CN101891529B - Method for preparing microelement fertilizer - Google Patents
Method for preparing microelement fertilizer Download PDFInfo
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- CN101891529B CN101891529B CN2010101650032A CN201010165003A CN101891529B CN 101891529 B CN101891529 B CN 101891529B CN 2010101650032 A CN2010101650032 A CN 2010101650032A CN 201010165003 A CN201010165003 A CN 201010165003A CN 101891529 B CN101891529 B CN 101891529B
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- wormcast
- trace element
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- element fertilizer
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Abstract
The invention discloses a method for preparing a microelement fertilizer. The method comprises the following steps of: drying wormcast at the temperature of between 30 and 60 DEG C, crushing and grinding the wormcast and sieving the wormcast with a 100-mesh screen to obtain fine wormcast powder for later use; and (2) placing the fine wormcast powder in water, stirring the mixture for 20 to 60 minutes, controlling a stirring speed within a range from 100 to 350 revolution/minute, adjusting the pH to be within a range from 3.0 to 5.5, controlling the reaction temperature within the range from 15 to 60 DEG C, adding metal ionic solution into the mixture, continuously stirring the mixture to react for 0.5 to 4.0 hours, stopping the filtering, and filtering and drying the mixture to obtain the microelement fertilizer. The solid microelement fertilizer obtained by the method can be easily absorbed by plants and has low cost.
Description
Technical field
The invention belongs to technical field of fertilizers, particularly a kind of preparation method of trace element fertilizer.
Background technology
Except a large amount of and middle amount nutritive element, trace element also is must be indispensable in the process of crop growth.Germany scientist Li Xi proposes minimum nutrition minute rule than the earliest: " when lacking certain essential element in the nutrient environment, crop yield at first is subjected to the restriction of this element, and output then improves along with its increase ", i.e. " short-board effect ".Trace element plays vital effect in the growing of plant, in doing the object metabolism, they are the moiety of crop hormone and enzyme normally, plays a part to regulate, the control crop growth.Trace element only accounts for ten thousand/several to 100,000/several.Requirement seldom, if but lack, the serious consequences such as dysplasia, resistance against diseases weaken will appear.
Up to the present, the elements such as Fe, Mn, Zn, Cu, B, Mo, RE are arranged by universally acknowledged trace element.The U.S. produces and uses the maximum country of trace element fertilizer in the world; USSR (Union of Soviet Socialist Republics), Japan, Germany, Sweden, Britain etc. also use a certain amount of trace element fertilizer according to its soil and weather condition; The trace element fertilizer production of China is started late, the seventies in last century, agricultural sector and the Chinese Academy of Sciences found that in succession crop has the symptom of scarce Zn, B, Mn, just begun production and the use of trace element fertilizer, trace element fertilizer and rare earth element fertilizer have wherein been arranged.Common trace element fertilizer has: molydbenum fertilizer, boron fertilizer, manganese fertilizer, zinc fertilizer, copper fertilizer, cobalt fertilizer, iron fertilizer etc.Existing solid trace element fertilizer is pulverized levigate mainly with the mineral form of trace element, inorganic salt form separately or add in the composite fertilizer is directly used and entered in the soil.Because of the interaction of different kinds of ions in the antagonistic action between each element and mutual chemical reaction and the soil, most elements, is generated water-fast inorganic salt and lost efficacy by soil fixing through reaction, is difficult to be utilized by plant absorbing.The effective way that addresses this problem is to use sequestrant, makes metal ion and sequestrant generate stable five yuan or hexa-atomic inner complex.Through chelating, can make that metal ion is degenerated slowly, fertilizer efficiency is long in soil, release rate is controlled, and has improved the utilization ratio of trace element fertilizer, controls it to a large amount of migration of crop.The more sequestrant of present domestic use is that the complexones such as ethylenediamine tetraacetic acid (EDTA) and disodium salt thereof are arranged, and also has to use sulfonated humic acid to make sequestrant.Present multiplex EDTA chelated microelement is made liquid fertilizer, in plant seed dressing with topdress that to spray middle use more, because the intercalating agent cost is higher, but fails to apply always, and the report of aminoacid chelating microelement is not arranged in the solid fertilizer.
Earthworm is that a kind of software succulence, protein content reach 70% mollusk, in recent years, propagate earthworm artificially and obtained larger development as an emerging cause, it can as the parts of generic medicinal plants earthworm, also can as the protein feed of the cultivation such as poultry, fowl, fish, can also utilize earthworm improvement soil, cultivate soil fertility, can also process organic garbage of city, change uselessly in fertile, eliminate organic waste to the pollution of environment etc.; Simultaneously, can also produce a large amount of wormcasts simultaneously.
Earthworm is liked the biological organic fertilizer that detritivorous organic waste becomes high-quality, natural various organic waste is after fermentation, under earthworm Digestive tract proteolytic enzyme, fat anti-enzyme, cellulase and diastatic effect, decompose rapidly, transform into self or be easy to the nutritive substance that other biological utilizes, after draining, become wormcast.Therefore, wormcast is the product of the Nature in essence, really can satisfy all sidedly various demands and the nutritive ingredient of plant-growth, and plant is had fabulous magical fertilizer efficiency.Wormcast not only contains the macroelement such as nitrogen, phosphorus, zinc, and organic content and humus content all reach about 30%.Principal element organic and humic acids has carbon, hydrogen, oxygen, nitrogen, sulphur etc. in the wormcast, is the polycondensate of a kind of multivalence phenol type aromatics and nitrogen compound, and molecular weight distribution is wider, for several ten thousand between millions of.Structure forms complicated, contains the several functions groups such as phenolic hydroxyl group, hydroxyl, alcoholic extract hydroxyl group, quinone hydroxyl, enol base, sulfonic group, amido, free quinonyl, half quinonyl, quinone oxygen base, methoxyl group.Each intertwines by chemistry, physical actions such as bonding, hydrogen bond, absorption between forming.Owing to the existence of these active genes, determined acidity, wetting ability, ion exchangeable, complexing and higher adsorptive power, buffering, the catalytic force of humic acids.
The wormcast fertilizer has the characteristics such as bio-fertilizer, biological organic fertilizer, fertilizer, amino acid fertilizer, humic acid fertilizer simultaneously, and usually direct as fertilizer sources is used separately or is used in conjunction with personal experience and other fertilizer at present.Still in trace element fertilizer, do not introduce the report of wormcast.
Summary of the invention
Main purpose of the present invention is to be difficult to by problems such as the liquid trace element fertilizer cost of plant absorbing utilization, interpolation sequestrant are too high for the solid trace element fertilizer that exists in the above-mentioned prior art, a kind of preparation method of trace element fertilizer is provided, the solid trace element fertilizer that obtains by the method is easily by plant absorbing, and cost is lower.
In order to realize the foregoing invention purpose, the technical solution used in the present invention is as follows:
A kind of preparation method of trace element fertilizer comprises following key step:
(1) preparation of sequestrant wormcast: 30 ℃～60 ℃ dryings (can air-dry or dry), pulverize levigately wormcast, cross 100 mesh sieves, obtain the wormcast fine powder, for subsequent use;
(2) preparation trace element fertilizer: the wormcast fine powder that step (1) obtains is put into water, and amount of water is according to wormcast fine powder quality: quality=0.5～5: 10～20 calculate; Stir 20min-60min, the control stirring velocity is 100～350r/min, then regulating pH is 3.0～5.5, the control temperature of reaction is 15 ℃～60 ℃, and adding mass volume ratio is the metal ion solution (the available various salt that contain micro-metal ion are mixed with the aqueous solution) of 0.02～0.25g/ml, continues stirring reaction 0.5h～4.0h, stop to stir, filter, drying namely gets trace element fertilizer.
Among the preparation method of above-mentioned trace element fertilizer, described metal ion can be selected from rare earth ion RE
3+(such as La
3+, Ce
3+) and Cu
2+, Zn
2+Deng, can choose any one kind of them or multiple, its consumption can be that 0.1%～5% of sequestrant wormcast quality is calculated according to the metal ion quality.
Its reaction principle is among the above-mentioned preparation method of the present invention: utilize soil ulmin contained in the wormcast and organic contained chelation group (such as several functions groups such as phenolic hydroxyl group, hydroxyl, alcoholic extract hydroxyl group, quinone hydroxyl, enol base, sulfonic group, amido, free quinonyl, half quinonyl, quinone oxygen base, methoxyl groups), under certain stirring velocity, acidity and temperature condition with metal ion (RE
3+, Cu
2+, Zn
2+Deng) chelating, make the fertilizer of chelated microelement.Its reaction is absorption chelating combined techniques.
The present invention is take wormcast as sequestrant, wormcast itself namely contains a certain amount of nitrogen, phosphorus, potassium element, under given conditions behind the chelated microelement, not only can be plant micro-element nutrition is provided, also can be plant major element nutrition is provided, reach that raw material is natural, environmental protection, controlled the effect of micro-release.
The trace element fertilizer that the present invention produces both can be used as trace element fertilizer and directly had been applied to separately the farmland, also can with the blend such as nitrogenous fertilizer, phosphate fertilizer, potash fertilizer, composite fertilizer, make various solids or liquid composite fertilizer, its addition can suitably be adjusted according to the different demands of Different Crop growth, usually can be 0.5～5%.
Compared with prior art, the invention has the beneficial effects as follows:
The present invention is take wormcast as sequestrant, with metal ion RE
3+(La
3+, Ce
3+), Cu
2+, Zn
2+Deng being trace element, adopt the chemisorption process for sequestration, make trace element fertilizer; For soil adds necessary nutritive element, not only can effectively control the release rate of trace element, improve the utilization ratio of trace element, and because relevant active ingredient and the organic matter that the earthworm excrement contains self, can improve Soil structure, promote soil microbial activity, be conducive to the plant absorbing nutrient; Can strengthen water conservation, nutrient preserving capability, prevent soil loss; Effectively coordinate soil Zhong Shui, fertilizer, gas, heat, increase soil fertility.
Its major advantage is as follows:
The first, the raw material wormcast is cheap and easy to get, natural environmental-protective, and cost is low;
The second, reaction conditions is gentle, and is simple to operate;
The 3rd, the reaction times is short, and the production cycle, required device is simple, can further reduce cost; The assurance annual production is high, increases economic efficiency;
The 4th, the micro-utilization ratio of fertilizer is high, improves simultaneously Soil structure, promotes soil microbial activity, and through biometrics, the crop of planting has obvious disease resistance and drought-resistant, freezing etc. anti-adversity ability;
The 5th, the trace element fertilizer that this method is produced is gentle, does not produce to burn the seedling phenomenon.
Comprehensive above-mentioned advantage, this preparation method is simple to operate, reaction conditions is gentle and cost is low, annual production is high, is easy to realize suitability for industrialized production, and is good in economic efficiency.
The present invention is conducive to plant-growth, has improved the quality of composite fertilizer with trace elements, is that a kind of cost is low, the fertilizer of high efficiency.The trace element of producing both can use separately, also can with N, P, K mixings production composite fertilizer, can also granulation after as the raw material of blending (BB fertilizer).
Embodiment
Below in conjunction with embodiment foregoing invention content of the present invention is described in further detail.
But this should be interpreted as that the scope of the above-mentioned theme of the present invention only limits to following embodiment.Not breaking away from the above-mentioned technological thought situation of the present invention, according to ordinary skill knowledge and customary means, make various replacements and change, all should comprise within the scope of the invention.
Embodiment 1
The present embodiment trace element fertilizer prepares by following method:
(1) preparation of sequestrant wormcast: with wormcast 30 ℃～40 ℃ air-dry, pulverize levigately, cross 100 mesh sieves, obtain the wormcast fine powder, for subsequent use;
(2) preparation trace element fertilizer: wormcast fine powder 100 grams that step (1) is obtained are dissolved in the 1000ml water, stir 30min, the control stirring velocity is 100r/min, and then regulating pH is 3.0, and the control temperature of reaction is 15 ℃, adding the 5ml zinc content is the aqueous solution (being mixed with the aqueous solution with the nitric acid zinc salt) of 0.1g, continue stirring reaction 0.5h, stop to stir, filter, 30 ℃ of vacuum-dryings namely get the trace element fertilizer of zinc content 0.1% to constant weight.
Embodiment 2
The present embodiment trace element fertilizer prepares by following method:
(1) preparation of sequestrant wormcast: 50 ℃～60 ℃ dryings, pulverize levigately wormcast, cross 100 mesh sieves, obtain the wormcast fine powder, for subsequent use;
(2) preparation trace element fertilizer: wormcast fine powder 100 grams that step (1) is obtained are dissolved in the 1000ml water, stir 20min, the control stirring velocity is 350r/min, and then regulating pH is 5.5, and the control temperature of reaction is 60 ℃, adding the 20ml copper content is the aqueous solution (being mixed with the aqueous solution with the nitric acid mantoquita) of 5g, continue stirring reaction 4.0h, stop to stir, filter, 60 ℃ of vacuum-dryings namely get the trace element fertilizer of copper content 5% to constant weight.
Embodiment 3
The present embodiment trace element fertilizer prepares by following method:
(1) preparation of sequestrant wormcast: wormcast is dried at 40 ℃～50 ℃, pulverize levigately, cross 100 mesh sieves, obtain the wormcast fine powder, for subsequent use;
(2) preparation trace element fertilizer: wormcast fine powder 100 grams that step (1) is obtained are dissolved in the 1000ml water, stir 60min, the control stirring velocity is 250r/min, and then regulating pH is 4.5, and the control temperature of reaction is 50 ℃, add 20ml and contain the aqueous solution that the lanthanum amount is 0.5g (being mixed with the aqueous solution with lanthanum nitrate salt), continue stirring reaction 3.0h, stop to stir, filter, 50 ℃ in baking oven is dried to constant weight, namely gets the trace element fertilizer that contains lanthanum amount 0.5%.
Embodiment 4
The present embodiment trace element fertilizer prepares by following method:
(1) preparation of sequestrant wormcast: 35 ℃～45 ℃ dryings, pulverize levigately wormcast, cross 100 mesh sieves, obtain the wormcast fine powder, for subsequent use;
(2) preparation trace element fertilizer: wormcast fine powder 100 grams that step (1) is obtained are dissolved in the 1000ml water, stir 40min, the control stirring velocity is 300r/min, then regulating pH is 3.5, the control temperature of reaction is 40 ℃, add 10ml and contain the aqueous solution (being mixed with the aqueous solution with lanthanum nitrate salt and cerous sulfate salt) that lanthanum and cerium amount are respectively 0.5g, continue stirring reaction 2.0h, stop to stir, filter, 80 ℃ of dryings namely get and contain lanthanum and cerium amount and be respectively 0.5% mishmetal trace element fertilizer.
Embodiment 5
The present embodiment trace element fertilizer prepares by following method:
(1) preparation of sequestrant wormcast: 45 ℃～55 ℃ oven dry, pulverize levigately wormcast, cross 100 mesh sieves, obtain the wormcast fine powder, for subsequent use;
(2) preparation trace element fertilizer: wormcast fine powder 100 grams that step (1) is obtained are dissolved in the 1000ml water, stir 30min, the control stirring velocity is 200r/min, then regulating pH is 4.0, the control temperature of reaction is 30 ℃, add 10ml and contain the aqueous solution (being mixed with the aqueous solution with lanthanum nitrate salt and nitric acid zinc salt) that lanthanum and zinc amount are respectively 0.5g, continue stirring reaction 3.5h, stop to stir, filter, 90 ℃ of dryings namely get and contain lanthanum and zinc amount and be respectively 0.5% mishmetal trace element fertilizer.
Claims (5)
1. the preparation method of a trace element fertilizer comprises the steps:
(1) preparation of sequestrant wormcast: 30 ℃～60 ℃ dryings, pulverize levigately wormcast, cross 100 mesh sieves, obtain the wormcast fine powder, for subsequent use;
(2) preparation trace element fertilizer: the wormcast fine powder that step (1) obtains is put into water, and amount of water is according to wormcast fine powder quality: quality=0.5～5: 10～20 calculate; Stir 20min-60min, the control stirring velocity is 100～350r/min, then regulating pH is 3.0～5.5, the control temperature of reaction is 15 ℃～60 ℃, and adding mass volume ratio is the metal ion solution of 0.02～0.25g/ml, continues stirring reaction 0.5h～4.0h, stop to stir, filter, drying namely gets trace element fertilizer.
2. the preparation method of trace element fertilizer according to claim 1 is characterized in that:
In the described step (1), the drying means of wormcast is air-dry or dries.
3. the preparation method of trace element fertilizer according to claim 1 is characterized in that:
Described metal ion is selected from rare earth ion.
4. the preparation method of trace element fertilizer according to claim 3 is characterized in that:
Described rare earth ion is selected from La
3+, Ce
3+
5. the preparation method of trace element fertilizer according to claim 1 is characterized in that:
Described metal ion is selected from Cu
2+, Zn
2+
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101650032A CN101891529B (en) | 2010-05-07 | 2010-05-07 | Method for preparing microelement fertilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101650032A CN101891529B (en) | 2010-05-07 | 2010-05-07 | Method for preparing microelement fertilizer |
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| Publication Number | Publication Date |
|---|---|
| CN101891529A CN101891529A (en) | 2010-11-24 |
| CN101891529B true CN101891529B (en) | 2013-01-16 |
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ID=43100908
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101650032A Expired - Fee Related CN101891529B (en) | 2010-05-07 | 2010-05-07 | Method for preparing microelement fertilizer |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103011909B (en) * | 2013-01-07 | 2016-06-22 | 北京清大元农生物科技有限公司 | Production method based on the Liquid Fertilizer matrix solution of wormcast |
| KR102114840B1 (en) * | 2020-04-03 | 2020-05-25 | 주식회사 풍산비료 | Manufacturing method for environment friendly fertilizer using livestock excretion |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1105009A (en) * | 1994-11-04 | 1995-07-12 | 白云涛 | Chelating micro fertilizer |
| CN1568750A (en) * | 2004-04-29 | 2005-01-26 | 雷金丰 | Production method of rainworm amino acid composite animal nutrient solution |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8381439B2 (en) * | 2007-05-18 | 2013-02-26 | Patti D. Rubin | Compressed growing medium including castings |
-
2010
- 2010-05-07 CN CN2010101650032A patent/CN101891529B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1105009A (en) * | 1994-11-04 | 1995-07-12 | 白云涛 | Chelating micro fertilizer |
| CN1568750A (en) * | 2004-04-29 | 2005-01-26 | 雷金丰 | Production method of rainworm amino acid composite animal nutrient solution |
Non-Patent Citations (3)
| Title |
|---|
| 廖洋等.绿色固体复合肥的发展现状及应用研究.《四川省环境科学学会2003年学术年会论文集》.2003,第303-304页2.2.1. * |
| 朱维琴等.猪粪及蚓粪对Cu和Zn吸附行为的比较研究.《农业环境科学学报》.2009,第28卷(第2期),第280至282页. * |
| 李扬等.蚯蚓粪作为土壤重金属污染修复剂的潜力分析.《农业环境科学学报》.2010,第29卷(第S1期),第252页2.2. * |
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Effective date of registration: 20140610 Address after: 620300 Meishan City, Sichuan province Hongya County Yang Ping Shan cattle farm Patentee after: Meishan land Biotechnology Co., Ltd. Address before: 610068 Jingan Road, Chengdu, Sichuan, No. 5, No. Patentee before: Sichuan Normal University |
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Application publication date: 20101124 Assignee: Bazhou earthworm Biotechnology Co., Ltd. Assignor: Meishan land Biotechnology Co., Ltd. Contract record no.: 2015650000017 Denomination of invention: Method for preparing microelement fertilizer Granted publication date: 20130116 License type: Exclusive License Record date: 20150424 |
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