CN107602230A - A kind of chitosan oligosaccharide chelated middle trace element water-soluble fertilizer of alginic acid and preparation method thereof - Google Patents
A kind of chitosan oligosaccharide chelated middle trace element water-soluble fertilizer of alginic acid and preparation method thereof Download PDFInfo
- Publication number
- CN107602230A CN107602230A CN201710895642.6A CN201710895642A CN107602230A CN 107602230 A CN107602230 A CN 107602230A CN 201710895642 A CN201710895642 A CN 201710895642A CN 107602230 A CN107602230 A CN 107602230A
- Authority
- CN
- China
- Prior art keywords
- parts
- alginic acid
- chitosan oligosaccharide
- soluble fertilizer
- trace element
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Fertilizers (AREA)
Abstract
The present invention relates to chitosan oligosaccharide chelated middle trace element water-soluble fertilizer of a kind of alginic acid and preparation method thereof, Water soluble fertilizer includes the composition of following parts by weight：Molecular weight is not higher than 8 parts of the chitosan oligosaccharide 2.4 part of 1500 dalton not higher than 20 parts of alginic acid 6.5 part, the molecular weight of 1500 dalton, 1 part 10 parts of trace element, 10 parts of PH conditioning agents 1 part, its manufacture method include pre-preparation, it is miscible, five steps such as chelate, isolate and purify, being concentrated and dried.The chitosan oligosaccharide chelated middle trace element water-soluble fertilizer of alginic acid of the present invention can arbitrarily charity in blade surface and plant root, water miscible, easily absorbing, degradable, pH value in neutral.
Description
Technical field
The present invention relates to agricultural fertilizer field, more particularly to a kind of chitosan oligosaccharide chelated middle trace element water-soluble fertilizer of alginic acid and
Its preparation method.
Background technology
Dissolve or dilute through water, for fertigation, foliage dressing, soilless culture, the seed soaking purposes such as root dipping liquid or
Solid fertilizer, referred to as water-soluble fertilizer.General soluble all kinds of plant nutrients and plant growth regulator are used as water
Molten fertilizer.Wherein trace element includes the elements such as calcium, sulphur, magnesium, boron, iron, manganese, zinc, molybdenum, copper, chlorine, three kinds of sulphur removal, boron, chlorine elements
Beyond nonmetalloid, remaining seven kinds of element is metallic element, these metallic elements be very easy to by phosphate radical in environment,
Carbanion settles loss, wherein the most prominent with calcium, magnesium elements.Trace element benefit is provided by fertilizer product of chelate
It is a kind of more stable mode to fill, and the common middle minor metallic element chelating agent of domestic and international fertilizer manufacture field includes：Second two
Amine tetraacethyl (EDTA), diethyl pentetic acid (DTPA), the adjacent sodium (EDDHA-Na) of ethylenediamine two, amino acid,
Sugar alcohol etc..But there has been no the patent and report that water soluble fertilizer is prepared using special ratios alginic acid and chitosan oligosaccharide chelated trace element
Road.
Alginic acid is using brown alga as raw material, is hydrolyzed through chemical method or compound enzyme system, then through a kind of obtained from isolating and purifying
Natural activity extract containing alginic acid and abundant plant growth substance, wherein alginic acid molecule after specific process decomposes
Amount is water-soluble good between 400-1500.Chitosan oligosaccharide is using chitosan as raw material, through chemical method or enzymatic hydrolysis, then through dividing
From the oligosaccharide kind active material of small molecule low polymerization degree obtained from purifying.Alginic acid and chitosan oligosaccharide have good life to crop
Thing stimulin acts on, and can produce chelating with trace element.Compared to tradition chelating agent, more bioaffinity, chelation percent
Height, the enhancing of product fertilizer efficiency., can be more through alginic acid and chitosan oligosaccharide chelated trace element after plant root or blade is applied to
Fast cover plant absorbs and utilized, while should not more cause compared to conventional nutrient fertilizer soil eutrophication or excessively inorganization cause
It is hardened, pollution.But at present and have no that this area has using correlation technique, actually unfortunately.
Therefore, in the market needs a kind of chitosan oligosaccharide chelated middle trace element water-soluble fertilizer of alginic acid and its method.
The content of the invention
For solve prior art present in drawbacks described above, the present invention is intended to provide one kind can arbitrarily charity in blade surface
With plant root, the chitosan oligosaccharide chelated middle micro- water of alginic acid water miscible, easily absorbing, degradable, pH value is neutral
Molten fertilizer and preparation method thereof.
In order to realize foregoing invention purpose, the present invention uses following technical scheme：A kind of alginic acid and chitosan oligosaccharide chelated micro-
The Water soluble fertilizer of secondary element, include the composition of following parts by weight：Molecular weight not higher than 1500 dalton 6.5 parts -20 parts of alginic acid,
Molecular weight is not higher than 2.4 parts -8 parts of the chitosan oligosaccharide of 1500 dalton, 1 part -10 parts of trace element, 1 part -10 parts of PH conditioning agents.
In a kind of above-mentioned alginic acid and chitosan oligosaccharide chelated micro- Water soluble fertilizer, the weight of the alginic acid and chitosan oligosaccharide
It is 2-4 to measure ratio：1.
In a kind of above-mentioned alginic acid and chitosan oligosaccharide chelated micro- Water soluble fertilizer, the trace element is specially one kind
Or plurality of inorganic salt, the Inorganic Salts include but is not limited to calcium nitrate, magnesium nitrate, copper sulphate, ferrous sulfate, sodium molybdate,
Zinc sulfate.
In a kind of above-mentioned alginic acid and chitosan oligosaccharide chelated micro- Water soluble fertilizer, the species tool of the PH conditioning agents
Body is the one or more in trimethylglycine, potassium hydroxide, ammoniacal liquor, sodium hydroxide.
A kind of method for manufacturing above-mentioned alginic acid and chitosan oligosaccharide chelated micro- Water soluble fertilizer, including following step are gathered：
1）Pre-preparation
1. 6.5 parts -20 parts of the alginic acid, the molecular weight that prepare molecular weight by weight not higher than 1500 dalton are not higher than 1500
2.4 parts -8 parts of the chitosan oligosaccharide that you pause, 1 part -10 parts of trace element, 1 part -10 parts of PH conditioning agents；
2. prepare Enough Dl water；
3. prepare baking oven, agitating device, PH test paper and glass or rustless steel container；
2）It is miscible
1. by 1）1. step prepares alginic acid, chitosan oligosaccharide raw material mixes with trace element, with 60 parts -97.9 parts of parts by weight go from
Sub- water dissolving, is made the aqueous solution, miscible step is completed after at the uniform velocity stirring；
3）Chelating
1. the aqueous solution dissolved with alginic acid, chitosan oligosaccharide and trace element is heated to 65 DEG C -85 DEG C, and the stirring that remains a constant speed；
2. PH conditioning agents regulation solution pH value is added in the solution of step 1., it is stable in 6. 5-8. 5, keeping temperature to pH value
65 DEG C -85 DEG C, continue the stirring that remains a constant speed, react 80min-120min, that is, complete chelatropic reaction；
4）Isolate and purify
1. cooling the temperature to room temperature after the completion of chelatropic reaction, the water-insoluble being then filtered to remove in raw material, that is, it is pure to complete separation
Change step；
5）It is concentrated and dried
1. it is completely out to moisture content the aqueous solution after isolating and purifying is concentrated and dried, powder is then comminuted into, that is, is obtained required
Alginic acid and chitosan oligosaccharide chelated trace element water-soluble fertilizer.
In the above method, the stage 2）, the stage 3）Described in the speed that at the uniform velocity stirs be 60r/min-120r/min.
Compared with prior art, by adopting the above-described technical solution, the present invention has advantages below：（1）Food,
On the basis of feed, field of medicaments are to chitosan oligosaccharide and alginic acid research, first with reference to water soluble fertilizer characteristic by special ratios
Alginic acid and the chitosan oligosaccharide trace element that is used to chelate needed for plant prepare water soluble fertilizer, with reference to the natural plants of both
The characteristics of stimulin, the product will have great market prospects.（2）The it is proposed of the present invention complies fully with ecological, environmental protective agricultural
It is required that the alginic acid of acquisition and chitosan oligosaccharide chelated trace element water-soluble fertilizer can be significantly reduced in agricultural production calcium, magnesium,
The sedimentation and loss of the trace element such as iron, manganese, zinc, molybdenum, copper in the environment, substantially increase the comprehensive utilization ratio of resource, symbol
The requirement of energy-conservation agricultural is closed, the dosage of fertilizer is significantly reduced, there is great economic benefit and social benefit.（3）The present invention
In used alginic acid and chitosan oligosaccharide belong to natural nuisance-free bioactive oligosaccharide, plant centering trace meter can be obviously improved
The absorption efficiency of element, while itself as the regulation plant absorption metabolism of natural plants stimulin.
Embodiment
Embodiment 1
Weigh the chitosan oligosaccharide 15 that molecular weight is not higher than 1500 dalton not higher than 30 grams of alginic acid, the molecular weight of 1500 dalton
Gram, it is dissolved in 275.8 grams of deionized waters, weighs 62 grams of zinc sulfate, 100 grams of ferrous sulfate heptahydrate, 12 grams of copper sulphate and add sea
Alginic acid and chitosan oligosaccharide solution, 80r/min is kept at the uniform velocity to stir to dissolving, it is 10% that copper, iron and Zn-ef ficiency gross mass percentage, which is made,
The aqueous solution.4.25 grams of trimethylglycines are added in above-mentioned solution and adjust solution PH to 7.0, in a water bath by above-mentioned solution
Thermostatic keeps 80r/min at the uniform velocity to stir lower reaction 100min to 85 DEG C.React and above-mentioned solution is cooled to room after terminating
Temperature, insoluble impurity is filtered, alginic acid and chitosan oligosaccharide that micro- total amount (copper, iron, zinc mass percent sum) is 10% is made
Chelated microelement liquid water soluble fertilizer；Alginic acid and chitosan oligosaccharide chelated micro- water is made after concentrated, dry, crushing
The solid product of soluble fertilizers.
Embodiment 2
Weigh the chitosan oligosaccharide 15 that molecular weight is not higher than 1500 dalton not higher than 45 grams of alginic acid, the molecular weight of 1500 dalton
Gram, it is dissolved in 375 grams of deionized waters, weighs 60 grams of four water-calcium nitrate and add alginic acid and chitosan oligosaccharide solution, keep 60r/min
The aqueous solution that calcium constituent mass percent is 10% (in terms of calcium oxide) is made to dissolving at the uniform velocity stirring.Add in above-mentioned solution
Enter 5 grams of ammoniacal liquor and adjust solution PH to 6.5, in a water bath by above-mentioned solution temperature constant temperature to 65 DEG C, keep 60r/min at the uniform velocity to stir
Lower reaction 120min.React and above-mentioned solution is cooled to room temperature after terminating, filter insoluble impurity, calcium constituent total amount is made ((with oxygen
Change calcium meter) it is 3% (30g/L) alginic acid and chitosan oligosaccharide chelated moderate-element liquid water soluble fertilizer；Concentrated, dry, powder
The solid product of alginic acid and chitosan oligosaccharide chelated trace element water-soluble fertilizer is made after broken.
Embodiment 3
Weigh the chitosan oligosaccharide 28 that molecular weight is not higher than 1500 dalton not higher than 72 grams of alginic acid, the molecular weight of 1500 dalton
Gram, it is dissolved in 220 grams of deionized waters, weighs 40 grams of four water-calcium nitrate, 28 grams of magnesium nitrate hexahydrate, 100 grams of zinc chloride and add
Solution is stated, keeps 120r/min at the uniform velocity to stir to dissolving, micro- mass percent is made as 13% (with calcium, magnesium, Zn-ef ficiency
Meter) the aqueous solution.6 grams of potassium hydroxide are added in above-mentioned solution and adjust solution PH to 8.0, in a water bath by above-mentioned solution temperature
Constant temperature keeps 120r/min at the uniform velocity to stir lower reaction 80min to 70 DEG C.React and above-mentioned solution is cooled to room temperature, mistake after terminating
Insoluble impurity is filtered, micro- mass percent is made as the alginic acid of 13% (in terms of calcium, magnesium, Zn-ef ficiency) and chitosan oligosaccharide chelated
Moderate-element liquid water soluble fertilizer；Alginic acid and chitosan oligosaccharide chelated trace element water-soluble is made after concentrated, dry, crushing
The solid product of fertilizer.
Contrast test
Applicant chelates micro member using above-mentioned three kinds of embodiments as destination object, with effective component content with the EDTA of gross mass
Plain water soluble fertilizer is positive control, and the clear water of homogenous quantities is carried out contrast test for negative control, promoted with seedling growth of corn
Experiment on Function is contrast test carrier.
Experimental method is as follows：
The 1st, control index is set：For trying the average plant height of corn, mean fresh is control reference index;
2nd, the setting of each experimental group：Choose long Potential to be unanimously averaged plant height 5cm or so the basin of potted plant corn 150, according to every five plants of basin
Every component of 30 basin one is five groups, and being designated as water soluble fertilizer treatment group of the present invention respectively, (embodiment 1 is A1 groups, embodiment 2 is A2
Group, embodiment 3 are A3 groups), with content EDTA chelates treatment group (B groups), clear water control group (C groups);
3rd, mensuration mode and result：By water soluble fertilizer manufactured in the present embodiment dilution, 500 times uniformly impose on A groups（Including A1,
A2、A3）Corn seedling is water-soluble with the EDTA chelated microelements of gross mass by same effective component content to blade uniform wet
Fertilizer dilutes 500 times and uniformly sprayed in B groups to blade uniform wet, and the clear water of homogenous quantities is uniformly sprayed in C groups to blade
Uniform wet.After A1 groups, A2 groups, A3 groups, B groups, C groups are moved into illumination box culture 7 days, measure is for the average strain of examination wheat
High, mean fresh, experimental result are as described in Table 1：
Table 1 is the correction data of each group
Table 1
| A1 groups | A2 groups | A3 groups | B groups | C groups | |
| Mean fresh (g) | 208 | 211 | 206 | 179 | 138 |
| Average plant height (cm) | 19.8 | 20.1 | 19.6 | 16.5 | 14.6 |
Experimental result is summarized：It is significantly higher than with alginic acid and chitosan oligosaccharide chelated its fertilizer efficiency of trace element water-soluble fertilizer and is routinized
Chelated microelement fertilizer is learned, it is another on the one hand because the trace element of bioactive oligosaccharide chelating is easier to be absorbed by crops
Aspect, which is alginic acid and chitosan oligosaccharide itself as plant growth substance, can also promote the growth of crop.
The foregoing description of the disclosed embodiments, only for enabling professional and technical personnel in the field to realize or using this hair
It is bright.A variety of modifications to these embodiments will be apparent for those skilled in the art, determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, originally
Invention is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein and features of novelty
Consistent most wide scope.
Claims (6)
1. a kind of alginic acid and chitosan oligosaccharide chelated micro- Water soluble fertilizer, it is characterised in that：The Water soluble fertilizer includes following heavy
Measure the composition of part：Molecular weight is not higher than 1500 dalton not higher than 6.5 parts -20 parts of alginic acid, the molecular weight of 1500 dalton
2.4 parts -8 parts of chitosan oligosaccharide, 1 part -10 parts of trace element, 1 part -10 parts of PH conditioning agents.
2. a kind of alginic acid according to claim 1 and chitosan oligosaccharide chelated micro- Water soluble fertilizer, it is characterised in that：Institute
The weight ratio for stating alginic acid and chitosan oligosaccharide is 2-4：1.
3. alginic acid according to claim 2 and chitosan oligosaccharide chelated micro- Water soluble fertilizer, it is characterised in that：It is described micro-
Secondary element is specially one or more inorganic salts, the Inorganic Salts include but is not limited to calcium nitrate, magnesium nitrate, copper sulphate,
Ferrous sulfate, sodium molybdate, zinc sulfate.
4. alginic acid according to claim 2 and chitosan oligosaccharide chelated micro- Water soluble fertilizer, it is characterised in that：It is described
The species of PH conditioning agents is specially the one or more in trimethylglycine, potassium hydroxide, ammoniacal liquor, sodium hydroxide.
5. a kind of method for preparing alginic acid described in claim 1 and chitosan oligosaccharide chelated micro- Water soluble fertilizer, its feature exist
Gather in including following step：
1）Pre-preparation
1. 6.5 parts -20 parts of the alginic acid, the molecular weight that prepare molecular weight by weight not higher than 1500 dalton are not higher than 1500
2.4 parts -8 parts of the chitosan oligosaccharide that you pause, 1 part -10 parts of trace element, 1 part -10 parts of PH conditioning agents；
2. prepare Enough Dl water；
3. prepare baking oven, agitating device, PH test paper and glass or rustless steel container；
2）It is miscible
1. by 1）1. step prepares alginic acid, chitosan oligosaccharide raw material mixes with trace element, with 60 parts -97.9 parts of parts by weight go from
Sub- water dissolving, is made the aqueous solution, miscible step is completed after at the uniform velocity stirring；
3）Chelating
1. the aqueous solution dissolved with alginic acid, chitosan oligosaccharide and trace element is heated to 65 DEG C -85 DEG C, and the stirring that remains a constant speed；
2. PH conditioning agents regulation solution pH value is added in the solution of step 1., it is stable in 6. 5-8. 5, keeping temperature to pH value
65 DEG C -85 DEG C, continue the stirring that remains a constant speed, react 80min-120min, that is, complete chelatropic reaction；
4）Isolate and purify
1. cooling the temperature to room temperature after the completion of chelatropic reaction, the water-insoluble being then filtered to remove in raw material, that is, it is pure to complete separation
Change step；
5）It is concentrated and dried
1. it is completely out to moisture content the aqueous solution after isolating and purifying is concentrated and dried, powder is then comminuted into, that is, is obtained required
Alginic acid and chitosan oligosaccharide chelated trace element water-soluble fertilizer.
6. according to the method for claim 5, it is characterised in that：Stage 2）, the stage 3）Described in the speed that at the uniform velocity stirs it is equal
For 60r/min-120r/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710895642.6A CN107602230A (en) | 2017-09-28 | 2017-09-28 | A kind of chitosan oligosaccharide chelated middle trace element water-soluble fertilizer of alginic acid and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710895642.6A CN107602230A (en) | 2017-09-28 | 2017-09-28 | A kind of chitosan oligosaccharide chelated middle trace element water-soluble fertilizer of alginic acid and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107602230A true CN107602230A (en) | 2018-01-19 |
Family
ID=61059228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710895642.6A Pending CN107602230A (en) | 2017-09-28 | 2017-09-28 | A kind of chitosan oligosaccharide chelated middle trace element water-soluble fertilizer of alginic acid and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107602230A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108558496A (en) * | 2018-03-14 | 2018-09-21 | 湖北丰乐生态肥业有限公司 | A kind of foliar fertilizer and preparation method thereof |
| CN108892556A (en) * | 2018-08-15 | 2018-11-27 | 湖北茂盛生物有限公司 | Trace element water-soluble fertilizer and preparation method thereof in a kind of chelating type |
| CN112552116A (en) * | 2020-12-25 | 2021-03-26 | 长春吉农大农业科技有限公司 | Rice dry farming lodging-resistant fertilizer and preparation method thereof |
| CN113135803A (en) * | 2021-06-08 | 2021-07-20 | 深圳市绿色农业生物科技有限公司 | Disease-preventing insect-preventing environment-friendly microbial water-soluble fertilizer |
| CN113651649A (en) * | 2021-09-17 | 2021-11-16 | 青岛科光生物技术有限公司 | Fertilizer with stress-resistant and disease-resistant functions and preparation method thereof |
| CN114105705A (en) * | 2021-12-23 | 2022-03-01 | 北京局气网络技术有限公司 | Composite oligosaccharide trace element fertilizer for tobacco planting and preparation method thereof |
| CN114940636A (en) * | 2022-06-27 | 2022-08-26 | 北京君德同创生物技术股份有限公司 | Liquid water-soluble fertilizer and preparation method and application thereof |
| CN115745685A (en) * | 2022-10-31 | 2023-03-07 | 合肥工业大学 | Wheat seed soaking liquid containing trace elements in alginic acid and preparation method and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101092315A (en) * | 2007-07-06 | 2007-12-26 | 颜红 | Composite biological agent of crusta oligosaccharide and alga fertilizer, and preparation method |
| CN104177195A (en) * | 2014-09-11 | 2014-12-03 | 标优美生态工程股份有限公司 | Special fertilizer for foliage spraying type flowers and preparation method thereof |
| CN105237243A (en) * | 2015-11-19 | 2016-01-13 | 金正大生态工程集团股份有限公司 | Water-soluble plant growth nutrient solution and preparation method |
| CN105272597A (en) * | 2015-10-21 | 2016-01-27 | 山西年马肥业有限公司 | Liquid organic fertilizer and preparation method |
-
2017
- 2017-09-28 CN CN201710895642.6A patent/CN107602230A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101092315A (en) * | 2007-07-06 | 2007-12-26 | 颜红 | Composite biological agent of crusta oligosaccharide and alga fertilizer, and preparation method |
| CN104177195A (en) * | 2014-09-11 | 2014-12-03 | 标优美生态工程股份有限公司 | Special fertilizer for foliage spraying type flowers and preparation method thereof |
| CN105272597A (en) * | 2015-10-21 | 2016-01-27 | 山西年马肥业有限公司 | Liquid organic fertilizer and preparation method |
| CN105237243A (en) * | 2015-11-19 | 2016-01-13 | 金正大生态工程集团股份有限公司 | Water-soluble plant growth nutrient solution and preparation method |
Non-Patent Citations (1)
| Title |
|---|
| 许加超主编: "《海藻化学与工艺学》", 30 September 2014, 中国海洋大学出版社 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108558496A (en) * | 2018-03-14 | 2018-09-21 | 湖北丰乐生态肥业有限公司 | A kind of foliar fertilizer and preparation method thereof |
| CN108892556A (en) * | 2018-08-15 | 2018-11-27 | 湖北茂盛生物有限公司 | Trace element water-soluble fertilizer and preparation method thereof in a kind of chelating type |
| CN112552116A (en) * | 2020-12-25 | 2021-03-26 | 长春吉农大农业科技有限公司 | Rice dry farming lodging-resistant fertilizer and preparation method thereof |
| CN113135803A (en) * | 2021-06-08 | 2021-07-20 | 深圳市绿色农业生物科技有限公司 | Disease-preventing insect-preventing environment-friendly microbial water-soluble fertilizer |
| CN113651649A (en) * | 2021-09-17 | 2021-11-16 | 青岛科光生物技术有限公司 | Fertilizer with stress-resistant and disease-resistant functions and preparation method thereof |
| CN114105705A (en) * | 2021-12-23 | 2022-03-01 | 北京局气网络技术有限公司 | Composite oligosaccharide trace element fertilizer for tobacco planting and preparation method thereof |
| CN114940636A (en) * | 2022-06-27 | 2022-08-26 | 北京君德同创生物技术股份有限公司 | Liquid water-soluble fertilizer and preparation method and application thereof |
| CN115745685A (en) * | 2022-10-31 | 2023-03-07 | 合肥工业大学 | Wheat seed soaking liquid containing trace elements in alginic acid and preparation method and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107602230A (en) | A kind of chitosan oligosaccharide chelated middle trace element water-soluble fertilizer of alginic acid and preparation method thereof | |
| CN103881726B (en) | Residual dedicated liquid soil improvement agent and preparation method thereof falls in alkaline land improving volume increase insect protected | |
| CN107162831A (en) | Trace element water-soluble composite fertilizer and preparation method thereof in a kind of fulvic acid | |
| CN103708964B (en) | Instant chelated solid water-soluble fertilizer | |
| CN107353142A (en) | One plant nutrient liquor and preparation method thereof | |
| CN104109052B (en) | A kind of high-activity humic acid trace-element fertilizer and preparation method thereof | |
| CN104557298A (en) | Special sustained-release water-soluble fertilizer for potatoes and preparation method of fertilizer | |
| CN104591901A (en) | Application of imino disuccinate as fertilizer synergist | |
| CN108558546A (en) | A kind of paddy rice-dedicated fertilizer and preparation method thereof with improvement soil alkaline effect | |
| CN107445780A (en) | It is a kind of containing alginic acid and middle micro- compound fertilizer and preparation method thereof | |
| CN104086313A (en) | Inorganic-organic nutritional soil improver and preparation method thereof | |
| CN104671991A (en) | Special slow-released water-soluble fertilizer for american ginseng and preparation method thereof | |
| CN108947633A (en) | A kind of growth-promoting root liquid fertilizer and the preparation method and application thereof | |
| CN102875235A (en) | Coated synergistic nitrogen fertilizer composition and preparation method thereof | |
| CN104609950B (en) | Organic chelated potassium fulvate siliceous fertilizer and its production technology | |
| CN102260117B (en) | High-efficiency compound foliar fertilizer | |
| CN106977282A (en) | A kind of insect pest a great number of elements water-soluble fertilizer | |
| CN108658677A (en) | A kind of preparation method of amino acid calcium and magnesium suspension liquid Water soluble fertilizer | |
| CN107129368A (en) | A kind of fertilizer synergist and preparation method and application | |
| CN105237178B (en) | A kind of ecotype aquatic products Algae culture solution | |
| CN105016848A (en) | Chlorine-based gamma-biological compound fertilizer and preparation method thereof | |
| CN107698334A (en) | A kind of novel solid nutrient solution Water soluble fertilizer of full nutritive element and preparation method thereof | |
| CN104892395B (en) | Preparation method of ammonia manganese citrate | |
| CN107793219A (en) | A kind of organic trace element Water soluble fertilizer and preparation method thereof | |
| CN110229033A (en) | The high concentration fruits and vegetables mill water culture nutrient solution of zinc salt containing single amino acid, manganese salt chelate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180119 |
|
| RJ01 | Rejection of invention patent application after publication |