CN106365713A - Biochar fertilizer with effect of balancing fertilizer-water distribution - Google Patents
Biochar fertilizer with effect of balancing fertilizer-water distribution Download PDFInfo
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- CN106365713A CN106365713A CN201610686345.6A CN201610686345A CN106365713A CN 106365713 A CN106365713 A CN 106365713A CN 201610686345 A CN201610686345 A CN 201610686345A CN 106365713 A CN106365713 A CN 106365713A
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- Prior art keywords
- fertilizer
- biochar
- charcoal
- water distribution
- raw material
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Classifications
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B17/00—Other phosphatic fertilisers, e.g. soft rock phosphates, bone meal
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F1/00—Fertilisers made from animal corpses, or parts thereof
- C05F1/005—Fertilisers made from animal corpses, or parts thereof from meat-wastes or from other wastes of animal origin, e.g. skins, hair, hoofs, feathers, blood
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/80—Soil conditioners
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Pest Control & Pesticides (AREA)
- Health & Medical Sciences (AREA)
- Soil Sciences (AREA)
- Biochemistry (AREA)
- Biotechnology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Microbiology (AREA)
- Molecular Biology (AREA)
- Environmental & Geological Engineering (AREA)
- Fertilizers (AREA)
Abstract
The invention discloses biochar fertilizer with the effect of balancing fertilizer-water distribution. The biochar fertilizer is prepared from 60-80 parts by weight of biochar, 20-40 parts by weight of composite fertilizer, 10-20 parts by weight of a broth and 15-25 parts by weight of additives. The biochar fertilizer utilizes crop straws as raw material components. The straw raw materials have a low cost and are easily available. Through dehydration and deoxygenation treatment and high temperature charring crushing, biochar powder is obtained. The biochar fertilizer has good charring effects and char content of 25% or more. A straw charring rate is high, a char fertilizer yield is high, use effects are good, and the biochar fertilizer can passivate soil heavy metals and improve soil microbe vitality. The biochar fertilizer has a large specific surface area, improves soil organic matter content, can be used as low cost non-chemical fertilizer and guarantees yields in organic agriculture and green agriculture. The preparation method of the biochar fertilizer has simple processes, is controllable and can be implemented easily.
Description
Technical field
The present invention relates to the high-valued comprehensive utilization of biomass resource and field of environment pollution control are and in particular to a kind of put down
The charcoal fertilizer of weighing apparatus rich water distribution.
Background technology
Whether in cereal crops or the field of planting in industrial crops, just to be carried using the means of fertilising for a long time
High crop yield and quality.From earliest administration farm organic fertilizer to administration inorganic fertilizer, then to administration compound organic and inorganic fertilizer.Apply
Fertile species, dose and proportioning etc. all have a great impact to cereal crops or yield of commercial crops and quality.Traditional fertilizer
Although especially compound organic and inorganic fertilizer serves good effect in terms of improving crop yield.But, traditional fertilizer is deposited
Unreasonable in composition and nutrient formula, soil fertility can hardly be recovered, improve Soil structure, or even also can have side effects,
Cause soil compaction etc..
The generation along with substantial amounts of people and animal residue all the time of the survival and development of the mankind, with carrying of people's life
Height, human and animal excreta is also increasingly serious to the pollution of environment.First, substantial amounts of organic and nitrogen, phosphorus, potassium etc. are contained in human and animal excreta
Material, if directly discharging, can cause water pollution and eutrophication.Secondly, contain a large amount of pathogen in feces, easily cause big
Scale infectious disease popular.Again, produce toxic and harmful after organic decomposition of rotting in fecal sewage, stench occurs.This
Equal severe contamination the earth, water body, air and biomes a bit, and to health generation potential threat.Human and animal excreta simultaneously
The features such as mostly have that moisture content is high, be difficult storage, make moist perishable, leads to that cost of transportation is big, storage area is big and is processed into
The problems such as this is high.Therefore seek suitable human and animal excreta processing method and there is realistic meaning and Commercial Prospect.
Charcoal be bio-organic materials (biomass) in anoxia or anoxybiotic environment, after high temperature pyrolysis generate consolidates
State product.Can not only be used for the high-quality energy, soil conditioner, also can seal as reducing agent, fertilizer slow release carrier and carbon dioxide
Deposit agent etc., be widely used to carbon fixation and emission reduction, water source purifying, heavy metal adsorption and soil improvement etc., can be to a certain extent
The whole world hot issues deeply concerned such as climate change, environmental pollution and soil function degeneration provide solution.It is in hypoxia ring
Under border, by Pintsch process, timber, grass, corn stalk or other Wastes of Crops carbonization are formed.Though charcoal can as fertilizer,
But its microcellular structure is less, specific surface area is relatively low, and the nutrient retaining to include trace element less, general when therefore using
Need to add other fertilizer.
Content of the invention
It is an object of the invention to provide a kind of charcoal fertilizer of balance fertilizer water distribution.
The technical scheme realizing the object of the invention is:
A kind of charcoal fertilizer of balance fertilizer water distribution, is made up of the raw material of following weight parts:
Charcoal 60-80, compound fertilizer 20-40, fermentation liquid 10-20, additive 15-25.
Described charcoal, is that according to mass ratio, the ratio for 1:3:2 is mixed by corn straw, wheat stalk, rice straw
After conjunction, processing to moisture through dry in the sun is 20-30%, then extruder grain and retort carbonization form.
Described compound fertilizer, be ammonium nitrate phosphorus, sodium silicate, copper sulfate, iron chloride according to mass ratio the ratio for 2:1:1.5:1
It is mixed.
Described fermentation liquid, is made up of the raw material of following weight parts: fresh Entermorpha 80-100, peat soil 10-15, Mussel Powder
25-35, molasses 18-22；Its preparation method is: smashs to pieces after fresh Entermorpha is cleaned and mixes with peat soil, Mussel Powder, molasses,
Putting into the regulation water content that adds water in fermentation vat is 42-48%, then to inoculating complex microorganism microbial inoculum in fermented product, will ferment afterwards
Thing stirs and starts to ferment, and every turning in 2-4 days once, and measures fermentation heap temperature simultaneously, controls fermentation heap maximum temperature
Less than 72 DEG C, ferment 24-26 days, after becoming thoroughly decomposed completely, fermentation liquid is obtained to fermentation heap squeeze and filter.
Described complex micro organism fungicide includes Rhizopus oryzae, bacillus subtilises and Bacillus cercuses, shared mass ratio
For 1:2:2.
After described additive is plant ash water dissolution, adjusts ph to 8.3-8.5 with ammonia, then filter, lyophilization
The material obtaining.
The preparation method of the charcoal fertilizer of above-mentioned balance fertilizer water distribution, comprises the steps:
(1) weigh raw material according to described ratio, and by described raw material mix homogeneously, obtain compound；
(2) described compound is sent in cracking apparatus, be warming up to 250-260 DEG C, keep this temperature 13-15min, Ran Hou
It is warming up to 450-460 DEG C in 4min, and keeps this temperature 3-4h, be then chilled to 170-180 DEG C in 4min, keep this temperature
44-50min, natural cooling, obtain final product product.
Advantages of the present invention is: charcoal fertilizer of the present invention, is with agricultural crop straw as raw material components, its raw material adopting
Straw is with low cost, and source is easy to get, and is processed by dehydration deoxygenation and pulverizes the biological powdered carbon of formation, carbonization through high temperature carbonization mode
Effect is good, carbon content more than 25%, effectively increases the carbonization degree of straw, charcoal fertilizer high yield rate, application effect is good, and can be passivated
Heavy metal in soil, improves the vigor of soil microorganism.And there is larger specific surface area, the organic matter that improve soil contains
Amount；As low cost non-chemically fertilizer, product of the present invention can be the guarantee in organic agriculture, green agriculture offer yield, system
Preparation Method simple, controlled, easy enforcement, the human and animal excreta and while biomass in effective process, have than traditional biological charcoal fertilizer
Higher absorption property and the fertilizer efficiency of Geng Gao, can replace chemical fertilizer application within the specific limits, have the prospect of industrialization promotion,
And significant economic benefit, environmental benefit and social benefit.
Specific embodiment
The present invention is further described with reference to embodiments, but the invention is not limited in these embodiments.
Embodiment 1
A kind of charcoal fertilizer of balance fertilizer water distribution, is made up of the raw material of following weight parts:
Charcoal 60kg, compound fertilizer 20kg, fermentation liquid 10kg, additive 15kg.
Described charcoal, is that according to mass ratio, the ratio for 1:3:2 is mixed by corn straw, wheat stalk, rice straw
After conjunction, processing to moisture through dry in the sun is 20%, then extruder grain and retort carbonization form.
Described compound fertilizer, be ammonium nitrate phosphorus, sodium silicate, copper sulfate, iron chloride according to mass ratio the ratio for 2:1:1.5:1
It is mixed.
Described fermentation liquid, is made up of the raw material of following weight parts: fresh Entermorpha 80kg, peat soil 10kg, Mussel Powder
25kg, molasses 18kg；Its preparation method is: smashs to pieces after fresh Entermorpha is cleaned and mixes with peat soil, Mussel Powder, molasses, throws
The regulation water content that enters to add water in fermentation vat is 42%, then to inoculating complex microorganism microbial inoculum in fermented product, stirs fermented product afterwards
Mix and uniformly start to ferment, every turning in 2 days once, and measure fermentation heap temperature simultaneously, control 70 DEG C of fermentation heap maximum temperature, send out
Ferment 24 days, obtains fermentation liquid to fermentation heap squeeze and filter after becoming thoroughly decomposed completely.
Described complex micro organism fungicide includes Rhizopus oryzae, bacillus subtilises and Bacillus cercuses, shared mass ratio
For 1:2:2.
After described additive is plant ash water dissolution, adjusts ph to 8.3 with ammonia, then filter, lyophilization obtains
Material.
The preparation method of the charcoal fertilizer of above-mentioned balance fertilizer water distribution, comprises the steps:
(1) weigh raw material according to described ratio, and by described raw material mix homogeneously, obtain compound；
(2) described compound is sent in cracking apparatus, be warming up to 250 DEG C, keep this temperature 13min, then rise in 4min
Temperature, to 450 DEG C, and keeps this temperature 3h, is then chilled to 170 DEG C in 4min, keeps this temperature 44min, natural cooling, that is,
Obtain product.
Embodiment 2
A kind of charcoal fertilizer of balance fertilizer water distribution, is made up of the raw material of following weight parts:
Charcoal 70kg, compound fertilizer 30kg, fermentation liquid 15kg, additive 20kg.
Described charcoal, is that according to mass ratio, the ratio for 1:3:2 is mixed by corn straw, wheat stalk, rice straw
After conjunction, processing to moisture through dry in the sun is 25%, then extruder grain and retort carbonization form.
Described compound fertilizer, be ammonium nitrate phosphorus, sodium silicate, copper sulfate, iron chloride according to mass ratio the ratio for 2:1:1.5:1
It is mixed.
Described fermentation liquid, is made up of the raw material of following weight parts: fresh Entermorpha 90kg, peat soil 12kg, Mussel Powder
30kg, molasses 20kg；Its preparation method is: smashs to pieces after fresh Entermorpha is cleaned and mixes with peat soil, Mussel Powder, molasses, throws
The regulation water content that enters to add water in fermentation vat is 45%, then to inoculating complex microorganism microbial inoculum in fermented product, stirs fermented product afterwards
Mix and uniformly start to ferment, every turning in 3 days once, and measure fermentation heap temperature simultaneously, control 71 DEG C of fermentation heap maximum temperature, send out
Ferment 25 days, obtains fermentation liquid to fermentation heap squeeze and filter after becoming thoroughly decomposed completely.
Described complex micro organism fungicide includes Rhizopus oryzae, bacillus subtilises and Bacillus cercuses, shared mass ratio
For 1:2:2.
After described additive is plant ash water dissolution, adjusts ph to 8.4 with ammonia, then filter, lyophilization obtains
Material.
The preparation method of the charcoal fertilizer of above-mentioned balance fertilizer water distribution, comprises the steps:
(1) weigh raw material according to described ratio, and by described raw material mix homogeneously, obtain compound；
(2) described compound is sent in cracking apparatus, be warming up to 255 DEG C, keep this temperature 14min, then rise in 4min
Temperature, to 455 DEG C, and keeps this temperature 3.5h, is then chilled to 175 DEG C in 4min, keeps this temperature 47min, natural cooling,
Obtain final product product.
Embodiment 3
A kind of charcoal fertilizer of balance fertilizer water distribution, is made up of the raw material of following weight parts:
Charcoal 80kg, compound fertilizer 40kg, fermentation liquid 20kg, additive 25kg.
Described charcoal, is that according to mass ratio, the ratio for 1:3:2 is mixed by corn straw, wheat stalk, rice straw
After conjunction, processing to moisture through dry in the sun is 30%, then extruder grain and retort carbonization form.
Described compound fertilizer, be ammonium nitrate phosphorus, sodium silicate, copper sulfate, iron chloride according to mass ratio the ratio for 2:1:1.5:1
It is mixed.
Described fermentation liquid, is made up of the raw material of following weight parts: fresh Entermorpha 100kg, peat soil 15kg, Mussel Powder
35kg, molasses 22kg；Its preparation method is: smashs to pieces after fresh Entermorpha is cleaned and mixes with peat soil, Mussel Powder, molasses, throws
The regulation water content that enters to add water in fermentation vat is 48%, then to inoculating complex microorganism microbial inoculum in fermented product, stirs fermented product afterwards
Mix and uniformly start to ferment, every turning in 4 days once, and measure fermentation heap temperature simultaneously, control 72 DEG C of fermentation heap maximum temperature, send out
Ferment 26 days, obtains fermentation liquid to fermentation heap squeeze and filter after becoming thoroughly decomposed completely.
Described complex micro organism fungicide includes Rhizopus oryzae, bacillus subtilises and Bacillus cercuses, shared mass ratio
For 1:2:2.
After described additive is plant ash water dissolution, adjusts ph to 8.5 with ammonia, then filter, lyophilization obtains
Material.
The preparation method of the charcoal fertilizer of above-mentioned balance fertilizer water distribution, comprises the steps:
(1) weigh raw material according to described ratio, and by described raw material mix homogeneously, obtain compound；
(2) described compound is sent in cracking apparatus, be warming up to 260 DEG C, keep this temperature 15min, then rise in 4min
Temperature, to 460 DEG C, and keeps this temperature 4h, is then chilled to 180 DEG C in 4min, keeps this temperature 50min, natural cooling, that is,
Obtain product.
Above example only in order to technical scheme to be described, is not intended to limit；Although with reference to the foregoing embodiments
The present invention has been described in detail, it will be understood by those within the art that: it still can be to aforementioned each enforcement
Technical scheme described in example is modified, or carries out equivalent to wherein some technical characteristics；And these modification or
Replace, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (6)
1. a kind of charcoal fertilizer of balance fertilizer water distribution it is characterised in that: be made up of the raw material of following weight parts: charcoal 60-
80th, compound fertilizer 20-40, fermentation liquid 10-20, additive 15-25；
The preparation method of the charcoal fertilizer of above-mentioned balance fertilizer water distribution, comprises the steps:
(1) weigh raw material according to described ratio, and by described raw material mix homogeneously, obtain compound；
(2) described compound is sent in cracking apparatus, be warming up to 250-260 DEG C, keep this temperature 13-15min, Ran Hou
It is warming up to 450-460 DEG C in 4min, and keeps this temperature 3-4h, be then chilled to 170-180 DEG C in 4min, keep this temperature
44-50min, natural cooling, obtain final product product.
2. balance fertilizer water distribution according to claim 1 charcoal fertilizer it is characterised in that: described charcoal, be by
Corn straw, wheat stalk, rice straw according to mass ratio for 1:3:2 ratio mixing after, process to moisture through dry in the sun
Content is 20-30%, then extruder grain and retort carbonization form.
3. balance fertilizer water distribution according to claim 1 charcoal fertilizer it is characterised in that: described compound fertilizer, is nitric acid
The ratio for 2:1:1.5:1 is mixed according to mass ratio for ammonium phosphorus, sodium silicate, copper sulfate, iron chloride.
4. balance fertilizer water distribution according to claim 1 charcoal fertilizer it is characterised in that: described fermentation liquid, be by under
The raw material stating weight portion is made: fresh Entermorpha 80-100, peat soil 10-15, Mussel Powder 25-35, molasses 18-22；Its preparation side
Method is: smashs to pieces after fresh Entermorpha is cleaned and mixes with peat soil, Mussel Powder, molasses, puts into the regulation that adds water in fermentation vat aqueous
Measure as 42-48%, then to inoculating complex microorganism microbial inoculum in fermented product, fermented product stirs start to ferment afterwards, every
Turning in 2-4 days once, and measures fermentation heap temperature simultaneously, controls fermentation heap maximum temperature to be less than 72 DEG C, ferments 24-26 days,
After becoming thoroughly decomposed completely, fermentation liquid is obtained to fermentation heap squeeze and filter.
5. balance fertilizer water distribution according to claim 1 charcoal fertilizer it is characterised in that: described complex micro organism fungicide
Including Rhizopus oryzae, bacillus subtilises and Bacillus cercuses, shared mass ratio is 1:2:2.
6. balance fertilizer water distribution according to claim 1 charcoal fertilizer it is characterised in that: described additive be plant ash
After water dissolution, adjust ph to 8.3-8.5 with ammonia, then filter, the material that lyophilization obtains.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610686345.6A CN106365713A (en) | 2016-08-19 | 2016-08-19 | Biochar fertilizer with effect of balancing fertilizer-water distribution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610686345.6A CN106365713A (en) | 2016-08-19 | 2016-08-19 | Biochar fertilizer with effect of balancing fertilizer-water distribution |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106365713A true CN106365713A (en) | 2017-02-01 |
Family
ID=57878067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201610686345.6A Withdrawn CN106365713A (en) | 2016-08-19 | 2016-08-19 | Biochar fertilizer with effect of balancing fertilizer-water distribution |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107226734A (en) * | 2017-02-14 | 2017-10-03 | 田会涛 | A kind of anti-continuous cropping carbon enzyme functional fertilizer method of preparation and use |
| CN107935671A (en) * | 2017-10-23 | 2018-04-20 | 青岛农业大学 | Compound charcoal base manure of a kind of iron silicon humus and preparation method thereof and application method |
| CN109534929A (en) * | 2018-12-27 | 2019-03-29 | 天津亚德尔生物质科技股份有限公司 | A kind of charcoal mixed fertilizer reducing surface soil alkalinity |
| CN109704820A (en) * | 2019-03-07 | 2019-05-03 | 天津市实验林场 | A method of greenhouse soil is improved using charcoal |
| CN113016562A (en) * | 2021-03-15 | 2021-06-25 | 浙江海洋大学 | Ecological soil based on mussel shell 'sponge' and preparation thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103922831A (en) * | 2014-05-08 | 2014-07-16 | 赵月 | Biochar fertilizer and preparing method thereof |
| CN105016898A (en) * | 2015-08-03 | 2015-11-04 | 北京科技大学 | Biochar fertilizer with concentrated biogas slurry and preparation method thereof |
| CN105061032A (en) * | 2015-07-30 | 2015-11-18 | 合肥旭腾环保科技有限公司 | Nitrogen-rich nitrogen fixation wheat straw biochar fertilizer and preparation method thereof |
| CN105110897A (en) * | 2015-07-30 | 2015-12-02 | 合肥旭腾环保科技有限公司 | Wheat straw biochar fertilizer for balancing soil fertility distribution and preparation method for wheat straw biochar fertilizer |
| CN105110896A (en) * | 2015-07-30 | 2015-12-02 | 合肥旭腾环保科技有限公司 | Wheat straw biochar fertilizer for reducing nutrient loss and preparation method for wheat straw biochar fertilizer |
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2016
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103922831A (en) * | 2014-05-08 | 2014-07-16 | 赵月 | Biochar fertilizer and preparing method thereof |
| CN105061032A (en) * | 2015-07-30 | 2015-11-18 | 合肥旭腾环保科技有限公司 | Nitrogen-rich nitrogen fixation wheat straw biochar fertilizer and preparation method thereof |
| CN105110897A (en) * | 2015-07-30 | 2015-12-02 | 合肥旭腾环保科技有限公司 | Wheat straw biochar fertilizer for balancing soil fertility distribution and preparation method for wheat straw biochar fertilizer |
| CN105110896A (en) * | 2015-07-30 | 2015-12-02 | 合肥旭腾环保科技有限公司 | Wheat straw biochar fertilizer for reducing nutrient loss and preparation method for wheat straw biochar fertilizer |
| CN105016898A (en) * | 2015-08-03 | 2015-11-04 | 北京科技大学 | Biochar fertilizer with concentrated biogas slurry and preparation method thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107226734A (en) * | 2017-02-14 | 2017-10-03 | 田会涛 | A kind of anti-continuous cropping carbon enzyme functional fertilizer method of preparation and use |
| CN107935671A (en) * | 2017-10-23 | 2018-04-20 | 青岛农业大学 | Compound charcoal base manure of a kind of iron silicon humus and preparation method thereof and application method |
| CN109534929A (en) * | 2018-12-27 | 2019-03-29 | 天津亚德尔生物质科技股份有限公司 | A kind of charcoal mixed fertilizer reducing surface soil alkalinity |
| CN109704820A (en) * | 2019-03-07 | 2019-05-03 | 天津市实验林场 | A method of greenhouse soil is improved using charcoal |
| CN113016562A (en) * | 2021-03-15 | 2021-06-25 | 浙江海洋大学 | Ecological soil based on mussel shell 'sponge' and preparation thereof |
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Application publication date: 20170201 |