CN107098770A - A kind of chelating amino acids zinc fertilizer and preparation method thereof - Google Patents
A kind of chelating amino acids zinc fertilizer and preparation method thereof Download PDFInfo
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- CN107098770A CN107098770A CN201710494423.7A CN201710494423A CN107098770A CN 107098770 A CN107098770 A CN 107098770A CN 201710494423 A CN201710494423 A CN 201710494423A CN 107098770 A CN107098770 A CN 107098770A
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- amino acids
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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
- C05C—NITROGENOUS FERTILISERS
- C05C9/00—Fertilisers containing urea or urea compounds
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Abstract
The invention discloses a kind of chelating amino acids zinc fertilizer and preparation method thereof.The chelating amino acids zinc fertilizer includes the raw material of following parts by weight:50 60 parts of amino acid, 30 40 parts of soluble zinc salt, 5 10 parts of carboxymethyl cellulose, 6 15 parts of urea, 14 parts of pectin.By selecting the carboxymethyl cellulose, pectin and urea of specific proportioning to use cooperatively, the stability and chelation percent of chelating amino acids zinc fertilizer are improved, while also making it have slow release, its fertilizer efficiency persistence is improved, increases crop yield.Therefore, it can be widely used in production estimation.
Description
Technical field
The invention belongs to technical field of chemical fertilizer production, and in particular to a kind of chelating amino acids zinc fertilizer and preparation method thereof, special
It is not related to a kind of purplish red shepherd's purse chelating amino acids zinc fertilizer and preparation method thereof.
Background technology
Zinc is one of trace element necessary to plant growth, is the component or activator of a variety of enzymes, is primarily involved in plant
Breathe, the physiology course such as photosynthetic, redox reaction, and participate in the synthesis of the important substances such as nucleoprotein, auxin.Zinc-deficiency meeting
Crop production maldevelopment is caused, yield and quality is reduced, and intake of the human and animal to zinc can be influenceed indirectly, and then is influenceed
Body health.Application of zinc fertilizer is preventing and treating or the major measure for correcting crop zinc deficiency symptom.Because fertilizer of chelated zinc be difficult in soil by
Fixed, mobility and absorptivity in plant outclass Inorganic Zn fertilizer, therefore its stability and fertilizer efficiency are better than Inorganic Zn fertilizer.
In fertilizer of chelated zinc preparation process, prior art frequently with chelating agent have EDTA, humic acid and amino acid etc., profit
With these chelating agents with chelating divalent zinc ion, and then form fertilizer of chelated zinc.In above-mentioned chelating agent, though EDTA sequestering powers are strong,
But its cost is high, glyoxalic acid and formaldehyde etc. are easily degraded in soil, plant growth is endangered;Humic acid molecular weight is larger,
It is complicated, influence the absorption efficiency of its fertilizer of chelated zinc formed;Although amino acid will not produce harmful effect to plant,
It is that hydrolysis easily occurs because its sequestering power is weak, in plant or is inactivated easily being reacted with other anion, therefore causes it
The chelation percent of the fertilizer of chelated zinc formed is low, and stability is poor.Therefore, how the amino that a kind of stability is good, chelation percent is high is provided
Sour fertilizer of chelated zinc and preparation method thereof is a technical problem of those skilled in the art's urgent need to resolve.
The content of the invention
Therefore, the existing defect that chelating amino acids zinc fertilizer existence and stability is poor, chelation percent is low to be solved by this invention, enters
And chelating amino acids zinc fertilizer that a kind of stability is good, chelation percent is high, absorptivity is high and preparation method thereof is provided.
In order to solve the above technical problems, the technical solution adopted by the present invention is as follows:
Chelating amino acids zinc fertilizer provided by the present invention, includes the raw material of following parts by weight:
Further, the raw material of following parts by weight is included:
In addition, the present invention also provides the preparation method of above-mentioned chelating amino acids zinc fertilizer, comprise the following steps:
1) soluble zinc salt, amino acid, carboxymethyl cellulose, urea, pectin and water are mixed, obtains mixed liquor;
2) pH of the mixed liquor is adjusted, and is reacted;
3) to step 2) processing after mixed liquor be aged and filtered successively, obtain chelating amino acids zinc fertilizer.
Further, step 1) in, the gross mass of the quality of the water and the amino acid and the soluble zinc salt it
Than for (5-10):1.
Further, step 2) in, adjust the pH to 3-5 of the mixed liquor.
Further, step 2) in, the reaction temperature of the reaction is 50-90 DEG C, the time is 2-4h.
Further, step 3) in, the temperature of the ageing is 50-90 DEG C, the time is 8-24h.
Further, step 1) in, the soluble zinc salt is zinc sulfate, zinc carbonate, zinc chloride, basic zinc sulfate and alkali
At least one of formula zinc carbonate.
Further, step 1) in, the amino acid is alanine, glycine, methionine, tryptophan, cysteine, Guang
At least one of propylhomoserin, leucine, isoleucine and serine.
Compared with prior art, the present invention has the advantages that:
(1) the chelating amino acids zinc fertilizer that the embodiment of the present invention is provided, using carboxymethyl cellulose and pectin, be first with
Hydrogen bond is formed between amino acid, the pericentral carboxymethyl cellulose of zinc and pectin for being looped around chelating amino acids using these,
Stop hydrone and other anion, prevent the zinc of chelating amino acids from occurring hydrolysis or reacting and lose with other anion
It is living, the stability of chelating amino acids zinc fertilizer is improved, while the indirect chelation percent for improving chelating amino acids zinc fertilizer and organic point
Chemical compatibility between son;Second it is that carboxymethyl cellulose and pectin make chelating amino acids zinc fertilizer have certain viscosity, reduction
Interaction between zinc and hydrone, other anion and the speed mutually migrated, improve chelating amino acids zinc fertilizer
Stability;Three are that carboxymethyl cellulose and pectin can improve the chelating of chelating amino acids zinc fertilizer again with chelated zinc in itself
Rate.Second it is urea in itself containing the big nitrogen of electronegativity, the urea of these small molecules in addition, be first to provide nutrient using urea
It is interspersed between above-mentioned organic polymer, and hydrogen bond is formed by the big nitrogen of electronegativity therewith, can equally stops hydrone and other
Anion.In a word, select the raw material of specific proportioning to use cooperatively, improve the stability and chelation percent of chelating amino acids zinc fertilizer.
(2) the chelating amino acids zinc fertilizer that the embodiment of the present invention is provided, is also made using carboxymethyl cellulose, pectin and urea
Chelating amino acids zinc fertilizer has slow release, improves its fertilizer efficiency persistence;Furthermore, also can phase between carboxymethyl cellulose and pectin
Interaction, forms the copolymer of network structure, hydrone and other anion is blocked, while also improving zinc-amino acid chelate
The slow release effect of fertilizer.
(3) preparation method for the chelating amino acids zinc fertilizer that the embodiment of the present invention is provided, because using above-mentioned specific proportioning
Raw material, therefore it has above-mentioned advantage.
(4) preparation method for the chelating amino acids zinc fertilizer that the embodiment of the present invention is provided, by limit pH, reaction temperature and
Time, Aging Temperature and time, the raw material of above-mentioned specific proportioning is adapted to, in preparation process, zinc-amino acid chelate has been improved
The stability and chelation percent of fertilizer.
Embodiment
In order to which the object, technical solutions and advantages of the present invention are better described, below in conjunction with specific embodiment to this hair
It is bright to be described further.The present invention can be embodied in many different forms, and should not be construed as limited to set forth herein
Embodiment.Opposite there is provided these embodiments so that the disclosure will be thorough and complete, and the design of the present invention will be filled
Divide and convey to those skilled in the art, the present invention will only be defined by the appended claims.
Embodiment 1
A kind of chelating amino acids zinc fertilizer is present embodiments provided, by 55g cysteines, 35g zinc sulfate, 8g carboxymethyl celluloses
Element, 10g urea and 2g pectin composition;
The preparation method of above-mentioned chelating amino acids zinc fertilizer, comprises the following steps:
1) 720g water is weighed, and adds soluble zinc salt, amino acid, carboxymethyl cellulose, urea and pectin thereto, is mixed
Close uniform, obtain mixed liquor;
2) pH of the mixed liquor is adjusted to 4, and in reacting 3h at 70 DEG C;
3) by step 2) mixed liquor after processing is at 70 DEG C in being aged 18h;
4) to step 3) processing after mixed liquor filter, obtain chelating amino acids zinc fertilizer.
Embodiment 2
A kind of chelating amino acids zinc fertilizer is present embodiments provided, by 53g glycine, 45g zinc chloride, 7g carboxymethyl celluloses
Element, 12g urea and 2g pectin composition;
The preparation method of above-mentioned chelating amino acids zinc fertilizer, comprises the following steps:
1) 980g water is weighed, and adds soluble zinc salt, amino acid, carboxymethyl cellulose, urea and pectin thereto, is mixed
Close uniform, obtain mixed liquor;
2) pH of the mixed liquor is adjusted to 3, and in reacting 2h at 90 DEG C;
3) by step 2) mixed liquor after processing is at 50 DEG C in being aged 24h;
4) to step 3) processing after mixed liquor filter, obtain chelating amino acids zinc fertilizer.
Embodiment 3
A kind of chelating amino acids zinc fertilizer is present embodiments provided, by 56g alanine, 34g zinc carbonates, 8g carboxymethyl celluloses
Element, 8g urea and 3g pectin composition;
The preparation method of above-mentioned chelating amino acids zinc fertilizer, comprises the following steps:
1) 450g water is weighed, and adds soluble zinc salt, amino acid, carboxymethyl cellulose, urea and pectin thereto, is mixed
Close uniform, obtain mixed liquor;
2) pH of the mixed liquor is adjusted to 4, and in reacting 4h at 50 DEG C;
3) by step 2) mixed liquor after processing is at 90 DEG C in being aged 8h;
4) to step 3) processing after mixed liquor filter, obtain chelating amino acids zinc fertilizer.
Embodiment 4
A kind of chelating amino acids zinc fertilizer is present embodiments provided, by 20g methionine, 20g tryptophans, 10g cystines, 20g
Zinc sulfate, 20g basic zinc carbonates, 5g carboxymethyl celluloses, 15g urea and 1g pectin composition;
The preparation method of above-mentioned chelating amino acids zinc fertilizer, comprises the following steps:
1) 810g water is weighed, and adds soluble zinc salt, amino acid, carboxymethyl cellulose, urea and pectin thereto, is mixed
Close uniform, obtain mixed liquor;
2) pH of the mixed liquor is adjusted to 5, and in reacting 2.5h at 80 DEG C;
3) by step 2) mixed liquor after processing is at 60 DEG C in being aged 20h;
4) to step 3) processing after mixed liquor filter, obtain chelating amino acids zinc fertilizer.
Embodiment 5
Present embodiments provide a kind of chelating amino acids zinc fertilizer, by 30g serines, 20g isoleucines, 10g alanine,
20g basic zinc sulfates, 10g basic zinc carbonates, 10g carboxymethyl celluloses, 6g urea and 4g pectin composition;
The preparation method of above-mentioned chelating amino acids zinc fertilizer, comprises the following steps:
1) 640g water is weighed, and adds soluble zinc salt, amino acid, carboxymethyl cellulose, urea and pectin thereto, is mixed
Close uniform, obtain mixed liquor;
2) pH of the mixed liquor is adjusted to 4, and in reacting 3.5h at 60 DEG C;
3) by step 2) mixed liquor after processing is at 80 DEG C in being aged 12h;
4) to step 3) processing after mixed liquor filter, obtain chelating amino acids zinc fertilizer.
Comparative example 1
This comparative example provides a kind of chelating amino acids zinc fertilizer, by 55g cysteines, 35g zinc sulfate, 10g urea and 2g
Pectin is constituted;
The preparation method of above-mentioned chelating amino acids zinc fertilizer, comprises the following steps:
1) 720g water is weighed, and adds soluble zinc salt, amino acid, urea and pectin thereto, is well mixed, is mixed
Close liquid;
2) pH of the mixed liquor is adjusted to 4, and in reacting 3h at 70 DEG C;
3) by step 2) mixed liquor after processing is at 70 DEG C in being aged 18h;
4) to step 3) processing after mixed liquor filter, obtain chelating amino acids zinc fertilizer.
Comparative example 2
This comparative example provides a kind of chelating amino acids zinc fertilizer, by 55g cysteines, 35g zinc sulfate, 8g carboxymethyl celluloses
Element and 10g urea composition;
The preparation method of above-mentioned chelating amino acids zinc fertilizer, comprises the following steps:
1) 720g water is weighed, and adds soluble zinc salt, amino acid and carboxymethyl cellulose, urea thereto, mixing is equal
It is even, obtain mixed liquor;
2) pH of the mixed liquor is adjusted to 4, and in reacting 3h at 70 DEG C;
3) by step 2) mixed liquor after processing is at 70 DEG C in being aged 18h;
4) to step 3) processing after mixed liquor filter, obtain chelating amino acids zinc fertilizer.
Comparative example 3
This comparative example provides a kind of chelating amino acids zinc fertilizer, by 20g methionine, 20g tryptophans, 10g cystines, 20g
Zinc sulfate, 20g basic zinc carbonates, 5g carboxymethyl celluloses and 1g pectin composition;
The preparation method of above-mentioned chelating amino acids zinc fertilizer, comprises the following steps:
1) 810g water is weighed, and adds soluble zinc salt, amino acid, carboxymethyl cellulose and pectin thereto, mixing is equal
It is even, obtain mixed liquor;
2) pH of the mixed liquor is adjusted to 5, and in reacting 2.5h at 80 DEG C;
3) by step 2) mixed liquor after processing is at 60 DEG C in being aged 20h;
4) to step 3) processing after mixed liquor filter, obtain chelating amino acids zinc fertilizer.
Test example 1
Zn chelation percents in chelating amino acids zinc fertilizer obtained by the various embodiments described above and comparative example are measured, accordingly
Measurement result is as shown in table 1 below:
The Zn chelation percents of the chelating amino acids zinc fertilizer of table 1
Zn chelation percents | |
Embodiment 1 | 99.99% |
Embodiment 2 | 99.80% |
Embodiment 3 | 99.82% |
Embodiment 4 | 100% |
Embodiment 5 | 100% |
Comparative example 1 | 45% |
Comparative example 2 | 40% |
Comparative example 3 | 70% |
It can be learnt from table 1:Used cooperatively using the raw material of specific proportioning of the invention, chelating amino acids zinc fertilizer can be significantly improved
Chelation percent.
Test example 2
Stability to the chelating amino acids zinc fertilizer obtained by the various embodiments described above and comparative example is measured, assay method
It is as follows:Chelating amino acids zinc fertilizer is diluted with water to the dilution that concentration is 100ppm, takes the 2ml dilutions to seal at room temperature
Preserve, preserve respectively after 0h, 24h, 48h and 72h, the amount that free state zinc in dilution is determined respectively accounts for total zinc amount in dilution
Ratio, corresponding measurement result is as shown in table 2 below:
The stability of the chelating amino acids zinc fertilizer of table 2
0h | 24h | 48h | 72h | |
Embodiment 1 | 0.01% | 0.1% | 0.25% | 0.5% |
Embodiment 2 | 0.20% | 0.35% | 0.5% | 0.85% |
Embodiment 3 | 0.18% | 0.32% | 0.48% | 0.81% |
Embodiment 4 | 0 | 0.07% | 0.18% | 0.37% |
Embodiment 5 | 0 | 0.08% | 0.17% | 0.38% |
Comparative example 1 | 55% | 70% | 90% | 95% |
Comparative example 2 | 60% | 75% | 95% | 97% |
Comparative example 3 | 30% | 34% | 37% | 43% |
It can be learnt from table 2:Used cooperatively using the raw material of specific proportioning of the invention, chelating amino acids zinc fertilizer can be significantly improved
Stability, while also Zn ions can be made slowly to discharge, improve the slow release effect of chelating amino acids zinc fertilizer, it is to avoid largely release
The Zn ions put, have little time to be absorbed by crops and inactivate.
Test example 3
Zinc-amino acid chelate nutriment in a fertilizer obtained by the various embodiments described above and comparative example is not diluted to zinc content (herein containing zinc
Amount refers to the total amount of Free Zinc and chelated zinc) dilution that is 220ppm, field experiment is carried out, process of the test is as follows:
For examination ground:Fujian Foochow somewhere, soil pH=5.4.
Experimental cultivar:The purplish red shepherd's purse seed that Foochow Yongkang seeds company produces.
Experimental design:If the field area of 4 equal fertility and production environment, is respectively designated as Ith area, IIth area, IIIth area and IVth area,
Per the square meter of area 40, per area in triplicate, the average zinc amount (mg/kg) surveyed in fresh purplish red shepherd's purse, wherein,
Ith area:Blank control, sprays equal clear water;
IIth area:Started to spray above-mentioned dilution in 10 days after seedling replanting 1 time, 100 kilograms of every mu of the amount of spraying;
IIIth area;Started to spray above-mentioned dilution first time in 10 days after seedling replanting, then sprayed for the second time, twice every 10 days
The amount of spraying is 100 kilograms every mu;
IVth area;Started to spray above-mentioned dilution in 10 days after seedling replanting for the first time, then sprayed second every 10 days, then every
Third time is sprayed within 10 days, three amounts of spraying are 100 kilograms every mu;
Field test effect is tested, as shown in table 3 below and table 4:
Zn content (mg/kg) in the fresh purplish red shepherd's purse of table 3
Ith area | IIth area | IIIth area | IVth area | |
Embodiment 1 | — | 19 | 24.36 | 29.12 |
Embodiment 2 | — | 17.94 | 23.15 | 28.31 |
Embodiment 3 | — | 18.23 | 23.5 | 28.54 |
Embodiment 4 | — | 20 | 25.6 | 30.4 |
Embodiment 5 | — | 20.3 | 25.7 | 30.5 |
Comparative example 1 | — | 9.1 | 12.6 | 14.34 |
Comparative example 2 | — | 8.5 | 11.3 | 13.5 |
Comparative example 3 | — | 13 | 16.3 | 19.5 |
Blank control | 5.48 | — | — | — |
* in terms of fresh vegetables quality, fresh vegetables refer to that vegetables are scrubbed and dry in the shade after quality.
It can be learnt from table 3:The chelating amino acids zinc fertilizer of the present invention can significantly improve the Zn content in purplish red shepherd's purse, and right
Zinc has excellent absorbability.
Table 4 is compared with blank control, the units increased in production of fresh purplish red shepherd's purse
Ith area | IVth area | |
Embodiment 1 | — | 39% |
Embodiment 2 | — | 38.53% |
Embodiment 3 | — | 38.42% |
Embodiment 4 | — | 40.2% |
Embodiment 5 | — | 40% |
Comparative example 1 | — | 17.53% |
Comparative example 2 | — | 16.39% |
Comparative example 3 | — | 23.5% |
Blank control | 0 | — |
It can be learnt from table 4:The chelating amino acids zinc fertilizer of the present invention can significantly improve the yield of purplish red shepherd's purse, can reach
40.2%.
Obviously, above-described embodiment is only intended to clearly illustrate example, and the not restriction to embodiment.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of change or
Change.There is no necessity and possibility to exhaust all the enbodiments.And the obvious change thus extended out or
Among changing still in the protection domain of the invention.
Claims (9)
1. a kind of chelating amino acids zinc fertilizer, includes the raw material of following parts by weight:
2. chelating amino acids zinc fertilizer according to claim 1, it is characterised in that include the raw material of following parts by weight:
3. a kind of preparation method of the chelating amino acids zinc fertilizer described in claim 1 or 2, comprises the following steps:
1) soluble zinc salt, amino acid, carboxymethyl cellulose, urea, pectin and water are mixed, obtains mixed liquor;
2) pH of the mixed liquor is adjusted, and is reacted;
3) to step 2) processing after mixed liquor be aged and filtered successively, obtain chelating amino acids zinc fertilizer.
4. preparation method according to claim 3, it is characterised in that step 1) in, the quality of the water and the amino
The ratio between gross mass of sour and described soluble zinc salt is (5-10):1.
5. the preparation method according to claim 3 or 4, it is characterised in that step 2) in, adjust the pH of the mixed liquor to
3-5。
6. the preparation method according to claim any one of 3-5, it is characterised in that step 2) in, the reaction of the reaction
Temperature is 50-90 DEG C, the time is 2-4h.
7. the preparation method according to claim any one of 3-6, it is characterised in that step 3) in, the temperature of the ageing
It is 8-24h for 50-90 DEG C, time.
8. the preparation method according to claim any one of 3-7, it is characterised in that step 1) in, the soluble zinc salt
For at least one of zinc sulfate, zinc carbonate, zinc chloride, basic zinc sulfate and basic zinc carbonate.
9. the preparation method according to claim any one of 3-8, it is characterised in that step 1) in, the amino acid is third
At least one in propylhomoserin, glycine, methionine, tryptophan, cysteine, cystine, leucine, isoleucine and serine
Kind.
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Application publication date: 20170829 |