CN102701870A - Modified glutamic acid fertilizer synergist and production method and application thereof - Google Patents
Modified glutamic acid fertilizer synergist and production method and application thereof Download PDFInfo
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Abstract
The invention relates to a modified glutamic acid fertilizer synergist and a production method and an application thereof. The method comprises the following steps of: preparing a glutamic acid solution from sodium glutamate or glutamic acid; and adding trace elements including boron, zinc and manganese necessary for plants for producing the modified glutamic acid fertilizer synergist. Due to the adoption of the modified glutamic acid fertilizer synergist disclosed by the invention, the growth of crops is facilitated, root activity is increased, the absorbing capabilities of crops on phosphorus, potassium and medium and trace elements are increased, the crop yield and quality are improved remarkably, the fertilizer utilization ratio is increased, the ammonia volatilization loss is reduced, secondary pollution is avoided, and trace elements in soil can be replenished.
Description
[technical field]
The present invention relates to the chemical fertilizer potentiating technical field.More specifically, the present invention relates to a kind of modification L-glutamic acid fertilizer synergist, also relate to the working method of said modification L-glutamic acid fertilizer synergist, also relate to the purposes of said modification L-glutamic acid fertilizer synergist.
[background technology]
The chemical fertilizer utilization ratio of China is generally lower; The nitrogenous fertilizer average utilization is about 30%; Phosphate fertilizer this season utilization ratio is about 25%, and potassium utilization rate is about 50%, and the fertilizer scientific worker has carried out big quantity research to the methods that improve utilization rate of fertilizer; Obtain certain effect, but still had problems such as production technique for fertilizer is complicated, cost is high, use is inconvenient, be difficult on field crop, apply.In recent years, how under the condition of low cost input, the fertilizer industry of China to be carried out technology upgrading and be transformed into the research focus.In the past few decades, China is to fertilizer, and particularly the research of nitrogen fertilizer potentiating agent is more.These researchs focus mostly on the research of chemicals such as urease inhibitor and nitrification inhibitor and using, and are less for crude substance and the research of modified natural material on fertilizer synergist.
L-glutamic acid is the highest amino acid of plant materials intensive amount, and simultaneously, L-glutamic acid is multiple amino acids synthetic precursor in the plant materials, in the growth and development of plant process, plays crucial effects.L-glutamic acid can form Stimulina in plant materials, store nitrogen and can eliminate the toxic action that produces because of the ammonia excessive concentration.The carboxyl that contains in the L-glutamic acid, amino can promote the crop root growth to a certain extent, improve the root system vigor; Improve nitrogen in the intravital storage form of plant; Improve quality of agricultural product and output.
The present invention utilizes Sodium Glutamate or L-glutamic acid to prepare glutamic acid solution, and adds the plant essential trace element that generally lacks in China's soil, production modification L-glutamic acid fertilizer synergist.The inventor has carried out a large amount of experimental study work on the basis of summing up prior art, accomplished the present invention finally.
[summary of the invention]
[technical problem that will solve]
The purpose of this invention is to provide a kind of modification L-glutamic acid fertilizer synergist.
Another object of the present invention provides the preparation method of said modification L-glutamic acid fertilizer synergist.
Another object of the present invention provides the purposes of said modification L-glutamic acid fertilizer synergist.
[technical scheme]
The present invention realizes through following technical proposals.
The present invention relates to a kind of working method of modification L-glutamic acid fertilizer synergist.
The step of this working method is following:
A, compound concentration are 10-30% monosodium glutamate solution by weight, 65 ~ 70 ℃ of temperature down heating obtain a kind of monosodium glutamate solution I.
The Sodium Glutamate that the present invention uses is a kind of sodium salt of Amino acid L-glutamic acid, is the scentless crystal of a kind of no color, is product sold in the market.
Preferably, described Sodium Glutamate purity is by weight more than 95%.
A preferred embodiment of the invention, described monosodium glutamate solution heating 30-60 minute.
B, the monosodium glutamate solution I that obtains with steps A are mother liquor, are 5 ~ 50gH according to every liter of mother liquor
3BO
3In said mother liquor, add H with 10 ~ 30g EDTA
3BO
3And EDTA, fully obtain solution II after the dissolving.
Preferably, every liter of monosodium glutamate solution I mother liquor adds 12 ~ 40g H
3BO
3With 15 ~ 25g EDTA.
More preferably, every liter of monosodium glutamate solution I mother liquor adds 24 ~ 36g H
3BO
3With 18 ~ 22gEDTA.
The H that the present invention uses
3BO
3With EDTA all be product sold in the market.
C, be 5 ~ 15g ZnSO according to every liter of solution II
47H
2O and 5 ~ 15g MnSO
47H
2O adds ZnSO in said solution II
47H
2O and MnSO
47H
2O obtains a kind of modification L-glutamic acid fertilizer synergist behind the mixing.
Preferably, every liter of solution II is added 6 ~ 14g ZnSO
47H
2O and 6～14g MnSO
47H
2O.
More preferably, every liter of solution II is added 8 ~ 12g ZnSO
47H
2O and 8 ~ 12g MnSO
47H
2O.
The invention still further relates to a kind of working method of modification L-glutamic acid fertilizer synergist.
The step of this working method is following:
A, with concentration for 5-15% inorganic alkali solution and L-glutamic acid by weight according to weight ratio 1.8 ~ 7.6: 1 is mixed, then 65 ~ 70 ℃ of temperature down heating obtain the glutaminate solution I.
Described mineral alkali is selected from sodium hydroxide, Pottasium Hydroxide, yellow soda ash, salt of wormwood, sodium hydrogencarbonate or saleratus.
Preferably, described mineral alkali is selected from sodium hydroxide, Pottasium Hydroxide, sodium hydrogencarbonate or saleratus.
The weight ratio of said inorganic alkali solution and said L-glutamic acid preferably 2.2 ~ 7.0: 1.
More preferably, the weight ratio of said inorganic alkali solution and said L-glutamic acid is 2.8 ~ 6.0: 1.
A preferred embodiment of the invention, said inorganic alkali solution and L-glutamic acid mixture heating up 30-60 minute.
B, the glutaminate solution I that obtains with steps A are mother liquor, are 5 ~ 50gH according to every liter of mother liquor
3BO
3In said mother liquor, add H with 10 ~ 30g EDTA
3BO
3And EDTA, fully obtain solution II after the dissolving.
Preferably, every liter of glutaminate solution I mother liquor adds 12 ~ 40g H
3BO
3With 15 ~ 25g EDTA.
More preferably, every liter of glutaminate solution I mother liquor adds 24 ~ 36g H
3BO
3With 18 ~ 22gEDTA.
The H that the present invention uses
3BO
3With EDTA all be product sold in the market.
C, be 5 ~ 15g ZnSO according to every liter of solution II
47H
2O and 5 ~ 15g MnSO
47H
2O adds ZnSO in said solution II
47H
2O and MnSO
47H
2O obtains a kind of modification L-glutamic acid fertilizer synergist behind the mixing.
Preferably, every liter of solution II is added 6 ~ 14g ZnSO
47H
2O and 6～14g MnSO
47H
2O.
More preferably, every liter of solution II is added 8 ~ 12g ZnSO
47H
2O and 8 ~ 12g MnSO
47H
2O.
According to another kind of preferred implementation of the present invention, according in the regional soil, micro-needs, in step B or step C, add in the said mother liquor calcic, magnesium, iron or copper in, trace element fertilizer.
In these, trace element fertilizer also all is product sold in the market.
The invention still further relates to the modification L-glutamic acid fertilizer synergist that adopts aforesaid method to obtain.
The invention still further relates to the purposes of said modification L-glutamic acid fertilizer synergist; Its as fertilizer sources synergistic agent is applied to urea, carbon ammonium, monoammonium phosphate, diammonium phosphate, Repone K, vitriolate of tartar, compound is fertile and middle Medium Trace Element Fertilizer, and its addition is that the said fertilizer of per 1000 weight parts is 5 ~ 100 kilograms of said synergistic agent.Its addition means is not have hell and high water for the technician in present technique field.
[beneficial effect]
The present invention is that L-glutamic acid is the highest amino acid of plant materials intensive amount, and simultaneously, L-glutamic acid is multiple amino acids synthetic precursor in the plant materials, in the growth and development of plant process, plays crucial effects.L-glutamic acid can form Stimulina in plant materials, store nitrogen and can eliminate the toxic action that produces because of the ammonia excessive concentration.The carboxyl that contains in the L-glutamic acid, amino can promote the crop root growth to a certain extent, improve the root system vigor, compare with the routine contrast, and the root system vigor that modification L-glutamic acid fertilizer synergist of the present invention can significantly improve the corn in seedling stage reaches more than 28%; Enhancing crop is to phosphorus, potassium and middle trace elements absorbed; Improve nitrogen in the intravital storage form of plant; Improve quality of agricultural product and output, compare, uses the urea of L-glutamic acid synergistic agent of the present invention can significantly increase the grain number per spike and the 100-grain weight of corn, increase by 14.6% and 5.1% respectively, output increase by 21.0% with common urea.Thereby; This synergistic agent product is through the promoter action of L-glutamic acid synergy liquid to plant growth; Improve nitrogen in the intravital storage form of crop plant; Reduce the harm of ammonia to crop, compare with common urea, the ammonia loss by volatilization amount that L-glutamic acid synergistic urea of the present invention can significantly reduce nitrogen reaches more than 52%.Synergistic agent product of the present invention promotes the absorption of crop to soil nutrient, obviously improves plant recovery of nutrient, and can replenish the trace element of soil.
[description of drawings]
Accompanying drawing 1 expression modification L-glutamic acid fertilizer synergist Production Flow Chart synoptic diagram of the present invention.
1-Sodium Glutamate (L-glutamic acid), 2-water (sodium hydroxide or potassium hydroxide solution), 3-heating steps, 4-glutamic acid solution, 5-zinc sulfate and manganous sulfate, 6-boric acid and EDTA, 7-modification L-glutamic acid fertilizer synergist.
[embodiment]
Can understand the present invention better through following embodiment and test example.
The modification L-glutamic acid fertilizer synergist of the present invention Production Flow Chart of representing referring to accompanying drawing 1 particularly.
Embodiment 1: the preparation of modification L-glutamic acid fertilizer synergist of the present invention
The implementation step of this embodiment is following:
A, compound concentration are 25% monosodium glutamate solution by weight, 70 ℃ of heating 45 minutes down, obtain described monosodium glutamate solution I;
B, the monosodium glutamate solution I that obtains with steps A are mother liquor, are 20g H according to every liter of mother liquor
3BO
3In said mother liquor, add H with 20g EDTA
3BO
3And EDTA, fully obtain solution II after the dissolving.
C, be 10g ZnSO according to every liter of solution II
47H
2O and 10g MnSO
47H
2O adds ZnSO in said solution II
47H
2O and MnSO
47H
2O obtains described modification L-glutamic acid fertilizer synergist behind the mixing.
Embodiment 2: the preparation of modification L-glutamic acid fertilizer synergist of the present invention
The implementation step of this embodiment is following:
A, compound concentration are 15% monosodium glutamate solution by weight, 65 ℃ of heating 60 minutes down, obtain described monosodium glutamate solution I;
B, the glutamic acid solution I that obtains with steps A are mother liquor, are 40g H according to every liter of mother liquor
3BO
3And 10g EDTA adds H in said mother liquor
3BO
3And EDTA, fully obtain solution II after the dissolving;
C, be 5g ZnSO according to every liter of solution II
47H
2O and 5g MnSO
47H
2O adds ZnSO in said solution II
47H
2O and MnSO
47H
2O obtains modification L-glutamic acid fertilizer synergist behind the mixing.
Embodiment 3: the preparation of modification L-glutamic acid fertilizer synergist of the present invention
The implementation step of this embodiment is following:
A, compound concentration are 10% monosodium glutamate solution by weight, 68 ℃ of heating 30 minutes down, obtain described monosodium glutamate solution I;
B, the monosodium glutamate solution I that obtains with steps A are mother liquor, are 5g H according to every liter of mother liquor
3BO
3In said mother liquor, add H with 30g EDTA
3BO
3And EDTA, fully obtain solution II after the dissolving.
C, be 15g ZnSO according to every liter of solution II
47H
2O and 15g MnSO
47H
2O adds ZnSO in said solution II
47H
2O and MnSO
47H
2O obtains described modification L-glutamic acid fertilizer synergist behind the mixing.
Embodiment 4: the preparation of modification L-glutamic acid fertilizer synergist of the present invention
The implementation step of this embodiment is following:
A, compound concentration are 30% monosodium glutamate solution by weight, 70 ℃ of heating 60 minutes down, obtain described monosodium glutamate solution I;
B, the glutamic acid solution I that obtains with steps A are mother liquor, are 50g H according to every liter of mother liquor
3BO
3And 20g EDTA adds H in said mother liquor
3BO
3And EDTA, fully obtain solution II after the dissolving;
C, be 12g ZnSO according to every liter of solution II
47H
2O and 12g MnSO
47H
2O adds ZnSO in said solution II
47H
2O and MnSO
47H
2O obtains modification L-glutamic acid fertilizer synergist behind the mixing.
Embodiment 5: the preparation of modification L-glutamic acid fertilizer synergist of the present invention
The implementation step of this embodiment is following:
A, compound concentration are 12% sodium hydroxide solution by weight, with the mixed of L-glutamic acid by weight 2.3: 1,68 ℃ of heating 50 minutes down, obtain monosodium glutamate solution I then;
B, the glutamic acid solution I that obtains with steps A are mother liquor, are 35g H according to every liter of mother liquor
3BO
3And 20g EDTA adds H in said mother liquor
3BO
3And EDTA, fully obtain solution II after the dissolving;
C, be 10g ZnSO according to every liter of solution II
47H
2O and 10g MgSO
4In said solution II, add ZnSO
47H
2O and MnSO
47H
2O obtains a kind of modification L-glutamic acid fertilizer synergist behind the mixing.
Embodiment 6: the preparation of modification L-glutamic acid fertilizer synergist of the present invention
The implementation step of this embodiment is following:
A, be that 10% potassium hydroxide solution and L-glutamic acid 70 ℃ of heating 30 minutes down, obtain the Potassium glutamate solution I then by weight 4.8: 1 mixed by weight with concentration;
B, the glutamic acid solution I that obtains with steps A are mother liquor, are 20g H according to every liter of mother liquor
3BO
3And 30g EDTA adds H in said mother liquor
3BO
3And EDTA,, fully obtain solution II after the dissolving;
C, be 15g CuSO according to every liter of solution II
45H
2O and 15g MnSO
4H
2O adds ZnSO in said solution II
47H
2O and MnSO
47H
2O obtains a kind of modification L-glutamic acid fertilizer synergist behind the mixing.
Embodiment 7: the preparation of modification L-glutamic acid fertilizer synergist of the present invention
The implementation step of this embodiment is following:
A, to use concentration be 5% potassium hydroxide solution and the mixed of L-glutamic acid by weight 7.6: 1 by weight, heated 40 minutes at 70 ℃ times then, obtains the Potassium glutamate solution I;
B, the glutamic acid solution I that obtains with steps A are mother liquor, are 50g H according to every liter of mother liquor
3BO
3And 10g EDTA adds H in said mother liquor
3BO
3And EDTA, fully obtain solution II after the dissolving;
C, be 15g ZnSO according to every liter of solution II
4H
2O and 15g FeSO
47H
2O adds ZnSO in said solution II
47H
2O and MnSO
47H
2O obtains a kind of modification L-glutamic acid fertilizer synergist behind the mixing.
Embodiment 8: the preparation of modification L-glutamic acid fertilizer synergist of the present invention
The implementation step of this embodiment is following:
A, to use concentration be 15% potassium hydroxide solution and the mixed of L-glutamic acid by weight 1.8: 1 by weight, heated 60 minutes at 65 ℃ times then, obtains the Potassium glutamate solution I;
B, the glutamic acid solution I that obtains with steps A are mother liquor, are 5g H according to every liter of mother liquor
3BO
3And 30g EDTA adds H in said mother liquor
3BO
3And EDTA, fully obtain solution II after the dissolving;
C, be 5g ZnSO according to every liter of solution II
4H
2O and 5g FeSO
47H
2O adds ZnSO in said solution II
47H
2O and MnSO
47H
2O obtains a kind of modification L-glutamic acid fertilizer synergist behind the mixing.
[fertilizer test]
Test example 1: modification L-glutamic acid fertilizer synergist of the present invention is to the influence of maize root system vigor in seedling stage
Utilize of the influence of sand culture test research modification L-glutamic acid fertilizer synergist to corn root system in seedling stage vigor.Conventional contrast (CK) and 4 processing of modification L-glutamic acid fertilizer synergist of the present invention (G-1, G-2, G-3) are established in test, and G-1, G-2, G-3 are respectively the modification L-glutamic acid fertilizer synergists of embodiment 1,2,5 preparations, repeat 6 times.At first silica sand is cleaned with clear water, put into the stainless steel pallet, keep certain humidity, corn kernel is put into dish, cover on it, under the condition of 25 ℃ of temperature, grow seedlings with wet cloth.When corn sprouts when growing to 3-5cm, corn is taken out put into the cultivation cup that fills with silica sand, water concentration every day and be 0.2% modification L-glutamic acid fertilizer synergist 25mL, CK waters 25mL water.When corn grows to the 20cm left and right sides, take out root system, clean with clear water; Adopt TTC method (reference: Zhang Xiong; Measure the vigor and the application [J] thereof of wheat root and pollen, Plant Physiology Communications, the 3rd phase of nineteen eighty-two with " TTC " method (TCC)) the root system vigor of mensuration corn.
Its test-results is listed in the table below in 1.
Table 1: maize root system vigor (mg/gh, TTC method)
| Handle | The root system vigor |
| CK | 1.127 |
| G-1 | 1.512 |
| G-2 | 1.476 |
| G-3 | 1.448 |
Above-mentioned test-results shows, compares with the routine contrast, and modification L-glutamic acid fertilizer synergist of the present invention can significantly improve the root system vigor of corn in seedling stage, and G-1, G-2, G-3 compare respectively according to exceeding 34.2%, 31.0% and 28.5%.
Test example 2: the L-glutamic acid synergistic urea is to the influence of corn yield and yield component
3 processing of L-glutamic acid urea (GU) that test is established CK (not applying fertilizer), common urea (U) and utilized L-glutamic acid fertilizer synergist of the present invention to produce; Executing nitrogen level is that every post is executed purity nitrogen 1g (by the 30cm topsoil, being equivalent to 0.053gN/kg soil), totally 3 processing; Repeat random alignment 8 times.Leaving and taking earth pillar upper strata 30cm is the clay fertilizer mixolimnion, supplies examination fertilizer to apply superphosphate of lime (P as base manure
2O
516%) every post is executed 12.50g, Repone K (K
2O 60%) every post executes 3.33g, disposable applying when the dress post.Each corn earth pillar is all sowed 5 corn seeds, after waiting to emerge, and best one of field planting growing way, spacing in the rows is 40cm, line-spacing is 80cm.
Table 2: corn yield and constituent element
| Handle | Output (g/ strain) | Grain number per spike | 100-grain weight (g) |
| CK | 26.22 | 143 | 18.34 |
| U | 46.32 | 246 | 18.83 |
| GU | 56.07 | 282 | 19.79 |
Above-mentioned test-results: compare with common urea, the L-glutamic acid synergistic urea can significantly increase the grain number per spike and the 100-grain weight of corn, increases by 14.6% and 5.1% respectively, and output increases by 21.0%.This shows that under the identical situation of nitrogen consumption, compare with the common urea processing, L-glutamic acid synergistic urea of the present invention can significantly increase maize grain yield.
Test example 3: L-glutamic acid urea is to the influence of ammonia volatilization
Reference literature (people such as Ling Li, " Study on Ammonia Volatilization from Calcareous Soil ", " soil erosion and soil conservation journal ", 1999,5 (6): 119 ~ 122), adopt " static absorption process " to measure the volatile quantity of ammonia.
Concrete operations are following:
Take by weighing soil 500g (in dry ground), take by weighing L-glutamic acid synergistic urea of the present invention according to 0.84gN/kg soil again, clay fertilizer is mixed through the screening of 1mm mesh screen; Put into the plastic tank that specification is 15cm * 8.5cm * 17.5cm; Regulating its water-content is 60% of maxmun field capacity, seals with the plastic closures film, puts into the cuvette that 10ml 2% boric acid is housed in the bucket; With methyl red-tetrabromo-mcresolsulfonphthalein mixture indicator as indicator; If 2 processing are respectively common urea (U) and L-glutamic acid urea (GU), repeat 6 times.Place intelligent growth cabinet, cultured continuously under 25 ℃ of conditions when the 1st, 3,5,7,9,14,21 and 35 day of cultivating, is taken out absorption cell in the bucket, uses 0.02mol/L1/2H
2SO
4Standard solution titration (reference: Liu Zengbing, Zhao Bingqiang, woods public security. humic acid urea ammonia volatilization characteristic and Study on influencing factors [J]. plant nutrition and fertilizer journal, 2010 the 1st phases), the pure nitrogen level that converts and volatilized at every turn according to the following equation:
m=c×(V-V
0)×0.014
In the formula:
M-boric acid absorbs the amount of ammonia-state nitrogen, g;
C-sulfuric acid (1/2H
2SO
4) concentration of standardized solution, mol/L;
The volume of the sulfuric acid standardized solution that V-sample drop regularly consumes, mL;
V
0The volume of the sulfuric acid standardized solution that consumes during-blank titration, mL;
0.014 the mmole quality of-nitrogen, g.
Obtain that the results are shown in Table 1.
Table 3: ammonia volatilization semi-invariant (under 25 ℃ of conditions) dynamic change (mg/pot)
| Cultivate |
1 | 3 | 5 | 7 | 9 | 14 | 21 | 35 |
| U | 0.24 | 3.44 | 9.66 | 13.04 | 15.13 | 17.52 | 19.91 | 21.06 |
| GU | 0.14 | 2.09 | 4.14 | 5.66 | 6.27 | 7.85 | 8.91 | 10.02 |
Above-mentioned test-results shows: compare with common urea, L-glutamic acid synergistic urea of the present invention can significantly reduce the ammonia loss by volatilization amount of nitrogen.In each time period that soil is cultivated, the ammonia volatilization semi-invariant of L-glutamic acid synergistic urea all significantly is lower than common urea to be handled, and when being cultured to 35 days, the ammonia volatilization semi-invariant reduces by 52.4%.
This shows that modification L-glutamic acid liquid fertilizer material synergistic agent of the present invention has can promote the crop root growth, improve the root system vigor, can significantly increase crop yield, reduces ammonia loss by volatilization, improves characteristics such as utilization rate of fertilizer, environmental friendliness, additional soil trace element.Its manufacturing technology technology is simple, raw material sources are wide, easy handling, cost are low etc.
Claims (10)
1. the working method of a modification L-glutamic acid fertilizer synergist is characterized in that the step of this method is following:
A, compound concentration are 10-30% monosodium glutamate solution by weight, 65 ~ 70 ℃ of temperature down heating obtain a kind of monosodium glutamate solution I;
B, the monosodium glutamate solution I that obtains with steps A are mother liquor, are 5 ~ 50gH according to every liter of mother liquor
3BO
3In said mother liquor, add H with 10 ~ 30g EDTA
3BO
3And EDTA, fully obtain solution II after the dissolving;
C, be 5 ~ 15g ZnSO according to every liter of solution II
47H
2O and 5 ~ 15g MnSO
47H
2O adds ZnSO in said solution II
47H
2O and MnSO
47H
2O obtains a kind of modification L-glutamic acid fertilizer synergist behind the mixing.
2. method according to claim 1 is characterized in that described monosodium glutamate solution heating 30-60 minute.
3. method according to claim 1 is characterized in that described Sodium Glutamate purity is by weight more than 95%.
4. the working method of a modification L-glutamic acid fertilizer synergist is characterized in that the step of this method is following:
A, with concentration for 5-15% inorganic alkali solution and L-glutamic acid by weight according to weight ratio 1.8 ~ 7.6: 1 is mixed, then 65 ~ 70 ℃ of temperature down heating obtain the glutaminate solution I;
B, the glutaminate solution I that obtains with steps A are mother liquor, are 5 ~ 50gH according to every liter of mother liquor
3BO
3In said mother liquor, add H with 10 ~ 30g EDTA
3BO
3And EDTA, fully obtain solution II after the dissolving;
C, be 5 ~ 15g ZnSO according to every liter of solution II
47H
2O and 5 ~ 15g MnSO
47H
2O adds ZnSO in said solution II
47H
2O and MnSO
47H
2O obtains a kind of modification L-glutamic acid fertilizer synergist behind the mixing.
5. method according to claim 4 is characterized in that described mineral alkali is selected from sodium hydroxide, Pottasium Hydroxide, yellow soda ash, salt of wormwood, sodium hydrogencarbonate or saleratus.
6. method according to claim 4 is characterized in that described mineral alkali is selected from sodium hydroxide, Pottasium Hydroxide, sodium hydrogencarbonate or saleratus.
7. method according to claim 4 is characterized in that said inorganic alkali solution and L-glutamic acid mixture heating up 30-60 minute.
8. according to claim 1 or 4 described methods, it is characterized in that according to regional soil trace element needs, in step B or step C, add in the said mother liquor calcic, magnesium, iron or copper in, trace element fertilizer.
9. the modification L-glutamic acid fertilizer synergist that obtains according to the said method of arbitrary claim among the claim 1-8.
10. according to the purposes of the said modification L-glutamic acid of claim 9 fertilizer synergist; It is characterized in that its as fertilizer sources synergistic agent is applied to urea, carbon ammonium, monoammonium phosphate, diammonium phosphate, Repone K, vitriolate of tartar, compound is fertile and contain middle Medium Trace Element Fertilizer, its addition is that the said fertilizer of per 1000 weight parts is 5 ~ 100 kilograms of said synergistic agent.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103274856A (en) * | 2013-06-17 | 2013-09-04 | 中国农业科学院农业资源与农业区划研究所 | Glutamic acid synergistic ammonium phosphate fertilizer and preparation method thereof |
| CN103274853A (en) * | 2013-06-17 | 2013-09-04 | 中国农业科学院农业资源与农业区划研究所 | Glutamic acid synergistic ammonium bicarbonate fertilizer and production method thereof |
| CN103274855A (en) * | 2013-06-17 | 2013-09-04 | 中国农业科学院农业资源与农业区划研究所 | Glutamic acid synergistic high-tower compound fertilizer and production method thereof |
| CN103626591A (en) * | 2013-12-11 | 2014-03-12 | 石文杰 | Water-retaining and soil-moisture-retaining fertilizer |
| WO2018081303A1 (en) * | 2016-10-25 | 2018-05-03 | Waterscience, Inc. | Method and composition for retaining nutrients in soil at planting sites |
| CN111875443A (en) * | 2020-08-12 | 2020-11-03 | 陈贝 | Biochar compound fertilizer and preparation method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103274856A (en) * | 2013-06-17 | 2013-09-04 | 中国农业科学院农业资源与农业区划研究所 | Glutamic acid synergistic ammonium phosphate fertilizer and preparation method thereof |
| CN103274853A (en) * | 2013-06-17 | 2013-09-04 | 中国农业科学院农业资源与农业区划研究所 | Glutamic acid synergistic ammonium bicarbonate fertilizer and production method thereof |
| CN103274855A (en) * | 2013-06-17 | 2013-09-04 | 中国农业科学院农业资源与农业区划研究所 | Glutamic acid synergistic high-tower compound fertilizer and production method thereof |
| CN103626591A (en) * | 2013-12-11 | 2014-03-12 | 石文杰 | Water-retaining and soil-moisture-retaining fertilizer |
| WO2018081303A1 (en) * | 2016-10-25 | 2018-05-03 | Waterscience, Inc. | Method and composition for retaining nutrients in soil at planting sites |
| CN111875443A (en) * | 2020-08-12 | 2020-11-03 | 陈贝 | Biochar compound fertilizer and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| CN102701870B (en) | 2013-10-16 |
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