CN104387136B - Method for producing organic fertilizer from municipal dry branch/fallen leaf waste and application thereof - Google Patents
Method for producing organic fertilizer from municipal dry branch/fallen leaf waste and application thereof Download PDFInfo
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- CN104387136B CN104387136B CN201410623356.0A CN201410623356A CN104387136B CN 104387136 B CN104387136 B CN 104387136B CN 201410623356 A CN201410623356 A CN 201410623356A CN 104387136 B CN104387136 B CN 104387136B
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- 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
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
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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
- 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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Abstract
The invention provides a method for producing an organic fertilizer from municipal dry branch/fallen leaf waste and application thereof. The method comprises the following steps: collecting branches, fallen leaves and other municipal greening wastes, and mixing Aspergillus niger, Saccharomyces cerevisiae, Bacillus subtilis and Trichoderma reesei to obtain a composite microbial inoculant; adding bran coat, chaff powder or peanut hull meal, the composite microbial inoculant, urea and potassium dihydrogen phosphate, thoroughly mixing, piling into a 1.5-2m-high cone, and controlling the water content at 60-70%; carrying out hide lifting on the pile in the composting process, and fermenting for 20-30 days; and carrying out aerobic and anaerobic fermentation on the dry branch/fallen leaf waste by using the microbial inoculant to obtain the organic fertilizer. The preparation technique is simple; and the prepared organic fertilizer can improve the soil and reduce the environmental pollution caused by the waste.
Description
Technical field
The present invention relates to a kind of method that utilization city dry branches and fallen leaves discarded object produces organic fertilizer, the method is to dry branches and fallen leaves
After fermentation process of banking up, greenery patches and sylvan life can be reverted to as fertilizer, can also make flowers and trees cultivation matrix, soil conditioner with solid
Medium is afforested in space, belongs to biological technical field.
Background technology
Greening discarded object, including the trees branch that urban beautification greening and suburb forestry are fostered, produced during pruning fruit tree
Dry, fallen leaves, grass cuttings, flower lose and other lops.With flourishing for China's urban afforestation cause, the annual greening for producing is given up
Gurry total amount is also increasing severely.Processing the approach of these greening discarded objects at present mainly has burning and fills.Burning can cause serious
Air pollution, is prohibited by city；It is that the main path of discarded object is afforested in treatment at present to be filled together with house refuse, but is filled out
The land resource that can take preciousness, and easily polluted underground water are buried, while producing carbon dioxide isothermal chamber gas and hydrogen sulfide etc.
Pernicious gas, threatening environment and health.
The main component for afforesting discarded object is organic matter, is rare organic resource, and it can be carried out at resource
Reason.Branch, leaf, grass cuttings the like waste are banked up, through the fermentation process of microbial bacterial agent after, can be reduced as soil conditioner
To in sylvan life and greenery patches, applicable fertile soil can be provided for urban green space even agricultural production, can also make botanical seedling culturing, flowers and plant
The nutrient matrix of training.So dry branches and fallen leaves is fabricated to organic fertilizer, the low-carbon environment-friendly behave for be Resource Recycling Utilization, turning waste into wealth
One of.
Some researchers have reported that manufacturing organic fertilizer to Urban fallen leaves the like waste recycling treatment.Wang Jingqing is carried out
《Utilizing for fallen leaves discarded object is inquired into》, the greening discarded object such as branch fallen leaves, lop of collection is crushed, add appropriate horse
Excrement, ferrous sulfate and bactericide, to afforesting, discarded object is full and uniform to become thoroughly decomposed；It is good in the autumn《Artificial compost is micro- with leaf-fall
Biological and environmental characteristic difference》Research, carries out thin grass, leaf, water, lime, nitrogenous fertilizer, mud, fine earth etc. artificial compost and becomes thoroughly decomposed；
Wang Jindan etc.《The discussion of afforestation utilization of waste as resource》, hack, afforestation discarded object and excrement are mixed, water
Excrement is dilute, and fermentation reactor system produces organic fertilizer.Chinese patent《City branch, leaf Comprehensive recycle technology》(102919519A) is public
A kind of city branch, leaf Comprehensive recycle technology are opened, by deadwood dead leaf, plant ash, branch class garbage carbonized generation
Charcoal powder, being equipped with animal manure carries out mixed fermentation, is made organic fertilizer；《It is a kind of to make organic fertilizer as raw material with eucalyptus barks and leaf
Method》(102531719A) disclose it is a kind of with eucalyptus barks and leaf be 70~90% raw materials make organic fertilizer method；《It is organic
Fertilizer and preparation method thereof》(102010239A) is disclosed with garden waste and oil cake, white sugar, leavening, urea and zeolite powder
The method of mixing organic fertilizer processed；《It is the method for organic fertilizer that a kind of gardens dry branches and fallen leaves becomes thoroughly decomposed and ferments》(201210275410.8) it is public
Open and add in the mixture of dry branches and fallen leaves raw cow dung, mixed, added fermenting agent, the method for fermentation of becoming thoroughly decomposed of banking up；《One kind falls
The preparation method of leaf organic fertilizer》(103771963A) is disclosed earthing compost of falling leaves, and spontaneous fermentation needs become thoroughly decomposed for 6-12 month
The method for obtaining organic fertilizer；《A kind of biological organic fertilizer and preparation method thereof》(201110332282.1) disclose will fallen leaves with it is organic
Fertilizer, urea, humic acid, stalk ashes, potassium chloride, nano-calcium carbonate calcium powder, trace-element fertilizer, datura flower plant meal and life
Thing potash fertilizer is by certain part by weight mixing, ferment making organic fertilizer；《A kind of biological active fertilizer with poplar-branch and fallen leaves as raw material
Material and application process》(CN201310380093.0) biological activity fertilizer with poplar-branch and fallen leaves as raw material is disclosed to make
Method；《A kind of organic fertilizer and preparation method thereof》(201110174724.4) disclose by garden waste, fermenting agent, wine
Slag, turf, kitchen waste, urea prepare organic fertilizer；《The technique that a kind of utilization rubbish produces biological organic fertilizer》
(201010255343.4) disclose by plant defective material, dining table garbage, animal wastes and phosphorus decomposing, potassium decomposing compound bio agent fermentation system
Standby organic fertilizer.
Above-mentioned report and patent show that city dry branches and fallen leaves discarded object can be converted into organic fertilizer in the presence of microorganism,
But the auxiliary materials such as dining table garbage, excrement, mud, turf are with the addition of in the fermentation process that becomes thoroughly decomposed having, is not easy to auxiliary during large-scale production
The collection of material and transport；Some auxiliary material additions are more, make product cost higher；Some fermented bacteriums are nature, or two kinds of bacterium
Agent, causes fermentation period more long.
The content of the invention
The main object of the present invention is to provide a kind of method that utilization city dry branches and fallen leaves discarded object produces organic fertilizer, passes through
The fermentation process of multiple-microorganism, carries out compost, fermentation, decomposes and convert to the greening organic waste such as dry branches and fallen leaves, reaches
Become the purpose of high-performance bio fermentation activity organic fertilizer.
It is another object of the present invention to provide a kind of method that utilization city dry branches and fallen leaves discarded object produces organic fertilizer
Application in organic fertilizer is prepared.
In order to achieve the above object, the present invention takes following technical measures：
Thinking of the invention is：With tree limb, fallen leaves, grass cuttings, flower loses and other lops are as raw material, add wheat bran or
Rice husk powder or peanut shell powder, add a small amount of urea and potassium dihydrogen phosphate, adjust suitable carbon-nitrogen ratio and carbon-phosphorus ratio, and be inoculated with black song
Mould, saccharomyces cerevisiae, bacillus subtilis and trichoderma reesei complex micro organism fungicide, build heap fermentation after mixing；In composting process
Turning is carried out according to material temperature, finally becoming thoroughly decomposed is made organic fertilizer.
A kind of method that utilization city dry branches and fallen leaves discarded object produces organic fertilizer, its step is as follows：
(1) dry branches and fallen leaves discarded object surveys its water content through cutting after a machine is acted on pulverizer into 3-5 centimetres of size granularity,
Calculate dry discarded object weight；
(2) dry discarded object weight will be pressed for the complex micro organism fungicide of castoff compost, auxiliary material, urea and potassium dihydrogen phosphate
Amount proportioning is added in discarded object, is then well mixed；
Described complex micro organism fungicide is by 2 by aspergillus niger, saccharomyces cerevisiae, bacillus subtilis and trichoderma reesei:1:
2:2 ratios are mixed, and addition is dry discarded object weight 0.1%-0.2%；
Described auxiliary material is one kind or two kinds or three kinds of mixture in wheat bran, rice husk powder or peanut shell, its addition
It is dry discarded object weight 1%-3%；
The C/N ratios of addition urea regulation raw material are 20:1~30:1；
The C/P ratios of addition potassium dihydrogen phosphate regulation raw material are 75:1~150:1；
(3) add water adjustment water content to 60%~70%；
(4) mix and build heap fermentation, by stockpile into 1.5-2 meters of taper high；
(5) control temperature carries out turning：Material temperature according to compost carries out stirring, supplemental oxygen and radiating, to dry branches and fallen leaves
Discarded object becomes thoroughly decomposed, and changes into organic fertilizer, specially：When start-up temperature is more than 10 DEG C, temperature rises to 60 DEG C of beginning turnings, whole
Individual composting process control temperature is no more than 70 DEG C, and it is organic fertilizer to become thoroughly decomposed within 18-22 days；When start-up temperature is less than 10 DEG C, temperature liter
To 65 DEG C of beginning turnings, whole composting process control temperature is no more than 65 DEG C, and it is organic fertilizer to become thoroughly decomposed within 28-32 days.
It is final to determine 52%-54.6% containing organic matter, nitrogen 1.8%-1.92%, phosphorus pentoxide 1.5%- in product
1.7%, potassium oxide 1.3-1.5%, moisture 30%-35% and pH value 7.0-7.5, as qualified fermented product, described percentage
Than being mass percent.
The process described above, it is preferred that described aspergillus niger is：Aspergillus niger,CCAM 080002；Have
Effect bacteria concentration is 5,000,000,000 cfu/ grams.Saccharomyces cerevisiae is：Saccharomyces cerevisiae, CCAM 080005；Effective bacterium is dense
Spend for 20,000,000,000 cfu/ grams.Bacillus subtilis is：Bacillus subtilis, CCAM 080032；Effective bacteria concentration is 200
Hundred million cfu/ grams.Trichoderma reesei is：Trichoderma reesei, CCAM 080014；Effective bacteria concentration is 5,000,000,000 cfu/ grams.
The content of described organic matter is specially：The content of organic carbon in baking substrate, is multiplied by coefficient 1.724, as has
Machine matter content.
Compared with prior art, the present invention has advantages below：
This project is mainly focused on city dry branches and fallen leaves discarded object using composting mode, is added by auxiliary material and special
The use of fermenting agent (aspergillus niger, saccharomyces cerevisiae, saccharomyces cerevisiae, bacillus subtilis), it is complete by multiple aerobic composting fermentation
Become thoroughly decomposed entirely, make discarded object by being biologically converted into organic fertilizer product.This organic fertilizer through ecology process for producing is free of weeds
Seed, worm's ovum, without harmful chemical composition, compared with traditional chemical fertilizer and refined organic fertilizer, not only with lifting soil
The ability of fertility and drought-resistant water-preserving, moreover it is possible to improve vegetation growth state, helps plant to survive the winter insulation, while having low cost, ring
Protect the advantage such as pollution-free.
1. this method loses and other lops any combination tree limb, fallen leaves, grass cuttings, flower, larger branch more long
Leaf is crushed through cutting branch, into 3-5 centimetres of size, a small amount of auxiliary material such as (1%-3%) wheat bran or rice husk powder or peanut shell powder of addition；
2. this method is mixed in proportion using aspergillus niger, saccharomyces cerevisiae, four kinds of microorganisms of bacillus subtilis and trichoderma reesei
Close, microorganism used has high activity, by suitable proportion (2：1：2：2) it is combined, the dry branches and fallen leaves to hybrid composting is sent out
Ferment, decomposes organic matter in discarded object, produces organic fertilizer；Microbial bacterial agent consumption is smaller (accounting for bacterial manure amount 1-2 ‰), and cost is relatively low；
3. dry branches and fallen leaves discarded object produces 50-65 DEG C of high temperature, without outer naturally through 4 kinds of microorganism aerobics, anaerobic fermentations
Heating source, fully becomes thoroughly decomposed under the high temperature conditions, reaches the standard of organic fertilizer；The supplemental heat source of external heat is not needed, is invested into
This is low.
4. there is positive environmental benefit, the like waste of dry branches and fallen leaves is got utilization, reduce to environment
Pollution.
Specific embodiment
Embodiment of the present invention methods described, if not otherwise specified, is the ordinary skill in the art.The embodiment of the present invention makes
Bacterial strain is as follows：
Aspergillus niger is：Aspergillus niger, from Hua Zhong Agriculture University's agromicrobiology state key experiment
Room, agriculture microorganism germ plasma and genetic resources preservation and center is utilized, numbering is CCAM 080002；Effective bacteria concentration is 5,000,000,000
Cfu/ grams.
Saccharomyces cerevisiae is：Saccharomyces cerevisiae, from agromicrobiology state of Hua Zhong Agriculture University
Key lab of family, agriculture microorganism germ plasma and genetic resources preservation and utilizes center, and numbering is CCAM 080005；Effective bacterium
Concentration is 20,000,000,000 cfu/ grams.
Bacillus subtilis is：Bacillus subtilis, from agromicrobiology country of Hua Zhong Agriculture University weight
Point laboratory, agriculture microorganism germ plasma and genetic resources preservation and utilizes center, and numbering is CCAM 080032；Effective bacteria concentration
For 20,000,000,000 cfu/ grams.
Trichoderma reesei is：Trichoderma reesei, from Hua Zhong Agriculture University's agromicrobiology state key
Laboratory, agriculture microorganism germ plasma and genetic resources preservation and center is utilized, numbering is CCAM 080014；Effective bacteria concentration is
5000000000 cfu/ grams.
Above bacterial strain can be from China Microbiological bacterial strain net (http://www.mum800.com/) buy.
Embodiment 1：
A kind of method that utilization city dry branches and fallen leaves discarded object produces organic fertilizer, its step is as follows：
1st, the dry branches and fallen leaves discarded object such as 1000 kilograms of camphor tree dry branches and fallen leaves that will be concentrated, after cutting a machine and pulverizer effect
Into 3-5 centimetres of size granularity, it is 20% to determine its moisture content；
2nd, 2 are pressed by aspergillus niger, saccharomyces cerevisiae, bacillus subtilis and trichoderma reesei by 0.8 kilogram:1:1:2 (w/w) ratios
The complex micro organism fungicide of mixing, is compounded with 8 kilograms of wheat brans, is well mixed.
It is 20 that 4.0 kilograms of urea and 4.8 kg of phosphoric acid potassium dihydrogens adjustment C/N ratios are added in 1000 kilograms of materials:1, C/P ratio
It is 75:1 mixes with the microbial bacterial agent of compounding.
3rd, the moisture of adjustment dry branches and fallen leaves material is 60%.
4th, material builds heap.Heap, a height of 1.5 meters of heap, taper are built after mixing.
5th, turning oxygen supply.Start-up temperature, when material temperature reaches 60 DEG C, turning, whole fermentation temperature control is carried out to material at 14 DEG C
System is between 60 DEG C -70 DEG C.
6th, fermentation is completed.When material is in dark brown, temperature starts to be down to normal temperature, shows that fermentation is completed.Whole fermentation period
It is 20 days.After fermentation ends, the content of organic matter is 52%, nitrogen 1.8%, phosphorus pentoxide 1.55%, potassium oxide in product
1.35%, moisture 30% and pH value 7.0.
Described dry branches and fallen leaves discarded object be tree limb, fallen leaves, grass cuttings, spend lose and other lops.
Embodiment 2：
A kind of application of method of utilization city dry branches and fallen leaves discarded object production organic fertilizer in organic fertilizer is prepared, its process
It is as follows：
Organic fertilizer using the fermentation maturity of embodiment 1 is used for the plantation of greening lawn
0.5 ton of above-mentioned organic fertilizer for becoming thoroughly decomposed is uniform to impose on 0.07 hectare soil for planting paradise carelessly level ground, turns over, whole
It is flat, sow grass-seed, management of watering.Do simultaneously and compareed without the planting lawn of organic fertilizer.
As a result：The lawn of the organic fertilizer become thoroughly decomposed with dry branches and fallen leaves is in the side such as seed germination, greenness, the speed of growth of grass
Face is substantially better than control (being shown in Table 1), shows：Percentage of seedgermination is improved, chlorophyll content is high, 40 days 3 lis of height difference of growth
Rice or so.
Planting effect (40d) of the organic fertilizer of the present invention system of table 1 to paradise carelessly level ground
Embodiment 3：
A kind of method that utilization city dry branches and fallen leaves discarded object produces organic fertilizer, its step is as follows：
As different from Example 1：Compounding microbial bacterial agent is by aspergillus niger, saccharomyces cerevisiae, withered grass gemma by 1.6 kilograms
Bacillus and trichoderma reesei complex micro organism fungicide, compounding mixing is carried out with 24 kilograms of rice husk powders or 24 kilograms of peanut shell powders；Fermentation
Cycle is 20 days, and remaining condition is same as Example 1.
After fermentation ends, the content of organic matter is 53.5%, nitrogen 1.9%, phosphorus pentoxide 1.6%, potassium oxide in product
1.3%, moisture 35% and pH value 7.3.
Embodiment 4：
A kind of method that utilization city dry branches and fallen leaves discarded object produces organic fertilizer, its step is as follows：
1st, the dry branches and fallen leaves discarded object such as 1000 kilograms of camphor tree dry branches and fallen leaves that will be concentrated, after cutting a machine and pulverizer effect
Into 3-5 centimetres of size granularity, it is 30% to measure its water content, and the weight for calculating siccative is 700 kilograms.
2nd, 2 are pressed by aspergillus niger, saccharomyces cerevisiae, bacillus subtilis and trichoderma reesei by 1.4 kilograms:2:1:2 ratios mix
Complex micro organism fungicide, compounded with 14 kilograms of wheat brans, be well mixed.
Adjustment C/N and C/P.3.5 kilograms of urea and 4.2 kg of phosphoric acid potassium dihydrogens are added in 1000 kilograms of materials, makes material
C/N ratios are 20 during fermentation:1, C/P ratio is 75:1, add the microbial bacterial agent of compounding.
3. the moisture of adjustment dry branches and fallen leaves material is 60%.
4. material builds heap, a height of 2.0 meters of heap, taper.
5. turning oxygen supply, stirring is carried out in composting fermentation process according to material temperature, increases oxygen supply with radiating, and start-up temperature exists
8 DEG C, when material temperature reaches 65 DEG C, turning need to be carried out to material, whole fermentation temperature control is at 60 DEG C -65 DEG C.
6. fermentation is completed.When material is in dark brown, temperature starts to be down to 20 DEG C, shows that fermentation is completed.Whole fermentation period
It is 30 days.
After fermentation ends, the content of organic matter is 52.8%, nitrogen 1.88%, phosphorus pentoxide 1.52%, potassium oxide in product
1.45%, moisture 32% and pH value 7.2.
Embodiment 5：
As different from Example 4：Compounding microbial bacterial agent is by aspergillus niger, saccharomyces cerevisiae, withered grass gemma by 1.4 kilograms
Bacillus and trichoderma reesei complex micro organism fungicide, compounding mixing is carried out with 21 kilograms of rice husk powders or 21 kilograms of peanut shell powders；Fermentation
Cycle is 25 days, and remaining condition is same as Example 4.
After fermentation ends, the content of organic matter is 54.6%, nitrogen 1.92%, phosphorus pentoxide 1.6%, potassium oxide in product
1.5%, moisture 35% and pH value 7.5.
Claims (2)
1. a kind of method that utilization city dry branches and fallen leaves discarded object produces organic fertilizer, its step is as follows：
(1) dry branches and fallen leaves discarded object surveys its water content through cutting after a machine is acted on pulverizer into 3-5 centimetres of size granularity, calculates
Dry discarded object weight；
(2) complex micro organism fungicide, auxiliary material, urea and potassium dihydrogen phosphate are added to discarded object by dry discarded object weight proportion
In, then it is well mixed；
Described complex micro organism fungicide is to be in mass ratio by aspergillus niger, saccharomyces cerevisiae, bacillus subtilis and trichoderma reesei
2:1:2:2 ratios are mixed, and addition is dry discarded object weight 0.1%-0.2%；Described aspergillus niger is：
Aspergillus niger, CCAM080002, effective bacteria concentration are 5,000,000,000 cfu/ grams；Saccharomyces cerevisiae is：Saccharomyces
Cerevisiae, CCAM 080005, effective bacteria concentration is 20,000,000,000 cfu/ grams；Bacillus subtilis is：Bacillus
Subtilis, CCAM 080032, effective bacteria concentration is 20,000,000,000 cfu/ grams；Trichoderma reesei is：Trichoderma reesei,
CCAM 080014, effective bacteria concentration is 5,000,000,000 cfu/ grams；
Described auxiliary material is one kind or two kinds or three kinds of mixture in wheat bran, rice husk powder or peanut shell, and its addition is dry
Discarded object weight 1%-3%；
The C/N ratios of addition urea regulation raw material are 20:1~30:1；
The C/P ratios of addition potassium dihydrogen phosphate regulation raw material are 75:1~150:1；
(3) add water adjustment water content to 60%~70%；
(4) mix and build heap fermentation, by stockpile into 1.5-2 meters of taper high；
(5) control temperature carries out turning：Material temperature according to compost carries out stirring, supplemental oxygen and radiating, discarded to dry branches and fallen leaves
Thing becomes thoroughly decomposed, and changes into organic fertilizer；Specially：When start-up temperature is more than 10 DEG C, temperature rises to 60 DEG C of beginning turnings, whole heap
Fertile process control temp is no more than 70 DEG C, and it is organic fertilizer to become thoroughly decomposed within 18-22 days；When start-up temperature is less than 10 DEG C, temperature rises to 65
DEG C start turning, whole composting process control temperature is no more than 65 DEG C, and it is organic fertilizer to become thoroughly decomposed within 28-32 days；
It is final to determine 52%-54.6% containing organic matter, nitrogen 1.8%-1.92%, phosphorus pentoxide 1.5%-1.7%, oxygen in product
Change potassium 1.3-1.5%, moisture 30%-35% and pH value 7.0-7.5, as qualified fermented product.
2. application of the method described in claim 1 in organic fertilizer is prepared.
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| CN201410623356.0A CN104387136B (en) | 2014-11-06 | 2014-11-06 | Method for producing organic fertilizer from municipal dry branch/fallen leaf waste and application thereof |
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| CN201410623356.0A CN104387136B (en) | 2014-11-06 | 2014-11-06 | Method for producing organic fertilizer from municipal dry branch/fallen leaf waste and application thereof |
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| CN104387136B true CN104387136B (en) | 2017-05-24 |
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| JP2000239084A (en) * | 1998-12-24 | 2000-09-05 | Ryokuei:Kk | Method of composting branches and leaves of trees and branch and leaf compost |
| CN101306961B (en) * | 2008-07-08 | 2010-12-29 | 上海市园林科学研究所 | Production process of garden plant waste compost bacterium and uses thereof |
| CN102276325A (en) * | 2011-06-27 | 2011-12-14 | 天津天保园林环卫发展有限公司 | Organic fertilizer and preparation method thereof |
| CN102382768A (en) * | 2011-09-29 | 2012-03-21 | 武汉施瑞福生物技术有限公司 | Microbial straw decomposition additive as well as preparation method and application thereof |
| CN103570389A (en) * | 2012-08-03 | 2014-02-12 | 天津市北方园林生态科学技术研究所 | Method for decomposing and fermenting garden dry branches and fallen leaves into organic fertilizer |
| CN103771963A (en) * | 2012-10-24 | 2014-05-07 | 大连鹤菲英博科技有限公司 | Preparation method of fallen leaf organic fertilizer |
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