CN110105147B - Liquid fertilizer and preparation method thereof - Google Patents
Liquid fertilizer and preparation method thereof Download PDFInfo
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- CN110105147B CN110105147B CN201910557417.0A CN201910557417A CN110105147B CN 110105147 B CN110105147 B CN 110105147B CN 201910557417 A CN201910557417 A CN 201910557417A CN 110105147 B CN110105147 B CN 110105147B
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- nutrient substances
- liquid fertilizer
- metronidazole
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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
- C05C—NITROGENOUS FERTILISERS
- C05C1/00—Ammonium nitrate fertilisers
-
- 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
- C05G3/80—Soil conditioners
-
- 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
- C05G3/90—Mixtures of one or more fertilisers with additives not having a specially fertilising activity for affecting the nitrification of ammonium compounds or urea in the soil
-
- 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
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
- Y02P60/21—Dinitrogen oxide [N2O], e.g. using aquaponics, hydroponics or efficiency measures
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Soil Sciences (AREA)
- Fertilizers (AREA)
Abstract
The invention relates to a liquid fertilizer and a preparation method thereof, the liquid fertilizer consists of inorganic nutrient substances, organic nutrient substances and water, and is characterized by containing metronidazole. The invention can prevent the liquid fertilizer from expanding bottles, reduce the fertilizer loss and stabilize the fertilizer quality, and meanwhile, the invention can also improve the utilization rate of the fertilizer in soil.
Description
Technical Field
The invention relates to a liquid fertilizer and a preparation method thereof.
Background
Water-Soluble Fertilizer (Water Soluble Fertilizer for short)WSF) Is a multi-element compound fertilizer which can be completely dissolved in water, can be quickly dissolved in water, can be more easily absorbed by crops, and can be absorbed by cropsUtilization rateRelatively high, and more importantly, it can be applied to sprayingDrip irrigationEqual facility agriculture, realizationWater and fertilizer integrationThereby achieving the effects of saving water, fertilizer and labor. The liquid fertilizer is used as one of water soluble fertilizers, has the advantages of rapidness and convenience in use compared with powdery fertilizers, is widely applied in the countries where drip irrigation technology and automatic fertilization are popularized, accounts for 38% of all fertilizers in the United states, and almost all the fertilizers in Israel fields. Australia, france, germany, spain, romania, etc. are countries where liquid fertilizers are used in large quantities.
However, liquid fertilizers are generally stored in a closed container due to good fluidity, and the problems of bottle expansion and bottle suction usually exist in the storage process, so that the problem of bottle suction at present is mainly solved by adopting a cooling mode, so that gaseous steam is cooled into liquid, gas cooling after packaging is prevented, and bottle suction is caused due to volume reduction; when the problem of bottle expansion is solved, the mode of heating, cooling and adding the defoaming agent is usually adopted to expel the air in the liquid, the method can really prevent the bottle expansion phenomenon in a short time, but the bottle expansion phenomenon still occurs along with the prolonging of the storage time, and even a small amount of sediment is generated at the bottom of a container sometimes, so that the product quality is seriously influenced.
Due to unreasonable fertilization and management, the soil for cultivation has problems such as acidification and hardening, the demand of the soil for fertilizer is increased, the fertilization is increased, the utilization rate is reduced, and the zero-growth task of fertilizer agriculture faces challenges.
At present, no method for solving the bottle expansion phenomenon caused by long-term storage of the liquid fertilizer exists, the problem of precipitation caused by long-term storage of the liquid fertilizer does not exist, and the liquid fertilizer which is applied to acidized and hardened soil and can improve the utilization rate of the fertilizer does not exist.
Disclosure of Invention
The invention provides a liquid fertilizer and a preparation method thereof, which solve the technical problems that 1) the liquid fertilizer is stored for a long time to generate bottle expansion; 2) the liquid fertilizer is stored for a long time, and sediment is formed at the bottom; 3) the utilization rate of the fertilizer in the acidified hardened soil is improved.
In order to solve the technical problems, the invention adopts the following technical scheme:
a liquid fertilizer comprises inorganic nutrient substances, organic nutrient substances and water, and contains metronidazole.
The inorganic nutrient substances comprise one or more of macroelements, secondary elements and trace elements in any proportion;
the organic nutrient substances comprise one or more than two of potassium humate, sodium humate, humic acid, potassium fulvate, amino acid, vitamin, molasses liquid, yeast powder and seaweed extract in any proportion;
the macroelements are nitrogen, phosphorus and potassium; the secondary elements are calcium, magnesium and sulfur; the microelements comprise boron, zinc, ferrum, molybdenum and manganese.
Also contains nitrification inhibitor.
Also contains defoaming agent.
The preparation method of the liquid fertilizer comprises the steps of uniformly mixing inorganic nutrient substances, organic nutrient substances, water and metronidazole to obtain the liquid fertilizer; or
Mixing inorganic nutrient substances, organic nutrient substances, water, metronidazole and nitrification inhibitor uniformly to obtain a liquid fertilizer;
the mass ratio of the inorganic nutrient substances to the organic nutrient substances to the water to the metronidazole to the nitrification inhibitor is 4-60: 1-40: 5-94: 0.01-1: 0-1.
Also comprises adding defoaming agent after mixing evenly; the addition amount of the defoaming agent is 0.1-0.5% of the total mass.
The invention has the following beneficial technical effects:
1. the liquid fertilizer bottle that rises problem can effectively be solved to this application to can make the fertile long-term storage bottom of liquid deposit not appear. After the temperature is raised and the defoaming agent is used for expelling the gas in the liquid fertilizer, part of aerobic bacteria are consumed in the storage process, so that the liquid fertilizer is in an anoxic state in long-term storage, and a moving space is provided for anaerobic bacteria. The reactions existing in the liquid fertilizer are nitrification reaction in aerobic state, denitrification reaction in anaerobic state and sulfuric acid reduction reaction, inexhaustible oxygen begins to exist, and the nitrification reaction, specifically NH, is carried out under the action of nitrifying bacteria4 ++1.5O2—NO2 -+H2O+2H-，NO2 -+0.5O2-- NO3 -(ii) a With the prolonged storage time and the exhaustion of oxygen, the anaerobic denitrifying bacteria begin to actively carry out the denitrification reaction, specifically NO2 -+3H (Electron Donor-organic) - - -0.5N2+H2O+OH-；NO3 -+5H (Electron Donor-organic) - - -0.5N2+2H2O+OH-(ii) a Reduction reaction of reducing bacteria of sulfuric acid to C under anaerobic condition6H12O2+3H2SO4—6CO2+6H2O+H2S；S2-+Zn2+- - -ZnS (precipitation). This application is through adding metronidazole suppression and killing anaerobe to prevented that liquid fertilizer in long-term storage process, because of the oxygen deficiency arouses rise bottle and the problem that the bottom has the sediment, and prevent macroelement NH4 +Conversion to N2Causing loss of nutrients.
2. The application also adds a nitrification inhibitor and metronidazole, firstly, the nitrification reaction is inhibited from the source, and the reactant NO in the denitrification reaction is reduced2 -And NO3 -=Secondly, anaerobic bacteria are inhibited and killed by metronidazole, and denitrification and sulfuric acid reduction reaction are reduced, so that bottle expansion and sulfuric acid reduction of liquid fertilizer are better solved,Precipitation and nutrient waste.
3. The nitrification inhibitor and the metronidazole are added, and the nitrification inhibitor prolongs NH4+ to NO by inhibiting nitrobacteria3 -The conversion time of the fertilizer can play a role of slow release, prolong the fertilizer efficiency and prevent the loss of nitrogen; metronidazole further prevents NO3 -To N2The transformation further improves the utilization rate of nitrogen, and the combination of the nitrification inhibitor and metronidazole can further prolong the fertilizer efficiency of the fertilizer and improve the utilization rate of the fertilizer. The metronidazole and the nitrification inhibitor are added to further solve the problem of low nitrogen utilization rate in hardened soil, and the metronidazole and the nitrification inhibitor complement each other to further improve the crop yield and the fertilizer utilization rate.
Detailed Description
The present invention is further illustrated by the following specific examples.
Example 1
A liquid fertilizer comprises inorganic nutrient substances, organic nutrient substances, water and defoamer, and contains metronidazole.
The inorganic nutrient substances are a composition of macroelements, secondary elements and trace elements according to a mass ratio of 90:5: 5; the defoaming agent was purchased from field chemical, model AT-720B.
The organic nutrient substances are a composition of potassium fulvate and seaweed extract according to a mass ratio of 3: 1;
the macroelement is a composition of ammonium nitrate, urea and potassium sulfate according to a mass ratio of 3:2: 2; the secondary element is magnesium sulfate; the microelement is EDTA-Zn.
The preparation method of the liquid fertilizer is characterized in that inorganic nutrient substances, organic nutrient substances, water and metronidazole are mixed uniformly, and a defoaming agent is added to obtain the liquid fertilizer.
The mass ratio of the inorganic nutrient substances to the organic nutrient substances to the water to the metronidazole to the defoaming agent is 21:10:68.5:0.3: 0.2.
Example 2
A liquid fertilizer comprises inorganic nutrient substances, organic nutrient substances, water and defoamer, and contains metronidazole and nitrification inhibitor; the nitrification inhibitor is DMPP purchased from Yuntang Fine chemical Co., Ltd.
The inorganic nutrient substances are a composition of macroelements, secondary elements and trace elements according to a mass ratio of 90:5: 5; the defoaming agent was purchased from field chemical, model AT-720B.
The organic nutrient substances are a composition of potassium fulvate and seaweed extract according to a mass ratio of 3: 1;
the macroelement is a composition of ammonium nitrate, urea and potassium sulfate according to a mass ratio of 3:2: 2; the secondary element is magnesium sulfate; the microelement is EDTA-Zn.
The preparation method of the liquid fertilizer is characterized in that inorganic nutrient substances, organic nutrient substances, water, DMPP and metronidazole are mixed uniformly, and a defoaming agent is added to obtain the liquid fertilizer.
The mass ratio of the inorganic nutrient substances to the organic nutrient substances to the water to the DMPP to the metronidazole to the defoaming agent is 21:10:68.4:0.1:0.3: 0.2.
Example 3
A liquid fertilizer comprises inorganic nutrient substances, organic nutrient substances and water, and contains metronidazole.
The inorganic nutrient substances are potassium nitrate, ammonium sulfate and monopotassium phosphate according to the mass ratio of 8:1: 3;
the organic nutrient substance is a composition of potassium humate and potassium fulvate according to a mass ratio of 1: 2;
also contains nitrification inhibitor.
Also contains defoaming agent.
The preparation method of the liquid fertilizer comprises the steps of uniformly mixing inorganic nutrient substances, organic nutrient substances, water, nitrification inhibitor and metronidazole, adding the defoaming agent, and uniformly mixing to obtain the liquid fertilizer;
the mass ratio of the inorganic nutrient substances to the organic nutrient substances to the water to the metronidazole to the nitrification inhibitor to the antifoaming agent is 5:20:74:0.2:0.3: 0.5.
Example 4
A liquid fertilizer comprises inorganic nutrient substances, organic nutrient substances and water, and contains metronidazole.
The inorganic nutrient substances are macroelements and medium elements;
the organic nutrient substances are a composition of amino acid, molasses liquid, yeast powder and seaweed extract according to a mass ratio of 5:1:2: 3;
the macroelements contain nitrogen, phosphorus and potassium; the secondary elements contain calcium, magnesium and sulfur; the trace elements contain boron and zinc.
Also contains defoaming agent.
Mixing inorganic nutrient substances, organic nutrient substances, water and metronidazole, adding defoaming agent, and mixing to obtain liquid fertilizer;
the mass ratio of the inorganic nutrient substances to the organic nutrient substances to the water to the metronidazole to the defoaming agent is 30:15:64.2:0.5: 0.3.
Example 5
A liquid fertilizer comprises inorganic nutrient substances, organic nutrient substances and water, and contains metronidazole.
The inorganic nutrient is a macroelement;
the organic nutrient substances are a composition of potassium humate, amino acid and vitamin according to a mass ratio of 1:1: 1;
the macroelements are nitrogen, phosphorus and potassium; the secondary elements are calcium, magnesium and sulfur; the microelements comprise boron, zinc, ferrum, molybdenum and manganese.
Also contains a nitrification inhibitor; the nitrification inhibitor is dicyandiamide.
Also contains defoaming agent.
Mixing inorganic nutrient substances, organic nutrient substances, water, metronidazole and nitrification inhibitor, adding defoaming agent, and mixing to obtain liquid fertilizer;
the mass ratio of the inorganic nutrient substances to the organic nutrient substances to the water to the metronidazole to the nitrification inhibitor to the antifoaming agent is 30:5:64.7:0.05:0.05: 0.2.
Example 6
A liquid fertilizer comprises inorganic nutrient substances, organic nutrient substances and water, and contains metronidazole.
The beneficial effects of the present invention are further illustrated below in conjunction with experimental data:
experiment one
Test material
1, materials and methods:
1.1 test site: shandong Eiguo Biotech Co., Ltd.
1.2 test detection: observing flatulence and precipitation; and detecting the nitrogen content.
1.3 test materials: comparative 1 (otherwise identical to example 1 except that no metronidazole was added), example 1 and example 2.
1.4 Experimental design: the liquid fertilizers prepared in comparison 1 (except that no metronidazole is added, the other preparation methods are the same as those of example 1), example 1 and example 2 are respectively taken to detect the nitrogen content, then 1L polyethylene bottles are adopted for packaging to ensure sealing, 5 bottles are respectively taken and placed in a constant-temperature oven at 30 ℃ for 60 days, and the nitrogen content is detected by observing the bottle expansion phenomenon and the bottom precipitation condition.
1.5 detection method: and the nitrogen detection adopts a Kjeldahl method.
2 results and analysis are shown in Table 1
TABLE 1
| Inflation number (number) | Precipitation conditions | Nitrogen content (%) | Nitrogen content after experiment (%) | Loss of nitrogen (%) | |
| Comparative example 1 | 4 | Is provided with | 6.34 | 6.27 | 1.1 |
| Example 1 | 0 | Is free of | 6.32 | 6.31 | 0.16 |
| Example 2 | 0 | Is free of | 6.32 | 6.31 | 0.16 |
As can be seen from Table 1, the application can solve the problem of flatulence in long-term storage of the liquid fertilizer, can also solve the problem of precipitation in long-term storage of the liquid fertilizer, and can also reduce the loss of nitrogen during storage.
Experiment two
Test material
1, materials and methods:
1.1 test site: anqiu city, official village and town.
1.2 test detection: corn yield and the content of crude protein in corn stalks and grains.
1.3 test materials: comparative 1 (all preparation methods are the same as those in example 1 except that no metronidazole is added), comparative 2 (all preparation methods are the same as those in example 2 except that no metronidazole is added), example 1 and example 2.
1.4 Experimental methods:
the test field is four mu adjacent fields with similar land conditions. 2.2kg of corn seeds are sown per mu by mechanical sowing, the corn seeds are named as Longping 206, and spray irrigation treatment is respectively carried out by adopting a comparison 1 (except that no metronidazole is added, the other preparation methods are consistent with those of the example 1), a comparison 2 (except that no metronidazole is added, the other preparation methods are consistent with those of the example 2), the example 1 and the example 2.
1.5 detection method: and detecting the percentage content (N%) of nitrogen in the straws and the grains by using a Kjeldahl method, wherein the content of crude protein (CPC%) = N%. 6.25.
The experiment was conducted in a consistent manner except for the different experimental treatments.
2 results and analysis
Corn yield and corn crude protein content, see table 2
| Yield (kg) | Content of crude protein in grain (%) | Straw crude protein (%) | |
| Comparative example 1 | 642.8 | 7.86 | 5.27 |
| Comparative example 2 | 672.5 | 8.33 | 5.51 |
| Example 1 | 668.5 | 8.31 | 5.43 |
| Example 2 | 703.2 | 8.45 | 5.61 |
As can be seen from table 2, in example 1 of the present application, compared with comparative example 1, the crop yield can be increased, and the content of the grain crude protein and the content of the straw crude protein can be increased, i.e., the present application can increase the utilization rate of nitrogen. Although the corn yield and the crude protein content can be obviously improved by adding the nitrification inhibitor, the corn yield and the crude protein content can be further improved by matching the nitrification inhibitor and the metronidazole, the nitrification inhibitor slows down the conversion of nitrogen to nitrate nitrogen, the metronidazole reduces the conversion of the nitrate nitrogen to nitrogen, and the nitrification inhibitor and the metronidazole act together to rely on each other and make greater contribution to the improvement of the crop yield and the utilization rate of fertilizer.
Claims (5)
1. A liquid fertilizer contains inorganic nutrient substances, organic nutrient substances and water, and is characterized by also containing a defoaming agent and metronidazole.
2. The liquid fertilizer as claimed in claim 1, wherein the inorganic nutrient substances comprise one or more of macroelements, secondary elements and trace elements in any proportion; the organic nutrient substances comprise one or more than two of potassium humate, sodium humate, humic acid, potassium fulvate, amino acid, vitamin, molasses liquid, yeast powder and seaweed extract in any proportion; the macroelements are nitrogen, phosphorus and potassium; the secondary elements are calcium, magnesium and sulfur; the microelements comprise boron, zinc, ferrum, molybdenum and manganese.
3. The liquid fertilizer according to claim 1 or 2, further comprising a nitrification inhibitor.
4. The preparation method of the liquid fertilizer is characterized in that inorganic nutrient substances, organic nutrient substances, water and metronidazole are mixed uniformly to obtain the liquid fertilizer; or mixing inorganic nutrient substances, organic nutrient substances, water, metronidazole and nitrification inhibitor to obtain liquid fertilizer; the mass ratio of the inorganic nutrient substances to the organic nutrient substances to the water to the metronidazole to the nitrification inhibitor is 4-60: 1-40: 5-94: 0.01-1: 0-1.
5. The method for preparing the liquid fertilizer as claimed in claim 4, further comprising adding a defoaming agent after uniformly mixing; the addition amount of the defoaming agent is 0.1-0.5% of the total mass.
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| CN112390688A (en) * | 2020-11-16 | 2021-02-23 | 云南省农业科学院农业环境资源研究所 | Liquid fertilizer for improving quality of sweet corn and preparation method thereof |
| CN113087561B (en) * | 2021-04-12 | 2022-09-09 | 华强化工集团股份有限公司 | Processing method of water-soluble fertilizer, method for spraying melons and fruits by using water-soluble fertilizer and production system of water-soluble fertilizer |
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| CN106064983A (en) * | 2016-05-30 | 2016-11-02 | 广东丰康生物科技有限公司 | One is applied to Caulis et Folium Lactucae Sativae containing fulvic acid efficient suspension liquid fertilizer and preparation method thereof |
| CN106397038A (en) * | 2016-09-12 | 2017-02-15 | 辽宁大学 | Liquid fertilizer for plantation of desert rice and preparation method thereof |
| CN108440146A (en) * | 2018-05-30 | 2018-08-24 | 云南云天化股份有限公司 | A kind of full trophic function type suspension liquid fertilizer of high concentration and preparation method thereof |
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2019
- 2019-06-25 CN CN201910557417.0A patent/CN110105147B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101134689A (en) * | 2006-08-29 | 2008-03-05 | 石称华 | Complete-element high-concentration water-soluble long-acting compound fertilizer and method for manufacturing same |
| CN104072424A (en) * | 2013-03-29 | 2014-10-01 | 黄冈师范学院 | Environmental novel co-production technology of metronidazole and composite fertilizer |
| CN106064983A (en) * | 2016-05-30 | 2016-11-02 | 广东丰康生物科技有限公司 | One is applied to Caulis et Folium Lactucae Sativae containing fulvic acid efficient suspension liquid fertilizer and preparation method thereof |
| CN106397038A (en) * | 2016-09-12 | 2017-02-15 | 辽宁大学 | Liquid fertilizer for plantation of desert rice and preparation method thereof |
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Denomination of invention: A liquid fertilizer and its preparation method Effective date of registration: 20230703 Granted publication date: 20210914 Pledgee: Anqiu Shandong rural commercial bank Limited by Share Ltd. Pledgor: Shandong Aiguozhi Biotechnology Co.,Ltd. Registration number: Y2023980046565 |