CN108794167A - A kind of organic fertilizer and preparation method and application containing mid low grade phosphate rock powder - Google Patents

A kind of organic fertilizer and preparation method and application containing mid low grade phosphate rock powder Download PDF

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Publication number
CN108794167A
CN108794167A CN201810678799.8A CN201810678799A CN108794167A CN 108794167 A CN108794167 A CN 108794167A CN 201810678799 A CN201810678799 A CN 201810678799A CN 108794167 A CN108794167 A CN 108794167A
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phosphate rock
fertilizer
low grade
organic fertilizer
organic
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CN201810678799.8A
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Inventor
卢红玲
彭福元
鲁耀雄
崔新卫
高鹏
陈冬祥
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Hunan Institute Of Agricultural Environment And Ecology
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Hunan Institute Of Agricultural Environment And Ecology
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    • CCHEMISTRY; METALLURGY
    • C05FERTILISERS; MANUFACTURE THEREOF
    • C05BPHOSPHATIC FERTILISERS
    • C05B17/00Other phosphatic fertilisers, e.g. soft rock phosphates, bone meal
    • CCHEMISTRY; METALLURGY
    • C05FERTILISERS; MANUFACTURE THEREOF
    • C05FORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
    • C05F17/00Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
    • CCHEMISTRY; METALLURGY
    • C05FERTILISERS; MANUFACTURE THEREOF
    • C05GMIXTURES 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
    • C05G3/00Mixtures of one or more fertilisers with additives not having a specially fertilising activity
    • CCHEMISTRY; METALLURGY
    • C05FERTILISERS; MANUFACTURE THEREOF
    • C05GMIXTURES 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
    • C05G3/00Mixtures of one or more fertilisers with additives not having a specially fertilising activity
    • C05G3/80Soil conditioners
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/40Bio-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)
  • Pest Control & Pesticides (AREA)
  • Engineering & Computer Science (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)
  • Fertilizers (AREA)

Abstract

The invention belongs to new agricultural technology fields, more particularly to a kind of organic fertilizer and preparation method and application containing mid low grade phosphate rock powder, the present invention carries out fermentation maturity processing to organic wastes such as agricultural wastes reed slag, edible fungi residues that for example feces of livestock and poultry, stalk, paper mill are discharged, it is manured into soil simultaneously as base fertilizer or seedling medium, both contain a large amount of organic matter, appropriateness supply crops phosphorus nutrition again, the phosphorus nourishing situation of Seedling Stage can be obviously improved, phosphate fertilizer utilization efficiency is improved, good micro-ecological environment is provided for seedling development.The process and cost of agricultural production fertilising are reduced simultaneously, improve phosphate fertilizer utilization efficiency and organic fertilizer uses, promote resource-effective and environmental-friendly.

Description

A kind of organic fertilizer and preparation method and application containing mid low grade phosphate rock powder
Technical field
The invention belongs to new agricultural technology fields, and in particular to a kind of organic fertilizer containing mid low grade phosphate rock powder and preparation Methods and applications, in order to improve phosphate fertilizer utilization efficiency and organic fertilizer uses, promote resource-effective and environmental-friendly.
Technical background
The feces of livestock and poultry and stalk that China generates every year respectively reach 3,700,000,000 tons and 700,000,000 tons, and it is total to account for agricultural wastes respectively The 68% and 18% of amount.In addition, also a large amount of house refuse and processing of farm products waste etc..If feces of livestock and poultry without Processing is just directly discharged in environment, has not only wasted a large amount of organic nutrients, but also polluted environment, is become and industrial wastewater, life Sewage one of three major source of pollution arranged side by side.
The phosphate fertilizer of using in farmland is mostly calcium superphosphate or calcium magnesium phosphate.It is relatively low that general fertilizer efficiency is used alone in ground phosphate rock.But it is raw Production phosphate fertilizer will not only consume a large amount of acid and the energy, also will produce dust pollution and spent acid is caused harm.Therefore, mid low grade phosphate rock because Economic value is low not to be utilized substantially.Currently, in addition to by calcium superphosphate and peat mixture manufacturing organic fertilizer phosphate fertilizer, and utilize The lignocellulosic of papermaking wastewater is activator, outside the fertilizer efficiency to improve ground phosphate rock, still not by mid low grade phosphate rock powder with have Machine waste mixing stack retting, and the contact using organic fertilizer to the activation of ground phosphate rock and its reduction with soil, to improve phosphorus The example of the utilizing status of miberal powder.
Soils in south china is in acid or highly acid more, and the scarce phosphorus of soil is even more serious, and soils in south china leaching is strong, soil Fe, A1, Mn content are high, and easily available phosphorus in fertilizer is fixed, and phosphate fertilizer utilization efficiency is extremely low, and only 10% or so.Therefore, it improves The validity of phosphate fertilizer has been problem in the urgent need to address.
There are many approach for improving phosphorus amount.Wherein, soil is reduced slowly to release the contact fixation of phosphate fertilizer and available phosphorus It is relatively effective method to put.Phosphate rock resource is very limited after all.So economical and efficient utilizes mid low grade phosphate rock and livestock and poultry The organic wastes such as excrement are polluted to reducing soil fixing phosphorus and production of phosphate fertilizer, and fertilizing soil is developed a circular economy and implemented " two subtract " strategy, improves organic nutrient and phosphate fertilizer utilization efficiency, and improving quality of agricultural product has very important meaning.
Invention content
The object of the present invention is to provide a kind of organic fertilizer containing mid low grade phosphate rock powder, organic manure resourceization profits It is improved the decomposition of ground phosphate rock using the biological chemistry action of composting process with agricultural wastes and mid low grade phosphate rock powder and turned Change efficiency, reduces the sour dustiness dye of production of phosphate fertilizer, technical support is provided for ecological agriculture development and new countryside construction.
It is another object of the present invention to provide a kind of preparation method of the organic fertilizer containing mid low grade phosphate rock powder, Method is simple, is suitable for agricultural production.
Third object of the present invention is the provision of a kind of application of the organic fertilizer containing mid low grade phosphate rock powder.It is described Application include but not limited to be used for base manure, or be used for seedling medium.
In order to achieve the above object, the present invention takes following technical measures:
A kind of organic fertilizer containing mid low grade phosphate rock powder, including:
The organic waste be pig manure, cow dung, chicken manure, stalk, system chaff, reed slag, Chinese medicine slag, soy sauce residues, bone meal, The C/N ratios of two or more in wormcast, abandoned vegetable or melon and fruit tendril, the organic waste are 25~30;
The ground phosphate rock is mid low grade phosphate rock powder, and fineness sieves with 100 mesh sieve for 90%.
Commercially available phosphorus decomposing microbial inoculum and straw decomposing inoculant can complete the present invention.
A kind of preparation method of the organic fertilizer containing mid low grade phosphate rock powder, including:
Compost is carried out by the way of high-temperature aerobic, said components are sufficiently mixed and adjust water content be 55%~ 65%, composting body in heaps, when any one temperature of the heap temperature in 55 DEG C~70 DEG C, turning after standing 3~5 days, so Repeatedly, it controls heap temperature during entire compost and is no more than 70 DEG C, compost is after 25~35 days, when temperature drops to and ambient enviroment Substantially close to when, heap body is transferred to decomposed ageing stage, no longer turning;When heap body water content≤30% and humus is formed, compost It finishes.Using this method production the powder containing mid low grade phosphate rock organic fertilizer, containing organic matter 25%~35%, full phosphorus 8%~ 16%, available phosphorus 2%~3%.
A kind of application of the organic fertilizer containing mid low grade phosphate rock powder, is included in as answering in base fertilizer to agricultural crops (base fertilizer) With, or as the application in seedling medium.
Preferably, when the organic fertilizer for containing mid low grade phosphate rock powder as base fertilizer to agricultural crops in use, impose 75 per acre~ 200 kilograms.Method of administration is, when ploughing before proportion of crop planting, it is even to be uniformly spilled into soil intertillage by above-mentioned dosage.It applies in this way With than applying the chemical fertilizer volume increase 10%~15% with equal nutrient content, the common organic fertilizer more equal than organic matter and nitrogen content increases Production 3%~5%.Meanwhile the content of organic matter of soil, fertilizing soil can be improved.
When the organic fertilizer for containing mid low grade phosphate rock powder is utilized as seedling medium, addition than be 20%~50% (for Percent by volume);
Preferably, a kind of seedling medium of the organic fertilizer containing mid low grade phosphate rock powder, including
The matrix is one or both of perlite or vermiculite;
The carbon containing object is one or both of charring rice husk or burnt dust-ashes.
Compared with prior art, the present invention has the following advantages:
1, agricultural wastes recycling is realized.
The present invention has agricultural wastes reed slag, edible fungi residues etc. that for example feces of livestock and poultry, stalk, waste water of paper mill discharge Machine waste carries out fermentation maturity processing, increases soil organic fertilizer application, improves soil continuous production ability, reduces chemical fertilizer and agriculture The use of medicine promotes improvement of the ecological environment.
2, it recycling and cleans and utilizes mid low grade phosphate rock.
Production of phosphate fertilizer will not only consume a large amount of acid and the energy, also will produce dust pollution and spent acid is caused harm, actual production In, mid low grade phosphate rock utilization rate is very low.This technology patent of invention, one using mid low grade phosphate rock powder as phosphate fertilizer is effectively come The decomposition and inversion and organic fertilizer of source, the organic acid for making full use of organic waste decomposable process to generate and phosphorus decomposing microbial inoculum to ground phosphate rock To the package action of ground phosphate rock, reduces soil and fail to phosphorus fixation, improve crop and ground phosphate rock is absorbed and utilized.
3, Crops in Applying Fertilizer recruitment and cost are reduced.
Seedling Stage is the crops period one of most sensitive to phosphorus nourishing demand.The fertilizer is as base fertilizer or seedling medium It is manured into soil simultaneously, not only contains a large amount of organic matter, but also appropriateness supply crops phosphorus nutrition, the phosphorus element of Seedling Stage can be obviously improved Nutrition condition improves phosphate fertilizer utilization efficiency, good micro-ecological environment is provided for seedling development.Simultaneously agricultural production is reduced to apply The process and cost of fertilizer.
Compost is carried out using the organic wastes such as feces of livestock and poultry and ground phosphate rock, is activated by organic waste and phosphorus decomposing microbial inoculum Ground phosphate rock is applied after hot fermentation is decomposed as crops base fertilizer or seedling medium.The technical solution is in addition to phosphorus decomposing microbial inoculum Effect outside, also using when compost organic matter decompose generate organic acid for activating phosphorite powder and reduce soil contacted with ground phosphate rock, Soil is reduced to phosphorus fixation, is utilized to achieve the effect that improve mid low grade phosphate rock powder.Meanwhile soil is increased organic Fertilizer coordinates nitrogen and phosphorus supply.The fertilizer efficiency slow release of ground phosphate rock absorbs phosphorus with crops and mutually coordinates.
4. when as matrix, the formula seeding ratio, seedling leaf color, growth potential and Nutrient Absorption are all preferable, seedling life It is long healthy and strong, and without soil-borne disease, weeds are few.When Planting Crops, make base manure using the fertilizer, dosage be per acre 75~ 200 kilograms, the fertilizer efficiency slow release of ground phosphate rock can be reached and absorb phosphorus with crops and mutually coordinate purpose, soil is to phosphorus fixation Reduce, the effect of ground phosphate rock and calcium superphosphate, calcium magnesium phosphate substantially quite.Meanwhile applying organic manure, fertilizing soil improve Quality of agricultural product.
Specific implementation mode
Technical solution of the present invention is if not otherwise specified the conventional scheme of this field;The reagent or material, If not otherwise specified, commercial channel is derived from.
Embodiment 1:
A kind of organic fertilizer containing mid low grade phosphate rock powder, including:
Component described above is calculated by dry weight.
The ground phosphate rock is mid low grade phosphate rock powder, contains full phosphorus 18%~28%, and fineness is led to for 90% to be sieved with 100 mesh sieve;
The straw decomposing inoculant and phosphorus decomposing microbial inoculum provides for Budweiser international bio limited liability company.Straw decomposing strain Include geotrichum sp, monospore daughter bacteria, aspergillus oryzae, bacillus licheniformis, Trichoderma viride and basidiomycetes in fungi, sac fungus, Orange thermophilic ascomycete;Phosphorus decomposing strain includes solution Bacillus phosphorus, potassium solubilizing bacteria, aspergillus niger, lactic acid bacteria, saccharomycete.
Various raw materials are sufficiently mixed according to the above ratio, mixed C/N is 25, and the water content for adjusting compost is 60%, Composting body in heaps.After compost starts, under the action of microorganism, heap temperature rises various raw materials, and temperature reaches 65 DEG C of (this realities Apply in example, can reach this temperature after 1 day) when, after standing 5 days, then turning, heat dissipation, ventilation are carried out, such operation and control is entire Temperature is no more than 70 DEG C during compost.After compost 25 days, fertilizer temperature drops to ambient enviroment close to unanimously.At this point, heap body Decomposed requirement is basically reached.In shape, compost material particle, which attenuates, to become smaller uniformly, no longer has viscosity, in loose Crumb structure;Stink fades away, and with the soil breath of moistening;Material is brown or taupe;Compost volume and aqueous Rate decreased significantly compared with compost initial stage.Heap body is further continued for curing 20 days later, further humus is promoted to be formed, and water content reduces To 27%.
The organic fertilizer (i.e. following organic fertilizers containing ground phosphate rock mentioned) of such method production, the content of organic matter 32.6%, total nitrogen content 1.6%, content of tatal phosphorus 14.9%, full potassium content 2.7% are used for following embodiment.
Embodiment 2:
A kind of organic fertilizer containing mid low grade phosphate rock powder is in the application as crops base fertilizer
With two excellent No. 15 manure trials for carrying out the organic fertilizer containing mid low grade phosphate rock powder of hybrid early.If 3 processing, Nitrogen, phosphorus, the potassium amount of application each handled is identical, respectively 12 kgs/acre, 7.5 kgs/acre, 8 kgs/acre, wherein nitrogenous fertilizer 40% makees base manure, and 60% makees top dressing, and top dressing is applied in tillering stage and boot stage at twice, and the nitrogen fertilizer application amount of top dressing twice respectively accounts for always The 30% of amount of nitrogen.Organic fertilizer, phosphate fertilizer, potash fertilizer make base manure, and the base manure of 3 processing is as follows:
Handle 1 (control):10.4 kilograms of urea, 46.9 kilograms of calcium superphosphate, 12.7 kilograms of potassium chloride are applied per acre makees base Fertilizer;
Processing 2:Make base using 150 kilograms of 11.5 kilograms of+7.5 kilograms of urea+potassium chloride of organic fertilizer containing ground phosphate rock per acre Fertilizer;
Processing 3:150 kilograms+urea of common organic fertilizer, 7.5 kilograms+calcium superphosphate, 13.8 kilograms+potassium chloride is applied per acre 11.5 kilograms are made base manure.
Remaining top dressing is identical as field management.
Test result is shown in Table 1.It is more organic than common using the organic fertilizer containing ground phosphate rock than whole chemical fertilizer processing volume increase 13.1% Fertilizer volume increase 4.2%.
Table 1:The effect of increasing production of organic fertilizer of the rice application containing ground phosphate rock
Embodiment 3:
A kind of organic fertilizer containing mid low grade phosphate rock powder is in the application as oil crops base fertilizer
Oil crops rape is sensitive to phosphorus, and the fertilizer efficiency that the organic fertilizer containing mid low grade phosphate rock powder is carried out with Feng oil 520 is tried It tests.If 2 processing:
Processing 1:35 kilograms of 15-15-15 composite fertilizers are applied per acre makees base manure;Processing 2, applies the organic fertilizer containing ground phosphate rock per acre 75 kilograms, 25 kilograms of composite fertilizer, 1.14 kilograms of urea makees base manure.In addition it is often handled in peduncle-growing period for rapeseed and applies 5 kilograms of composite fertilizers and 2 public affairs Jin urea works as top dressing, other management are identical.
Test result is shown in Table 2, increases using soil organic matter content after the organic fertilizer containing ground phosphate rock, sclerotinia sclerotiorum is fallen ill Rate reduction, output increased, than processing volume increase 11.5% entirely to fertilize.
Table 2:Rape applies the effect of the organic fertilizer containing ground phosphate rock
Note:Different small capitalizations indicate that difference reaches the level of signifiance (P in table<0.05).
Embodiment 4:
A kind of organic fertilizer containing mid low grade phosphate rock powder is in the application as seedling raising ground substance
Various raw materials are subjected to dispensing by volume, can be used to greenhouse seedling after the completion.The volume of each raw material is respectively: 50 parts of mid low grade phosphate rock powder organic fertilizer, 25 parts of reed foam, 10 parts of charring rice husk, 15 parts of vermiculite.
Weeds in seedling culture shed are first removed, are leveled land, sprinkling drug carries out disinfection to greenhouse.It soaks seed after rice paddy seed disinfection 24 hours.Germination temperature, which is controlled, waits for that 80% or more kind paddy breaks chest and shows money or valuables one carries unintentionally and can sow at 30 DEG C~35 DEG C.Watering makes matrix It is drenched, bud paddy is sowed uniformly.Then one layer of matrix is repaved on seedling disk, is allowed to maintain an equal level with seedling-cultivation plate upper limb.It refers again to big Canopy method of raising seedling is managed.
(processing 1) is compared with the seedling raising ground substance that market is bought, to examine the organic fertilizer containing mid low grade phosphate rock powder to make The effect of rice matrix seedling (processing 2).Test result is shown in Table 3, and the organic fertilizer containing mid low grade phosphate rock powder makees educating for matrix Seedling effect is better than commercial goods seedling raising ground substance.
Table 3:Organic fertilizer containing mid low grade phosphate rock powder makees matrix greenhouse seedling effect
Note:Different small capitalizations indicate that difference reaches the level of signifiance (P in table<0.05).

Claims (5)

1. a kind of organic fertilizer containing mid low grade phosphate rock powder, including:
Ingredients weight parts
Organic waste 60 ~ 80
Ground phosphate rock 20~30
Humic acid 5~10
Phosphorus decomposing microbial inoculum 0.05~0.1
Straw decomposing inoculant 0.1~0.5
The organic waste is pig manure, cow dung, chicken manure, stalk, system chaff, reed slag, Chinese medicine slag, soy sauce residues, bone meal, earthworm The C/N ratios of two or more in excrement, abandoned vegetable or melon and fruit tendril, the organic waste are 25~30;
The ground phosphate rock is mid low grade phosphate rock powder.
2. a kind of preparation method of the organic fertilizer containing mid low grade phosphate rock powder, including:
Compost is carried out by the way of high-temperature aerobic, component described in claim 1 is sufficiently mixed and adjust water content be 55%~ 65%, composting body in heaps, when any one temperature of the heap temperature in 55 DEG C~70 DEG C, turning after standing 3~5 days is so anti- Multiple, heap temperature is no more than 70 DEG C during controlling entire compost, and compost is after 25~35 days, when temperature drops to and ambient enviroment base When this is close, heap body is transferred to decomposed ageing stage, no longer turning;When heap body water content≤30% and humus is formed, and compost is complete Finish.
3. application of the organic fertilizer described in claim 1 containing mid low grade phosphate rock powder in preparing base fertilizer to agricultural crops.
4. application of the organic fertilizer described in claim 1 containing mid low grade phosphate rock powder in preparing seedling medium.
5. application according to claim 3, the seedling medium, including:
Volume components part
Organic fertilizer 20~50 described in claim 1
Matrix 15~25
Reed foam 25~40
Carbon containing object 5~10
The matrix is one or both of perlite or vermiculite;
The carbon containing object is one or both of charring rice husk or burnt dust-ashes.
CN201810678799.8A 2018-06-27 2018-06-27 A kind of organic fertilizer and preparation method and application containing mid low grade phosphate rock powder Pending CN108794167A (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109429981A (en) * 2019-01-08 2019-03-08 湖南省农业环境生态研究所 A kind of soilless culture substrate and preparation method thereof
CN110235744A (en) * 2019-07-04 2019-09-17 湖北禾惠生态科技有限公司 It is a kind of based on biomass biogas residue be raw material tobacco seedling medium
CN111205141A (en) * 2020-01-13 2020-05-29 河北玖农生物肥料有限公司 Bio-organic fertilizer and preparation process thereof
CN111302870A (en) * 2020-04-19 2020-06-19 张松洋 Special organic fertilizer for apple trees
CN111777443A (en) * 2020-06-22 2020-10-16 广西伟恒生态农业有限公司 Nitrogenous phosphate fertilizer and preparation method thereof
CN113582780A (en) * 2021-08-12 2021-11-02 中国科学院城市环境研究所 Phosphorus-rich and silicon-rich compost product prepared by adding yellow phosphorus slag and production method thereof
CN114573396A (en) * 2022-03-31 2022-06-03 山东捷利尔生物工程科技有限公司 Method for producing fertilizer
CN115073239A (en) * 2022-06-24 2022-09-20 云南磷化集团有限公司 Preparation method of organic fertilizer compounded by livestock manure and phosphate tailings

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101905982A (en) * 2010-07-02 2010-12-08 云南华卿亿安生物工程有限公司 Biological phosphate fertilizer prepared from middle and low-grade phosphate ore
WO2018020514A1 (en) * 2016-07-28 2018-02-01 Omega Ecotech Products India Pvt Ltd An activated aerobic composting media and production method thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101905982A (en) * 2010-07-02 2010-12-08 云南华卿亿安生物工程有限公司 Biological phosphate fertilizer prepared from middle and low-grade phosphate ore
WO2018020514A1 (en) * 2016-07-28 2018-02-01 Omega Ecotech Products India Pvt Ltd An activated aerobic composting media and production method thereof

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109429981A (en) * 2019-01-08 2019-03-08 湖南省农业环境生态研究所 A kind of soilless culture substrate and preparation method thereof
CN110235744A (en) * 2019-07-04 2019-09-17 湖北禾惠生态科技有限公司 It is a kind of based on biomass biogas residue be raw material tobacco seedling medium
CN111205141A (en) * 2020-01-13 2020-05-29 河北玖农生物肥料有限公司 Bio-organic fertilizer and preparation process thereof
CN111302870A (en) * 2020-04-19 2020-06-19 张松洋 Special organic fertilizer for apple trees
CN111777443A (en) * 2020-06-22 2020-10-16 广西伟恒生态农业有限公司 Nitrogenous phosphate fertilizer and preparation method thereof
CN113582780A (en) * 2021-08-12 2021-11-02 中国科学院城市环境研究所 Phosphorus-rich and silicon-rich compost product prepared by adding yellow phosphorus slag and production method thereof
CN114573396A (en) * 2022-03-31 2022-06-03 山东捷利尔生物工程科技有限公司 Method for producing fertilizer
CN115073239A (en) * 2022-06-24 2022-09-20 云南磷化集团有限公司 Preparation method of organic fertilizer compounded by livestock manure and phosphate tailings

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