CN103253993B - Organic cultivation substrate produced by utilizing cattle manure residue and sludge compost and production method thereof - Google Patents
Organic cultivation substrate produced by utilizing cattle manure residue and sludge compost and production method thereof Download PDFInfo
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- CN103253993B CN103253993B CN201310182941.7A CN201310182941A CN103253993B CN 103253993 B CN103253993 B CN 103253993B CN 201310182941 A CN201310182941 A CN 201310182941A CN 103253993 B CN103253993 B CN 103253993B
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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 relates to an organic cultivation substrate produced by utilizing cattle manure residue and sludge compost and a production method thereof. The organic cultivation substrate comprises the following raw materials in parts by weight: 80-85 parts of cattle manure residue and 15-20 parts of sludge compost, wherein the cattle manure residue is solid cattle manure residue which is obtained after performing solid-liquid separation on flushing sewage of a scaled cattle farm, the sludge compost is the sludge compost after mixing, fermentation and composting of urban domestic sludge and waste bacterial slag, the cattle manure residue and the sludge compost are uniformly mixed according to a proportion and then composted for performing aerobic fermentation, 50% of fermented material after the end of fermentation for crushing, and then the large-particle fermented material is uniformly mixed with the small-particle fermented material according to the weight ratio of 1.3: 1-1.2. The organic cultivation substrate disclosed by the invention can overcome the problems of damages to an environment, poor stability of chemical properties, high salt content, low content of organic matters, poor cation exchange capacity and influence on seedling raising of an existing soilless cultivation substrate, has the advantages of low content of salt, appropriate nutrients, low content of heavy metals and no damages to the environment, and can meet the requirements of organic cultivation.
Description
Technical field
The present invention relates to a kind of Solid Cultivation substrates and production method thereof, be specifically related to a kind of utilize cattle manure residue, sludge composting to produce organic culture substrate and production method.
Background technology
Along with developing rapidly of facilities horticulture, cultivation technique without soil and hole plate seedling growth technology, just in big area, apply on a large scale, greatly facilitate the research of Solid Cultivation substrates, development and application.In soilless culture, compared with water planting, solid substrate training facility is simple, cost of investment is low, uses very general.China is the facilities horticulture big country ranked first in the world, and facilities horticulture cultivated area is at 2,000,000 hm
2above, but according to incompletely statistics, national soilless culture area only l070hm
2, the states such as proportion is very low, and Japanese soilless culture area accounts for more than 20% of greenhouse area, Holland then account for more than 90% of greenhouse area, so the development of China's soilless culture still has very large space.The growth momentum of soilless culture in recent years also illustrate that this point, and big area development soilless culture, is especially applicable to the development of the soilless culture substrate of China's national situation, needs a large amount of safety, high-quality, Solid Cultivation substrates easy to use.
The breed quality of quality to seedling of cultivation matrix plays a very important role, and base Quality Research is basis and the key of substrate culture.At present, the matrix generally applied is the peat composed of rotten mosses and rock wool, but the excavation of natural turfy soil constitutes serious threat to wetland and forest ecological environment, causes the destruction of the ecosystem; And rock wool non-degradable, life-time service can cause serious environmental pollution, and the domestic rock wool of China is generally unsuitable for non-soil culture, and import rock wool cost is too high, and therefore, countries in the world are all at the surrogate seeking the peat composed of rotten mosses and rock wool.In recent years, people utilize agricultural organic waste to be used as seedling medium, as brid guano, sawdust, coir etc., but because these agricultural organic waste stable chemical natures are poor, salinity is high, organic matter is low, cation exchange capacity (CEC) is poor and the high rate of emergence caused of pollutant load is low, speed of germination slow, seedling is not strong, burn the appearance of the problems such as seedling, thus uncomfortable cooperation seedling medium.As 200910229209.4,200410065450.5,200910116210.6.
Summary of the invention
The object of this invention is to provide one and utilize cattle manure residue, sludge composting produce organic culture substrate and production method (or claim: one utilizes cattle manure residue, the method of organic culture substrate produced by sludge composting), make it possible to the SOLID ORGANIC cultivation matrix that a large amount of production meets plant growth, overcome existing soilless culture substrate welding, stable chemical nature is poor, salinity is high, organic low, cation exchange capacity (CEC) difference thus affect the problem of nursery, and the recycling approach of cattle manure residue and sludge composting can be widened, realize the recycling of waste, to promote the development of organic culture substrate plant husbandry
.
To achieve these goals, the present invention is this utilizes cattle manure residue, the organic culture substrate that sludge composting is produced, its formula composition comprises the raw material of following weight part: as the cattle manure residue 80-85 of major ingredient, sludge composting 15-20, described cattle manure residue is the solid cattle manure residue of flushing sewage after solid-liquid separation of scaled cattle farms, described sludge composting refers to mix the sludge composting after compost fermentation becomes thoroughly decomposed with municipal sludge with the useless bacterium slag of culturing edible fungus, described cattle manure residue and sludge composting directly mix Hou Jiandui by above-mentioned weight ratio and carry out aerobic fermentation, the fermentation materials (product namely after aerobic fermentation) getting 50% after aerobic fermentation terminates carries out fragmentation, be the ratio of 1.3: 1-1.2 in the weight ratio of macrobead fermentation materials and small-particle fermentation materials after fragmentation, mix and namely can be made into this organic culture substrate (or get the small-particle fermentation materials after 50% fragmentation directly mix with the large granular materials of not fragmentation namely make this organic culture substrate), wherein said small-particle fermentation materials refers to after the screen cloth of break process and 2mm × 2mm mesh sieves, by being small-particle fermentation materials by 2mm × 2mm mesh, not by 2mm × 2mm mesh or size be greater than 2mm × 2mm for macrobead fermentation materials.
Described sludge composting refer to by municipal sludge and after airing of making thinner water content be 25 ± 2% useless bacterium slag mix laggard row compost fermentation by equal-volume ratio and form, the heap body of described sludge composting adopts the high 1.6m of heap, the slot type heap body piling wide 6m carries out compost fermentation, in composting fermentation process, turning every day once, after turning every day, carry out forced ventilation 1h after 12h to material, ventilation is 50mLL simultaneously
-1min
-1, ensure its aerobic fermentation, complete after the 24d that continuously ferments.
The solid-liquid separating machine that it is 0.25 mm that described solid cattle manure residue after solid-liquid separation refers to through mesh size specification be separated after solid cattle manure residue.
This method utilizing cattle manure residue, sludge composting to produce organic culture substrate of the present invention, is characterized in that the method comprising the steps of as follows:
1., get the raw materials ready: by weight being cattle manure residue: the ratio of sludge composting=80-85:15-20, cattle manure residue is mixed with sludge composting, described cattle manure residue is the solid cattle manure residue of flushing sewage after solid-liquid separation of scaled cattle farms, described sludge composting mixes the fertilizer of the mud after compost fermentation becomes thoroughly decomposed with municipal sludge with the useless bacterium slag of culturing edible fungus, the object of adding sludge composting avoids using merely cattle manure residue to cause material fermentation bad, the problems such as the organic culture substrate unit weight of production is too little, porosity is too large;
2., build heap fermentation: the cattle manure residue of step 1 is directly mixed Hou Jiandui by above-mentioned weight ratio with sludge composting and carries out aerobic fermentation, this build heap fermentation refer to build up heap height 1.2m, upper wide 1.4m, the trapezoidal heap body (namely building up cross section is that trapezoidal heap body carries out aerobic fermentation) of bottom width 1.6m, after building heap, temperature starts to continue to climb, after the temperature of heap center mixture rises to 60-65 DEG C, carry out first time turning, after this every 3d turning 1 time, continuing fermentation 25-35d, after the temperature of Dai Dui center cattle manure residue and sludge composting mixture is down to 35-45 DEG C, fermentation ends obtains fermentation materials,
3., broken mixing: the fermentation materials (product namely after aerobic fermentation) after being terminated by step 2 aerobic fermentation is got 50% and carried out fragmentation, be the ratio of 1.3: 1-1.2 in the weight ratio of macrobead fermentation materials and small-particle fermentation materials after fragmentation, mix and namely can be made into this organic culture substrate (or get the small-particle fermentation materials after 50% fragmentation directly mix with the macrobead fermentation materials of not fragmentation namely make this organic culture substrate), wherein said small-particle fermentation materials refers to after the screen cloth of break process and 2mm × 2mm mesh sieves, by being small-particle fermentation materials by 2mm × 2mm mesh, not by 2mm × 2mm mesh or size be greater than 2mm × 2mm for macrobead fermentation materials.
The above-mentioned technical characteristic that the present invention utilizes cattle manure residue, sludge composting to produce the method for organic culture substrate can be specially further:
One, wherein said sludge composting refer to by municipal sludge and after airing of making thinner water content be 25 ± 2% useless bacterium slag to stir by equal-volume and to make its water content be that the fertile fermentation maturities of 55 ± 2% laggard windrow form, the heap body of described sludge composting adopts the high 1.6m of heap, the slot type heap body piling wide 6m carries out compost fermentation, in composting fermentation process, turning every day once, after turning every day, carry out forced ventilation 1h after 12h to material, ventilation is 50mLL simultaneously
-1min
-1, ensure its aerobic fermentation, after the 24d that continuously ferments, complete that (its physicochemical character of this sludge composting is roughly: unit weight 0.66 gcm
-3, organic 57.2%, N content 1.41%, P
2o
5content 2.57%, K
2o content 2.51%, specific conductivity 5.87 mScm
-1).
Two, the solid-liquid separating machine that it is 0.25 mm that described solid cattle manure residue after solid-liquid separation refers to through mesh size specification be separated after solid cattle manure residue.
Remarkable advantage of the present invention:
1, organic culture substrate of the present invention take cattle manure residue as main raw material, is aided with to make after sludge composting adjusts granular size, voidage, unit weight after piling rotten fermentation.Because solid cattle manure residue is that scaled cattle farms rinses the solid cattle manure residue of sewage after solid-liquid separating machine is separated, its main component is ox feed undecomposed stalk after abdomen, the materials such as robust fibre, have organic high, unit weight is low, sedimentation is high, after the washing of salt lease making, content is lower, nutrient is moderate, the advantages such as heavy metal content is low, therefore the organic culture substrate gone out as main material production also has salinity and heavy metal content is low, organic, unit weight, the physico-chemical properties such as voidage are comparatively close to the peat composed of rotten mosses, simultaneously owing to the addition of sludge composting, as the appropriate nutrient that cultivation matrix can provide plant growth to need.
2, cattle manure residue, sludge composting all belong to waste, wide material sources, it is used to not only solve utilization of waste as resource as raw material production organic culture substrate, reduce environmental pollution, and reduce the production cost of organic culture substrate, effectively can promote the development of China's solid substrate cultivation industry.
The production method of a kind of organic culture substrate that the present invention utilizes cattle manure residue, sludge composting to produce, with cattle manure residue and sludge composting for main raw material, without the need to drying treatment, directly builds heap fermentation; To the technique that the fermentation materials after fragmentation adopts macrobead to mix with small-particle, increase the fine particle of organic culture substrate, reduce unit weight, increase tiny hole, increase the saturated aqueous rate of organic culture substrate.The even particle size distribution of the material after collocation is stirred, unit weight is reasonable, and physicochemical character is more excellent, and contained by organic culture substrate of the present invention, N, P, K are not less than 1.2%, 0.57%, 0.69% respectively.(N, P
2o
5, K
2o is not less than 1.2%, 1.3%, 0.83% respectively).Because cattle manure residue source is different, can detects N, P, K content of cattle manure residue before manufacture, to determine the usage quantity that cattle manure residue is most economical, and ensure that N, P, K contained by product reach These parameters.
In a word, the present invention utilizes cattle manure residue, sludge composting to produce organic culture substrate, these waste resources can be utilized rationally and effectively, and greatly can reduce soilless culture production cost and operational administrative difficulty, improve and improve the yield and quality of the ornamental plant such as vegetables and flowers, reach waste ' s reclamation, environmental protect simultaneously, produce significant economic, social and ecological benefits.
Embodiment
Now in conjunction with the embodiments to of the present invention this utilize cattle manure residue, sludge composting to produce organic culture substrate and production method be described in further detail.
The present invention is this utilizes cattle manure residue, the organic culture substrate that sludge composting is produced, its formula composition comprises the raw material of following weight part: as the cattle manure residue 80-85 of major ingredient, sludge composting 15-20, described cattle manure residue is the solid cattle manure residue of flushing sewage after solid-liquid separation of scaled cattle farms, described sludge composting refers to mix the sludge composting after compost fermentation becomes thoroughly decomposed with municipal sludge with the useless bacterium slag of culturing edible fungus, described cattle manure residue and sludge composting directly mix Hou Jiandui by above-mentioned weight ratio and carry out aerobic fermentation, the fermentation materials (product namely after aerobic fermentation) getting 50% after aerobic fermentation terminates carries out fragmentation, be the ratio of 1.3: 1-1.2 in the weight ratio of macrobead fermentation materials and small-particle fermentation materials after fragmentation, mix and namely can be made into this organic culture substrate (or get the small-particle fermentation materials after 50% fragmentation directly mix with the macrobead fermentation materials of not fragmentation namely make this organic culture substrate), wherein said small-particle fermentation materials refers to after the screen cloth of break process and 2mm × 2mm mesh sieves, by being small-particle fermentation materials by 2mm × 2mm mesh, not by 2mm × 2mm mesh or size be greater than 2mm × 2mm for macrobead fermentation materials.
Described sludge composting refer to by municipal sludge and after airing of making thinner water content be 25 ± 2% useless bacterium slag mix laggard row compost fermentation by equal-volume ratio and form, the heap body of described sludge composting adopts the high 1.6m of heap, the slot type heap body piling wide 6m carries out compost fermentation, turning every day of chain-plate type stack turner is adopted once in composting fermentation process, after turning every day, carry out forced ventilation 1h after 12h to material, ventilation is 50mLL simultaneously
-1min
-1, ensure its aerobic fermentation, complete after the 24d that continuously ferments.
The solid-liquid separating machine that it is 0.25 mm that described solid cattle manure residue after solid-liquid separation refers to through mesh size specification be separated after solid cattle manure residue.
This method utilizing cattle manure residue, sludge composting to produce organic culture substrate of the present invention, is characterized in that the method comprising the steps of as follows:
1., get the raw materials ready: by weight being cattle manure residue: the ratio of sludge composting=80-85:15-20, cattle manure residue is mixed with sludge composting, described cattle manure residue is the solid cattle manure residue of flushing sewage after solid-liquid separation of scaled cattle farms, described sludge composting mixes the sludge composting after compost fermentation becomes thoroughly decomposed with municipal sludge with the useless bacterium slag of culturing edible fungus, the object of adding sludge composting avoids using merely cattle manure residue to cause material fermentation bad, the problems such as the organic culture substrate unit weight of production is too little, porosity is too large;
2., build heap fermentation: the cattle manure residue of step 1 is directly mixed Hou Jiandui by above-mentioned weight ratio with sludge composting and carries out aerobic fermentation, this build heap fermentation refer to build up heap height 1.2m, upper wide 1.4m, the trapezoidal heap body (namely building up cross section is that trapezoidal heap body carries out aerobic fermentation) of bottom width 1.6m, after building heap, temperature starts to continue to climb, after the temperature of heap center mixture rises to 60-65 DEG C, carry out first time turning, after this every 3d turning 1 time, continuing fermentation 25-35d, after the temperature of Dai Dui center cattle manure residue and sludge composting mixture is down to 35-45 DEG C, fermentation ends obtains fermentation materials,
3., broken mixing: the fermentation materials (product namely after aerobic fermentation) after being terminated by step 2 aerobic fermentation is got 50% and carried out fragmentation, be the ratio of 1.3: 1-1.2 in the weight ratio of macrobead fermentation materials and small-particle fermentation materials after fragmentation, mix and namely can be made into this organic culture substrate (or get the small-particle fermentation materials after 50% fragmentation directly mix with the macrobead fermentation materials of not fragmentation namely make this organic culture substrate), wherein said small-particle fermentation materials refers to after the screen cloth of break process and 2mm × 2mm mesh sieves, by being small-particle fermentation materials by 2mm × 2mm mesh, not by 2mm × 2mm mesh or size be greater than 2mm × 2mm for macrobead fermentation materials.
The fermentation materials (product namely after aerobic fermentation) wherein getting about 50% carries out the fine particle that broken object is increase organic culture substrate, reduces unit weight, increases tiny hole, increase the saturated aqueous rate of organic culture substrate.The even particle size distribution of the material after collocation mix and blend, unit weight is reasonable, and physicochemical character is more excellent, and after measured, the physicochemical character of this organic culture substrate is: unit weight 0.19 gcm
-3, organic 87.9.7%, N content 0.99%, P
2o
5content 1.02%, K
2o content 0.91%, specific conductivity 1.83mScm
-1.
The above-mentioned technical characteristic that the present invention utilizes cattle manure residue, sludge composting to produce the method for organic culture substrate can be specially further:
One, wherein said sludge composting refer to by municipal sludge and after airing of making thinner water content be 25 ± 2% useless bacterium slag to stir by equal-volume and to make its water content be that the fertile fermentation maturities of 55 ± 2% laggard windrow form, the heap body of described sludge composting adopts the high 1.6m of heap, the slot type heap body piling wide 6m carries out compost fermentation, turning every day of chain-plate type stack turner is adopted once in composting fermentation process, after turning every day, carry out forced ventilation 1h after 12h to material, ventilation is 50mLL simultaneously
-1min
-1, ensure its aerobic fermentation, after the 24d that continuously ferments, complete that (its physicochemical character of the sludge composting after this fermentation maturity is roughly: unit weight 0.66 gcm
-3, organic 57.2%, N content 1.41%, P
2o
5content 2.57%, K
2o content 2.51%, specific conductivity 5.87 mScm
-1, can use as the raw material of organic culture substrate).
Two, the solid-liquid separating machine that it is 0.25 mm that described solid cattle manure residue after solid-liquid separation refers to through mesh size specification be separated after solid cattle manure residue.
Why the present invention utilizes cattle manure residue, the method of organic culture substrate produced by sludge composting, cattle manure residue wherein used is that scaled cattle farms rinses the solid cattle manure residue of sewage after solid-liquid separating machine (solid-liquid separating machine mesh size specification is 0.25 mm) is separated, ox is ruminating animal, its feed is based on roughage, therefore its main component of solid cattle manure residue after being separated is undecomposed stalk in ox feed, the materials such as robust fibre, have organic high, unit weight is low, sedimentation is high, after the washing of salt lease making, content is lower, the advantages such as nutrient is moderate, the basic demand of producing organic culture substrate can be met, its physicochemical character is generally: unit weight 0.08 gcm
-3, organic 93.2%, N content 0.68%, P
2o
5content 0.56%, K
2o content 0.30%, specific conductivity 0.43 mScm
-1, the raw material being suitable as organic culture substrate uses.
Claims (6)
1. one kind utilizes cattle manure residue, the organic culture substrate that sludge composting is produced, it is characterized in that: its formula composition comprises the raw material of following weight part: as the cattle manure residue 80-85 of major ingredient, sludge composting 15-20, described cattle manure residue is the solid cattle manure residue of flushing sewage after solid-liquid separation of scaled cattle farms, described sludge composting refers to mix the sludge composting after compost fermentation becomes thoroughly decomposed with municipal sludge with the useless bacterium slag of culturing edible fungus, described cattle manure residue and sludge composting directly mix Hou Jiandui by above-mentioned weight ratio and carry out aerobic fermentation, the fermentation materials getting 50% after aerobic fermentation terminates carries out fragmentation, be the ratio of 1.3: 1-1.2 in the weight ratio of macrobead fermentation materials and small-particle fermentation materials after fragmentation, mix and namely can be made into this organic culture substrate, or get the small-particle fermentation materials after 50% fragmentation and directly mix with the macrobead fermentation materials of not fragmentation and namely make this organic culture substrate, wherein said small-particle fermentation materials refers to after the screen cloth of break process and 2mm × 2mm mesh sieves, by being small-particle fermentation materials by 2mm × 2mm mesh, not by 2mm × 2mm mesh or size be greater than 2mm × 2mm for macrobead fermentation materials.
2. a kind of organic culture substrate utilizing cattle manure residue, sludge composting to produce according to claim 1, it is characterized in that: described sludge composting refer to by municipal sludge and after airing of making thinner water content be 25 ± 2% useless bacterium slag mix laggard row compost fermentation by equal-volume ratio and form, the heap body of described sludge composting adopts the high 1.6m of heap, the slot type heap body piling wide 6m carries out compost fermentation, in composting fermentation process, turning every day once, after turning every day, carry out forced ventilation 1h after 12h to material, ventilation is 50mLL simultaneously
-1min
-1, ensure its aerobic fermentation, complete after the 24d that continuously ferments.
3. a kind of organic culture substrate utilizing cattle manure residue, sludge composting to produce according to claim 1, is characterized in that: the solid-liquid separating machine that it is 0.25mm that described solid cattle manure residue after solid-liquid separation refers to through mesh size specification be separated after solid cattle manure residue.
4. utilize cattle manure residue, sludge composting to produce a method for organic culture substrate, it is characterized in that step is as follows:
1., get the raw materials ready: by weight being cattle manure residue: the ratio of sludge composting=80-85:15-20, cattle manure residue is mixed with sludge composting, described cattle manure residue is the solid cattle manure residue of flushing sewage after solid-liquid separation of scaled cattle farms, and described sludge composting mixes the fertilizer of the mud after compost fermentation becomes thoroughly decomposed with municipal sludge with the useless bacterium slag of culturing edible fungus;
2. heap fermentation, is built: step cattle manure residue 1. is directly mixed Hou Jiandui by above-mentioned weight ratio with sludge composting and carries out aerobic fermentation, this build heap fermentation refer to build up heap height 1.2m, upper wide 1.4m, the trapezoidal heap body of bottom width 1.6m, after building heap, temperature starts to continue to climb, after the temperature of heap center mixture rises to 60-65 DEG C, carry out first time turning, after this every 3d turning 1 time, continuing fermentation 25-35d, after the temperature of Dai Dui center cattle manure residue and sludge composting mixture is down to 35-45 DEG C, fermentation ends obtains fermentation materials;
3., broken mixing: by step 2. aerobic fermentation terminate after fermentation materials get 50% and carry out fragmentation, be the ratio of 1.3: 1-1.2 in the weight ratio of macrobead fermentation materials and small-particle fermentation materials after fragmentation, mix and namely can be made into this organic culture substrate, or get the small-particle fermentation materials after 50% fragmentation and directly mix with the macrobead fermentation materials of not fragmentation and namely make this organic culture substrate, wherein said small-particle fermentation materials refers to after the screen cloth of break process and 2mm × 2mm mesh sieves, by being small-particle fermentation materials by 2mm × 2mm mesh, not by 2mm × 2mm mesh or size be greater than 2mm × 2mm for macrobead fermentation materials.
5. according to claim 4ly utilize cattle manure residue, the method of organic culture substrate produced by sludge composting, it is characterized in that: wherein said sludge composting refer to by municipal sludge and after airing of making thinner water content be 25 ± 2% useless bacterium slag to stir by equal-volume and to make its water content be that the fertile fermentation maturities of 55 ± 2% laggard windrow form, the heap body of described sludge composting adopts the high 1.6m of heap, the slot type heap body piling wide 6m carries out compost fermentation, turning every day of chain-plate type stack turner is adopted once in composting fermentation process, after turning every day, after 12h, forced ventilation 1h is carried out to material simultaneously, ventilation is 50mLL
-1min
-1, ensure its aerobic fermentation, complete after the 24d that continuously ferments, its physicochemical character of the sludge composting after this fermentation maturity is: unit weight 0.66gcm
-3, organic 57.2%, N content 1.41%, P
2o
5content 2.57%, K
2o content 2.51%, specific conductivity 5.87mScm
-1, can use as the raw material of organic culture substrate.
6. the method for organic culture substrate produced by cattle manure residue, the sludge composting of utilizing according to claim 4, it is characterized in that: the solid-liquid separating machine that it is 0.25mm that described solid cattle manure residue after solid-liquid separation refers to through mesh size specification be separated after solid cattle manure residue.
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| CN108419642A (en) * | 2018-04-02 | 2018-08-21 | 福建熙民环保科技有限公司 | It is a kind of using human excrement slag as the preparation method of the horticultural gardening matrix of primary raw material |
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| CN103253993A (en) | 2013-08-21 |
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Inventor after: Wu Feilong Inventor after: Ye Meifeng Inventor after: Zhang Xiaogeng Inventor after: Geng Geng Inventor after: Lin Daiyan Inventor after: Zhang Yulian Inventor after: Lin Hongyan Inventor before: Wu Feilong Inventor before: Ye Meifeng Inventor before: Lin Hongyan Inventor before: Geng Geng Inventor before: Lin Daiyan |
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