CN104892143B - Biological organic fertilizer and preparation method thereof - Google Patents
Biological organic fertilizer and preparation method thereof Download PDFInfo
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- CN104892143B CN104892143B CN201510265283.7A CN201510265283A CN104892143B CN 104892143 B CN104892143 B CN 104892143B CN 201510265283 A CN201510265283 A CN 201510265283A CN 104892143 B CN104892143 B CN 104892143B
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Abstract
The present invention discloses a kind of biological organic fertilizer and preparation method thereof, it is related to technical field of fertilizers, its raw material is with the paper mill sludge 50~60% of butt calculating, sugarcane top 20~30%, poultry hair 6~10%, epidesmine 5~8%, rock phosphate in powder 5.5~7%, bioactivity microbial inoculum 0.5~0.7%, nitric acid rare earth 0.1~0.15%, fulvic acid 0.2~0.5%, compound sodium nitrophenolate 0.05 0.08%, composite trace element 0.3~0.5%；Preparation method adds stacking after rock phosphate powder, epidesmine powder and poultry Mao Fenyu bioactivity microbial inoculums are mixed and ferments, then add nitric acid rare earth for paper mill sludge is mixed with sugarcane caudal lobe, fulvic acid, compound sodium nitrophenolate, composite trace element, discharging is dried after being mixed dries granulation again；Organic materials and inorganic material are combined by the present invention, and inter-compatibility is good between each nutrient, is easily absorbed by crops, and has the function that antibacterial disease-resistant, regulating crop growth.
Description
Technical field
The present invention relates to technical field of fertilizers, especially a kind of biological organic fertilizer and preparation method thereof.
Background technology
Fertilizer is that the important substance for developing high yield and high quality agricultural ensures that many agriculturals will increase using chemical fertilizer or organic fertilizer
Add soil fertility, although chemical fertilizer has production-increasing function, but contain a variety of chemical compositions for being unfavorable for human body and environment, causes crops
Quality decline, makes the hardening soil, and soil fertility declines, and human survival and health is subject to great threat.
Existing biological organic fertilizer does not carry out scientific allocation, corruption there are error rate in terms of proportioning is big according to practical application
Ripe fermentation is nonstandard, and strain selection is improper etc., is burnt so as to cause the more or less presence of existing bio-organic fertilizer product to burn root
Phenomena such as seedling.
Paper industry produces substantial amounts of paper waste during pulping and paper-making, from different workshop sections.By one section and two
The water process of section generates substantial amounts of paper mill sludge, according to statistics, often produces 1 ton of paper and about produces 6.5m3Dilute sludge of 10% concentration, this
Sludge is even across mechanical dehydration, and paper mill sludge water content is also difficult to be less than 60%, often in mud state.But papermaking is dirty
In mud in addition to substantial amounts of fiber fines, also containing nutrient and the middle trace element such as abundant organic matter, N, P, K.Papermaking is dirty
Dephosphorization and potassium are relatively low outer in mud, and organic matter and total nitrogen content are apparently higher than general farm manure, and a more importantly huge sum of money
Belong to content and be below what China promulgated for 1984《Agricultural sludge pollutant catabolic gene standard》(GB4284- 84), paper mill sludge
Agricultural heavy metal free pollution risk, so paper mill sludge is a kind of Organic Fertilizer Resources of high quality and at a reasonable price.
In long-term phosphorus ore recovery process, adopting richness, to abandon poor phenomenon very serious, estimates according to the insiders, often picks up 1 ton of height
For grade phosphorus mine stone it is necessary to lose 8 tons of lean ores, wasting of resources phenomenon is serious.Although open source information is shown, the Chinese phosphorus ore reserves world
Second, still, in China's phosphate rock resource, mid low grade phosphate rock reserves account for the 97.5% of phosphorus ore gross reserves, wherein more than 85%
Mid low grade phosphate rock belong to appositional pattern collophane again, possess the average grade (P of resource reserve2O5Content) it is 16.95%.Allow state
The limited resource of family obtains good synthetical recovery and utilization, should become the common recognition of society.
China is cultivation big country in the world, and the yield of chicken and duck goose feather and pig hair is increasing, there is millions of tons of originals every year
Expect source.Hair is a kind of keratin, is the good raw material for producing natural amino acid, wherein L- Guangs ammonia containing nearly 20 kinds of amino acid
Acid content highest, as pig hair contains about 14%, while also containing a variety of amino acid such as tyrosine, arginine, leucine.So
Be conducive to improve the utility value of raw material from family's poultry acquisition amino acid, really realize comprehensive utilization, zero-emission no pollution.
Guangxi is China sugarcane major production areas, and all production has substantial amounts of sugarcane caudal lobe every year, through annual 10000000 tons of originals of output
Expect sugarcane, 5% sugarcane caudal lobe meter of subsidiary output per ton, sugarcane caudal lobe will be up to 500,000 tons, and the most common method of disposal of sugarcane grower is by sugarcane
Leaf is burnt up on the spot.Although sugarcane field fertility can be increased to a certain extent by so doing, burn weeds pest to death, be easy to cause environment
Pollution, while also result in the significant wastage of resource.
The content of the invention
Problem to be solved by this invention is to provide one kind and can be very good using in paper mill sludge, sugarcane top, poultry hair
Biological organic fertilizer of nutritional ingredient being rich in and preparation method thereof.
In order to solve the above-mentioned technical problem, the technical solution adopted in the present invention is：It by following weight percents original
Material is made：
The paper mill sludge 50-60% in terms of butt, sugarcane top 20-30%, poultry hair 6-10%, epidesmine 5-8%, rock phosphate in powder
5.5-7%, bioactivity microbial inoculum 0.5-0.7%, nitric acid rare earth 0.1~0.15%, fulvic acid 0.2-0.5%, compound sodium nitrophenolate 0.05-
0.08%, composite trace element 0.3-0.5%.
In above-mentioned technical proposal, more specifically scheme can also be：The composite trace element include zinc sulfate, borax,
Manganese sulfate, ammonium molybdate, magnesium sulfate.
In above-mentioned technical proposal, its preparation process is：
A, first the drying of sugarcane caudal lobe is done to water content≤10%, the short section for then cutting into 1cm~2cm long is spare；
B, rock phosphate in powder selects phosphorus chemical industry to discard corner material, belongs to low-grade phosphorus, and P2O5 contents are not less than 17.0%, is ground into thin
Powder；Epidesmine is natural crystal, through mechanical crushing fine powder；
C, dry, mechanical crushing is spare to powder through drying for poultry hair；
D, take water content be 75-80% paper mill sludge, with step A made from sheath of sugarcane blade mix, make containing for mixture
Water rate is controlled in 55%-60%, adds poultry hair made from step C, rock phosphate powder made from step B and epidesmine powder and life
Thing active microbial inoculum is uniformly mixed；
Step D gains are made to bottom is 1.5-2.0 meters wide, high 1 meter of strip stacking, under conditions of forced ventilation E,
Handled through static pile formula aerobic compost；Fertile heap carries out more than 60 °C hot fermentations, and turning number is depending on temperature in heap, daily
Temperature in heap is monitored, control temperature is not higher than 70 °C, turning is carried out in the case of overtemperature, to turn over thoroughly uniformly, fermentation time 28-
30 days；
F, the fermentate obtained by step E is added into nitric acid rare earth, fulvic acid, compound sodium nitrophenolate, composite trace element, blending is
After even, discharge, after outdoor naturally dry, obtain finished product paper mill sludge compost；
G, finished product paper mill sludge compost is dried, then is sieved, is granulated and packed successively.
Further：In step B, the rock phosphate in powder crosses 60 mesh sieves after crushing, and the epidesmine crosses 60 mesh sieves after crushing；
In step C, the poultry hair crosses 50 mesh sieves after crushing；In D steps, the paper mill sludge starches paper mill sludge for fresh chemical.
The described epidesmine of invention（Stellerite）Its structure is aqueous rack-like aluminosilicate, its chemical composition
（%）：SiO258.76、Al2O314.13、CaO8.80、K2O 0.11、Na2O 0.18、Fe2O30.44、H2O+16.87、H2O-1.25
Calculating chemical formula is：（K0 . 017 Na0. 042 Ca1. 13 ) 1. 189 [ Al1. 997 Si7. 05 O18 ] ·6. 75H2O）.Naturally
Epidesmine is a kind of aluminium silicate mineral of aqueous alkali or alkaline earth metal, by oxygen-octahedron and aluminum-oxygen tetrahedron group
Into tectosilicate, have many open cavities and passage inside mineral, there is very strong gas sorption ability.Utilize day
There is right zeolite loose structure and strong absorption property can manufacture controlled availability fertilizer and continuation fertilizer, i.e., adds zeolite powder
The gas and ammonium ion etc. such as ammonia nitrogen are adsorbed in fertilizer, greatly reduces distributing for such as gas odorous gas in bio-fertilizer composting process,
Reduce environmental pollution.Make fertilizer from being lost at the same time.Soil improvement action can be played at the same time.
Substantial amounts of acid can be produced in sludge composting fermentation process, causes the decline of fertile heap pH value, so as to suppress microorganism
Fermentation activity, adds ground phosphate rock thereto, can neutralize the acid produced in fermentation, is conducive to increase biological bacteria activity, itself also turns
Become titanium pigment, increase available phosphorus and water-soluble phosphorus content in product；Ground phosphate rock can also be reduced in sludge to some extent
The activity of heavy metal, further reduces the content of heavy metal in product.
Scientific investigations showed that rare earth element has the growth course of various industrial crops very strong stimulation, can increase
Strong photosynthesis, improves chlorophyll content, is the absorption to nutrient, and be improved sulfatase active function；Crop is to blade
Spray or the amino acid of pouring root administration has very high absorption, transport and Utilization ability.
The present invention has the advantages that compared with other patent families：
1st, biological organic fertilizer of the invention is using paper mill sludge, sugarcane caudal lobe and poultry hair and rock phosphate powder as main former
Material is made through everfermentation, while nitric acid rare earth is added in fermentate, other balanced essential trace elements, have accomplished organic materials
With the harmony of inorganic material, there are ten several nutritious extracts China needed for plant growth, rich in active peptide, L- amino acid, together
When further included nitre state, ammonium state, amidonitrogen, it is rapid available phosphorus, potassium and inorganic elements iron, manganese, zinc, magnesium, rare earth, copper, boron, yellow rotten
Acid, beneficial bacterium, plant regulation agent etc., inter-compatibility is good between each nutrient, is easily absorbed by crops utilization, have it is antibacterial it is disease-resistant, carry
The effect of high plant body immunity function, regulating crop growth.
2nd, comprehensive comprehensive utilization of resources.From paper mill sludge, to sugarcane caudal lobe, poultry hair and low-grade phosphate ore stone, all it is
Caused waste product or accessory substance, are obtained for sufficient utilization in the present invention in industrial or agricultural, mining industry.
3rd, it is cleaning, the production process of environment purification.The foul gas produced in composting process is strong due to epidesmine
Adsorb and cut down, substantially reduce environmental pollution.
4th, it is applied widely.The present invention is applicable not only to forest, flowers, turf, fruit tree, vegetables, also acts as tobacco leaf, cotton
The crop base manure such as flower, fiber crops, sugarcane.With crops can be made to make its growth stalwartness, well developed root system, drought resisting, lodging-prevention ability are improved,
Be conducive to the development of cell membrane, and it is rising to reduce blade face, promotes root system respiration, efficiently solves prior art organic fertilizer
The defects of soil hardening caused by nutritional ingredient is unbalance in material, mineralising, is hardened, and retentiveness is poor.
Embodiment
Below by specific embodiment, the invention will be further described, but the invention is not limited in these embodiments.
Percentage involved in following embodiment is weight percentage.
Embodiment 1：
The biological organic fertilizer of the present embodiment uses the following raw material：Fresh chemical starches 201.68 kilograms of paper mill sludge, sugarcane top
30 kilograms, 6 kilograms of poultry hair, 5 kilograms of epidesmine, 6.7 kilograms of rock phosphate in powder, 0.7 kilogram of bioactivity microbial inoculum, nitric acid rare earth
0.13 kilogram, 0.5 kilogram of fulvic acid, 0.05 kilogram of compound sodium nitrophenolate, 0.5 kilogram of composite trace element；
Its preparation process is：
A, first the drying of sugarcane caudal lobe is done to water content≤10%, the short section for then cutting into 1cm long is spare；
B, rock phosphate in powder selects phosphorus chemical industry to discard corner material, belongs to low-grade phosphorus, and P2O5 contents are 17.0%, and it is thin to be ground into 60 mesh
Powder；Epidesmine is natural crystal, through mechanical crushing into 60 mesh fine powders；
C, dry, mechanical crushing is spare to 50 mesh powder through drying for poultry hair；
D, take water content be 75% fresh chemical starch paper mill sludge, with step A made from sheath of sugarcane blade mix, make to mix
The moisture control of compound adds poultry hair made from step C, rock phosphate powder made from step B and the boiling of red brightness in 55%-60%
Mountain flour is uniformly mixed with bioactivity microbial inoculum；
Step D gains are made to bottom is 1.5 meters wide, high 1 meter of strip stacking, through quiet under conditions of forced ventilation E,
The processing of state pile formula aerobic compost；Fertile heap carries out 60 °C of hot fermentations, and turning number is monitored in heap daily depending on temperature in heap
Temperature, control temperature are not higher than 70 °C, turning are carried out in the case of overtemperature, to turn over thoroughly uniformly, fermentation time 28 days；
F, the fermentate obtained by step E is added into nitric acid rare earth, fulvic acid, compound sodium nitrophenolate, composite trace element, blending is
After even, discharge, after outdoor naturally dry, obtain finished product paper mill sludge compost；
G, finished product paper mill sludge compost is dried, then is sieved, is granulated and packed successively.
The composite trace element of the present embodiment includes zinc sulfate, boric acid, manganese sulfate, ammonium molybdate, magnesium sulfate.
Embodiment 2：
The biological organic fertilizer of the present embodiment uses the following raw material：Fresh chemical starches 243.08 kilograms of paper mill sludge, sugarcane top
20 kilograms, 7 kilograms of poultry hair, 5.5 kilograms of epidesmine, 5.5 kilograms of rock phosphate in powder, 0.5 kilogram of bioactivity microbial inoculum, nitric acid rare earth
0.15 kilogram, 0.2 kilogram of fulvic acid, 0.08 kilogram of compound sodium nitrophenolate, 0.3 kilogram of composite trace element；
Its preparation process is：
A, first the drying of sugarcane caudal lobe is done to water content≤10%, the short section for then cutting into 2cm long is spare；
B, rock phosphate in powder selects phosphorus chemical industry to discard corner material, belongs to low-grade phosphorus, and P2O5 contents are 25.0%, and it is thin to be ground into 60 mesh
Powder；Epidesmine is natural crystal, through mechanical crushing into 60 mesh fine powders；
C, dry, mechanical crushing is spare to 50 mesh powder through drying for poultry hair；
D, take water content be 75% chemical pulp paper mill sludge, with step A made from sheath of sugarcane blade mix, make mixture
Moisture control in 55%-60%, add poultry hair made from step C, rock phosphate powder made from step B and epidesmine powder
It is uniformly mixed with bioactivity microbial inoculum；
Step D gains are made to bottom is 2 meters wide, high 1 meter of strip stacking, through static state under conditions of forced ventilation E,
The processing of pile formula aerobic compost；Fertile heap carries out 62 °C of hot fermentations, and turning number monitors temperature in heap daily depending on temperature in heap
Degree, control temperature are not higher than 70 °C, turning are carried out in the case of overtemperature, to turn over thoroughly uniformly, fermentation time 28 days；
F, the fermentate obtained by step E is added into nitric acid rare earth, fulvic acid, compound sodium nitrophenolate, composite trace element, blending is
After even, discharge, after outdoor naturally dry, obtain finished product paper mill sludge compost；
G, finished product paper mill sludge compost is dried, then is sieved, is granulated and packed successively.
The composite trace element of the present embodiment includes zinc sulfate, boric acid, manganese sulfate, ammonium molybdate, magnesium sulfate.
Embodiment 3：
The biological organic fertilizer of the present embodiment uses the following raw material：Fresh chemical starches 263.2 kilograms of paper mill sludge, sugarcane top 21
Kilogram, 10 kilograms of poultry hair, 8 kilograms of epidesmine, 7 kilograms of rock phosphate in powder, 0.7 kilogram of bioactivity microbial inoculum, nitric acid rare earth 0.1 thousand
Gram, 0.2 kilogram of fulvic acid, 0.06 kilogram of compound sodium nitrophenolate, 0.3 kilogram of composite trace element；
Its preparation process is：
A, first the drying of sugarcane caudal lobe is done to water content≤10%, the short section for then cutting into 1cm long is spare；
B, rock phosphate in powder selects phosphorus chemical industry to discard corner material, belongs to low-grade phosphorus, and P2O5 contents are 20.0%, and it is thin to be ground into 60 mesh
Powder；Epidesmine is natural crystal, through mechanical crushing into 60 mesh fine powders；
C, dry, mechanical crushing is spare to 50 mesh powder through drying for poultry hair；
D, take water content be 80% chemical pulp paper mill sludge, with step A made from sheath of sugarcane blade mix, make mixture
Moisture control in 55%-60%, add poultry hair made from step C, rock phosphate powder made from step B and epidesmine powder
It is uniformly mixed with bioactivity microbial inoculum；
Step D gains are made to bottom is 1.5 meters wide, high 1 meter of strip stacking, through quiet under conditions of forced ventilation E,
The processing of state pile formula aerobic compost；Fertile heap carries out 65 °C of hot fermentations, and turning number is monitored in heap daily depending on temperature in heap
Temperature, control temperature are not higher than 70 °C, turning are carried out in the case of overtemperature, to turn over thoroughly uniformly, fermentation time 30 days；
F, the fermentate obtained by step E is added into nitric acid rare earth, fulvic acid, compound sodium nitrophenolate, composite trace element, blending is
After even, discharge, after outdoor naturally dry, obtain finished product paper mill sludge compost；
G, finished product paper mill sludge compost is dried, then is sieved, is granulated and packed successively.
3 products obtained therefrom of above-described embodiment 1- embodiments has following characteristics：
Product appearance：Dark brown humus shape, it is loose, there is soil smell.
Technical indicator testing result：Moisture 12.7%, nitrogen content 3.55%；Phosphorus content is 2.69%；Potassium content is
0.60%；Organic matter is 46.8%；PH value 6.9；Living bacteria count (cfu) is：0.98 hundred million/g；Excrement colibacillus group number is：
43/g (mL)；Induced worm egg death rate is：98.7%；Reach the NY 884-2004 and NY525-2002 China people to be total to
With state's industry standards
Limit index and testing result are (unit：mg/Kg)：
The composite trace element of the present embodiment includes zinc sulfate, borax, manganese sulfate, ammonium molybdate, magnesium sulfate.
Effect test
Pilot project：Winter kind rapeseed cultivation
（One）The design and way of experiment
Experimental design：Experiment is divided to two processing, repeats three times, and plot area is 0.03 mu（40m2）.Random alignment is each small
Area's seeding row spacing is identical, and pocket number is identical.Minizone sets street crossing, and begin to rehearse irrigation ditch, tries to set protection row plantation around area.
Processing item：（1）Apply composite fertilizer（Control）,（2）Apply biological compound fertilizer.
Application process：In cultivation and banking by 25 kilograms of mixing row replacements of composite fertilizer per acre
Cultivation management：（1）Planting patterns：Culturing and transplanting seedlings cave kind, kind Rongyou No.3.Nursery on October 4, November 27 move
Plant, line-spacing 40cm, spacing in the rows 33cm, 150 pockets are planted per cell.Control group applies 25 kilograms of composite fertilizer, treatment group apply 25 kilograms it is compound
Fertilizer.Root water retrogradation is drenched after plant.April 9, maturation was received.（2）Field production management：Tillage and weeding ridging is routinely carried out, is prevented
Cure the disease insect pest.（3）The application method of test material：By mu dosage 30 kilograms of spread manuer in holes respectively composite fertilizer and biological compound fertilizers.（Two）
Result of the test and analysis
1st, yield result
Point cell is received threshing, is dried in units of processing, is weighed yield, be converted into per mu yield, the results are shown in Table
Table 1 tests yield result
The result shows that crop applying biology composite special fertilizer has extremely significant effect of increasing production than control, mathematical statistics reaches
Pole saliency value is arrived.
2nd, species test result：Representational 10 plants of progress species tests of plant are taken before receiving per cell, measure being averaged for every processing
Plant height, bear pods number, branch amount and 100-grain weight, the results are shown in Table 2.
Influence of 2 bio-fertilizer of table to black soya bean economical character
The result shows that：Using biological composite special fertilizer, the activity of rape root enzyme can be improved, increases anti-adversity ability, is promoted
Vine growth and development, improves the agronomic shape of rape, increasing of quality and production.
Claims (4)
1. a kind of biological organic fertilizer, it is characterised in that be made of the raw material of following weight percents：
The paper mill sludge 50-60% in terms of butt, sugarcane top 20-30%, poultry hair 6-10%, epidesmine 5-8%, rock phosphate in powder 5.5-
7%, bioactivity microbial inoculum 0.5-0.7%, nitric acid rare earth 0.1~0.15%, fulvic acid 0.2-0.5%, compound sodium nitrophenolate 0.05-0.08%,
Composite trace element 0.3-0.5%.
2. biological organic fertilizer according to claim 1, it is characterised in that：The composite trace element includes zinc sulfate, boron
Sand, manganese sulfate, ammonium molybdate, magnesium sulfate.
3. a kind of preparation method of biological organic fertilizer, it is characterised in that using the raw material of following percentage by weight：
The paper mill sludge 50-60% in terms of butt, sugarcane top 20-30%, poultry hair 6-10%, epidesmine 5-8%, rock phosphate in powder 5.5-
7%, bioactivity microbial inoculum 0.5-0.7%, nitric acid rare earth 0.1~0.15%, fulvic acid 0.2-0.5%, compound sodium nitrophenolate 0.05-0.08%,
Composite trace element 0.3-0.5%；
Its preparation process is as follows：
A, first sugarcane top is dried in the air and is dried to water content≤10%, the short section for then cutting into 1cm~2cm long is spare；
B, rock phosphate in powder selects phosphorus chemical industry to discard heel, belongs to low-grade phosphorus, P2O5Content is not less than 17.0%, is ground into fine powder；It is red
Foresite is natural crystal, through mechanical crushing fine powder；
C, dry, mechanical crushing is spare to powder through drying for poultry hair；
D, take water content be 75-80% paper mill sludge, with step A made from sugarcane top mix, make the moisture control of mixture
In 55%-60%, poultry hair made from step C, rock phosphate powder made from step B and epidesmine powder and bio-active bacteria (fungi) are added
Agent is uniformly mixed；
Step D gains are made to bottom is 1.5-2.0 meters wide, high 1 meter of strip stacking, through quiet under conditions of forced ventilation E,
The processing of state pile formula aerobic compost；Fertile heap carries out more than 60 DEG C hot fermentations, and turning number is depending on temperature in heap, monitoring daily
Temperature in heap, control temperature are not higher than 70 DEG C, turning are carried out in the case of overtemperature, to turn over thoroughly uniformly, fermentation time 28-30
My god；
F, the fermentate obtained by step E is added into nitric acid rare earth, fulvic acid, compound sodium nitrophenolate, composite trace element, blending is uniformly
Afterwards, discharge, after outdoor naturally dry, obtain finished product paper mill sludge compost；
G, finished product paper mill sludge compost is dried, then is sieved, is granulated and packed successively.
4. the preparation method of biological organic fertilizer according to claim 3, it is characterised in that：In step B, the rock phosphate powder
60 mesh sieves are crossed after broken, the epidesmine crosses 60 mesh sieves after crushing；In step C, the poultry hair crosses 50 mesh sieves after crushing；D is walked
In rapid, the paper mill sludge starches paper mill sludge for fresh chemical.
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| CN106753416A (en) * | 2016-12-30 | 2017-05-31 | 云南磷化集团有限公司 | A kind of preparation method of phosphorus base soil conditioner |
| CN109804890A (en) * | 2017-11-22 | 2019-05-28 | 丹阳市陵口镇庙头土地股份专业合作社 | A kind of environment-friendly type compost |
| CN108207547A (en) * | 2017-12-21 | 2018-06-29 | 广西科技师范学院 | A kind of environmental ecology repairs matrix and its preparation method and application |
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| CN1594225A (en) * | 2004-06-18 | 2005-03-16 | 李成义 | Series special fertilizer prepared by urban sludge and its preparation method |
| US20070227212A1 (en) * | 2006-03-30 | 2007-10-04 | He Zhenli L | Materials and methods for preparing dolomite phosphate rock-based soil amendments and fertilizers |
| CN101555169B (en) * | 2009-05-08 | 2011-01-12 | 广州天河奥特农化新技术有限公司 | Scale high-speed composting treatment method of organic wastes |
| CN101575227A (en) * | 2009-06-17 | 2009-11-11 | 北京美华博大环境工程有限公司 | Method for manufacturing organic fertilizer by utilizing sludge |
| CN101792353A (en) * | 2010-03-23 | 2010-08-04 | 齐绍春 | Multifunctional compound fertilizer capable of killing pests, preventing diseases and increasing yield |
| CN103819273B (en) * | 2014-02-21 | 2016-06-01 | 柳州华源动植宝有限公司 | A kind of green organic fertilizer and its preparation method and application |
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