CN107162779A - A kind of chelating amino acids fertiliser containing magnesium and preparation method thereof - Google Patents
A kind of chelating amino acids fertiliser containing magnesium and preparation method thereof Download PDFInfo
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- CN107162779A CN107162779A CN201710495526.5A CN201710495526A CN107162779A CN 107162779 A CN107162779 A CN 107162779A CN 201710495526 A CN201710495526 A CN 201710495526A CN 107162779 A CN107162779 A CN 107162779A
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- 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
- C05G3/90—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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Abstract
The invention discloses a kind of chelating amino acids fertiliser containing magnesium and preparation method thereof.The chelating amino acids fertiliser containing magnesium includes the raw material of following parts by weight：55 65 parts of amino acid, 25 35 parts of soluble magnesium salt, 58 parts of carboxymethyl cellulose, 5 12 parts of urea, 47 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 fertiliser containing magnesium 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 fertiliser containing magnesium and preparation method thereof.
Background technology
Magnesium is the middle trace element needed for plant normal growth development, is the main mineral elements for constituting chlorophyll, directly
Photosynthesis and sugar, the synthesis of protein of plant are influenceed, lacking for it can bring irremediable harm to plant growth, sternly
During weight, cause plant leaf blade spot and necrosis occur, influence plant products.Therefore, magnesium is on plant physiology and in economic well-being of workers and staff
Suffer from highly important meaning.For magnesium needed for supplementing plant, typically apply magnesium fertilizer in soil, it is existing to contain fertiliser containing magnesium
Material is divided into the inorganic fertiliser containing magnesium by representative of magnesium sulfate and the chelating fertiliser containing magnesium by representative of the magnesium of the chelant ties such as EDTA, because of chelating
Fertiliser containing magnesium is difficult to be fixed in soil, and the mobility and absorptivity in plant outclass inorganic fertiliser containing magnesium, thus its stability and
Fertilizer efficiency is better than inorganic fertiliser containing magnesium.
Chelating fertiliser containing magnesium preparation process in, prior art frequently with chelating agent have EDTA, humic acid and amino acid etc., profit
With these chelating agents with chelating divalent magnesium ion, and then form chelating fertiliser containing magnesium.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 chelating fertiliser containing magnesium 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 chelating fertiliser containing magnesium formed is low, and stability is poor.Therefore, how the amino that a kind of stability is good, chelation percent is high is provided
Acid chelating fertiliser containing magnesium 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 fertiliser containing magnesium existence and stability is poor, chelation percent is low to be solved by this invention, enters
And chelating amino acids fertiliser containing magnesium 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 fertiliser containing magnesium 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：
Further, in addition to,
1-2 parts of bentonite
3-4 parts of phosphorus ammonium.
In addition, present invention also offers the preparation method of above-mentioned chelating amino acids fertiliser containing magnesium, comprising the following steps：
1) by soluble magnesium salt, amino acid, carboxymethyl cellulose, urea, pectin and water mix, or by soluble magnesium salt,
Amino acid, carboxymethyl cellulose, urea, pectin, bentonite, phosphorus ammonium and water mixing, obtain mixed liquor；
2) chelatropic reaction is carried out to the mixed liquor；
3) to the step 2) processing after mixed liquor be aged and dried successively, obtain chelating amino acids fertiliser containing magnesium.
Further, step 1) in, the gross mass of the quality of the water and the amino acid and the soluble magnesium salt it
Than for (18-25)：1.
Further, step 2) in, the temperature of the chelatropic reaction is 75-85 DEG C, and the time is that 8-9h, pH are 6-7.
Further, step 3) in, the temperature of the ageing is 50-60 DEG C, the time is 15-20h；
The temperature of the drying is 100-130 DEG C.
Further, step 3) in, before the drying, in addition to gained mixture after the ageing is concentrated
Step.
Further, step 1) in, step 1) in, the soluble magnesium salt is in magnesium sulfate, magnesium chloride and magnesium nitrate
It is at least one.
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 fertiliser containing magnesium 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 magnesium and pectin for being looped around chelating amino acids using these,
Stop hydrone and other anion, prevent the magnesium of chelating amino acids from occurring hydrolysis or reacting and lose with other anion
It is living, the stability of chelating amino acids fertiliser containing magnesium is improved, while the indirect chelation percent for improving chelating amino acids fertiliser containing magnesium and organic point
Chemical compatibility between son；Second it is that carboxymethyl cellulose and pectin make chelating amino acids fertiliser containing magnesium have certain viscosity, reduction
Interaction between magnesium and hydrone, other anion and the speed mutually migrated, improve chelating amino acids fertiliser containing magnesium
Stability；Three are that carboxymethyl cellulose and pectin can improve the chelating of chelating amino acids fertiliser containing magnesium again with chelated magnesium 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 fertiliser containing magnesium.
(2) the chelating amino acids fertiliser containing magnesium that the embodiment of the present invention is provided, is also made using carboxymethyl cellulose, pectin and urea
Chelating amino acids fertiliser containing magnesium 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 amino acid chelated magnesium
The slow release effect of fertilizer；Bentonite and phosphorus ammonium provide nutrition, while bentonite also provides point to be chelated, by itself and amino acid
Mixing, improves bentonitic utilization rate；Finally, the specific proportioning between each raw material, can equally improve chelating amino acids fertiliser containing magnesium
Stability, chelation percent and absorptivity.
(3) preparation method for the chelating amino acids fertiliser containing magnesium that the embodiment of the present invention is provided, because using above-mentioned specific proportioning
Raw material, therefore it has above-mentioned advantage.
(4) the chelating amino acids fertiliser containing magnesium that the embodiment of the present invention is provided, by limiting pH, reaction temperature and time, ageing
Temperature and time, has adapted to the raw material of above-mentioned specific proportioning, in preparation process, improves the stability of chelating amino acids fertiliser containing magnesium
And chelation percent.
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 fertiliser containing magnesium is present embodiments provided, it is fine by 60g cysteines, 30g magnesium sulfate, 6.5g carboxymethyls
Dimension element, 8g urea and 5.5g pectin composition；
The preparation method of above-mentioned chelating amino acids fertiliser containing magnesium, comprises the following steps：
1) 1890g water, and addition soluble magnesium salt, amino acid, carboxymethyl cellulose, urea and pectin thereto are weighed,
It is well mixed, obtain mixed liquor；
2) by the mixed liquor in 80 DEG C, pH be 6.5 times chelatropic reaction 6.5h；
3) by step 2) mixed liquor after processing is at 55 DEG C in being aged 18h；
4) to step 3) processing after mixed liquor concentrate, and by concentrate at 115 DEG C drying, obtain amino acid chela
Close fertiliser containing magnesium.
Embodiment 2
A kind of chelating amino acids fertiliser containing magnesium is present embodiments provided, by 57g glycine, 32g magnesium chlorides, 6g carboxymethyl celluloses
Element, 10g urea and 5g pectin composition；
The preparation method of above-mentioned chelating amino acids fertiliser containing magnesium, comprises the following steps：
1) 1602g water, and addition soluble magnesium salt, amino acid, carboxymethyl cellulose, urea and pectin thereto are weighed,
It is well mixed, obtain mixed liquor；
2) by the mixed liquor in 75 DEG C, pH be 7 times chelatropic reaction 8h；
3) by step 2) mixed liquor after processing is at 50 DEG C in being aged 20h；
4) to step 3) processing after mixed liquor concentrate, and by concentrate at 130 DEG C drying, obtain amino acid chela
Close fertiliser containing magnesium.
Embodiment 3
A kind of chelating amino acids fertiliser containing magnesium is present embodiments provided, by 63g alanine, 28g magnesium nitrates, 7g carboxymethyl celluloses
Element, 8g urea and 6g pectin composition；
The preparation method of above-mentioned chelating amino acids fertiliser containing magnesium, comprises the following steps：
1) 2275g water, and addition soluble magnesium salt, amino acid, carboxymethyl cellulose, urea and pectin thereto are weighed,
It is well mixed, obtain mixed liquor；
2) by the mixed liquor in 85 DEG C, pH be 6 times chelatropic reaction 9h；
3) by step 2) mixed liquor after processing is at 60 DEG C in being aged 15h；
4) to step 3) processing after mixed liquor concentrate, and by concentrate at 100 DEG C drying, obtain amino acid chela
Close fertiliser containing magnesium.
Embodiment 4
A kind of chelating amino acids fertiliser containing magnesium is present embodiments provided, by 25g methionine, 20g tryptophans, 10g cystines, 20g
Magnesium sulfate, 15g magnesium nitrates, 5g carboxymethyl celluloses, 12g urea and 4g pectin composition；
The preparation method of above-mentioned chelating amino acids fertiliser containing magnesium, comprises the following steps：
1) 2250g water, and addition soluble magnesium salt, amino acid, carboxymethyl cellulose, urea and pectin thereto are weighed,
It is well mixed, obtain mixed liquor；
2) by the mixed liquor in 85 DEG C, pH be 6 times chelatropic reaction 9h；
3) by step 2) mixed liquor after processing is at 60 DEG C in being aged 15h；
4) to step 3) processing after mixed liquor concentrate, and by concentrate at 100 DEG C drying, obtain amino acid chela
Close fertiliser containing magnesium.
Embodiment 5
Present embodiments provide a kind of chelating amino acids fertiliser containing magnesium, by 25g serines, 25g isoleucines, 15g alanine,
15g magnesium chlorides, 10g magnesium sulfate, 8g carboxymethyl celluloses, 5g urea and 7g pectin composition；
The preparation method of above-mentioned chelating amino acids fertiliser containing magnesium, comprises the following steps：
1) 1620g water, and addition soluble magnesium salt, amino acid, carboxymethyl cellulose, urea and pectin thereto are weighed,
It is well mixed, obtain mixed liquor；
2) by the mixed liquor in 75 DEG C, pH be 7 times chelatropic reaction 8h；
3) by step 2) mixed liquor after processing is at 50 DEG C in being aged 20h；
4) to step 3) processing after mixed liquor concentrate, and by concentrate at 120 DEG C drying, obtain amino acid chela
Close fertiliser containing magnesium.
Embodiment 6
A kind of chelating amino acids fertiliser containing magnesium is present embodiments provided, it is fine by 60g cysteines, 30g magnesium sulfate, 6.5g carboxymethyls
Tie up element, 8g urea, 5.5g pectin, 1g bentonites and 4g phosphorus ammonium composition；
The preparation method of above-mentioned chelating amino acids fertiliser containing magnesium, comprises the following steps：
1) weigh 1890g water, and add soluble magnesium salt thereto, it is amino acid, carboxymethyl cellulose, urea, pectin, swollen
Profit soil and phosphorus ammonium, are well mixed, obtain mixed liquor；
2) by the mixed liquor in 80 DEG C, pH be 6.5 times chelatropic reaction 6.5h；
3) by step 2) mixed liquor after processing is at 55 DEG C in being aged 18h；
4) to step 3) processing after mixed liquor concentrate, and by concentrate at 115 DEG C drying, obtain amino acid chela
Close fertiliser containing magnesium.
Embodiment 7
A kind of chelating amino acids fertiliser containing magnesium is present embodiments provided, by 57g glycine, 32g magnesium chlorides, 6g carboxymethyl celluloses
Element, 10g urea, 5g pectin, 2g bentonites and 3g phosphorus ammonium composition；
The preparation method of above-mentioned chelating amino acids fertiliser containing magnesium, comprises the following steps：
1) weigh 890g water, and add soluble magnesium salt thereto, it is amino acid, carboxymethyl cellulose, urea, pectin, swollen
Profit soil and phosphorus ammonium, are well mixed, obtain mixed liquor；
2) by the mixed liquor in 75 DEG C, pH be 7 times chelatropic reaction 8h；
3) by step 2) mixed liquor after processing is at 50 DEG C in being aged 20h；
4) to step 3) processing after mixed liquor concentrate, and by concentrate at 130 DEG C drying, obtain amino acid chela
Close fertiliser containing magnesium.
Comparative example 1
This comparative example provides a kind of chelating amino acids fertiliser containing magnesium, by 60g cysteines, 30g magnesium sulfate, 8g urea and 5.5g
Pectin is constituted；
The preparation method of above-mentioned chelating amino acids fertiliser containing magnesium, comprises the following steps：
1) 1890g water is weighed, and adds soluble magnesium salt, amino acid, urea and pectin thereto, is well mixed, obtains
Mixed liquor；
2) by the mixed liquor in 80 DEG C, pH be 6.5 times chelatropic reaction 6.5h；
3) by step 2) mixed liquor after processing is at 55 DEG C in being aged 18h；
4) to step 3) processing after mixed liquor concentrate, and by concentrate at 115 DEG C drying, obtain amino acid chela
Close fertiliser containing magnesium.
Comparative example 2
This comparative example provides a kind of chelating amino acids fertiliser containing magnesium, fine by 60g cysteines, 30g magnesium sulfate, 6.5g carboxymethyls
Dimension element and 8g urea composition；
The preparation method of above-mentioned chelating amino acids fertiliser containing magnesium, comprises the following steps：
1) 1890g water is weighed, and adds soluble magnesium salt, amino acid and carboxymethyl cellulose, urea thereto, mixing is equal
It is even, obtain mixed liquor；
2) by the mixed liquor in 80 DEG C, pH be 6.5 times chelatropic reaction 6.5h；
3) by step 2) mixed liquor after processing is at 55 DEG C in being aged 18h；
4) to step 3) processing after mixed liquor concentrate, and by concentrate at 115 DEG C drying, obtain amino acid chela
Close fertiliser containing magnesium.
Comparative example 3
This comparative example provides a kind of chelating amino acids fertiliser containing magnesium, by 25g methionine, 20g tryptophans, 10g cystines, 20g
Magnesium sulfate, 15g magnesium nitrates, 5g carboxymethyl celluloses and 4g pectin composition；
The preparation method of above-mentioned chelating amino acids fertiliser containing magnesium, comprises the following steps：
1) 2250g water is weighed, and adds soluble magnesium salt, amino acid, carboxymethyl cellulose and pectin thereto, mixing is equal
It is even, obtain mixed liquor；
2) by the mixed liquor in 85 DEG C, pH be 6 times chelatropic reaction 9h；
3) by step 2) mixed liquor after processing is at 60 DEG C in being aged 15h；
4) to step 3) processing after mixed liquor concentrate, and by concentrate at 100 DEG C drying, obtain amino acid chela
Close fertiliser containing magnesium.
Test example 1
Mg chelation percents in chelating amino acids fertiliser containing magnesium obtained by the various embodiments described above and comparative example are measured, accordingly
Measurement result is as shown in table 1 below：
Mg chelation percents in the chelating amino acids fertiliser containing magnesium of table 1
| Mg chelation percents | |
| Embodiment 1 | 99.99% |
| Embodiment 2 | 99.88% |
| Embodiment 3 | 99.87% |
| Embodiment 4 | 100% |
| Embodiment 5 | 100% |
| Embodiment 6 | 99.99% |
| Embodiment 7 | 99.95% |
| Comparative example 1 | 44% |
| Comparative example 2 | 41% |
| Comparative example 3 | 72% |
It can be learnt from table 1：Used cooperatively using the raw material of specific proportioning of the invention, chelating amino acids fertiliser containing magnesium can be significantly improved
Middle Mg chelation percent, can reach 100%.
Test example 2
Stability to the chelating amino acids fertiliser containing magnesium obtained by the various embodiments described above and comparative example is measured, assay method
It is as follows：By the chelating amino acids fertiliser containing magnesium dilution soluble in water for forming concentration for 100ppm, take the 2ml dilutions close at room temperature
Envelope is preserved, and is preserved respectively after 0h, 24h, 48h and 72h, and the amount that free state magnesium in dilution is determined respectively accounts for total magnesium amount in dilution
Ratio, corresponding measurement result is as shown in table 2 below：
The stability of the chelating amino acids fertiliser containing magnesium of table 2
| 0h | 24h | 48h | 72h | |
| Embodiment 1 | 0.01% | 0.12% | 0.28% | 0.54% |
| Embodiment 2 | 0.12% | 0.37% | 0.56% | 0.89% |
| Embodiment 3 | 0.13% | 0.34% | 0.53% | 0.89% |
| Embodiment 4 | 0 | 0.13% | 0.25% | 0.41% |
| Embodiment 5 | 0 | 0.15% | 0.27% | 0.46% |
| Embodiment 6 | 0.01% | 0.15% | 0.29% | 0.57% |
| Embodiment 7 | 0.05% | 0.18% | 0.3% | 0.72% |
| Comparative example 1 | 56% | 65% | 90% | 95% |
| Comparative example 2 | 59% | 74% | 95% | 98% |
| Comparative example 3 | 28% | 31% | 37% | 45% |
It can be learnt from table 2：Used cooperatively using the raw material of specific proportioning of the invention, chelating amino acids fertiliser containing magnesium can be significantly improved
Stability, while also Mg ions can be made slowly to discharge, improve the slow release effect of chelating amino acids fertiliser containing magnesium, it is to avoid largely release
The Mg ions put, have little time to be absorbed by crops and inactivate.
Test example 3
Amino acid chelated magnesium nutriment in a fertilizer obtained by the various embodiments described above and comparative example is not diluted to magnesium content (herein containing magnesium
Amount refers to the total amount of free magnesium and chelated magnesium) dilution that is 220ppm, field experiment is carried out, process of the test is as follows：
For examination ground：Fujian Foochow somewhere, soil pH=6.
Experimental cultivar：Tomato.
Experimental design：It is flat per area 40 if the field area of 2 equal fertility and production environment, is respectively designated as Ith area and IIth area
Rice, per area in triplicate, surveys average magnesium content (mg/kg) in tomato, wherein,
Ith area：Blank control, sprays equal clear water；
IIth 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：
Average magnesium content (mg/kg) in the tomato of table 3
| Ith area | IIth area | |
| Embodiment 1 | — | 135 |
| Embodiment 2 | — | 130 |
| Embodiment 3 | — | 131 |
| Embodiment 4 | — | 140 |
| Embodiment 5 | — | 141 |
| Embodiment 6 | — | 136 |
| Embodiment 7 | — | 133 |
| Comparative example 1 | — | 100 |
| Comparative example 2 | — | 99 |
| Comparative example 3 | — | 118 |
| Blank control | 90 | — |
* 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 amino acid chelated magnesium of the present invention can significantly improve the content of magnesium in tomato, and have to magnesium
Excellent absorbability.
Table 4 is compared with blank control, every mu of units increased in production of tomato
| Ith area | IIth area | |
| Embodiment 1 | — | 37% |
| Embodiment 2 | — | 36% |
| Embodiment 3 | — | 36.2% |
| Embodiment 4 | — | 38% |
| Embodiment 5 | — | 38% |
| Embodiment 6 | — | 38% |
| Embodiment 7 | — | 37% |
| Comparative example 1 | — | 14% |
| Comparative example 2 | — | 15% |
| Comparative example 3 | — | 22% |
| Blank control | 0 | — |
It can be learnt from table 4：The chelating amino acids fertiliser containing magnesium of the present invention can significantly improve the yield of tomato, can reach
38%.
Test example 4
Stability to the chelating amino acids fertiliser containing magnesium obtained by the various embodiments described above and comparative example is measured, assay method
It is as follows：By the chelating amino acids fertiliser containing magnesium dilution soluble in water for forming concentration for 100ppm, take the 2ml dilutions close at room temperature
Envelope is preserved, after preserving 30 days, has seen whether precipitation generation, and corresponding measurement result is as shown in table 5 below：
The stability of the chelating amino acids fertiliser containing magnesium of table 5
It can be learnt from table 5：Used cooperatively using the raw material of specific proportioning of the invention, chelating amino acids fertiliser containing magnesium can be significantly improved
Stability.
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 (10)
1. a kind of chelating amino acids fertiliser containing magnesium, includes the raw material of following parts by weight：
2. chelating amino acids fertiliser containing magnesium according to claim 1, it is characterised in that include the raw material of following parts by weight：
3. chelating amino acids fertiliser containing magnesium according to claim 1, it is characterised in that also include,
1-2 parts of bentonite
3-4 parts of phosphorus ammonium.
4. a kind of preparation method of the chelating amino acids fertiliser containing magnesium any one of claim 1-3, comprises the following steps：
1) soluble magnesium salt, amino acid, carboxymethyl cellulose, urea, pectin and water are mixed, or by soluble magnesium salt, amino
Acid, carboxymethyl cellulose, urea, pectin, bentonite, phosphorus ammonium and water mixing, obtain mixed liquor；
2) chelatropic reaction is carried out to the mixed liquor；
3) to the step 2) processing after mixed liquor be aged and dried successively, obtain chelating amino acids fertiliser containing magnesium.
5. preparation method according to claim 4, 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 magnesium salt is (18-25)：1.
6. the preparation method according to claim 4 or 5, it is characterised in that step 2) in, the temperature of the chelatropic reaction is
75-85 DEG C, the time is that 8-9h, pH are 6-7.
7. the preparation method according to claim any one of 4-6, it is characterised in that step 3) in, the temperature of the ageing
It is 15-20h for 50-60 DEG C, time；
The temperature of the drying is 100-130 DEG C.
8. the preparation method according to claim any one of 4-7, it is characterised in that step 3) in, before the drying, also
Including to after the ageing gained mixture concentrate the step of.
9. the preparation method according to claim any one of 4-8, it is characterised in that step 1) in, the soluble magnesium salt
For at least one of magnesium sulfate, magnesium chloride and magnesium nitrate.
10. the preparation method according to claim any one of 4-9, 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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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115745696A (en) * | 2022-12-23 | 2023-03-07 | 德赢(武汉)生物科技有限公司 | Gel magnesium fertilizer and preparation method thereof |
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| CN115745696A (en) * | 2022-12-23 | 2023-03-07 | 德赢(武汉)生物科技有限公司 | Gel magnesium fertilizer and preparation method thereof |
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