CN104003803A - Environment-friendly efficient water-soluble fertilizer slow/controlled-release material - Google Patents
Environment-friendly efficient water-soluble fertilizer slow/controlled-release material Download PDFInfo
- Publication number
- CN104003803A CN104003803A CN201410237172.0A CN201410237172A CN104003803A CN 104003803 A CN104003803 A CN 104003803A CN 201410237172 A CN201410237172 A CN 201410237172A CN 104003803 A CN104003803 A CN 104003803A
- Authority
- CN
- China
- Prior art keywords
- thermoplastic
- controlled
- release material
- soluble fertilizer
- parts
- 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
Abstract
The invention provides an environment-friendly efficient water-soluble fertilizer slow/controlled-release material. The water-soluble fertilizer slow/controlled-release material is prepared from the following components in parts by mass: 1-99 parts of thermoplastic gulcomannan, 1-99 parts of thermoplastic fiber, 0-10 parts of crosslinking agent, 0-10 parts of plasticizer and 2-5 parts of foaming agent, wherein the total mass part of thermoplastic gulcomannan and thermoplastic fiber is 100. A slow/controlled-release fertilizer prepared on the basis of the slow/controlled-release material provided by the invention has the initial nutrient release rate of less than 13.3% after being soaked in 25-DEG C static water for 24h, the accumulated nutrient release rate of less than 82.0% within 28d and the accumulated release rate of more than 91.5% within the nutrient release period. The effective utilization ratio of nutrients in the fertilizer is increased by more than 37.1%, so that the usage amount and fertilization times of the fertilizer can be greatly reduced, the effective utilization rate of the fertilizer can be increased, and the ecological environment destruction caused by the fertilizer can be effectively relieved.
Description
Technical field
The invention belongs to technical field of fertilizers, be specifically related to a kind of environmentally friendly efficient water soluble fertilizer controlled release material.
Background technology
Using of chemical fertilizer, produces and makes a great contribution for world food.Since 20th century, world Fertilizer turnout and consumption keep sustainable growth always.According to Food and Argriculture OrganizationFAO (FAO) statistical information, the sixties in 20th century, in the Yield-increasing Factors of boosting agricultural yield, application fertilizer accounted for 40%-60% to the nineties, and this has alleviated the resource pressure that world population blast brings undoubtedly.But chemical fertilizer is introduced as allogenic material, make agroecosystem that respective change occur, these variations mainly comprise the following aspects:
First, the yield-increasing efficiency of chemical fertilizer declines.Because nitrogen is easily by volatilization, leaching, denitrification loss; Phosphate fertilizer is easy to by the A1 in soil
3+, Fe
3+and Ca
2+, Mg
2+fixing, form stable precipitation or form to close with iron, aluminum oxide and hold state phosphorus and progressively lose validity, cause this season utilization ratio of chemical fertilizer application very low.Utilizing different technological methods to improve utilization rate of fertilizer is to study how to stop or to reduce the core in leaching loss of nutrient problem, and sustained-controll-release fertiliser is the important means that solves this key problem.The selection of slow controlled-release material is the key of release and release control fertilizer development.At present, the slow controlled-release material of having applied and just having studied both at home and abroad can be divided into slow-release material, coating material and solid support material 3 classes.
(1) slow-release material: mostly be macromolecular compound, the effect according to it in slow release fertilizer be divided into 3 classes them so long: 1. retarding agent, the fat that hydrophobicity is strong, wax family macromolecule material.Fertilizer is suspendible or miscible cooling in this class melting material, by fat-soluble material, is wrapped up.2. framework material, this macromolecular material has space in larger molecule, and as sodium alginate, poly(lactic acid) etc., take this macromolecular material as carrier, can be made into the fertile system of carrying.3. tackifier, are class water-soluble high-molecular materials, as polyoxyethylene glycol etc., control the release of nutrient by reducing nutrient diffusion.
(2) coating material: by sources can be divided into 3 classes: 1. natural macromolecular material, there is the multiple fundamental characteristics of capsule material requirement, nontoxic, stable, good film-forming property, cheap and easy to get, as gum arabic, gelatin, sodium alginate etc.2. semi-synthetic macromolecular material, take cellulosic derivative as main, and viscosity is large, film-forming properties is good, facile hydrolysis, as sodium cellulose glycolate, ethyl cellulose etc.3. synthesized polymer material, chemical stability is high, film forming properties is good, and particularly Biodegradable material more receives publicity as capsule material.
(3) solid support material, by sources can be divided into: 1. natural carrier material, and as gelatin, chitose, starch etc.2. synthesize polymer carrier, as polymeric amide, poly(lactic acid) etc.The research of release and release control fertilizer is to improve the benefit of fertilizer, and reduces the threat of chemical fertilizer to environment.
But the slow controlled-release effect of existing slow controlled-release material is bad at present, environment is had to pollution, and price is higher.
Summary of the invention
In order to overcome problems of the prior art, the invention provides a kind of environmentally friendly efficient water soluble fertilizer controlled release material.
The invention provides a kind of environmentally friendly efficient water soluble fertilizer controlled release material, the slow controlled-release material of described water soluble fertilizer is prepared from by the component of following mass fraction: 1～99 part of thermoplastic glucomannan, 1～99 part of thermoplastic fibre, 0～10 part of linking agent, 0～10 part, softening agent, 2～5 parts of whipping agents, wherein, totally 100 parts of thermoplastic glucomannan and thermoplastic fibres.
As preferably; the preparation method of described thermoplastic glucomannan is: konjac glucomanna is swollen in 50% the aqueous ethanolic solution of pH10,50 ℃ of temperature controls carry out deacetylation processing, filters, washing is to neutral; after dry; swell in water, 50 ℃ of temperature controls, add Potassium Persulphate, methyl acrylate again; carry out graft copolymerization; filter and clean, be dried 1, obtain thermoplastic glucomannan.
As preferably, the preparation method of described thermoplastic fibre is: plant fiber material is pulverized, and expanded, add 1%H
2s0
4the aqueous solution is processed, and obtains removing the pure plant fiber powder of lignin and pentosan; In pure plant fiber powder, add the 18%NaOH aqueous solution, dipping, squeezing is squeezed and is removed unnecessary alkali lye, makes containing alkali lye, to be controlled at 50% in vegetable fibre, obtains alkalization vegetable fibre; Alkalization vegetable fibre, Potassium Persulphate, methyl acrylate are put into reactor, pass into rare gas element simultaneously and react, be neutralized to pH7.0 to the aqueous acetic acid that adds 10% after material is pulpous state; Reaction solution is removed to solution by centrifugation, and gained solid is drying to obtain thermoplastic fibre through being washed to neutral final vacuum.
As preferably, described linking agent is MALEIC ANHYDRIDE, the arbitrary combination of one or more in tributyl citrate, ethylene bis stearic acid amide, hexagonal boron nitride.
As preferably, described softening agent is glycerol, polyoxyethylene glycol, dibutyl phthalate, the arbitrary combination of one or more in adipic acid dibutylester.
As preferably, described whipping agent is selected the one or more kinds of arbitrary combination in pneumatogen and/or chemical foaming agent.
Further, described pneumatogen is sodium carbonate, sodium bicarbonate, C0
2, described chemical foaming agent is Cellmic C 121, Diisopropyl azodicarboxylate.
Second object of the present invention is to provide the preparation method of above-mentioned environmentally friendly efficient water soluble fertilizer controlled release material, and step is as follows:
The first step, prepare thermoplastic glucomannan and thermoplastic fibre:
Konjac glucomanna is swollen in 50% the aqueous ethanolic solution of pH10,50 ℃ of temperature controls carry out deacetylation processing, filter, wash to neutral, after being dried, then swell in water, 50 ℃ of temperature controls, add Potassium Persulphate, methyl acrylate, carry out graft copolymerization, filter and clean, be dried 1, obtain thermoplastic glucomannan;
Plant fiber material is pulverized, expanded, add 1%H
2s0
4the aqueous solution is processed, and obtains removing the pure plant fiber powder of lignin and pentosan; In pure plant fiber powder, add the 18%NaOH aqueous solution, dipping, squeezing is squeezed and is removed unnecessary alkali lye, makes containing alkali lye, to be controlled at 50% in vegetable fibre, obtains alkalization vegetable fibre; Alkalization vegetable fibre, Potassium Persulphate, methyl acrylate are put into reactor, pass into rare gas element simultaneously and react, be neutralized to pH7.0 to the aqueous acetic acid that adds 10% after material is pulpous state; Reaction solution is removed to solution by centrifugation, and gained solid is drying to obtain thermoplastic fibre through being washed to neutral final vacuum;
Second step, batching: get by weight ratio 1～99 part of thermoplastic glucomannan, 1～99 part of thermoplastic fibre, 0～10 part of linking agent, 0～10 part, softening agent, 2～5 parts of whipping agents, stirring and evenly mixing 20～30 min in high-speed mixer;
The 3rd step, dry: the blend mixing is dried to 8～12 hours 30～60 ℃ of temperature;
The 4th step, melt blending preparation: by dried blend composition in twin screw extruder in 120～160 ℃ of melt blending 10～20min, extruding pelletization, coarse crushing under 110～150 ℃, 0.1～1MPa, prepare the slow controlled release novel material of the efficient liquid manure of eco-friendly konjac glucomanna/fiber base.
The present invention be take reproducible natural macromolecular material-konjac glucomanna as raw material, the slow controlled release novel material of the efficient liquid manure of konjac glucomanna/fiber base that coordinates thermoplastic fibre, graft modification thing, linking agent, softening agent and whipping agent etc. to make is a kind of slow controlled release novel material of the efficient liquid manure such as slowly-releasing, packing and carrier good " environmental protection " that has.After konjac glucomanna and thermoplastic fibre graft modification, between molecule, be complicated tridimensional network, and there is certain degree of crosslinking.On its crosslinked reticulated structure, there are the hydrophilic radicals such as many carboxyls, hydroxyl, when it contacts with water, the hydrophilic radical ionization of its molecular surface also becomes hydrogen bond with water molecules, the a large amount of moisture of sticking in this way, on the basis of sustained-controll-release fertiliser nutrient, moisture is also had to preferably slow control-release function, improve water and fertilizer utilization simultaneously.A series of excellent properties that konjac glucomanna has as biological degradation, graft copolymerization, vitrifying film forming, water-absorbing-retaining, adsorption sustained-release, soil improvement etc., are reproduced and are superposeed in the slow controlled release novel material of the efficient liquid manure of konjac glucomanna/fiber base.The slow controlled release novel material of the efficient liquid manure of konjac glucomanna/fiber base has advantages of dissimilar slow controlled-release material, can meet service requirements physical strength, there is the common function of slowly-releasing, packing, solid support material, can be degradable under physical environment (light, heat, microorganism etc.) condition.The good slow controlled release characteristics that the slow controlled release novel material of the efficient liquid manure of konjac glucomanna/fiber base has, has broad application prospects at aspects such as medical science, pharmacy, chemical fertilizer, agricultural chemicals, environmental improvements.
By the slow controlled release novel material of the efficient liquid manure of konjac glucomanna/fiber base, again with compound blend or granulations such as the fertilizer of different ratios, water and fertilizer coupling agent, water medicine couplant, fertile medicine couplants, can obtain the efficient control of Novel series endoplasm molecule parcel release controlled fertilizer, in its principle, be different from Envelope type and stability of molecule control release controlled fertilizer, its production cost is low, and technique is simple.Through test, the efficient control of Novel series endoplasm molecule parcel release controlled fertilizer total nutrient is higher than concentration in 33.1%() and 41.8%(high density), the single nutrient content of ternary or binary slow release fertilizer is not less than 6.6%.In 25 ℃ of hydrostatic, soak 24 hour initial stage nutrient release rate and be less than 13.3%, 28 day accumulation nutrient release rate and be less than 82.0%, in fertilizer releasing period, preparation is greater than 91.5%.Fertilizer nutrient effective rate of utilization improves more than 37.1%, can significantly reduce usage quantity and the fertilizer application frequency of chemical fertilizer, improves chemical fertilizer effective rate of utilization, the destruction that can effectively alleviate Chemical Fertilizer on Environment.Owing to there being the water-absorbing-retaining of the hydrophilic radicals such as many carboxyls, hydroxyl on the crosslinked reticulated structure of glucose-mannitose polysaccharid, can improve efficiency of water application more than 42.8% simultaneously.Technico-economical comparison is better than slow release fertilizer standard GB/T-T23348-2009.
Raw material sources of the present invention are extensive, cheap, and preparation method is simple, are suitable for promoting the use of.
Embodiment
Following embodiment is convenient to understand better the present invention, but does not limit the present invention.Experimental technique in following embodiment, if no special instructions, is ordinary method.Except specified otherwise, " % " be representation quality percentage ratio all.
embodiment 1
(1) prepare thermoplastic glucomannan: by weight ratio 100 parts of konjac glucomannas are swollen in 500 parts of 50% the aqueous ethanolic solutions of pH10,50 ℃ of temperature controls carry out deacetylation to be processed 10 hours, filter, wash to neutral, at 50 ℃, be dried 12 hours, then swell in 500 parts of water, 50 ℃ of temperature controls, add 5 parts of Potassium Persulphates, 50 parts of methyl acrylates, graft copolymerization 4 hours, filters and cleans, at 50 ℃, be dried 12 hours, obtain thermoplastic glucomannan;
(2) prepare thermoplastic fibre: plant fiber material after impurity elimination is pulverized, expanded, add the 1%H of 2 times of vegetable fibre weight
2s0
4the aqueous solution is processed 1 hour at 120 ℃, filters, cleans, is dried, pulverized 40 mesh sieves, obtains removing the pure plant fiber powder of lignin and pentosan; The 18%NaOH aqueous solution that adds 3 times of quality in pure plant fiber powder floods 2h at 30 ℃, and squeezing is squeezed and removed unnecessary alkali lye, makes containing alkali lye, to be controlled at 50% in vegetable fibre, obtains alkalization vegetable fibre; Get by weight ratio 200 parts of alkalization 100 parts, vegetable fibre, 2 parts of Potassium Persulphates, methyl acrylates in reactor, pass into N simultaneously
2, stirring reaction is 10 hours at 30 ℃, is neutralized to pH7.0 to the aqueous acetic acid that adds 10% after material is pulpous state; Reaction solution is removed to solution by centrifugation, and gained solid is drying to obtain thermoplastic fibre through being washed to neutral final vacuum.
embodiment 2
The preparation method of environmentally friendly efficient water soluble fertilizer controlled release material of the present invention is as follows:
Get by weight 1 part of thermoplastic glucomannan, 99 parts of the thermoplastic fibres of embodiment 1 preparation, 10 parts of MALEIC ANHYDRIDE, 5 parts, 10 parts of glycerol and sodium carbonate stir 20 minutes in high-speed mixer, 30 ℃ of temperature, be dried 12 hours, temperature control in 160 ℃ by blend composition melt blending 10min in Bitruder, granulation under 110 ℃, 1MPa, coarse crushing, prepare environmentally friendly efficient water soluble fertilizer controlled release material of the present invention.
embodiment 3
The preparation method of environmentally friendly efficient water soluble fertilizer controlled release material of the present invention is as follows:
Get by weight 99 parts of thermoplastic glucomannans, 1 part of thermoplastic fibre, 2 parts, 2 parts of polyoxyethylene glycol and sodium carbonate stir 30 minutes in high-speed mixer, at temperature 60 C, be dried 8 hours, temperature control in 120 ℃ by blend composition melt blending 20min in Bitruder, granulation under 150 ℃, 0.1MPa, coarse crushing, prepare environmentally friendly efficient water soluble fertilizer controlled release material of the present invention.
embodiment 4
The preparation method of environmentally friendly efficient water soluble fertilizer controlled release material of the present invention is as follows:
Get by weight 10 parts of thermoplastic glucomannans, 90 parts of thermoplastic fibres, 3 parts of tributyl citrates, 5 parts of ethylene bis stearic acid amides, 4 parts of 6 parts of dibutyl phthalates and sodium bicarbonates stir 25 minutes in high-speed mixer, 40 ℃ of temperature, be dried 10 hours, temperature control is in 150 ℃ by melt blending material blend 20min in Bitruder, and granulation under 120 ℃, 0.7MPa, coarse crushing, prepare environmentally friendly efficient water soluble fertilizer controlled release material of the present invention.
embodiment 5
The preparation method of environmentally friendly efficient water soluble fertilizer controlled release material of the present invention is as follows:
Get by weight 30 parts of thermoplastic glucomannans, 70 parts of thermoplastic fibres, 5 parts of ethylene bis stearic acid amides, 8 parts of adipic acid dibutylesters, C0
21 part is stirred 30 minutes with 2 parts of Cellmic C 121s in high-speed mixer, at temperature 45 C, be dried 12 hours, temperature control in 140 ℃ by blend composition melt blending 15min in Bitruder, granulation under 130 ℃, 0.5MPa, coarse crushing, prepare environmentally friendly efficient water soluble fertilizer controlled release material of the present invention.
embodiment 6
The preparation method of environmentally friendly efficient water soluble fertilizer controlled release material of the present invention is as follows:
Get by weight 50 parts of thermoplastic glucomannans, 50 parts of thermoplastic fibres, 7 parts of hexagonal boron nitrides, 5 parts of glycerol, 5 parts of 5 parts of polyoxyethylene glycol and Diisopropyl azodicarboxylates stir 25 minutes in high-speed mixer, 35 ℃ of temperature, be dried 12 hours, temperature control is in 150 ℃ by blend composition melt blending 18min in Bitruder, and granulation under 140 ℃, 0.3MPa, coarse crushing, prepare environmentally friendly efficient water soluble fertilizer controlled release material of the present invention.
embodiment 7
The preparation method of environmentally friendly efficient water soluble fertilizer controlled release material of the present invention is as follows:
Get by weight 70 parts of thermoplastic glucomannans, 30 parts of thermoplastic fibres, 3 parts of tributyl citrates, 4 parts of ethylene bis stearic acid amides, 1 part of 3 parts, sodium carbonate and Diisopropyl azodicarboxylate stir 20 minutes in high-speed mixer, at temperature 50 C, be dried 8 hours, temperature control in 130 ℃ by blend composition melt blending 12min in Bitruder, granulation under 150 ℃, 0.2MPa, coarse crushing, prepare environmentally friendly efficient water soluble fertilizer controlled release material of the present invention.
embodiment 8
The preparation method of environmentally friendly efficient water soluble fertilizer controlled release material of the present invention is as follows:
Get by weight 65 parts of thermoplastic glucomannans, 35 parts of thermoplastic fibres, 1 part of MALEIC ANHYDRIDE, 3 parts of tributyl citrates, 4 parts of hexagonal boron nitrides, 2 parts of glycerol, 1 part of polyoxyethylene glycol, 2 parts of dibutyl phthalates, 1 part of 3 parts, sodium carbonate and Diisopropyl azodicarboxylate stir 20 minutes in high-speed mixer, at temperature 50 C, be dried 8 hours, temperature control in 130 ℃ by blend composition melt blending 12min in Bitruder, granulation under 150 ℃, 0.2MPa, coarse crushing, prepare environmentally friendly efficient water soluble fertilizer controlled release material of the present invention.
Finally it should be noted that: the foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, although the present invention is had been described in detail with reference to previous embodiment, for a person skilled in the art, its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (8)
1. an environmentally friendly efficient water soluble fertilizer controlled release material, it is characterized in that: the slow controlled-release material of described water soluble fertilizer is prepared from by the component of following mass fraction: 1～99 part of thermoplastic glucomannan, 1～99 part of thermoplastic fibre, 0～10 part of linking agent, 0～10 part, softening agent, 2～5 parts of whipping agents, wherein, totally 100 parts of thermoplastic glucomannan and thermoplastic fibres.
2. water soluble fertilizer according to claim 1 delays controlled-release material; it is characterized in that: the preparation method of described thermoplastic glucomannan is: konjac glucomanna is swollen in 50% the aqueous ethanolic solution of pH10,50 ℃ of temperature controls carry out deacetylation processing, filter, washing is to neutral; after dry; swell in water, 50 ℃ of temperature controls, add Potassium Persulphate, methyl acrylate again; carry out graft copolymerization; filter and clean, dry, obtain thermoplastic glucomannan.
3. water soluble fertilizer according to claim 1 delays controlled-release material, it is characterized in that: the preparation method of described thermoplastic fibre is: plant fiber material is pulverized, and expanded, add 1%H
2s0
4the aqueous solution is processed, and obtains removing the pure plant fiber powder of lignin and pentosan; In pure plant fiber powder, add the 18%NaOH aqueous solution, dipping, squeezing is squeezed and is removed unnecessary alkali lye, makes containing alkali lye, to be controlled at 50% in vegetable fibre, obtains alkalization vegetable fibre; Alkalization vegetable fibre, Potassium Persulphate, methyl acrylate are put into reactor, pass into rare gas element simultaneously and react, be neutralized to pH7.0 to the aqueous acetic acid that adds 10% after material is pulpous state; Reaction solution is removed to solution by centrifugation, and gained solid is drying to obtain thermoplastic fibre through being washed to neutral final vacuum.
4. the slow controlled-release material of water soluble fertilizer according to claim 1, is characterized in that: described linking agent is MALEIC ANHYDRIDE, the arbitrary combination of one or more in tributyl citrate, ethylene bis stearic acid amide, hexagonal boron nitride.
5. the slow controlled-release material of water soluble fertilizer according to claim 1, is characterized in that: described softening agent is glycerol polyoxyethylene glycol, dibutyl phthalate, the arbitrary combination of one or more in adipic acid dibutylester.
6. the slow controlled-release material of water soluble fertilizer according to claim 1, is characterized in that: described whipping agent is selected the one or more kinds of arbitrary combination in pneumatogen and/or chemical foaming agent.
7. the slow controlled-release material of water soluble fertilizer according to claim 6, is characterized in that: described pneumatogen is sodium carbonate, sodium bicarbonate, C0
2, described chemical foaming agent is Cellmic C 121, Diisopropyl azodicarboxylate.
8. the preparation method of the arbitrary described environmentally friendly efficient water soluble fertilizer controlled release material of claim 1-7, step is as follows:
The first step, prepare thermoplastic glucomannan and thermoplastic fibre:
Konjac glucomanna is swollen in 50% the aqueous ethanolic solution of pH10,50 ℃ of temperature controls carry out deacetylation processing, filter, wash to neutral, after being dried, then swell in water, 50 ℃ of temperature controls, add Potassium Persulphate, methyl acrylate, carry out graft copolymerization, filter and clean, dry, obtain thermoplastic glucomannan;
Plant fiber material is pulverized, expanded, add 1%H
2s0
4the aqueous solution is processed, and obtains removing the pure plant fiber powder of lignin and pentosan; In pure plant fiber powder, add the 18%NaOH aqueous solution, dipping, squeezing is squeezed and is removed unnecessary alkali lye, makes containing alkali lye, to be controlled at 50% in vegetable fibre, obtains alkalization vegetable fibre; Alkalization vegetable fibre, Potassium Persulphate, methyl acrylate are put into reactor, pass into rare gas element simultaneously and react, be neutralized to pH7.0 to the aqueous acetic acid that adds 10% after material is pulpous state; Reaction solution is removed to solution by centrifugation, and gained solid is drying to obtain thermoplastic fibre through being washed to neutral final vacuum;
Second step, batching: get by weight ratio 1～99 part of thermoplastic glucomannan, 1～99 part of thermoplastic fibre, 0～10 part of linking agent, 0～10 part, softening agent, 2～5 parts of whipping agents, stirring and evenly mixing 20～30 min in high-speed mixer;
The 3rd step, dry: the blend mixing is dried to 8～12 hours 30～60 ℃ of temperature;
The 4th step, melt blending preparation: by dried blend composition in twin screw extruder in 120～160 ℃ of melt blending 10～20min, under 110～150 ℃, 0.1～1MPa, extrude, granulation, coarse crushing, prepare the slow controlled-release material of water soluble fertilizer of the present invention.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410237172.0A CN104003803A (en) | 2014-05-30 | 2014-05-30 | Environment-friendly efficient water-soluble fertilizer slow/controlled-release material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410237172.0A CN104003803A (en) | 2014-05-30 | 2014-05-30 | Environment-friendly efficient water-soluble fertilizer slow/controlled-release material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104003803A true CN104003803A (en) | 2014-08-27 |
Family
ID=51364742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410237172.0A Pending CN104003803A (en) | 2014-05-30 | 2014-05-30 | Environment-friendly efficient water-soluble fertilizer slow/controlled-release material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104003803A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105777380A (en) * | 2016-04-12 | 2016-07-20 | 石鸿娟 | Compound nutrition medium for municipal engineering greening |
| CN106748260A (en) * | 2017-01-18 | 2017-05-31 | 成都市四友生物科技有限公司 | A kind of slow-release fertilizer and preparation method thereof, preparation system |
| CN107805161A (en) * | 2017-10-26 | 2018-03-16 | 唐翔 | A kind of Water soluble fertilizer and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1618467A (en) * | 2003-11-20 | 2005-05-25 | 罗学刚 | Lignin base controlled releasing material |
| CN101497732A (en) * | 2008-01-28 | 2009-08-05 | 西南科技大学 | Environment degrading thermalplastic glucomanan foam material and moulding process thereof |
| CN101824166A (en) * | 2009-03-06 | 2010-09-08 | 西南科技大学 | Thermoplastic glucomannan/plant fiber blending material and preparation method thereof |
| CN102701887A (en) * | 2012-06-08 | 2012-10-03 | 马桐 | Three-dimensional elastic solid mesh nest controlled-release fertilizer and preparation method thereof |
-
2014
- 2014-05-30 CN CN201410237172.0A patent/CN104003803A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1618467A (en) * | 2003-11-20 | 2005-05-25 | 罗学刚 | Lignin base controlled releasing material |
| CN101497732A (en) * | 2008-01-28 | 2009-08-05 | 西南科技大学 | Environment degrading thermalplastic glucomanan foam material and moulding process thereof |
| CN101824166A (en) * | 2009-03-06 | 2010-09-08 | 西南科技大学 | Thermoplastic glucomannan/plant fiber blending material and preparation method thereof |
| CN102701887A (en) * | 2012-06-08 | 2012-10-03 | 马桐 | Three-dimensional elastic solid mesh nest controlled-release fertilizer and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105777380A (en) * | 2016-04-12 | 2016-07-20 | 石鸿娟 | Compound nutrition medium for municipal engineering greening |
| CN106748260A (en) * | 2017-01-18 | 2017-05-31 | 成都市四友生物科技有限公司 | A kind of slow-release fertilizer and preparation method thereof, preparation system |
| CN107805161A (en) * | 2017-10-26 | 2018-03-16 | 唐翔 | A kind of Water soluble fertilizer and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Zhang et al. | An eco-friendly slow-release urea fertilizer based on waste mulberry branches for potential agriculture and horticulture applications | |
| CN101200393B (en) | Membrane material for producing coated material and preparation technique thereof | |
| Wang et al. | Preparation and properties of novel corn straw cellulose–based superabsorbent with water‐retaining and slow‐release functions | |
| CN110128801B (en) | Degradable lunch box | |
| Wang et al. | Water retention and fertilizer slow release integrated superabsorbent synthesized from millet straw and applied in agriculture | |
| CN100494220C (en) | Preparation method of all biodegradable material | |
| CN104448159B (en) | The preparation method of the High hydrophilous resin containing humic acid | |
| CN104003803A (en) | Environment-friendly efficient water-soluble fertilizer slow/controlled-release material | |
| Liu et al. | Eco-friendly superabsorbent composites based on calcined semicoke and polydimethylourea phosphate: Synthesis, swelling behavior, degradability and their impact on cabbage growth | |
| CN104194012A (en) | Preparation method of biodegradable coating material | |
| CN100494247C (en) | Preparation process of nanometer polyose polymer particle grafted polyester | |
| Ma et al. | Oxidized sodium alginate/polyacrylamide hydrogels adhesive for promoting wheat growth | |
| CN112250497B (en) | Lignin-based modified coating material and preparation method and application thereof | |
| CN104003800A (en) | Environment-friendly vegetable protein based efficient water and fertilizer slow/controlled-release material | |
| CN110105523B (en) | Polyurethane foam for fireproof insulation board based on biomass raw material and processing technology thereof | |
| CN114854814B (en) | Biosynthesis method of ferulic acid starch ester | |
| Majeed et al. | Lignin modified urea fertilizer's biodegradation and nitrogen release under reduced soil condition | |
| CN101824166A (en) | Thermoplastic glucomannan/plant fiber blending material and preparation method thereof | |
| CN101831158B (en) | Composite crosslinking amylomaize based fully degradable material and preparation method thereof | |
| CN111187627B (en) | Low-cost and environment-friendly sand fixing agent and preparation method thereof | |
| CN104003802A (en) | Environment-friendly glucomannan-based efficient water and fertilizer slow/controlled-release material | |
| Yang et al. | Preparation and properties of stover cellulose grafted poly (acrylic acid‐potassium humate) with water‐retention and slow‐release fertilizer | |
| CN104003801A (en) | Environment-friendly animal glue based efficient water and fertilizer slow/controlled-release material | |
| CN101225191B (en) | Tape casting method for preparing full biological degradable containing konjac glucomannan | |
| Zhang et al. | In situ forming of PEG-NH2/dialdehyde starch Schiff-base hydrogels and their application in slow-release urea |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 831100 Changji Hui Autonomous Prefecture, Changji Agricultural Park cattle circle lake hill, the 18 floor, the 1 floor Applicant after: Xinjiang wisdom agriculture group Limited by Share Ltd Address before: 831100 the Xinjiang Uygur Autonomous Region Changji Hui Autonomous Prefecture of Changji City Wuyi Road No. 333 Applicant before: Xinjiang Hui'er Agriculture Technology Co., Ltd. |
|
| COR | Change of bibliographic data | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140827 |