CN113292377A - Method for preparing environment-friendly biological coated slow-release fertilizer - Google Patents
Method for preparing environment-friendly biological coated slow-release fertilizer Download PDFInfo
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- CN113292377A CN113292377A CN202110689964.1A CN202110689964A CN113292377A CN 113292377 A CN113292377 A CN 113292377A CN 202110689964 A CN202110689964 A CN 202110689964A CN 113292377 A CN113292377 A CN 113292377A
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C11/00—Other nitrogenous fertilisers
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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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- 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
- C05G3/30—Anti-agglomerating additives; Anti-solidifying additives
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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
- 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
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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
- C05G3/80—Soil conditioners
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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
- 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
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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
- C05G5/00—Fertilisers characterised by their form
- C05G5/10—Solid or semi-solid fertilisers, e.g. powders
- C05G5/12—Granules or flakes
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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
- C05G5/00—Fertilisers characterised by their form
- C05G5/30—Layered or coated, e.g. dust-preventing coatings
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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
- C05G5/00—Fertilisers characterised by their form
- C05G5/30—Layered or coated, e.g. dust-preventing coatings
- C05G5/35—Capsules, e.g. core-shell
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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
- C05G5/00—Fertilisers characterised by their form
- C05G5/30—Layered or coated, e.g. dust-preventing coatings
- C05G5/37—Layered or coated, e.g. dust-preventing coatings layered or coated with a polymer
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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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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pest Control & Pesticides (AREA)
- Soil Sciences (AREA)
- Fertilizers (AREA)
Abstract
The invention provides a method for preparing an environment-friendly biological coated slow-release fertilizer, which comprises the following steps: step 1; uniformly stirring and mixing the fertilizer cores to form a core material; step 2: feeding the core material into a roller granulator or a granulator such as a guniting granulator, and pelletizing in the granulator; and step 3: feeding the particles into a dryer or a tower body for drying, cooling and screening to obtain a fertilizer core; and 4, step 4: processing the coating material into liquid and powder; and 5: and (4) spraying the liquid slurry obtained in the step (4) and spraying powder to enable the coating material to be uniformly adhered to the surface of the fertilizer core particles, so as to obtain the biological coating slow-release fertilizer. The slow release shell replaces the anti-caking agent or part of the anti-caking agent and contacts with soil of the anti-caking agent, so that the loss of the inner active ingredients is protected, and the central particles are gradually released; meanwhile, nutrients in the shell are exuded and released through tiny gaps of the shell, are contacted with soil in stages to facilitate root absorption, and are slowly released to achieve efficient utilization.
Description
Technical Field
The invention belongs to the technical field of fertilizer preparation, and particularly relates to a preparation method of an environment-friendly biological coated slow-release fertilizer.
Background
Continuous use of fertilizers results in loss of soil fertility and nutrient balance. To increase crop yield and meet the growing demand of an increasing population, more fertilizers are used. In addition, the large-scale application of compound fertilizers or the use of urea, which rapidly hydrolyzes and nitrifies in soil, leads to deterioration of soil health and environmental problems, such as greenhouse gas emission and groundwater pollution. In order to improve soil fertility, farmers apply micronutrient fertilizers and or inhibitors in addition to conventional fertilizers. Because it is applied separately, there is excessive application, it is still more labour-consuming to apply separately, the white paper shows, our country has become the biggest chemical fertilizer producing country and consumer nation in the world, the chemical fertilizer application amount is up to 6000 million tons (pure) per year. However, the utilization rate of chemical fertilizers in China is only about 33% on average and is far lower than the level of developed countries in the world, and a series of environmental and agricultural product safety problems such as water eutrophication, soil hardening and the like are caused by excessive and unreasonable fertilization.
Urea is one of the most widely used raw materials in the production of compound fertilizers, and the nitrogen content of the product is 46.2%. Urea has the characteristics of high water solubility, high nutrient release speed and the like, so that the urease is quickly hydrolyzed to form carbon dioxide and ammonia after the urea is soaked in soil before crops can absorb the urea, and the pH value of the soil is adjusted to be increased quickly. Breaks the ideal urea hydrolysis ammonia conversion into ammonium, and has the condition for plant absorption. However, fast dissolution results in soil pH<6.5 or>9 ammonia may be lost to the atmosphere. The ammonia produced by urease-catalyzed hydrolysis of urea further reacts with the soil water to provide ammonium cations. The ammonium cations are subsequently oxidized to nitrite and nitrate by nitrifying processes of nitrosomonas and nitrifying bacteria. The conversion of the relatively fixed nitrogen form (ammonium) to highly mobile nitrogen (nitrate) makes soil nitrogen susceptible to loss via a variety of pathways, such as nitrate leaching, in a variety of N' s2、NO、N2Loss of nitrogen gas in the form of O. If the nitrogen utilization is less than 30% in high rain weather and under adequate irrigation conditions.
The structure of the fertilizer product develops towards high efficiency, specialization and functionalization, and is one of the main contents for realizing structure transformation upgrading and supply side structural reform in the fertilizer industry in China in the future. The development of the slow controlled release fertilizer well solves the problems of fertilizer utilization rate, environmental protection and the like, has an important promoting effect on zero growth of chemical fertilizer application in China and realization of agricultural green sustainable development targets, and accords with the direction of product structure improvement in the chemical fertilizer industry in China.
Compared with the traditional fertilizer, the slow and controlled release fertilizer has the following advantages: the nutrient can be basically and synchronously released according to the nutrient absorption rule of crops, so that the utilization rate of the fertilizer is improved; the number and times of fertilization are reduced; the nutrients are slowly released, and the damage to the root system of the crop due to overhigh concentration of the local fertilizer is avoided; the fertilizer is not needed to be applied once, so that the condition that the fertilizer cannot be applied due to irresistible factors such as climate and the like can be avoided; nutrient release conforms to the crop absorption rule, the crop growth stress resistance is improved, and the quality of agricultural products is improved; the fertilizer utilization rate can be improved by more than 50 percent, and the volatilization of nitrogen and the loss of phosphorus and potassium are effectively avoided. Through the development of over ten years, the slow controlled release fertilizer industry in China realizes the conversion from a chaser to a leader, and leading enterprises draw up the international standard of controlled release fertilizer, thereby improving the international influence of the slow controlled release fertilizer in China. According to incomplete statistics, more than 50 major enterprises for slow and controlled release fertilizers in China currently exist, and the productivity is mainly concentrated in areas such as North China. However, the slow and controlled release fertilizer products in China also have the problems of high production cost, weak international output capacity and the like. The white paper suggests that the state gives more support to enterprises in the aspects of policy and capital, and the price of the slow-controlled fertilizer release product is reduced from the source; exploring advanced technologies such as slow-controlled release fertilizer and the like and systems and mechanisms for product popularization, and improving the cognitive level of farmers on slow-controlled release fertilizer products; preferential policies and measures for encouraging export and overseas investment are provided, and international competitiveness is improved; technical radiation is supported, upstream and downstream fusion is realized, and surplus backward capacity of upstream nitrogen fertilizer enterprises in China is solved.
The core of soil fertilization lies in improving the land, and the core of improvement is to increase organic matters, increase beneficial bacteria, improve the soil structure and reduce the addition of harmful substances, such as: the long-term use of the octadecyl primary amine contained in the fertilizer anticaking agent can form carcinogens in soil, and threatens the health and safety of people. The existing fertilizer has the defects of over-high fertilizer efficiency release rate, late-stage fertilizer release, incapability of improving soil improvement and the effective quantity of biological bacteria in soil, and aims to respond to the national call, reduce the production cost, lose weight and improve the efficiency, improve the soil ecological environment, reduce the soil pollution and improve the crop quality.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a method for preparing an environment-friendly biological coated slow-release fertilizer with high utilization rate.
The technical scheme adopted by the invention is as follows: the slow release fertilizer comprises a fertilizer core and a coating material wrapped on the outer side of the fertilizer core, wherein the coating material is prepared from by-product oil obtained after vegetable oil extraction, superfine humic acid, fulvic acid, a biological agent, amino acid liquid, modified starch, calcium powder, talcum powder, a urease inhibitor and a nitrification inhibitor.
Further, the fertilizer core is any one of compound fertilizer, organic fertilizer, extrusion fertilizer and organic-inorganic compound fertilizer.
Further, the coating material is liquid or powder.
A method for preparing an environment-friendly biological coated slow-release fertilizer comprises the following steps:
step 1; the fertilizer cores are measured according to the raw material proportion, and are stirred and mixed uniformly to form a core material;
step 2: feeding the core material obtained in the step (1) into a roller granulator or a granulator such as a gunite granulator, and pelletizing in the granulator;
and step 3: feeding the particles obtained in the step (2) into a dryer or a tower body for drying, cooling and screening to obtain a fertilizer core;
and 4, step 4: processing the coating material into liquid and powder;
and 5: and (4) spraying the liquid slurry obtained in the step (4) and spraying powder to enable the coating material to be uniformly adhered to the surface of the fertilizer core particles, so as to obtain the biological coating slow-release fertilizer.
The beneficial effects obtained by the invention are as follows: the slow release shell replaces the anti-caking agent or part of the anti-caking agent and contacts with soil of the anti-caking agent, so that the loss of the inner active ingredients is protected, and the central particles are gradually released; meanwhile, nutrients in the shell are exuded and released through tiny gaps of the shell, are contacted with soil in stages to facilitate root absorption, and are slowly released to achieve efficient utilization.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments.
A fertilizer coating comprising one or more cores, wherein each core independently comprises one or more fertilizer coating materials, and wherein the cores are surrounded by varying additions of 2-10 kg/ton.
The application also discloses a fertilizer coating, and the fertilizer coating material is as follows: the oil is prepared from by-product oil obtained after the extraction of the vegetable oil, superfine humic acid, fulvic acid, a biological agent, amino acid liquid, modified starch, calcium powder, talcum powder, a urease inhibitor and a nitrification inhibitor.
The application also discloses a method of preparing a fertilizer coated core comprising the steps of: and (5) preparing a wrapping agent.
The application also discloses a method of preparing a fertilizer coated core comprising the steps of: adding amino acid solution, modified starch, urease inhibitor and nitrification inhibitor into vegetable oil, stirring according to a certain proportion to reach a certain concentration, waiting for spraying of particles in a coating machine, and mixing superfine humic acid, fulvic acid, biological bacteria agent, calcium powder, talcum powder and adhesive, waiting for spraying in the coating machine. The mixture can prevent the fertilizer from caking, simultaneously supplement organic matters, increase microorganisms, increase trace elements and reduce the slow release cost, and plays an important role in slow release.
In order to guarantee the utilization rate of the fertilizer, the application discloses a method for manufacturing the slow-release coated fertilizer, and a layer of functional slow-release shell is coated on a certain urea raw material or other compound fertilizers to replace the anti-caking effect of a caking agent or part of the caking agent and is contacted with soil of the fertilizer, so that the loss of the active ingredients in the fertilizer is protected, and the central particles are gradually released. Meanwhile, nutrients in the shell are exuded and released through tiny gaps of the shell, are contacted with soil in stages to facilitate root absorption, and are slowly released to achieve efficient utilization.
The application discloses a fertilizer slow release coating of one or more variety cores, wherein the varieties in the one or more cores are independently proportioned so as to achieve different optimal effects.
The dosed material fraction is for example but not limited to;
a (1), vegetable oil and fat, amino acid solution: modified starch: urease inhibitors: the nitrification inhibitor ratio is: 40%: 30%: 10%: 10%: 10 percent.
B (1) a preparation method of the liquid coating material comprises the following steps: adding amino acid solution into a prepared stirring tank, starting a stirrer in the stirring tank to stir and slowly add vegetable oil after steam is started and the temperature is raised to 60 ℃, stirring for 30 minutes and mixing thoroughly, then adding modified starch, stirring for 10 minutes, adding urease inhibitor and nitrification inhibitor once after the raw materials in the tank are mixed uniformly, stirring for 20 minutes and mixing uniformly for later use.
A (2), vegetable oil, amino acid liquid, modified starch, urease inhibitor and nitrification inhibitor in the weight ratio: 35%: 35%: 10%: 10%: 10 percent.
B (2) preparation method is the same as B (1)
The preparation method of the C (1) powder material comprises the following steps of: yellow humic acid: biological agent: calcium powder: talc powder: 40%: 20%: 10%: 15%: 15 percent.
D (1) preparation method of powder coating material: sequentially pouring calcium powder, talcum powder, extra-fine humic acid, microbial inoculum and fulvic acid into a conical blender one ton per time, starting the stirring blender before pouring, stirring for 20 minutes, and pouring into a coating and powder spreading machine in batches for later use.
The preparation method of the C (2) powder material comprises the following steps of: yellow humic acid: biological agent: calcium powder: talc powder: 30%: 20%: 10%: 20%: 20 percent.
D (2) configuration method is the same as D (1)
Description of raw materials:
(1) vegetable oil and fat: palm oil or edible waste oil, palm oil: palm oil, also known as palm oil and palm oil, is extracted from the pericarp of the oil palm fruitOil and fatIt is a non-drying oil. The oil palm fruit is native to the west coast of Africa, Yunnan, Guangxi,Fujian teaAnd Guangdong provinces and regions are all planted, and the palm oil with the concentration of 52 degrees or edible waste oil and edible by-product oil are used in the method.
(2) Amino acid solution: the byproduct amino acid of the monosodium glutamate contains 20% of nitrogen 8% of amino acid (lysine), and the product containing 17% of organic matters has a strong fragrance. The amino acid can be directly used as a fertilizer and can also be mixed with other materials for use, the amino acid provides basic components for protein synthesis, the amino acid provides a nitrogen source, a carbon source and energy for plants, the photosynthesis and the chlorophyll synthesis of crops are improved, the stress resistance of the crops can be improved after the amino acid acts on the crops, such as low temperature resistance, the effect recovery after disasters can be helped, meanwhile, the amino acid can chelate various medium and trace elements, and the amino acid can provide necessary trace elements for the plants after being absorbed and utilized by the plants.
(3) Modified starch: natural substance (such as natural gas)StarchBy appropriate chemical treatment, certain chemical groups are introducedMoleculeThe structure and the physical and chemical properties are changed to generate the starch derivative. Dissolved or dispersed in water to formColloidal solutionOr emulsion liquid, which is convenient for solidification and molding.
(4) Urease inhibitors: urease inhibitor refers to a chemical preparation capable of inhibiting the activity of urease in soil and delaying the hydrolysis of urea. Soil urease is a specific hydrolase capable of catalyzing urea hydrolysis in soil, and a mechanism for controlling urea hydrolysis by a urease inhibitor mainly has two aspects: firstly, the urease activity is reduced due to the oxidation of SH; second, competition for ligand decreases urease activity.
(5) Nitrification inhibitor: nitrification inhibitor refers to a chemical substance that is capable of inhibiting the bioconversion process of converting ammonium nitrogen into nitrate Nitrogen (NCT). Nitrification inhibitors reduce the loss of nitrogen fertilizer in the form of nitrate nitrogen and the effects on the ecological environment by reducing the formation and accumulation of nitrate nitrogen in soil. Research results show that the nitrification inhibitor is beneficial to reducing the leaching loss of nitrogen and the emission of greenhouse gases (nitrogen oxides), and has positive effect on improving the fertilizer efficiency under certain conditions.
(6) Humic acid: humic acid is a kind of organic matter which is produced and accumulated by remains of animals and plants, mainly remains of plants, through decomposition and transformation of microorganisms and a series of processes of geochemistry. Its total amount is surprisingly large, measured in trillions of tons. The river, lake and sea, soil coal mine and most of the earth surface have its trace. Due to its wide existence, it has great influence on the earth, and relates to carbon circulation, mineral migration and accumulation, soil fertility, ecological balance and other aspects. In addition, the humic acid can improve the biological activity of crops, accelerate the growth speed of root systems of the crops, obviously increase the number and the length of roots and stalks, and can play the role of antioxidation by adjusting the growth environment and the external form of the crops, thereby weakening the influence of external adverse factors on the crops and improving the stress resistance of the crops. Under the drought environment, the gene expression and enzyme activity of crops can be interfered from the inside of cells, and the drought resistance of the crops is improved. Humic acid can increase the chlorophyll expression level of plants in saline-alkali soil, improve the subacidity of resistant humic acid per se, improve the pH value of soil and help crops to absorb the soil, and besides, humic acid can promote the transformation of fertilizer and soil nutrients, improve the utilization rate of the fertilizer and promote the growth of the crops.
(7) Yellow humic acid: the fulvic acid is a short carbon chain molecular structure substance extracted from natural humic acid. It has a heightLoad(s)Amount and physiological activity. Chelating macro and micro nutrients to make them better available to plants; preventing and treating plant diseases and enhancing waterlogging resistance; activating microscopic biological activity of the plant; the fertilizer is slowly released, and the utilization of chemical fertilizers and pesticides is improved; improve nutrient absorption, promote plant germination and growth, and improve soil structure.
(8) The biological agent is; the bacillus mucilaginosus has the functions of dissolving phosphorus, releasing potassium and fixing nitrogen, and can secrete various biological enzymes to enhance the stress resistance of crops.
(9) Calcium powder, talc powder: in order to form a shell material, other raw materials are conveniently matched to form a shell on the outer layer of the fertilizer.
Fertilizer shell wrapping amount
(1) Nitrogen content of 20 or more: the dosage of the wrapping agent in the formula of vegetable oil, amino acid liquid, modified starch, urease inhibitor and nitrification inhibitor is 3 kilograms per ton.
(2) Nitrogen content of 20 or more: ultra-fine humic acid: yellow humic acid: biological agent: calcium powder: talc powder: the dosage of the wrapping agent in the formula is 4 kilograms per ton.
(3) Nitrogen content of 25 or more: the dosage of the wrapping agent in the formula of vegetable oil, amino acid liquid, modified starch, urease inhibitor and nitrification inhibitor is 3.5 kg per ton.
(4) Nitrogen content of 25 or more: ultra-fine humic acid: yellow humic acid: biological agent: calcium powder: talc powder: the dosage of the formula wrapping agent is 4.5 kilograms per ton
(5) Nitrogen content of 30 or more: the dosage of the wrapping agent in the formula of vegetable oil, amino acid liquid, modified starch, urease inhibitor and nitrification inhibitor is 4 kg per ton.
(6) Nitrogen content of 25 or more: ultra-fine humic acid: yellow humic acid: biological agent: calcium powder: talc powder: the dosage of the formula wrapping agent is 5 kilograms per ton
(7) The adding method comprises the following steps: according to the method for adding the anti-caking agent in the production of the compound fertilizer.
The above amounts are representative and the case is not representative of all.
And (4) field test comparison:
test protocol
1: the test fertilizer ratio is as follows: 30-5-5 common compound fertilizer and 30-5-5 coated slow-release compound fertilizer
2: test site: small Zhangbao village in Xin Anzhen town of rural areas
3: the name of the crop in the test field is as follows: yuyu 22 for crops (maize)
4 test time 2020 year 6 months
Conclusion of the experiment
The maximum difference can be seen from an experimental table to be 120 kg, the yield of the slow release fertilizer for comparison through experiments is obviously higher than that of a common fertilizer according to the market price of 2.4 yuan, 288 yuan, 20 yuan and 268 yuan, the utilization rate of the nitrogen fertilizer of the common fertilizer is extremely low, the widely popularized and coated slow release fertilizer accords with the benefits of farmers, the national weight-reducing and efficiency-increasing policies and the benefit of the country and the people by using the slow release fertilizer.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (4)
1. An environment-friendly biological coated slow-release fertilizer is characterized in that: the slow release fertilizer comprises a fertilizer core and a coating material wrapped on the outer side of the fertilizer core, wherein the coating material is prepared from by-product oil obtained after vegetable oil extraction, superfine humic acid, fulvic acid, a biological agent, amino acid liquid, modified starch, calcium powder, talcum powder, a urease inhibitor and a nitrification inhibitor.
2. The environment-friendly organic bio-coated slow-release fertilizer according to claim 1, wherein: the fertilizer core is any one of compound fertilizer, organic fertilizer, extrusion fertilizer and organic-inorganic compound fertilizer.
3. The environment-friendly organic bio-coated slow-release fertilizer according to claim 1, wherein: the coating material is liquid or powder.
4. A method for preparing an environment-friendly biological coated slow-release fertilizer is characterized by comprising the following steps:
step 1; the fertilizer cores are measured according to the raw material proportion, and are stirred and mixed uniformly to form a core material;
step 2: feeding the core material obtained in the step (1) into a roller granulator or a granulator such as a gunite granulator, and pelletizing in the granulator;
and step 3: feeding the particles obtained in the step (2) into a dryer or a tower body for drying, cooling and screening to obtain a fertilizer core;
and 4, step 4: processing the coating material into liquid and powder;
and 5: and (4) spraying the liquid slurry obtained in the step (4) and spraying powder to enable the coating material to be uniformly adhered to the surface of the fertilizer core particles, so as to obtain the biological coating slow-release fertilizer.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114044715A (en) * | 2021-12-03 | 2022-02-15 | 深圳市芭田生态工程股份有限公司 | Preparation method of compound fertilizer and compound fertilizer |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1546438A (en) * | 2003-12-12 | 2004-11-17 | 华东理工大学 | Multifunctional chitin release-controlled fertilizer |
| CN101468927A (en) * | 2007-12-27 | 2009-07-01 | 袁洋 | Biological organic inorganic compound fertilizer product and production method thereof |
| CN103553770A (en) * | 2013-10-21 | 2014-02-05 | 张喜梅 | Organic microorganism-containing ecological fertilizer and production method thereof |
| CN105348004A (en) * | 2015-11-17 | 2016-02-24 | 宁国市汉唐盛世农林开发有限公司 | Humic-acid-containing modified-starch-coated slow-release fertilizer and preparation method thereof |
| CN105948915A (en) * | 2016-05-07 | 2016-09-21 | 深圳市芭田生态工程股份有限公司 | Microbial film coating agent for preparation of microbial fertilizers |
| CN107032914A (en) * | 2016-09-29 | 2017-08-11 | 深圳市芭田生态工程股份有限公司 | Biological coat fertilizer of a kind of high-activity humic acid and preparation method thereof |
-
2021
- 2021-06-22 CN CN202110689964.1A patent/CN113292377A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1546438A (en) * | 2003-12-12 | 2004-11-17 | 华东理工大学 | Multifunctional chitin release-controlled fertilizer |
| CN101468927A (en) * | 2007-12-27 | 2009-07-01 | 袁洋 | Biological organic inorganic compound fertilizer product and production method thereof |
| CN103553770A (en) * | 2013-10-21 | 2014-02-05 | 张喜梅 | Organic microorganism-containing ecological fertilizer and production method thereof |
| CN105348004A (en) * | 2015-11-17 | 2016-02-24 | 宁国市汉唐盛世农林开发有限公司 | Humic-acid-containing modified-starch-coated slow-release fertilizer and preparation method thereof |
| CN105948915A (en) * | 2016-05-07 | 2016-09-21 | 深圳市芭田生态工程股份有限公司 | Microbial film coating agent for preparation of microbial fertilizers |
| CN107032914A (en) * | 2016-09-29 | 2017-08-11 | 深圳市芭田生态工程股份有限公司 | Biological coat fertilizer of a kind of high-activity humic acid and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 吕娟，任永志，王明峰，钟旋，蒋恩臣: "淀粉胶生物质炭基氮肥制备及其缓释特性分析", 《农机化研究》 * |
| 王帅，王楠等: "《土壤肥料学》", 31 January 2017, 长春：吉林大学出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114044715A (en) * | 2021-12-03 | 2022-02-15 | 深圳市芭田生态工程股份有限公司 | Preparation method of compound fertilizer and compound fertilizer |
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