CN104151011B - Concentrate biogas slurry composite reactive blade face liquid fertilizer and preparation method thereof - Google Patents
Concentrate biogas slurry composite reactive blade face liquid fertilizer and preparation method thereof Download PDFInfo
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Abstract
A kind of concentrating biogas slurry composite reactive blade face liquid fertilizer and preparation method thereof, it includes following components: amino acid/11 0～12g, agricultural rare-earth 2～3g, trace element 0.6～1.0g, moderate-element 3.0～3.4g, a great number of elements 4.8～5.2g containing N, diethyl aminoethyl hexanoate 0.8～1.2g, base fluid is for concentrating biogas slurry；The weight of above-mentioned each component refers to the content of component in the finished product of every 100ml；1), regulate the pH value concentrating biogas slurry, and add agricultural rare-earth reaction；2), filter；3), aminoacid is added；4), agricultural rare-earth is added；5), trace element is added；6), moderate-element is added；7), a great number of elements containing N is added；8), diethyl aminoethyl hexanoate is added；9), it is finished product after filtration, sterilizing and fill；Compared with prior art, the present invention has utilization and concentrates biogas slurry and carry out chelatropic reaction, after spraying crops and industrial crops blade face, is remarkably improved yield, improving quality, enhances disease resistance, and fertilizer efficiency is preferable, and production cost is relatively low and the feature that can accomplish scale production.
Description
Technical field
The invention belongs to agricultural fertilizer production technical field, particularly relate to a kind of concentration biogas slurry composite reactive blade face liquid fertilizer and system thereof
Preparation Method.
Background technology
Along with rural area animal husbandry and the development of biogas energy engineering, the whereabouts of biogas slurry becomes new problem.Biogas slurry is directly discharged, by
High in itself COD and BOD content, environment can be caused serious impact.Though biogas slurry is the organic fertilizer of a kind of high-quality, but by
Low in nutrient content, fertilizer application amount is big, transport difficult, and different livestock and poultry farm, the biogas slurry nutrient content of Various Seasonal change greatly,
Peasant is difficult to grasp fertilizer practice etc., and it is bigger that biogas slurry is used as fertilizer limitation.Biogas slurry to be solved, by fertile problem, needs to improve biogas slurry
Concentration, optimize fertilizer performance, reduce transport and use cost, simplify fertilizer practice, convenient store and peasant uses, properly
Handle livestock and poultry farm well and discharge biogas slurry continuously and crops seasonality needs the contradiction between fertilizer.
Biogas slurry, by electricity flocculation and the process of membrance separation, eliminates the major part harmful components such as salinity and heavy metal ion in biogas slurry,
Lettuce improves 5～10 times, adds nutrient and the aminoacid etc. such as nitrogen in biogas slurry, phosphorus, potassium and has the little molecule work of growth-promoting functions
Property material and the functional component content of bacteriostasis, the clean water of release meets country's discharge and field irrigation water quality standard, convenient
The transport of biogas slurry, store and use, providing the basic raw material of high-quality for concentrating the preparation of biogas slurry composite reactive blade face liquid fertilizer,
Make biogas slurry application prospect in agricultural production more wide.
Electricity flocculation principle be biogas slurry under galvanic effect, occur redox reaction, the colloidal state such as salinity and heavy metal ion
With suspended impurity generation coagulative precipitation, reach isolation of purified and remove the purpose of multiple pollutant in biogas slurry.
The principle of membrance separation is the purpose reaching separation by the differential permeability difference of film component each to biogas slurry, purifying and concentrate,
It is a kind of without phase transformation, the physical separating process of low energy consumption, there is the spies such as efficient, energy-conservation, pollution-free, easy to operate and purposes is wide
Point, is one of contemporary state-of-the-art chemical separation technology generally acknowledged, concentrating, the application of biogas slurry production field is more and more extensive.Typically
Concentration biogas slurry refer to that cycles of concentration is 5～10 times, (available nitrogen) containing effective N is 0.2%～0.3%, containing effective P (available phosphorus)
Being 0.05%～0.08%, (effective potassium) containing effective K is the biogas slurry of 0.1%～0.3%.
The primary raw material producing amino acid foliage liquid fertilizer at present is hair, cottonseed meal etc., also has Lumbricus, Optimization of Low Value Fish etc..Hair, cotton
The hydrolyzate of the material proteins such as the dregs of rice, except containing aminoacid, other active component lack.The material protein such as Lumbricus, Optimization of Low Value Fish
Hydrolyzate, although aminoacid and other small-molecule active substance compositions enrich, but production cost is too high, and product lacks competing
Striving power, large-scale production application difficulty is bigger.Also the public technology of biogas slurry foliage fertilizer it is related to, such as application publication number: CN
101811913A, entitled a kind of biogas slurry vegetable keeping normal life activities prophylactic preparation, although be also biogas slurry foliage fertilizer, but selection is without dense
The biogas slurry that contracting processes, nutrient therein and aminoacid and other small-molecule active substance content are relatively low, and possibly together with necessarily
The harmful substances such as the salinity of amount and heavy metal ion, therefore using effect is poor, and it is also easy to cause the secondary pollution of harmful substance；
Also have and increase the fertilizer of other active component, such as publication number: 101406203, entitled plant growth regulator and production method thereof
Public technology, although being also foliage fertilizer, but using effect is poor, production technology is more complicated, and then causes relatively costly,
Cannot the production of scale and application.
Summary of the invention
The present invention is directed to problem above provides one to utilize concentration biogas slurry to carry out chelatropic reaction, sprays crops and industrial crops blade face
After, it being remarkably improved yield, improving quality, enhance disease resistance, fertilizer efficiency is preferable, and production cost is relatively low and can realize scale metaplasia
The concentration biogas slurry composite reactive blade face liquid fertilizer produced.
The present invention solves the technical scheme used by problem above: providing one to concentrate biogas slurry composite reactive blade face liquid fertilizer, it includes
Following component:
Amino acid/11 0～12g, agricultural rare-earth 2～3g, trace element 0.6～1.0g, moderate-element 3.0～3.4g, a large amount of containing N
Element 4.8～5.2g, diethyl aminoethyl hexanoate 0.8～1.2g, base fluid is for concentrating biogas slurry；The weight of above-mentioned each component refers to the finished product of every 100ml
The content of middle component.
It is a further object to provide a kind of preparation method concentrating biogas slurry composite reactive blade face liquid fertilizer, it includes following step
Rapid:
1), first with the dilute nitric acid solution of 25% pH value concentrating biogas slurry is regulated to 5.5～6.5, add agricultural rare-earth subsequently, agricultural
The addition of rare earth is 0.2～0.5g/100ml, refers to add in the concentration biogas slurry of every 100ml the agricultural rare-earth of 0.2～0.5g,
0.25～0.50hr is reacted at a temperature of 50～60 DEG C；
2), by step 1) liquid that obtains filters, and after removing precipitate and float, is purified concentration biogas slurry；
3), purification concentration biogas slurry is proceeded in reactor, add aminoacid so that amino acid whose content reaches 10～12 in finished product
G/100ml, reacts 0.25～0.50hr at a temperature of 50～60 DEG C；
4), in step 3) solution that obtains adds agricultural rare-earth so that and the content of agricultural rare-earth reaches 2～3 in finished product
G/100ml, reaction temperature is 80～90 DEG C, and the response time is 1～3hr；
5), in step 4) cooling after solution in add trace element so that the content of trace element reaches 0.6～1.0 in finished product
G/100ml, reacts 0.5～1.0hr at a temperature of 50～60 DEG C；
6), in step 5) solution that obtains adds moderate-element so that and the content of moderate-element reaches 3.0～3.4 in finished product
G/100ml, reacts 0.5～1.0hr at a temperature of 50～60 DEG C；
7), in step 6) solution that obtains adds a great number of elements containing N so that and the content of a great number of elements containing N is at finished product
In reach 4.8～5.2g/100ml, at a temperature of 50～60 DEG C react 0.4～0.6hr；
8), in step 7) solution that obtains adds diethyl aminoethyl hexanoate so that and the content of diethyl aminoethyl hexanoate reaches 0.8～1.2g/100ml in finished product,
0.8～1.2hr is reacted at a temperature of 50～60 DEG C；
9), until step 8) in solution cooling after, carry out solution filtering, be finished product after fill.
After using above formula and method, compared with prior art, due to the fact that to concentrate biogas slurry as matrix, concentrate biogas slurry and support
Divide content more comprehensive, add a certain amount of a great number of elements containing N (nitrogen) and Ca, Mg, S, Fe, Zn, Cu, B (boron)
Trace element and rare earth in Deng, can promote crop photosynthesis, improves crop yield, improves product quality；Meanwhile, natural pond is concentrated
Gibberellins, auxin, saccharide, nucleic acid and the antibiotic etc. contained in liquid, can do sth. in advance germination, strengthen crop drought resistance and
Freezing tolerance；Self contain and additional aminoacid, can with rare earth and in trace element chelated, they can pass with molecularity
Cell membrane enters in plant cell, is easily absorbed by plants, both can keep the effectiveness of active component, can improve again fertilizer efficiency, can subtract
The murder by poisoning of light and heavy metals ion；Diethyl aminoethyl hexanoate again have promotion cellular plasm flowing, improve cell viability, accelerate plant strain growth send out
Educate, promote root strong sprout, flower and fruit protecting, bear fruit and expand, improve yield, strengthen anti-adversity ability etc., use fertilizer efficiency preferable；And according to
Can realize after the production method of the present invention concentrating biogas slurry, a great number of elements containing N, middle trace element, rare earth element and diethyl aminoethyl hexanoate
Coexisting, properties of product are stable, after spraying crops and industrial crops blade face, are remarkably improved crop yield and crop resistance,
Reach fertilizer efficiency to improve and crop quality improvement, the purpose that yield increases, can be that green agriculture production provides a kind of efficient, environment friend
Good blade face liquid fertilizer, the way of property raw material based on the liquid fertilizer manufacturing process dependence water of change tradition blade face, it is achieved agricultural wastes
The recycling of biogas slurry, production technology is relatively simple, can be mass-produced, and production cost is relatively low.Therefore the present invention has
Utilize and concentrate biogas slurry and carry out chelatropic reaction, after spraying crops and industrial crops blade face, be remarkably improved yield, improving quality,
Enhancing disease resistance, fertilizer efficiency is preferable, and production cost is relatively low and the feature that can accomplish scale production.
As preferably, described aminoacid includes concentrating aminoacid and the additional aminoacid that biogas slurry carries.
As preferably, described agricultural rare-earth is nitric acid rare earth.
As most preferably, described nitric acid rare earth is one or two or more kinds of Lanthanum (III) nitrate, cerous nitrate, praseodymium nitrate and neodymium nitrate
Mixture.
As preferably, described trace element is one or two or more kinds of the inorganic salt of Fe, Zn, Mn, Cu or chelating boron
Mixture.
As preferably, described moderate-element is the nitrate of Ca, Mg.
As preferably, the described a great number of elements containing N is carbamide.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described further.
Embodiment 1
A kind of preparation method concentrating biogas slurry composite reactive blade face liquid fertilizer, it comprises the following steps:
1), first with 25% dilute nitric acid solution the pH value concentrating biogas slurry is regulated to 5.5, add agricultural rare-earth, agricultural rare-earth subsequently
Addition be 0.2g/100ml, refer to the concentration biogas slurry of every 100ml adds the agricultural rare-earth of 0.2g, anti-at a temperature of 50 DEG C
Answer 0.50hr；
2), by step 1) liquid that obtains filters, and after removing precipitate and float, is purified concentration biogas slurry；
3), purification concentration biogas slurry is proceeded in reactor, add aminoacid so that amino acid whose content reaches 10 in finished product
G/100ml, reacts 0.50hr at a temperature of 50 DEG C；
4), in step 3) solution that obtains adds agricultural rare-earth (this example is common agricultural rare earth) so that containing of agricultural rare-earth
Amount reaches 2g/100ml in finished product, and reaction temperature is 80 DEG C, and the response time is 3hr；
5), in step 4) cooling after solution in add trace element Fe, Zn, Mn, Cu inorganic salt or chelating boron one
Or the mixture of more than two kinds so that the content of trace element reaches 0.6g/100ml in finished product, reacts at a temperature of 50 DEG C
1.0hr；
6), in step 5) solution that obtains adds the nitrate of moderate-element Ca, Mg so that and the content of moderate-element is becoming
Product reach 3.0g/100ml, at a temperature of 50 DEG C, reacts 1.0hr；
7), in step 6) solution that obtains adds a great number of elements (this example is carbamide) containing N so that a great number of elements containing N
Content in finished product, reach 4.8g/100ml, at a temperature of 50 DEG C react 0.6hr；
8), in step 7) solution that obtains adds diethyl aminoethyl hexanoate so that and the content of diethyl aminoethyl hexanoate reaches 0.8g/100ml in finished product,
1.2hr is reacted at a temperature of 50 DEG C；
9), until step 8) in solution cooling after, carry out solution filtering, be concentration biogas slurry composite reactive blade face liquid after fill
Fertile manufactured goods.
Containing 10.0g/100ml aminoacid in this finished product, 2.0g/100ml agricultural rare-earth, 0.6g/100ml trace element, 3.0
G/100ml moderate-element, 4.8g/100ml is containing a great number of elements of N, and 0.8g/100ml diethyl aminoethyl hexanoate, remaining is for concentrating biogas slurry and dense
The physiology such as nutrient and gibberellins, auxin, saccharide, nucleic acid and antibiotic such as the phosphorus that remains in contracting biogas slurry, potassium
Active substance.
Embodiment 2
A kind of preparation method concentrating biogas slurry composite reactive blade face liquid fertilizer, it comprises the following steps:
1), first with 25% dilute nitric acid solution the pH value concentrating biogas slurry is regulated to 6.0, add agricultural rare-earth, agricultural rare-earth subsequently
Addition be 0.3g/100ml, refer to the concentration biogas slurry of every 100ml adds the agricultural rare-earth of 0.3g, anti-at a temperature of 55 DEG C
Answer 0.30hr；
2), by step 1) liquid that obtains filters, and after removing precipitate and float, is purified concentration biogas slurry；
3), purification concentration biogas slurry is proceeded in reactor, add aminoacid so that amino acid whose content reaches 11 in finished product
G/100ml, reacts 0.30hr at a temperature of 55 DEG C；
4), in step 3) solution that obtains adds agricultural rare-earth (this example be nitric acid rare earth be Lanthanum (III) nitrate, cerous nitrate, praseodymium nitrate
And the mixture of one or two or more kinds of neodymium nitrate) so that the content of agricultural rare-earth reaches 2.5g/100ml in finished product, reaction
Temperature is 85 DEG C, and the response time is 2hr；
5), in step 4) cooling after solution in add trace element Fe, Zn, Mn, Cu inorganic salt and chelating boron so that
The content of trace element reaches 0.8g/100ml in finished product, reacts 0.8hr at a temperature of 55 DEG C；
6), in step 5) solution that obtains adds the nitrate of moderate-element Ca, Mg so that and the content of moderate-element is becoming
Product reach 3.2g/100ml, at a temperature of 55 DEG C, reacts 0.8hr；
7), in step 6) solution that obtains adds a great number of elements (this example is carbamide) containing N so that a great number of elements containing N
Content in finished product, reach 5.0g/100ml, at a temperature of 55 DEG C react 0.5hr；
8), in step 7) solution that obtains adds diethyl aminoethyl hexanoate so that and the content of diethyl aminoethyl hexanoate reaches 1.0g/100ml in finished product,
1.0hr is reacted at a temperature of 55 DEG C；
9), until step 8) in solution cooling after, carry out solution filtering, be concentration biogas slurry composite reactive blade face liquid after fill
Fertile manufactured goods.
Containing 11.0g/100ml aminoacid in this finished product, 2.5g/100ml agricultural rare-earth, 0.8g/100ml trace element, 3.2
G/100ml moderate-element, 5.0g/100ml is containing a great number of elements of N, and 1.0g/100ml diethyl aminoethyl hexanoate, remaining is for concentrating biogas slurry and dense
The physiology such as nutrient and gibberellins, auxin, saccharide, nucleic acid and antibiotic such as the phosphorus that remains in contracting biogas slurry, potassium
Active substance.
Embodiment 3
A kind of preparation method concentrating biogas slurry composite reactive blade face liquid fertilizer, it comprises the following steps:
1), first with 25% dilute nitric acid solution the pH value concentrating biogas slurry is regulated to 6.5, add agricultural rare-earth, agricultural rare-earth subsequently
Addition be 0.5g/100ml, refer to the concentration biogas slurry of every 100ml adds the agricultural rare-earth of 0.5g, anti-at a temperature of 60 DEG C
Answer 0.25hr；
2), by step 1) liquid that obtains filters, and after removing precipitate and float, is purified concentration biogas slurry；
3), purification concentration biogas slurry is proceeded in reactor, add aminoacid so that amino acid whose content reaches 12 in finished product
G/100ml, reacts 0.25hr at a temperature of 60 DEG C；
4), in step 3) solution that obtains adds agricultural rare-earth (this example be nitric acid rare earth be Lanthanum (III) nitrate, cerous nitrate, praseodymium nitrate
And the mixture of one or two or more kinds of neodymium nitrate) so that the content of agricultural rare-earth reaches 3.0g/100ml in finished product, reaction
Temperature is 90 DEG C, and the response time is 1hr；
5), in step 4) cooling after solution in add trace element Fe, Zn, Mn, Cu inorganic salt and chelating boron so that
The content of trace element reaches 1.0g/100ml in finished product, reacts 0.5hr at a temperature of 60 DEG C；
6), in step 5) solution that obtains adds the nitrate of moderate-element Ca, Mg so that and the content of moderate-element is becoming
Product reach 3.4g/100ml, at a temperature of 60 DEG C, reacts 0.5hr；
7), in step 6) a great number of elements containing N in the solution that obtains so that the content of a great number of elements containing N reaches in finished product
To 5.2g/100ml, at a temperature of 60 DEG C, react 0.4hr；
8), in step 7) solution that obtains adds diethyl aminoethyl hexanoate so that and the content of diethyl aminoethyl hexanoate reaches 1.2g/100ml in finished product,
0.8hr is reacted at a temperature of 60 DEG C；
9), until step 8) in solution cooling after, carry out solution filtering, be concentration biogas slurry composite reactive blade face liquid after fill
Fertile manufactured goods.
Containing 12.0g/100ml aminoacid in this finished product, 3.0g/100ml agricultural rare-earth, 1.0g/100ml trace element, 3.4
G/100ml moderate-element, 5.2g/100ml is containing a great number of elements of N, and 1.2g/100ml diethyl aminoethyl hexanoate, remaining is for concentrating biogas slurry and dense
The physiology such as nutrient and gibberellins, auxin, saccharide, nucleic acid and antibiotic such as the phosphorus that remains in contracting biogas slurry, potassium
Active substance.
Above example is only presently preferred embodiments of the present invention, and the present invention is not limited only to above example and also allows for other change, all
In rights to independence claimed range of the present invention, change, all belongs to scope.
Claims (9)
1. one kind concentrates biogas slurry composite reactive blade face liquid fertilizer, it is characterised in that: it includes following component:
Amino acid/11 0～12g, agricultural rare-earth 2～3g, trace element 0.6～1.0g, moderate-element 3.0～3.4g, a large amount of containing N
Element 4.8～5.2g, diethyl aminoethyl hexanoate 0.8～1.2g, base fluid is by electricity flocculation and the concentration that membrance separation, cycles of concentration are 5～10 times
Biogas slurry；Described aminoacid includes concentrating aminoacid and the additional aminoacid that biogas slurry carries；The weight of above-mentioned each component refers to often
The content of component in the finished product of 100ml.
Concentration biogas slurry composite reactive blade face the most according to claim 1 liquid fertilizer, it is characterised in that: described agricultural rare-earth is nitre
Acid rare earth.
Concentration biogas slurry composite reactive blade face the most according to claim 2 liquid fertilizer, it is characterised in that: described nitric acid rare earth is nitre
Acid lanthanum, cerous nitrate, praseodymium nitrate and the mixture of one or two or more kinds of neodymium nitrate.
Concentration biogas slurry composite reactive blade face the most according to claim 1 liquid fertilizer, it is characterised in that: described trace element be Fe,
The inorganic salt of Zn, Mn, Cu or the mixture of one or two or more kinds of chelating boron.
Concentration biogas slurry composite reactive blade face the most according to claim 1 liquid fertilizer, it is characterised in that: described moderate-element be Ca,
The nitrate of Mg.
Concentration biogas slurry composite reactive blade face the most according to claim 1 liquid fertilizer, it is characterised in that: the described a large amount of units containing N
Element is carbamide.
7. the preparation method concentrating biogas slurry composite reactive blade face liquid fertilizer, it is characterised in that: it comprises the following steps:
1), first with the dilute nitric acid solution of 25% pH value concentrating biogas slurry is regulated to 5.5～6.5, add agricultural rare-earth subsequently, agricultural
The addition of rare earth is 0.2～0.5g/100ml, refers to add in the concentration biogas slurry of every 100ml the agricultural rare-earth of 0.2～0.5g,
0.25～0.50hr is reacted at a temperature of 50～60 DEG C；
2), by step 1) liquid that obtains filters, and after removing precipitate and float, is purified concentration biogas slurry；
3), purification concentration biogas slurry is proceeded in reactor, add aminoacid so that amino acid whose content reaches 10～12 in finished product
G/100ml, reacts 0.25～0.50hr at a temperature of 50～60 DEG C；
4), in step 3) solution that obtains adds agricultural rare-earth so that and the content of agricultural rare-earth reaches 2～3 in finished product
G/100ml, reaction temperature is 80～90 DEG C, and the response time is 1～3hr；
5), in step 4) cooling after solution in add trace element so that the content of trace element reaches 0.6～1.0 in finished product
G/100ml, reacts 0.5～1.0hr at a temperature of 50～60 DEG C；
6), in step 5) solution that obtains adds moderate-element so that and the content of moderate-element reaches 3.0～3.4 in finished product
G/100ml, reacts 0.5～1.0hr at a temperature of 50～60 DEG C；
7), in step 6) solution that obtains adds a great number of elements containing N so that and the content of a great number of elements containing N is at finished product
In reach 4.8～5.2g/100ml, at a temperature of 50～60 DEG C react 0.4～0.6hr；
8), in step 7) solution that obtains adds diethyl aminoethyl hexanoate so that and the content of diethyl aminoethyl hexanoate reaches 0.8～1.2g/100ml in finished product,
0.8～1.2hr is reacted at a temperature of 50～60 DEG C；
9), until step 8) in solution cooling after, carry out solution filtering, be finished product after fill.
The preparation method of concentration biogas slurry composite reactive blade face the most according to claim 7 liquid fertilizer, it is characterised in that: described ammonia
Base acid includes concentrating aminoacid and the additional aminoacid that biogas slurry carries；Described agricultural rare-earth is nitric acid rare earth；Described trace
Element is inorganic salt or the mixture of one or two or more kinds of chelating boron of Fe, Zn, Mn, Cu；Described moderate-element is
The nitrate of Ca, Mg；The described a great number of elements containing N is carbamide.
The preparation method of concentration biogas slurry composite reactive blade face the most according to claim 8 liquid fertilizer, it is characterised in that: described nitre
Acid rare earth is the mixture of one or two or more kinds of Lanthanum (III) nitrate, cerous nitrate, praseodymium nitrate and neodymium nitrate.
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| CN104844373B (en) * | 2015-05-24 | 2017-10-31 | 邱朝胡 | A kind of Water Soluble Compound fertilizer and preparation method thereof |
| CN106365369A (en) * | 2016-08-30 | 2017-02-01 | 天津市农业资源与环境研究所 | Biogas slurry concentration and nutrient enrichment system for large biogas project and application method thereof |
| CN108059554A (en) * | 2016-11-07 | 2018-05-22 | 日照益康有机农业科技发展有限公司 | A kind of biology expelling parasite foliar fertilizer and preparation method thereof |
| CN106588292A (en) * | 2016-11-30 | 2017-04-26 | 河南昶彤生物科技发展有限公司 | Concentrated biogas slurry and preparation method thereof |
| CN106831192A (en) * | 2017-03-22 | 2017-06-13 | 宁夏大学 | Biogas slurry complex microorganism drip irrigation fertilizer and preparation method thereof |
| CN106927958B (en) * | 2017-04-28 | 2020-11-20 | 宁夏农林科学院农业资源与环境研究所 | Special amino acid composite liquid fertilizer for calcareous soil and preparation method thereof |
| CN107602268A (en) * | 2017-11-10 | 2018-01-19 | 丁爱军 | The special organic fertilization fertilizer of rape |
| CN109180372A (en) * | 2018-11-26 | 2019-01-11 | 甘肃方正节能科技服务有限公司 | Biogas slurry amino acid fertilizer and preparation method thereof |
| CN112592230A (en) * | 2020-12-25 | 2021-04-02 | 江苏苏港和顺生物科技有限公司 | Preparation method of biogas slurry foliar fertilizer |
| CN114456013A (en) * | 2022-01-26 | 2022-05-10 | 宁夏农林科学院农业资源与环境研究所（宁夏土壤与植物营养重点实验室） | Wine grape young old tree correction biological agent and preparation method and use method thereof |
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| CN101062876B (en) * | 2006-04-27 | 2010-07-28 | 杨明 | Preparation of multiple-effect plant disease-proof nutrient solution |
| CN101550039B (en) * | 2009-05-14 | 2012-08-29 | 浙江林学院 | A liquid fertilizer containing biogas slurry and usage method thereof |
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| CN101913941B (en) * | 2010-07-13 | 2013-04-10 | 北京林业大学 | Antitranspirant foliar fertilizer and preparation method thereof |
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| CN104151011A (en) | 2014-11-19 |
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