizer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111848259A (en) * | 2020-08-04 | 2020-10-30 | 句容市同力生物科技有限公司 | Fertilizer for leaf vegetable cultivation and preparation method thereof |
| CN112624842A (en) * | 2020-12-22 | 2021-04-09 | 威海长青海洋科技股份有限公司 | Method for preparing seaweed compound fertilizer |
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