CN109851424A - A kind of moisture-retention sustained release fertilizer of growth-promoting and preparation method thereof of biomass synthesis - Google Patents
A kind of moisture-retention sustained release fertilizer of growth-promoting and preparation method thereof of biomass synthesis Download PDFInfo
- Publication number
- CN109851424A CN109851424A CN201910040937.4A CN201910040937A CN109851424A CN 109851424 A CN109851424 A CN 109851424A CN 201910040937 A CN201910040937 A CN 201910040937A CN 109851424 A CN109851424 A CN 109851424A
- Authority
- CN
- China
- Prior art keywords
- growth
- promoting
- moisture
- water
- biomass
- 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 invention discloses a kind of moisture-retention sustained release fertilizers of growth-promoting and preparation method thereof of biomass synthesis, the preparation method is that biomass and reaction monomers are obtained gelatinous water-holding slow-release carrier by graft copolymerization under the action of crosslinking agent and initiator, the growth-promoting water-retaining type slow-release fertilizer for then synthesizing plant growth regulator up to biomass of the present invention through mixing, extrusion granulation with the fertilizer material of different ratio after mixing with water-holding slow-release carrier.Slow-release fertilizer of the present invention has both growth-promoting, water conservation and nutrient slowly-released function, and has preferable biological degradability, in the soil can be degradable.In addition, the present invention takes full advantage of this discarded renewable resource of biomass, reduces the dependence to petroleum chemicals, simplify production technology, reduce production cost, be suitable for large-scale industrial production and the popularization and application on field crop.
Description
[technical field]
The invention belongs to agricultural fertilizer fields, and in particular to a kind of moisture-retention sustained release fertilizer of growth-promoting of biomass synthesis and its
Preparation method.
[background technique]
China is a large agricultural country, agricultural water natural resources shortage and to be unevenly distributed low with fertilizer nutrient utilization be development
The two large problems that Efficient Eco-agriculture faces.Water-retaining type slowly/controlled releasing fertilizer, which can synchronize, realizes that high crop yield stable yields and liquid manure are high
Effect benefit has become one of the hot spot of fertilizer industry development.Patent CN106977314A discloses a kind of agricultural crop straw water conservation
Water-retaining type slowly/controlled releasing fertilizer of agent coating and preparation method thereof, coating material can be degradable, and Water-saving effect is preferable, nutrient
It is strong to discharge controllability, but the water-retaining type release and release control fertilizer coating process of coating type is complex, higher cost, it is more difficult to industrialized production
And popularization.Patent CN108929386A discloses a kind of water-retaining type slow-release nitrogen fertilizer and preparation method thereof, takes full advantage of shrimp and crab shells
Deng the waste biomass material for being rich in chitin, production cost is more cheap, and product water-holding slow-release effect is preferable, but is applying
In the process there is still a need for other fertilizer compatibilities, and still need to repeatedly spray growth regulator in process of crop growth to control crop
Growing way is unfavorable for simplifying Agricultural management system.Therefore, there is an urgent need to one kind, to have both water conservation, nutrient slowly-released and growth-promoting etc. multi-functional
Low cost, degradable Water-retaining slow-release fertilizer.
[summary of the invention]
In view of the drawbacks of the prior art, the object of the present invention is to provide one kind to have both water conservation, growth-promoting and nutrient slowly-released function
Can low cost, degradable release-controlled fertilizer and preparation method thereof.
To achieve the goals above, the present invention adopts the following technical scheme:
The present invention provides a kind of moisture-retention sustained release fertilizers of growth-promoting of biomass synthesis, and the slow release fertilizer includes with the following group
Point: 10%~20% water-holding slow-release carrier, 0.01-0.5% plant growth regulator, surplus are fertilizer material.
Preferably, the water-holding slow-release carrier is by biomass, reaction monomers, initiator and crosslinking agent through graft polymerization reaction
Preparation, the mass ratio of each component are (30~50): 100:(0.2~0.4): (1.5~4.5).
Preferably, the biomass is agricultural crop straw, waste paper, leaf, reed, sawdust, bagasse, waste cotton wadding, biogas
The mixture of one or more of slag, kitchen waste (rice, steamed bun etc.), discarded starch, bark, the leaf of bamboo.
Preferably, the reaction monomers be acrylic acid that degree of neutralization is 65~85% or acrylamide it is one or two kinds of with
Any ratio mixing.
Preferably, the initiator is one or more of potassium peroxydisulfate, ammonium persulfate and persulfate arbitrarily to compare
Mixing.
Preferably, the crosslinking agent is N, one in N'- methylene-bisacrylamide, borax, boric acid and boracic organic matter
Kind is several with any ratio mixing.
Preferably, the plant growth regulator be diethyl aminoethyl hexanoate, chloropyuril, compound sodium nitrophenolate, auxin, gibberellin, ethylene,
The basic element of cell division, abscisic acid, brassinosteroid, salicylic acid, jasmonic, paclobutrazol, polyamines, brassin, naphthalene methyl acetate, naphthalene second
One or more of acid, paclobutrazol, cycocel, heteroauxin are with any than mixing.
Preferably, the fertilizer material include, urea, ammonium chloride, ammonium sulfate, potassium chloride, potassium sulfate, Diammonium phosphate (DAP), mistake
One or more of calcium phosphate, double superhosphate, potassium dihydrogen phosphate, dipotassium hydrogen phosphate, humic acid potassium, potassium fulvate are with any
Than mixing.
The present invention also provides a kind of preparation method of the moisture-retention sustained release fertilizer of growth-promoting of biomass synthesis, the method packets
Include following steps:
(1) under conditions of ice-water bath, sodium hydroxide is added dropwise into acrylic acid or acrylamide, adjusts acrylic acid or propylene
Reaction monomers are made to 65~85% in the degree of neutralization of amide；
(2) biomass, reaction monomers, initiator and crosslinking agent are added sequentially in reaction vessel, stir to obtain gel
Product, heat preservation, will obtain water-holding slow-release carrier after gained gel-like product drying, cooling, crushing；
(3) plant growth regulator is uniformly sprayed on water-holding slow-release carrier made from step (2)；
(4) different fertilizer materials is crushed by required proportion, is uniformly mixed；
(5) through extrusion granulation, screening, drying, packaging after mixture made from step (3) and step (4) being uniformly mixed
The moisture-retention sustained release fertilizer of growth-promoting of biomass synthesis of the present invention can be obtained.
Preferably, in the step (2) by reaction vessel be placed in 65~100 DEG C of thermostat water baths stir, keep the temperature 60~
180min。
Compared with prior art, the present invention having the following beneficial effects:
1, the present invention takes full advantage of reproducible abandoned biomass resource, reduces life using biomass as primary raw material
Cost of material is produced, the dependence to petroleum chemicals is reduced, prepared growth-promoting water-retaining type slow-release fertilizer in the soil can be degradable,
Solves traditional coated fertilizer caused environmental problem difficult to degrade.
2, the moisture-retention sustained release fertilizer of growth-promoting of biomass synthesis of the present invention has both water conservation, growth-promoting and slow-release function.It is slow
It releases carrier and contains a large amount of-NH2With the hydrophilic radicals such as-COOH, internal voids increase after water absorption and swelling, further enhance suction
Water water holding and nutrient slowly-released performance；Plant growth regulator is embedded in water-holding slow-release carrier cavernous structure, in the soil through micro-
It is gradually released under the action of biology and water, regulates and controls crop growing state；Fertilizer nutrient forms gel after being absorbed water by slow-released carrier
Encapsulated by structures reduces and contacts with soil moisture and the direct of microorganism, has preferable nutrient slowly-released performance.
3, it the preparation method technical process of the moisture-retention sustained release fertilizer of growth-promoting of biomass of the present invention synthesis and required sets
It is standby simple, it is low in cost, there are preferable application value and market prospects.
[Detailed description of the invention]
Fig. 1 is that the moisture-retention sustained release fertilizer of growth-promoting prepared by embodiment 1 and embodiment 2 inhales pure water and salt imbibition (0.9%
Sodium chloride) multiplying power histogram.
Fig. 2 is the moisture-retention sustained release fertilizer Nitrogen Leaching rate profile of growth-promoting prepared by embodiment 3.
[specific embodiment]
In order to make the objectives, technical solutions, and advantages of the present invention clearer, present invention following specific embodiments
It is illustrated, but is only limitted to this absolutely not.As described below is the preferable embodiment of the present invention, is used only to describe the present invention, cannot
Be interpreted as limitation of the present invention, it should be pointed out that be any modification made within the spirit and principles in the present invention, it is equivalent
Replacement and improvement, should all be included in the protection scope of the present invention.
The index method that the present invention tests is as follows:
Using dense H2SO4-H2O2The moisture-retention sustained release fertilizer sample of growth-promoting of the biomass synthesis of digestion method processing preparation, it is triumphant
Family name's nitriding measures total nitrogen content.
Water suction (liquid) multiplying power measurement (g/g): 1.0g (m is accurately weighed1, it is accurate to 0.0001g) and powdered growth-promoting water conservation
Type slow release fertilizer is packed into a long 5cm, wide 5cm, and aperture is to record plate membrane mesh bag quality in the plate membrane mesh bag of 0.10um
m0；Mesh bag is put into distilled water or 0.9% sodium chloride solution again, is taken out after impregnating 10min, takes out and stands to anhydrous in 2min
Until dripping, weighs the moisture-retention sustained release fertilizer of growth-promoting and mesh bag gross mass is m2(g), according to mass change meter before and after water suction (liquid)
Calculate water suction (liquid) multiplying power.
Absorb water (liquid) multiplying power=(m2-m1-m0)/m1
Nitrogen Leaching rate measurement (%): the powdered growth-promoting water-retaining type sustained release of 1.0g (being accurate to 0.0001g) is accurately weighed
Fertilizer is added to internal diameter 5cm, and in the quartz sand column of high 25cm organic glass material, covering 3cm quartz sand prevents from drenching above fertilizer
Directly washing away for molten water, has the plastic tube of 50ml for picking up leachate below leaching column.By peristaltic pump by 30ml pure water
It is slowly dropped in leaching column, is once eluted every 30min, record the leachate volume picked up every time, leaching process is total
It carries out 25 times.Using dimethylaminobenzaldehyde colorimetry measurement leachate in urea state nitrogen content, be added etc. nitrogen quantity it is common
The difference that urea state nitrogen content changes with leaching time in urea comparison leachate.
Leaching rate (%)=mi/m0* 100%；Mi is first i times (i >=1) leaching amount of liquid nitrogen summation (g), m in formula0For growth-promoting
Nitrogen content (g) in moisture-retention sustained release fertilizer.
In order to enable those skilled in the art can clearly understand the technical solution of the application, below with reference to tool
The technical solution of the application is described in detail in the embodiment and comparative example of body.
Test material used in the embodiment of the present invention is the commercially available material of this field routine, can pass through commercial channel
It is commercially available.
Embodiment 1
The preparation method of the moisture-retention sustained release fertilizer of growth-promoting of corn stover synthesis, comprising the following steps:
(1) under conditions of ice-water bath, the sodium hydroxide solution of 5mol/L is added dropwise into 100g acrylic acid, adjusts acrylic acid
Reaction monomers are made to 65% in degree of neutralization；
(2) it weighs 30g and crosses the corn stovers of 100 mesh in 500ml three-necked flask, the stirring of 100ml distilled water is added, is put into
Constant temperature 30min in 90 DEG C of thermostat water baths；Then by 100g reaction monomers, 0.2g initiator potassium persulfate and 1.5g crosslinking agent N,
N'- methylene-bisacrylamide is successively slowly added into three-necked flask, and thermostat water bath continues to stir controlled at 75 DEG C
It mixes to gel is become, keeps the temperature 90min；It is crushed after 60 DEG C of vacuum oven drying after reaction, powdered water conservation is made
Slow-released carrier；
(3) the diethyl aminoethyl hexanoate solution of 1g 0.1mg/kg is uniformly sprayed at step (2) preparation according to mass ratio 1:100
On water-holding slow-release carrier；
(4) the powdered urea of 800g, Diammonium phosphate (DAP) and potassium sulfate are uniformly mixed according to mass ratio 2:1:2；
(5) mixture prepared by step (3) and step (4) is uniformly mixed and is placed on extrusion granulation in Squeezinggranulator,
The moisture-retention sustained release fertilizer of growth-promoting of corn stover synthesis can be prepared.
Conclusion: as shown in Figure 1, the moisture-retention sustained release fertilizer of growth-promoting of the synthesis of biomass prepared by embodiment 1 is in deionization
Water absorbent rate is 279.8g/g in water；Liquid absorbency rate is 117.4g/g in 0.9% sodium chloride solution, illustrates prepared by embodiment 1
Biomass synthesis the moisture-retention sustained release fertilizer of growth-promoting moisture with higher and salting liquid confinement capabilities.
Embodiment 2:
The preparation method of the moisture-retention sustained release fertilizer of growth-promoting of wheat stalk synthesis, comprising the following steps:
(1) under conditions of ice-water bath, the sodium hydroxide solution of 5mol/L is added dropwise into 100g acrylic acid, adjusts acrylic acid
Reaction monomers are made to 75% in degree of neutralization；
(2) it weighs 40g and crosses the wheat stalks of 100 mesh in 500ml three-necked flask, 100ml distilled water is added, stirring is put into
Constant temperature 30min in 90 DEG C of thermostat water baths；By 100g reaction monomers, 0.2g initiator ammonium persulfate and 2.5g crosslinking agent borax according to
It is secondary to be slowly added into three-necked flask, 75 DEG C of temperature are controlled, water bath with thermostatic control continues stirring to gel is become, and keeps the temperature 90min；Instead
It is crushed after 60 DEG C of vacuum oven drying after answering, water-holding slow-release carrier is made；
(3) compound sodium nitrophenolate solution of 2g 0.1mg/kg is uniformly sprayed at step (2) preparation according to mass ratio 1:50
On water-holding slow-release carrier；
(4) after mixing by step (3) resulting mixture and 500g urea powder, it squeezes and makes in Squeezinggranulator
Grain can prepare the moisture-retention sustained release fertilizer of growth-promoting of wheat stalk synthesis.
Conclusion: as shown in Figure 1, the moisture-retention sustained release fertilizer of growth-promoting of the synthesis of biomass prepared by embodiment 2 is in deionization
Water absorbent rate is respectively 424.3g/g in water；Liquid absorbency rate is respectively 234.2g/g in 0.9% sodium chloride solution, illustrates to implement
The moisture-retention sustained release fertilizer of the growth-promoting moisture with higher and salting liquid confinement capabilities of the synthesis of biomass prepared by example 2.
Embodiment 3:
The preparation method of the moisture-retention sustained release fertilizer of growth-promoting of waste scrap carton synthesis, comprising the following steps:
(1) under conditions of ice-water bath, the sodium hydroxide solution of 5mol/L is added dropwise into 100g acrylamide, adjusts propylene
Reaction monomers are made to 70% in amide degree of neutralization；
(2) it weighs 50g and crosses the waste scrap carton powder of 100 mesh in 500ml three-necked flask, 100ml distilled water, stirring is added
It is put into constant temperature 30min in 90 DEG C of thermostat water baths；By 100g reaction monomers, 0.4g initiator potassium persulfate and 4.5g crosslinking agent boron
Acid is successively slowly added into three-necked flask, controls 75 DEG C of temperature, and water bath with thermostatic control continues stirring to gel is become, and keeps the temperature
90min；It is crushed after 75 DEG C of vacuum oven drying after reaction, water-holding slow-release carrier is made；
(3) the diethyl aminoethyl hexanoate solution of 0.5g 0.15mg/kg is uniformly sprayed at step (2) preparation according to mass ratio 1:300
Water-holding slow-release carrier on；
(4) the powdered urea of 700g, ammonium chloride, double superhosphate and potassium chloride 5:1:2:3 in mass ratio are uniformly mixed；
(5) mixture prepared by step (3) and (4) is placed in blender and is stirred, sent after mixing using conveyer belt
Enter extrusion granulation in Squeezinggranulator, the moisture-retention sustained release fertilizer of growth-promoting of waste scrap carton synthesis can be prepared.
Conclusion: as shown in Fig. 2, compared with common urea, the growth-promoting water-retaining type of the synthesis of waste scrap carton prepared by embodiment 3
Slow-release fertilizer, since leaching water is adsorbed, leads to no leachate leaching, reduces initial stage Nitrogen Leaching in preceding 2 leaching process；
There is the Nitrogen Leaching close to 80% to come out after 10 elution, and common urea just complete leaching loss in the 4th, explanation
3 products obtained therefrom of embodiment has preferable nitrogen slow release effect.
Embodiment 4:
The preparation method of the moisture-retention sustained release fertilizer of growth-promoting of methane slag synthesis, comprising the following steps:
(1) under conditions of ice-water bath, the sodium hydroxide solution of 5mol/L is added dropwise into 100g acrylamide, adjusts propylene
Reaction monomers are made to 85% in amide degree of neutralization；
(2) it weighs 54g and crosses the methane slags of 100 mesh in 500ml three-necked flask, 100ml distilled water is added, stirring is put into 90
Constant temperature 30min in DEG C thermostat water bath；150g reaction monomers, 0.45g initiator potassium persulfate and 3g crosslinking agent N, N'- is sub-
Bisacrylamide is added slowly in three-necked flask, controls 75 DEG C of temperature, water bath with thermostatic control continues stirring to becoming gel
Shape keeps the temperature 90min；It is crushed after 75 DEG C of vacuum oven drying after reaction, water-holding slow-release carrier is made；
(3) lipoprotein solution in the brassin of 3.5ml 0.15mg/L is uniformly sprayed at step (2) according to mass ratio 1:40
On the water-holding slow-release carrier of preparation；
(4) 600g urea powder is stirred in blender with the mixture prepared in step (3), after mixing, benefit
It is sent into extrusion granulation in Squeezinggranulator with conveyer belt, the growth-promoting water-retaining type slow-release fertilizer based on methane slag synthesis can be prepared.
Conclusion: as shown in table 1, the moisture-retention sustained release fertilizer of growth-promoting and fertilizer described in comparative example 1-3 prepared by Example 4 is each
1.5g and 5kg wind desiceted soil are fitted into plastic flowerpot after mixing well, and every basin sows 5 Wheat Species.Every 2 days watering 100ml, in light
Behind in incubator (20 ± 1 DEG C) culture 40 days, it is rinsed with water root system, using LA-S root scanner and its data analysis system
Compare different disposal root growth difference.
Test result is shown in Table 1:
Note: the nitrogen content in table 1 in fertilizer described in comparative example 1-4 is same as Example 4；Wherein, comparative example 1 is common
Urea；Comparative example 2 is the slow-release nitrogen fertilizer using urea and formaldehyde condensation preparation；Comparative example 3 sprays on the basis of comparative example 2
Lipoprotein solution in a certain amount of brassin (in brassin lipoprotein solution: urea=1:160)；Comparative example 4 and the difference of embodiment 4 are
Comparative example 4 does not spray lipoprotein solution in brassin.
As shown in Table 1, in terms of promoting wheat seeding to take root, the embodiment of the present invention 4 has significant advantage compared with comparative example 1-4,
Illustrate that the moisture-retention sustained release fertilizer of growth-promoting of biomass synthesis of the present invention has good growth-promoting performance.
In conclusion the moisture-retention sustained release fertilizer of growth-promoting of biomass synthesis of the present invention has both water conservation, growth-promoting and sustained release
Function, and this discarded renewable resource of biomass is taken full advantage of, reduce the dependence to petroleum chemicals, simplifies life
Production. art reduces production cost, is suitable for large-scale industrial production and the popularization and use on field crop.
Claims (10)
1. a kind of moisture-retention sustained release fertilizer of growth-promoting of biomass synthesis, which is characterized in that the slow release fertilizer includes following component:
10%~20% water-holding slow-release carrier, 0.01-0.5% plant growth regulator, surplus are fertilizer material.
2. the moisture-retention sustained release fertilizer of growth-promoting of biomass synthesis according to claim 1, which is characterized in that the water conservation is slow
It releases carrier and is prepared by biomass, reaction monomers, initiator and crosslinking agent through graft polymerization reaction, the mass ratio of each component is
(30~50): 100:(0.2~0.4): (1.5~4.5).
3. the moisture-retention sustained release fertilizer of growth-promoting of biomass synthesis according to claim 2, which is characterized in that the biomass
For agricultural crop straw, waste paper, leaf, reed, sawdust, bagasse, waste cotton wadding, methane slag, kitchen waste, discarded starch, tree
The mixture of one or more of skin, the leaf of bamboo.
4. the moisture-retention sustained release fertilizer of growth-promoting of biomass synthesis according to claim 2, which is characterized in that the reaction is single
Body is that the acrylic acid that degree of neutralization is 65~85% or the one or two kinds of of acrylamide are mixed with any ratio.
5. the moisture-retention sustained release fertilizer of growth-promoting of biomass synthesis according to claim 2, which is characterized in that the initiator
For one or more of potassium peroxydisulfate, ammonium persulfate, persulfate with any than mixing.
6. the moisture-retention sustained release fertilizer of growth-promoting of biomass synthesis according to claim 2, which is characterized in that the crosslinking agent
For N, one or more of N'- methylene-bisacrylamide, borax, boric acid, boracic organic matter are with any than mixing.
7. the moisture-retention sustained release fertilizer of growth-promoting of biomass synthesis according to claim 1, which is characterized in that the plant is raw
Long regulator is diethyl aminoethyl hexanoate, chloropyuril, compound sodium nitrophenolate, auxin, gibberellin, ethylene, the basic element of cell division, abscisic acid, rape element
Lactone, salicylic acid, jasmonic, paclobutrazol, polyamines, brassin, naphthalene methyl acetate, methyl α-naphthyl acetate, paclobutrazol, cycocel, indoles second
One or more of acid is with any than mixing.
8. the moisture-retention sustained release fertilizer of growth-promoting of biomass synthesis according to claim 1, which is characterized in that the fertilizer is former
Material includes, urea, ammonium chloride, ammonium sulfate, potassium chloride, potassium sulfate, Diammonium phosphate (DAP), calcium superphosphate, double superhosphate, biphosphate
One or more of potassium, dipotassium hydrogen phosphate, humic acid potassium, potassium fulvate are with any than mixing.
9. the preparation method of the moisture-retention sustained release fertilizer of growth-promoting of any one of the claim 1-8 biomass synthesis, feature exist
In described method includes following steps:
(1) under conditions of ice-water bath, be added dropwise sodium hydroxide into acrylic acid or acrylamide, adjust degree of neutralization to 65~
85%, reaction monomers are made；
(2) biomass, reaction monomers, initiator and crosslinking agent are added sequentially in reaction vessel, stir to obtain gel-like product,
Heat preservation, will obtain water-holding slow-release carrier after gained gel-like product drying, cooling, crushing；
(3) plant growth regulator is uniformly sprayed on water-holding slow-release carrier made from step (2)；
(4) different fertilizer materials is crushed by required proportion, is uniformly mixed；
(5) through extrusion granulation, screening, drying, packaging after mixture made from step (3) and step (4) being uniformly mixed.
10. preparation method according to claim 9, which is characterized in that reaction vessel is placed in 65 in the step (2)~
It stirred in 100 DEG C of thermostat water baths, keep the temperature 60~180min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910040937.4A CN109851424A (en) | 2019-01-16 | 2019-01-16 | A kind of moisture-retention sustained release fertilizer of growth-promoting and preparation method thereof of biomass synthesis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910040937.4A CN109851424A (en) | 2019-01-16 | 2019-01-16 | A kind of moisture-retention sustained release fertilizer of growth-promoting and preparation method thereof of biomass synthesis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109851424A true CN109851424A (en) | 2019-06-07 |
Family
ID=66895034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910040937.4A Pending CN109851424A (en) | 2019-01-16 | 2019-01-16 | A kind of moisture-retention sustained release fertilizer of growth-promoting and preparation method thereof of biomass synthesis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109851424A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109650992A (en) * | 2019-01-15 | 2019-04-19 | 聊城大学 | A kind of sulfonated humic acid base water-retaining type slow-release nitrogen fertilizer and the preparation method and application thereof |
| CN110746235A (en) * | 2019-12-04 | 2020-02-04 | 河西学院 | Preparation method of nitrogen-phosphorus-potassium compound slow-release fertilizer based on corn straws |
| CN110981592A (en) * | 2019-12-23 | 2020-04-10 | 山东农业大学 | Novel water-retention slow-release nitrogen-phosphorus-potassium fertilizer and preparation method thereof |
| CN111574282A (en) * | 2020-05-08 | 2020-08-25 | 徐州莫大新材料科技有限公司 | Solid fertilizer capable of preventing soil swampiness and preparation process thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101209938A (en) * | 2006-12-30 | 2008-07-02 | 江苏里下河地区农业科学研究所 | Special-purpose slow release fertilizer for water-retention sprout-cultivation |
| CN103304313A (en) * | 2013-06-13 | 2013-09-18 | 重庆恒远晋通科技有限公司 | High-water-retention sustained-release fertilizer |
| CN106397070A (en) * | 2016-11-24 | 2017-02-15 | 周岩 | Compound water retaining slow release fertilizer and production method thereof |
| CN108641047A (en) * | 2018-05-14 | 2018-10-12 | 广西大学 | A kind of moisture-retention sustained release fertilizer and preparation method thereof |
-
2019
- 2019-01-16 CN CN201910040937.4A patent/CN109851424A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101209938A (en) * | 2006-12-30 | 2008-07-02 | 江苏里下河地区农业科学研究所 | Special-purpose slow release fertilizer for water-retention sprout-cultivation |
| CN103304313A (en) * | 2013-06-13 | 2013-09-18 | 重庆恒远晋通科技有限公司 | High-water-retention sustained-release fertilizer |
| CN106397070A (en) * | 2016-11-24 | 2017-02-15 | 周岩 | Compound water retaining slow release fertilizer and production method thereof |
| CN108641047A (en) * | 2018-05-14 | 2018-10-12 | 广西大学 | A kind of moisture-retention sustained release fertilizer and preparation method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109650992A (en) * | 2019-01-15 | 2019-04-19 | 聊城大学 | A kind of sulfonated humic acid base water-retaining type slow-release nitrogen fertilizer and the preparation method and application thereof |
| CN110746235A (en) * | 2019-12-04 | 2020-02-04 | 河西学院 | Preparation method of nitrogen-phosphorus-potassium compound slow-release fertilizer based on corn straws |
| CN110981592A (en) * | 2019-12-23 | 2020-04-10 | 山东农业大学 | Novel water-retention slow-release nitrogen-phosphorus-potassium fertilizer and preparation method thereof |
| CN111574282A (en) * | 2020-05-08 | 2020-08-25 | 徐州莫大新材料科技有限公司 | Solid fertilizer capable of preventing soil swampiness and preparation process thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109851424A (en) | A kind of moisture-retention sustained release fertilizer of growth-promoting and preparation method thereof of biomass synthesis | |
| CN101891564B (en) | Method for preparing biological compound fertilizer | |
| CN103951531B (en) | A kind of charcoal base water conservation control slow-release fertilizer and its preparation method and application | |
| CN102503652B (en) | Preparation method of organic compound soil for rice seedling raising | |
| CN102210256A (en) | Container culture medium prepared from edible fungi residue and production method thereof | |
| CN109650992A (en) | A kind of sulfonated humic acid base water-retaining type slow-release nitrogen fertilizer and the preparation method and application thereof | |
| CN103319221B (en) | Method for preparing agricultural fertilizer from domestic wastewater and mushroom dreg | |
| CN103373872A (en) | Organic nutrient soil prepared from straw biogas residue and preparation method thereof | |
| CN106187613B (en) | One kind is for purple soil flue-cured tobacco root system conditioning products and preparation method and application | |
| CN108276210A (en) | A kind of tea oil tree special fertilizer and preparation method thereof | |
| CN106589258B (en) | The preparation method and its coating method of degradable temperature-responsive slow-release or control-release fertilizer coated fertilizer | |
| CN108191514A (en) | A kind of acid soil specific complex punching fertilising | |
| CN106588402A (en) | Green seedling cultivation and planting organic and inorganic compound fertilizer and preparation method thereof | |
| CN106117446B (en) | A kind of preparation method of degradable Watering-fertilizing integration water retention agent | |
| CN108264405A (en) | A kind of organic fertilizer prepared using cassava trade waste and preparation method thereof | |
| CN109734496A (en) | A method of biological organic fertilizer is prepared using stalk | |
| CN105016885A (en) | Easily degradable particle type water retention matrix and preparation method thereof | |
| CN108264418A (en) | A kind of flower planting matrix and preparation method thereof | |
| CN101985486B (en) | Method for preparing super absorbent resin containing compound plant growth regulator | |
| CN105175097A (en) | Special fig planting fertilizer prepared from humic acid complexed with inorganic elements and preparation method for fertilizer | |
| Li et al. | Effects of different fermentation synergistic chemical treatments on the performance of wheat straw as a nursery substrate | |
| CN100398625C (en) | Water-loss reducer of soil and its preparation method | |
| CN109867568A (en) | A kind of polypeptide three chelates biological coated control release fertilizer and preparation method thereof | |
| CN109762571A (en) | A kind of draught resisting and water retaining and preparation method and application method | |
| CN106673912B (en) | A kind of water conservation biological organic fertilizer and preparation method thereof |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190607 |