CN103304310A - Oxygen-increasing slow-release fertilizer - Google Patents
Oxygen-increasing slow-release fertilizer Download PDFInfo
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- CN103304310A CN103304310A CN2013102017553A CN201310201755A CN103304310A CN 103304310 A CN103304310 A CN 103304310A CN 2013102017553 A CN2013102017553 A CN 2013102017553A CN 201310201755 A CN201310201755 A CN 201310201755A CN 103304310 A CN103304310 A CN 103304310A
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- slow
- urea peroxide
- release fertilizer
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- cyclodextrin
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/54—Improvements relating to the production of bulk chemicals using solvents, e.g. supercritical solvents or ionic liquids
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Abstract
The invention relates to an oxygen-increasing slow-release fertilizer. The fertilizer is prepared from a urea peroxide-beta-cyclodextrin inclusion compound, urea peroxide (Perurea: CO(NH2)2.H2O2) and beta-cyclodextrin which are in effective quantities, wherein the urea peroxide-beta-cyclodextrin inclusion compound takes urea peroxide as a kernel and takes beta-cyclodextrin as an outer layer. According to the slow-release fertilizer disclosed by the invention, the oxygen content is high and can reach 17-20%; and after the slow-release fertilizer disclosed by the invention is used, the oxygen release is sustained, mild, stable and controllable and can sustain 300 hours per 100g of urea peroxide in net content. The slow-release fertilizer disclosed by the invention has the advantages that the oxygen release manner is slow, mild and stable, is stronger in activity and strong in disinfection and can be used for easily eliminating diseases and pests from potted landscapes, so that the normal survival ratio of potted plants is increased effectively; and meanwhile, the slow-release fertilizer disclosed by the invention has effects on increasing, disinfecting and cleaning indoor oxygen and has incomparable superiority compared with currently reported relevant research results and new products on the market.
Description
The present patent application is application number 201110127538.5, the applying date on 05 17th, 2011, the dividing an application of denomination of invention " a kind of oxygenation slow-release fertilizer and its preparation method and application ".
Technical field
The present invention is the chemical enhancement slow release fertilizer field of holding concurrently, particularly a kind of chemical enhancement that is applicable to indoor pot ornamental plant slow-release fertilizer of holding concurrently.
Background technology
Existing slow-release fertilizer is effective constituent to be carried out coating reach slowly-releasing, and the coating layer complicated component, to certain destructive force is arranged behind the soil application; If this influence to soil after existing slow-release fertilizer is used by big area is disperseed, the regulatory function of soil self can slowly digest this destructive force, and if existing slow-release fertilizer is applied to penjing plant, because very little, the so this destructive force to soil of potted landscape soil area just is exaggerated, influences bigger to potted landscape soil.Existing pot flowers fertilising is based on inorganic fertilizer, and violent, the difficult amount of application of grasping of fertilizer efficiency burns seedling easily; And fertilizer is not through special disposal, the perishable small environment pollution that causes; The application of slow-release fertilizer is also arranged in pot flowers at present both at home and abroad, make that fertilizer efficiency is stable, environmental pollution is little, but generally speaking its slowly-releasing efficient is desirable not enough, existing slow-release fertilizer is big to potted landscape soil destructive force simultaneously, easily causes soil compaction, fertilizer efficiency decline etc. problem.
Summary of the invention
The object of the present invention is to provide a kind of inclusion compound slow-release fertilizer, this slow-release fertilizer slowly-releasing effect phase is long, and the function of chemical peculiar smell in lasting oxygen release, increase indoor oxygen content and the decontamination chamber is also arranged simultaneously, is particularly suitable for the indoor pot flowers.
The objective of the invention is to realize by following technical measures:
A kind of oxygenation slow-release fertilizer is characterized in that: described fertilizer is by urea peroxide-Benexate Hydrochloride, the urea peroxide (Perurea:CO (NH of significant quantity
2)
2H
2O
2) and the beta-cyclodextrin composition; Described urea peroxide-Benexate Hydrochloride is to be that kernel, beta-cyclodextrin are outer with the urea peroxide; Described urea peroxide-Benexate Hydrochloride accounts for 89%-98.5%, and urea peroxide and beta-cyclodextrin account for 1.5%-11%, in molar content.
Slow-release fertilizer of the present invention is that urea peroxide and beta-cyclodextrin make by supercutical fluid method inclusion, contains urea peroxide-Benexate Hydrochloride, urea peroxide and beta-cyclodextrin in the described slow-release fertilizer; Urea peroxide is that kernel, beta-cyclodextrin are skin in described urea peroxide-Benexate Hydrochloride, and it accounts for 92%-98.5%, urea peroxide (Perurea:CO (NH
2)
2H
2O
2) account for 1.5%-8% with beta-cyclodextrin, in molar content.
The preparation method of above-mentioned oxygenation slow-release fertilizer is characterized in that: be beta-cyclodextrin to be mixed the back add in the reactor with urea peroxide, adopt the supercutical fluid method that beta-cyclodextrin, urea peroxide are carried out inclusion reaction; Described supercutical fluid method is with CO
2Be medium; Described feeding supercutical fluid CO
2It is 13-18Mpa that the temperature of carrying out inclusion reaction is preferably 120-150 ℃, pressure, reaction 6-8h.
The preparation method of above-mentioned oxygenation slow-release fertilizer, carry out according to the following steps:
Be that 1: 1 beta-cyclodextrin and urea peroxide solid substance mix the back and add in the reactor with mol ratio;
Under 150 ℃, 15MPa, keep supercutical fluid CO
2Fluid is by the mixture 6h of oxidation urea and beta-cyclodextrin, and releasing reactor pressure is isolated carbonic acid gas and can be supplied to recycle from top; Obtain inclusion compound from reactor lower part, behind drying under reduced pressure, obtain the oxygenation slow-release fertilizer.Be in the CO of supercritical state
2Fluid is the carrier (SCF) that a kind of mixture to beta-cyclodextrin and urea peroxide plays dissolving homogeneous effect herein, has a supercutical fluid (SCF) that superior mass transfer ability promotes that beta-cyclodextrin-urea peroxide inclusion process is carried out as a kind of again.
The present invention has following beneficial effect:
1, when watering for potted landscape, slow-release fertilizer of the present invention discharge nascent oxygen [O] ↑, be equivalent to negative oxygen ion, not only increase the oxygen level of room air, and human body had to refresh oneself support smart effect, can also play indoor disinfection, especially to the gas with foreign flavor table elimination effect in the new house of firm finishing; The urea of its slowly-releasing has also improved the survival rate of potted plant as the fertilizer of potted plant simultaneously.
2, slow-release fertilizer oxygen-content active amount height of the present invention, can reach 17%～20%, than percarbonic acid calcium commonly used, SPC-D, Sodium peroxoborate, (oxygen level 10%～14% is put oxygen 0.5h～2h) and is waited and want high many for Potassium Persulphate and ammonium persulphate; Existing novel sustained release fertilizer, its mesolite coated urea and composite fertilizer's slow-release carbamide thereof are not put oxygen; Urea peroxide generally continues 6h～8h; And product of the present invention put after using oxygen continue, gentle, stable, can control the sustainable 300h of 100g (net content of urea peroxide).It is slowly gentle, stable and activity degree is stronger that slow-release fertilizer of the present invention is put the oxygen mode, and the strong toxicity that disappears is easily eliminated evil in the disease in the potted landscape, thereby has effectively improved the normal survival rate of potted plant; Product of the present invention also has indoor oxygenation, sterilization cleaning effect simultaneously, compares with the correlative study achievement of present report and the product innovation of market supply, and it has unrivaled superiority.
3, slow-release fertilizer of the present invention produces extremely strong oxidation synergy under catalysis and photochemical condition, and this kind reaction can not only be eliminated NO in the water body
2, NH
3, H
2Poisonous substances such as S, the phenyl amines in the prior room air of degrading comprise that triphenylamine methane (malachite green), itrofurans (Nifurazolidone), norfloxacin (Norxin) and formaldehyde and organochlorine materials such as (trichloromethanes) eliminate its peculiar smell.After slow-release fertilizer of the present invention was handled through the supramolecule inclusion, consumption was few, the usefulness height, and general percarbonic acid calcium and SPC-D want much cheap.
4, characteristics such as low, the product drying-free of preparation method's no solvent residue of oxygenation slow-release fertilizer of the present invention, inclusion temperature are more suitable in inclusion wet, heat sensitive urea peroxide the inclusion rate height; Whole process easily is automated and scale production.Application process of the present invention is simple, convenient simultaneously.
Embodiment
Carry out concrete description below by the present invention of embodiment; be necessary to be pointed out that at this following examples only are used for the present invention is further specified; can not be interpreted as limiting the scope of the invention; without departing from the spirit and substance of the case in the present invention; modification or replacement to the inventive method, step or condition are done all belong to scope of the present invention.
Below employed method if no special instructions, be ordinary method; Material therefor and reagent etc. if no special instructions, all can obtain from commerce.
Embodiment 1
A kind of oxygenation slow-release fertilizer, the urea peroxide-Benexate Hydrochloride by 98%, 0.5% urea peroxide (Perurea:CO (NH
2)
2H
2O
2) and 1.5% beta-cyclodextrin form, in molar content; Wherein urea peroxide-Benexate Hydrochloride is to be that kernel, beta-cyclodextrin are outer with the urea peroxide.With this oxygenation slow-release fertilizer and MnO
2Be that 1:20 mixes as medicament layer, with described oxygenation slow-release fertilizer and MnO by mass ratio
2The medicament layer of forming places on the loam layer of flower landscape, below the ridging layer, by potted landscape normally the mode of watering water, this slow-release fertilizer fertilizer efficiency is fast, just have nascent oxygen [O] to discharge about 10 seconds using the back, its fertilizer efficiency is stable, permanent simultaneously, and it has continued about 280h at 100g (net content of urea peroxide).
Embodiment 2
A kind of oxygenation slow-release fertilizer, the urea peroxide-Benexate Hydrochloride by 95%, 4% urea peroxide (Perurea:CO (NH
2)
2H
2O
2) and 1% beta-cyclodextrin form, in molar content; Wherein urea peroxide-Benexate Hydrochloride is to be that kernel, beta-cyclodextrin are outer with the urea peroxide.
Embodiment 3
A kind of oxygenation slow-release fertilizer, the urea peroxide-Benexate Hydrochloride by 92%, 4% urea peroxide (Perurea:CO (NH
2)
2H
2O
2) and 4% beta-cyclodextrin form, in molar content; Wherein urea peroxide-Benexate Hydrochloride is to be that kernel, beta-cyclodextrin are outer with the urea peroxide.
Embodiment 4
A kind of oxygenation slow-release fertilizer, the urea peroxide-Benexate Hydrochloride by 98.5%, 0.5% urea peroxide (Perurea:CO (NH
2)
2H
2O
2) and 1% beta-cyclodextrin form, in molar content; Wherein urea peroxide-Benexate Hydrochloride is to be that kernel, beta-cyclodextrin are outer with the urea peroxide.With this oxygenation slow-release fertilizer and MnO
2Be to mix as medicament layer, with described oxygenation slow-release fertilizer and MnO at 1: 20 by mass ratio
2The medicament layer of forming places on the loam layer of flower landscape, below the ridging layer, by potted landscape normally the mode of watering water, this slow-release fertilizer fertilizer efficiency is fast, just have nascent oxygen [O] to discharge several seconds after using, its fertilizer efficiency is stable, permanent simultaneously, and it has continued 300h at 100g (net content of urea peroxide).
Embodiment 5
A kind of oxygenation slow-release fertilizer, the urea peroxide-Benexate Hydrochloride by 97%, 1% urea peroxide (Perurea:CO (NH
2)
2H
2O
2) and 2% beta-cyclodextrin form, in molar content; Wherein urea peroxide-Benexate Hydrochloride is to be that kernel, beta-cyclodextrin are outer with the urea peroxide.
Embodiment 6
A kind of oxygenation slow-release fertilizer, the urea peroxide-Benexate Hydrochloride by 89%, 1% urea peroxide (Perurea:CO (NH
2)
2H
2O
2) and 10% beta-cyclodextrin form, in molar content; Wherein urea peroxide-Benexate Hydrochloride is to be that kernel, beta-cyclodextrin are outer with the urea peroxide.With this oxygenation slow-release fertilizer and MnO
2Be to mix as medicament layer, with described oxygenation slow-release fertilizer and MnO at 1: 15 by mass ratio
2The medicament layer of forming places on the loam layer of flower landscape, below the ridging layer, by potted landscape normally the mode of watering water, this slow-release fertilizer fertilizer efficiency is fast, had nascent oxygen [O] to discharge in back 5 minutes using, its fertilizer efficiency is stable, permanent simultaneously, and it has continued about 120h at 100g (net content of urea peroxide).
Embodiment 7
A kind of oxygenation slow-release fertilizer is to be that 1: 1 urea peroxide and beta-cyclodextrin makes by supercutical fluid method inclusion with mol ratio, wherein urea peroxide-Benexate Hydrochloride account for 90%, urea peroxide (Perurea:CO (NH
2)
2H
2O
2) account for 6% and beta-cyclodextrin account for 4%, in molar content; Urea peroxide-Benexate Hydrochloride is to be that kernel, beta-cyclodextrin are outer with the urea peroxide.
Embodiment 8
A kind of oxygenation slow-release fertilizer is to be that 1: 2 urea peroxide and beta-cyclodextrin makes by supercutical fluid method inclusion with mol ratio, wherein urea peroxide-Benexate Hydrochloride account for 89%, urea peroxide (Perurea:CO (NH
2)
2H
2O
2) account for 5% and beta-cyclodextrin account for 6%, in molar content; Urea peroxide-Benexate Hydrochloride is to be that kernel, beta-cyclodextrin are outer with the urea peroxide.
Embodiment 9
As the preparation method of the oxygenation slow-release fertilizer of embodiment 1, the beta-cyclodextrin of wiring solution-forming state is mixed the back add in the reactor, with CO with urea peroxide
2For medium adopts the supercutical fluid method beta-cyclodextrin, urea peroxide are carried out inclusion reaction.
Embodiment 10
As the preparation method of the oxygenation slow-release fertilizer of embodiment 2, the beta-cyclodextrin of solid is mixed the back add in the reactor, with CO with urea peroxide
2Be that 120-150 ℃, pressure be 13-18Mpa under with beta-cyclodextrin, urea peroxide in temperature for medium adopts the supercutical fluid method, reaction 6-8h carries out inclusion reaction.
Embodiment 11
As the preparation method of the oxygenation slow-release fertilizer of embodiment 4, be that 1: 1 beta-cyclodextrin mixes the back and adds in the reactor, with CO with urea peroxide with the mol ratio of solid
2Be that 150 ℃, pressure be 15Mpa under with beta-cyclodextrin, urea peroxide in temperature for medium adopts the supercutical fluid method, reaction 6h carries out inclusion reaction, releasing reactor pressure, and isolating carbonic acid gas from top can be for recycling; Obtain inclusion compound from reactor lower part, behind drying under reduced pressure, obtain the oxygenation slow-release fertilizer.
Embodiment 12
As the preparation method of the oxygenation slow-release fertilizer of embodiment 6, be that 2: 1 beta-cyclodextrin mixes the back and adds in the reactor, with CO with urea peroxide with the mol ratio of solid
2Be that 120 ℃, pressure be 13Mpa under with beta-cyclodextrin, urea peroxide in temperature for medium adopts the supercutical fluid method, reaction 7h carries out inclusion reaction, releasing reactor pressure, and isolating carbonic acid gas from top can be for recycling; Obtain inclusion compound from reactor lower part, behind drying under reduced pressure, obtain the oxygenation slow-release fertilizer.
Embodiment 13
As the preparation method of the oxygenation slow-release fertilizer of embodiment 5, be that 0.5: 1 beta-cyclodextrin mixes the back and adds in the reactor, with CO with urea peroxide with the mol ratio of solid
2Be that 130 ℃, pressure be 18Mpa under with beta-cyclodextrin, urea peroxide in temperature for medium adopts the supercutical fluid method, reaction 8h carries out inclusion reaction, releasing reactor pressure, and isolating carbonic acid gas from top can be for recycling; Obtain inclusion compound from reactor lower part, behind drying under reduced pressure, obtain the oxygenation slow-release fertilizer.
Embodiment 14
As the preparation method of the oxygenation slow-release fertilizer of embodiment 7, the beta-cyclodextrin that is mixed with solution is mixed the back add in the reactor, with CO with urea peroxide
2Be that 135 ℃, pressure be 16Mpa under with beta-cyclodextrin, urea peroxide in temperature for medium adopts the supercutical fluid method, reaction 5h carries out inclusion reaction, releasing reactor pressure, and isolating carbonic acid gas from top can be for recycling; Obtain inclusion compound from reactor lower part, behind drying under reduced pressure, obtain the oxygenation slow-release fertilizer.With this oxygenation slow-release fertilizer and MnO
2Be to mix as medicament layer, with described oxygenation slow-release fertilizer and MnO at 1: 23 by mass ratio
2The medicament layer of forming places on the loam layer of flower landscape, below the ridging layer, by potted landscape normally the mode of watering water, this slow-release fertilizer fertilizer efficiency is fast, had nascent oxygen [O] to discharge in back 2 minutes using, its fertilizer efficiency is stable, permanent simultaneously, and it has continued about 200h at 100g (net content of urea peroxide).
The application process of above-mentioned oxygenation slow-release fertilizer:
With oxygenation slow-release fertilizer of the present invention and MnO
2Be that 1:20 mixes as medicament layer, with described oxygenation slow-release fertilizer and MnO by mass ratio
2The medicament layer of forming places on the loam layer of flower landscape, below the ridging layer, by potted landscape normally the mode of watering water; Described ridging layer is for potted landscape soil, as red beautiful soil or Java volcanics.
Water namely has nascent oxygen [O] at every turn ↑ be discharged in the room air, simultaneously in the inclusion compound urea gradually slowly-releasing go out, play permanent fertilizer efficiency.The effect mechanism of oxygenation slow-release fertilizer: slow-release fertilizer of the present invention contains oxidation urea (CO (NH
2)
2H
2O
2) with the inclusion compound that beta-cyclodextrin forms, described inclusion compound is CO (NH
2)
2H
2O
2Enter in the beta-cyclodextrin cavity and be protected, when watering, small amount of H
2O immerses in the beta-cyclodextrin cavity, displaces section H
2O
2, at MnO
2Katalysis under decompose to generate water and nascent oxygen [O] ↑, urea CO (NH meanwhile
2)
2Also discharge, form the permanent fertilizer efficiency that continues.
The water-soluble reaction mechanism explanation of the Benexate Hydrochloride of urea peroxide:
Inclusion compound
Claims (2)
1. oxygenation slow-release fertilizer, it is characterized in that: it is by urea peroxide-Benexate Hydrochloride of 95%, 4% urea peroxide (Perurea:CO (NH
2)
2H
2O
2) and 1% beta-cyclodextrin form, in molar content; Wherein urea peroxide-Benexate Hydrochloride is to be that kernel, beta-cyclodextrin are outer with the urea peroxide.
2. the preparation method of oxygenation slow-release fertilizer according to claim 1 is characterized in that: the beta-cyclodextrin of solid is mixed the back add in the reactor, with CO with urea peroxide
2Be that 120-150 ℃, pressure be 13-18Mpa under with beta-cyclodextrin, urea peroxide in temperature for medium adopts the supercutical fluid method, reaction 6-8h carries out inclusion reaction.
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|---|---|---|---|
| CN201310201755.3A CN103304310B (en) | 2011-05-17 | 2011-05-17 | Oxygen-increasing slow-release fertilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310201755.3A CN103304310B (en) | 2011-05-17 | 2011-05-17 | Oxygen-increasing slow-release fertilizer |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101275385A Division CN102219609B (en) | 2011-05-17 | 2011-05-17 | Oxygen-increasing controlled-release fertilizer as well as preparation method and application thereof |
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|---|---|
| CN103304310A true CN103304310A (en) | 2013-09-18 |
| CN103304310B CN103304310B (en) | 2014-07-16 |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104447137A (en) * | 2014-12-15 | 2015-03-25 | 西南石油大学 | Method for preparing dual-controlled release fertilizer |
| CN105418286A (en) * | 2015-12-30 | 2016-03-23 | 民勤县巴腾生物有机肥料有限公司 | Wolfberry dedicated fertilizer and preparation method thereof |
| CN105419365A (en) * | 2016-01-25 | 2016-03-23 | 陈一坚 | Black liquid mulching film and preparation method thereof |
| CN105418307A (en) * | 2015-12-30 | 2016-03-23 | 民勤县巴腾生物有机肥料有限公司 | Red date dedicated fertilizer and preparation method thereof |
| CN105461457A (en) * | 2015-12-30 | 2016-04-06 | 民勤县巴腾生物有机肥料有限公司 | Bio-organic fertilizer and preparing method thereof |
| CN105461458A (en) * | 2015-12-30 | 2016-04-06 | 民勤县巴腾生物有机肥料有限公司 | Special fertilizer for grapes and preparing method thereof |
| CN105503482A (en) * | 2016-01-25 | 2016-04-20 | 陈一坚 | Liquid alga fertilizer mulching film powder and using method thereof |
| CN105646069A (en) * | 2015-12-30 | 2016-06-08 | 民勤县巴腾生物有机肥料有限公司 | Multieffect biological organic granular fertilizer and preparation method thereof |
| CN105707063A (en) * | 2016-01-25 | 2016-06-29 | 何辉海 | Seaweed liquid-state mulch powder with weeding function and using method thereof |
| CN106146174A (en) * | 2016-08-10 | 2016-11-23 | 安徽省陆虎生物科技有限公司 | A kind of oxygen supplement coated fertilizer overcoming production continuous cropping obstacle |
| CN107082704A (en) * | 2017-05-19 | 2017-08-22 | 陶圣香 | A kind of preparation method of slow-release fertilizer |
| CN110921632A (en) * | 2019-12-19 | 2020-03-27 | 河南金丹乳酸科技股份有限公司 | Preparation method of oxygen supply agent for promoting rapid sugar consumption of lactic acid bacteria without changing ventilation control strategy |
| CN113480359A (en) * | 2021-07-26 | 2021-10-08 | 中国科学院南京土壤研究所 | Vegetable water culture nutrient solution and application thereof |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104447137A (en) * | 2014-12-15 | 2015-03-25 | 西南石油大学 | Method for preparing dual-controlled release fertilizer |
| CN105418286A (en) * | 2015-12-30 | 2016-03-23 | 民勤县巴腾生物有机肥料有限公司 | Wolfberry dedicated fertilizer and preparation method thereof |
| CN105646069A (en) * | 2015-12-30 | 2016-06-08 | 民勤县巴腾生物有机肥料有限公司 | Multieffect biological organic granular fertilizer and preparation method thereof |
| CN105418307A (en) * | 2015-12-30 | 2016-03-23 | 民勤县巴腾生物有机肥料有限公司 | Red date dedicated fertilizer and preparation method thereof |
| CN105461457A (en) * | 2015-12-30 | 2016-04-06 | 民勤县巴腾生物有机肥料有限公司 | Bio-organic fertilizer and preparing method thereof |
| CN105461458A (en) * | 2015-12-30 | 2016-04-06 | 民勤县巴腾生物有机肥料有限公司 | Special fertilizer for grapes and preparing method thereof |
| CN105503482A (en) * | 2016-01-25 | 2016-04-20 | 陈一坚 | Liquid alga fertilizer mulching film powder and using method thereof |
| CN105419365A (en) * | 2016-01-25 | 2016-03-23 | 陈一坚 | Black liquid mulching film and preparation method thereof |
| CN105707063A (en) * | 2016-01-25 | 2016-06-29 | 何辉海 | Seaweed liquid-state mulch powder with weeding function and using method thereof |
| CN106146174A (en) * | 2016-08-10 | 2016-11-23 | 安徽省陆虎生物科技有限公司 | A kind of oxygen supplement coated fertilizer overcoming production continuous cropping obstacle |
| CN107082704A (en) * | 2017-05-19 | 2017-08-22 | 陶圣香 | A kind of preparation method of slow-release fertilizer |
| CN110921632A (en) * | 2019-12-19 | 2020-03-27 | 河南金丹乳酸科技股份有限公司 | Preparation method of oxygen supply agent for promoting rapid sugar consumption of lactic acid bacteria without changing ventilation control strategy |
| CN113480359A (en) * | 2021-07-26 | 2021-10-08 | 中国科学院南京土壤研究所 | Vegetable water culture nutrient solution and application thereof |
| CN113480359B (en) * | 2021-07-26 | 2022-05-24 | 中国科学院南京土壤研究所 | Vegetable water culture nutrient solution and application thereof |
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|---|---|
| CN103304310B (en) | 2014-07-16 |
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