CN109369231A - A kind of preparation method of biological organic complex fertilizer - Google Patents
A kind of preparation method of biological organic complex fertilizer Download PDFInfo
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- CN109369231A CN109369231A CN201811457835.4A CN201811457835A CN109369231A CN 109369231 A CN109369231 A CN 109369231A CN 201811457835 A CN201811457835 A CN 201811457835A CN 109369231 A CN109369231 A CN 109369231A
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C3/00—Fertilisers containing other salts of ammonia or ammonia itself, e.g. gas liquor
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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
- C05F17/50—Treatments combining two or more different biological or biochemical treatments, e.g. anaerobic and aerobic treatment or vermicomposting and aerobic treatment
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/20—Mixtures of one or more fertilisers with additives not having a specially fertilising activity for preventing the fertilisers being reduced to powder; Anti-dusting additives
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/80—Soil conditioners
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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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- Soil Sciences (AREA)
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Abstract
The present invention discloses a kind of preparation method of biological organic complex fertilizer, includes the following steps: for stalk to be added in pulverizer, crush, spare；Pond sugar sludge, vinasse and cow dung are added in blender, stirred evenly, is added and adds rattan bacterium and EM bacterium, it is decomposed；Bacillus subtilis, lactic acid bacteria and smashed stalk are uniformly mixed, be added to it is decomposed after material in, stir evenly, it is decomposed again；Material dewatering after fermentation to water content is 20~30%, is crushed, is sieved after natural drying, attapulgite modified, vermiculite power, urea, ferrous sulfate, ammonium molybdate, potassium chloride, magnesium sulfate and humic acid is then added, is uniformly mixed, drying to get.Ecological composite organic-inorganic fertilizer of the invention has good effect to yield, the quality of crop, while having the function of improveing soil, provides superior growing environment for crops, realizes preferable economic benefit and ecological benefits.
Description
Technical field
The present invention relates to ecological fertilizer technical field, in particular to a kind of preparation method of biological organic complex fertilizer
Background technique
Compound organic and inorganic fertilizer organic matter fractions are mainly organic fertilizer, are based on plant and animal residues, and simultaneously through everfermentation
Decomposed organic matter effectively can provide organic nutrient for plant, and crop is equivalent to farmyard manure.N-P-K content is equal
Weighing apparatus can play the role of fixed nitrogen, phosphorus decomposing, potassium decomposing containing a large amount of beneficial bacterium simultaneously, promote the absorption of N P and K, improve nitrogen phosphorus
Potassium absorptivity.Compared to the N P and K that only applies fertilizer, absorptivity can improve 30-50% or so.
It is rich in N, P, K, a variety of Meso- and micro-nutrients and organic matter in sludge, is natural organic fertilizer.But due to it
In containing a variety of hazardous contaminants such as pathogen, helminth (ovum) and heavy metal, directly the very big health of application presence, pacify
Entirely, the risks such as environmental pollution, resource utilization are restricted.In addition, in recent years, animal husbandry development in China's is very swift and violent,
Also largely there is scale and intensive aquaculture industry, and its brought excrement discharge and problem of environmental pollution are also more next
It is more serious.There are also many farms for convenience with saving cost, arbitrarily accumulates excrement, this has more aggravated the pollution of environment,
The health and epidemic prevention of people and farm itself are affected indirectly, it is easy to be directed at the outburst of infectious disease.
Therefore, how effectively by pond sugar sludge and cultivation decontamination of human excreta, minimizing and carry out resource utilization, become useless
For treasured, the recycling of resource is realized, it has also become the hot and difficult issue competitively studied now.
Summary of the invention
In view of the above technical problems, the present invention provides a kind of preparation method of biological organic complex fertilizer, make for sludge and
The resource utilization of cultivation excrement provides a kind of new approach.
In order to solve the above technical problems, the technical solution of the present invention is as follows:
The present invention provides a kind of preparation method of biological organic complex fertilizer, includes the following steps:
(1) straw is added in pulverizer, is crushed, it is spare；
(2) pond sugar sludge, vinasse and cow dung are added in blender, are stirred evenly, be added and add rattan bacterium and EM bacterium, be heated to
45~50 DEG C 30~35 hours decomposed；
(3) bacillus subtilis, lactic acid bacteria and smashed straw are uniformly mixed, be added in step (2) it is decomposed after
Material in, stir evenly, it is 35~40 hours decomposed at 30~35 DEG C；
(4) material dewatering to the water content after fermenting is 20~30%, is crushed, is sieved after natural drying, is then added
Attapulgite modified, vermiculite power, urea, ferrous sulfate, ammonium molybdate, potassium chloride, magnesium sulfate and humic acid, are uniformly mixed,
Drying to get
Wherein it is preferred to by weight, it is 10-20 parts that pond sugar sludge, which is 30-60 parts, spills grain, cow dung is 10-20 parts,
Straw is 20-30 parts, it is attapulgite modified be 5-10 parts, vermiculite power is 3-5 parts, urea is 15-25 parts, ferrous sulfate 1-2
Part, ammonium molybdate are 0.4-0.6 parts, potassium chloride is 0.5-0.8 parts, magnesium sulfate is 1.4-1.6 parts, humic acid is 1-3 parts.
Wherein it is preferred in the step (2) plus the additional amount of rattan bacterium be pond sugar sludge, vinasse and cow dung total amount 1~
2%, the additional amount of the EM bacterium is the 1~2% of pond sugar sludge, vinasse and cow dung total amount.
Wherein it is preferred to the additional amount of bacillus subtilis described in the step (3) is the 0.5~1.5% of straw,
The additional amount of the lactic acid bacteria is the 0.5~1.5% of straw.
Wherein it is preferred to the attapulgite modified preparation method is first to use salt acid soak attapulgite 1-2 hours,
It stands, clarifies, centrifugation, solid is washed with water to neutrality, after drying, is added odium stearate ball milling 1-2 hours in the ball mill, then
Washing filtering, drying, obtains attapulgite modified.
Wherein it is preferred to which the mass percent concentration of the hydrochloric acid is 18~25%.
Wherein it is preferred to which the weight ratio of the attapulgite and the odium stearate is 8~10:1.
Wherein it is preferred to which the water content of the sludge is 50~60%.
Wherein it is preferred to which the straw is wheat straw or corn stalk.
Beneficial effects of the present invention:
Biological bacteria is added through decomposed processing in sludge, vinasse and crop waste straw by the present invention, and the decomposed time is short, and
To ambient enviroment close friend.Sludge fermentation can accomplish the cyclic utilization of waste at organic fertilizer, remove stink, and can apply farmland, play
Culture fertility improves the effects of agricultural product quality, is to achieve many things at one stroke.
Attapulgite modified and vermiculite power is added in raw material of the present invention simultaneously as filler material, attapulgite is by changing
Property after, absorption property improve, improve the fertilizer efficiency of fertilizer.Shared with vermiculite power, can anti-fertilizer agglomeration, increase the dispersion of fertilizer
Property, further improve the fertilizer efficiency of fertilizer.
Ecological composite organic-inorganic fertilizer of the invention has good effect to yield, the quality of crop, while having conditioned soil
The effect of earth provides superior growing environment for crops, realizes preferable economic benefit and ecological benefits.
Specific embodiment
Below in conjunction with the specific embodiment of the invention, technical solution of the present invention is clearly and completely described, is shown
So, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on the reality in the present invention
Example is applied, every other embodiment obtained by those of ordinary skill in the art without making creative efforts all belongs to
In the scope of protection of the invention.
Embodiment 1
The present embodiment provides a kind of preparation methods of biological organic complex fertilizer, include the following steps:
(1) wheat straw is added in pulverizer, is crushed, it is spare；
(2) pond sugar sludge, vinasse and cow dung are added in blender, are stirred evenly, be added and add rattan bacterium and EM bacterium, be heated to
45~50 DEG C 32 hours decomposed；The additional amount for adding rattan bacterium is the 1.5% of pond sugar sludge, vinasse and cow dung total amount；The addition of EM bacterium
Amount is the 1.5% of pond sugar sludge, vinasse and cow dung total amount；
(3) bacillus subtilis, lactic acid bacteria and smashed wheat straw are uniformly mixed, are added in step (2) corruption
In material after ripe, stir evenly, it is 36 hours decomposed at 30~35 DEG C；The additional amount of bacillus subtilis is the 1.0% of straw,
The additional amount of the lactic acid bacteria is the 1.0% of straw；
(4) material dewatering to the water content after fermenting is 25%, is crushed, is sieved after natural drying, is then added and be modified
Attapulgite, vermiculite power, urea, ferrous sulfate, ammonium molybdate, potassium chloride, magnesium sulfate and humic acid, are uniformly mixed, drying,
To obtain the final product.
Wherein, by weight, sugar sludge in pond is 45 parts, to spill grain be 15 parts, cow dung is 15 parts, wheat straw is 25 parts,
Attapulgite modified is 8 parts, vermiculite power is 4 parts, urea is 20 parts, ferrous sulfate is 1.5 parts, ammonium molybdate is 0.5 part, potassium chloride
For 0.7 part, magnesium sulfate be 1.5 parts, humic acid is 2 parts.
Wherein, the attapulgite modified preparation method be first 20% with mass percent concentration salt acid soak it is recessed
It convex stick soil 1.5 hours, stands, clarifies, centrifugation, solid is washed with water to neutrality, and after drying, odium stearate ball in the ball mill is added
The weight ratio of mill 1.5 hours, the attapulgite and the odium stearate is 9:1, then washing filtering, and drying is modified
Attapulgite.
Wherein, the water content of the sludge is 55%.
Embodiment 2
The present embodiment provides a kind of preparation methods of biological organic complex fertilizer, include the following steps:
(1) wheat straw is added in pulverizer, is crushed, it is spare；
(2) pond sugar sludge, vinasse and cow dung are added in blender, are stirred evenly, be added and add rattan bacterium and EM bacterium, be heated to
45~50 DEG C 30 hours decomposed；Add the additional amount of rattan bacterium for the additional amount of 2%, the EM bacterium of pond sugar sludge, vinasse and cow dung total amount
It is the 1% of pond sugar sludge, vinasse and cow dung total amount；
(3) bacillus subtilis, lactic acid bacteria and smashed wheat straw are uniformly mixed, are added in step (2) corruption
In material after ripe, stir evenly, it is 40 hours decomposed at 30~35 DEG C；The additional amount of bacillus subtilis is the 0.5% of straw,
The additional amount of the lactic acid bacteria is the 1.5% of straw；
(4) material dewatering to the water content after fermenting is 20%, is crushed, is sieved after natural drying, is then added and be modified
Attapulgite, vermiculite power, urea, ferrous sulfate, ammonium molybdate, potassium chloride, magnesium sulfate and humic acid, are uniformly mixed, drying,
To obtain the final product.
Wherein, by weight, sugar sludge in pond is 30 parts, to spill grain be 20 parts, cow dung is 10 parts, straw is 30 parts, modified
Attapulgite is 5 parts, vermiculite power is 5 parts, urea is 15 parts, ferrous sulfate is 2 parts, ammonium molybdate is 0.4 part, potassium chloride 0.8
Part, magnesium sulfate are 1.4 parts, humic acid is 3 parts.
Wherein, the attapulgite modified preparation method be first 18% with mass percent concentration salt acid soak it is recessed
It convex stick soil 2 hours, stands, clarifies, centrifugation, solid is washed with water to neutrality, and after drying, odium stearate ball milling in the ball mill is added
1 hour, the weight ratio of the attapulgite and the odium stearate was 10:1, then washing filtering, drying, obtained modified bumps
Stick soil.
Wherein, the water content of the sludge is 50%.
Embodiment 3
The present embodiment provides a kind of preparation methods of biological organic complex fertilizer, include the following steps:
(1) wheat straw is added in pulverizer, is crushed, it is spare；
(2) pond sugar sludge, vinasse and cow dung are added in blender, are stirred evenly, be added and add rattan bacterium and EM bacterium, be heated to
45~50 DEG C 35 hours decomposed；Add the additional amount of rattan bacterium for the additional amount of 1%, the EM bacterium of pond sugar sludge, vinasse and cow dung total amount
It is the 2% of pond sugar sludge, vinasse and cow dung total amount；
(3) bacillus subtilis, lactic acid bacteria and smashed wheat straw are uniformly mixed, are added in step (2) corruption
In material after ripe, stir evenly, it is 35 hours decomposed at 30~35 DEG C；The additional amount of bacillus subtilis is the 1.5% of straw,
The additional amount of the lactic acid bacteria is the 0.5% of straw；
(4) material dewatering to the water content after fermenting is 30%, is crushed, is sieved after natural drying, is then added and be modified
Attapulgite, vermiculite power, urea, ferrous sulfate, ammonium molybdate, potassium chloride, magnesium sulfate and humic acid, are uniformly mixed, drying,
To obtain the final product.
Wherein, by weight, sugar sludge in pond is 60 parts, to spill grain be 10 parts, cow dung is 20 parts, wheat straw is 20 parts,
Attapulgite modified is 10 parts, vermiculite power is 3 parts, urea is 25 parts, ferrous sulfate is 1 part, ammonium molybdate is 0.6 part, potassium chloride
For 0.5 part, magnesium sulfate be 1.6 parts, humic acid is 1 part.
Wherein, the attapulgite modified preparation method be first 25% with mass percent concentration salt acid soak it is recessed
It convex stick soil 1 hour, stands, clarifies, centrifugation, solid is washed with water to neutrality, and after drying, odium stearate ball milling in the ball mill is added
2 hours, the weight ratio of the attapulgite and the odium stearate was 8:1, then washing filtering, drying, obtained modified bumps
Stick soil.
Wherein, the water content of the sludge is 60%.
Embodiment 4
The present embodiment provides a kind of preparation methods of biological organic complex fertilizer, include the following steps:
(1) corn stalk is added in pulverizer, is crushed, it is spare；
(2) pond sugar sludge, vinasse and cow dung are added in blender, are stirred evenly, be added and add rattan bacterium and EM bacterium, be heated to
45~50 DEG C 32 hours decomposed；Add the additional amount of rattan bacterium for the addition of 1.8%, the EM bacterium of pond sugar sludge, vinasse and cow dung total amount
Amount is the 1.2% of pond sugar sludge, vinasse and cow dung total amount；
(3) bacillus subtilis, lactic acid bacteria and smashed corn stalk are uniformly mixed, are added in step (2) corruption
In material after ripe, stir evenly, it is 37 hours decomposed at 30~35 DEG C；The additional amount of bacillus subtilis is the 1.2% of straw,
The additional amount of the lactic acid bacteria is the 0.8% of straw；
(4) material dewatering to the water content after fermenting is 27%, is crushed, is sieved after natural drying, is then added and be modified
Attapulgite, vermiculite power, urea, ferrous sulfate, ammonium molybdate, potassium chloride, magnesium sulfate and humic acid, are uniformly mixed, drying,
To obtain the final product.
Wherein, by weight, sugar sludge in pond is 40 parts, to spill grain be 18 parts, cow dung is 12 parts, corn stalk is 28 parts,
Attapulgite modified is 7 parts, vermiculite power is 4 parts, urea is 22 parts, ferrous sulfate is 1.5 parts, ammonium molybdate is 0.5 part, potassium chloride
For 0.7 part, magnesium sulfate be 1.3 parts, humic acid is 2 parts.
Wherein, the attapulgite modified preparation method be first 24% with mass percent concentration salt acid soak it is recessed
It convex stick soil 1.5 hours, stands, clarifies, centrifugation, solid is washed with water to neutrality, and after drying, odium stearate ball in the ball mill is added
The weight ratio of mill 2 hours, the attapulgite and the odium stearate is 10:1, then washing filtering, and drying obtains being modified recessed
Convex stick soil.
Wherein, the water content of the sludge is 54%.
Embodiment 5
The present embodiment provides a kind of preparation methods of biological organic complex fertilizer, include the following steps:
(1) corn stalk is added in pulverizer, is crushed, it is spare；
(2) pond sugar sludge, vinasse and cow dung are added in blender, are stirred evenly, be added and add rattan bacterium and EM bacterium, be heated to
45~50 DEG C 33 hours decomposed；Add the additional amount of rattan bacterium for the addition of 1.3%, the EM bacterium of pond sugar sludge, vinasse and cow dung total amount
Amount is the 1.7% of pond sugar sludge, vinasse and cow dung total amount；
(3) bacillus subtilis, lactic acid bacteria and smashed corn stalk are uniformly mixed, are added in step (2) corruption
In material after ripe, stir evenly, it is 38 hours decomposed at 30~35 DEG C；The additional amount of bacillus subtilis is the 1.2% of straw,
The additional amount of the lactic acid bacteria is the 0.8% of straw；
(4) material dewatering to the water content after fermenting is 26%, is crushed, is sieved after natural drying, is then added and be modified
Attapulgite, vermiculite power, urea, ferrous sulfate, ammonium molybdate, potassium chloride, magnesium sulfate and humic acid, are uniformly mixed, drying,
To obtain the final product.
Wherein, by weight, sugar sludge in pond is 50 parts, to spill grain be 12 parts, cow dung is 18 parts, corn stalk is 24 parts,
Attapulgite modified is 6 parts, vermiculite power is 4 parts, urea is 20 parts, ferrous sulfate is 1.8 parts, ammonium molybdate is 0.47 part, chlorination
Potassium is 0.6 part, magnesium sulfate is 1.5 parts, humic acid is 2.5 parts.
Wherein, the attapulgite modified preparation method be first 20% with mass percent concentration salt acid soak it is recessed
It convex stick soil 1.5 hours, stands, clarifies, centrifugation, solid is washed with water to neutrality, and after drying, odium stearate ball in the ball mill is added
The weight ratio of mill 2 hours, the attapulgite and the odium stearate is 9:1, then washing filtering, and drying obtains being modified recessed
Convex stick soil.
Wherein, the water content of the sludge is 58%.
Application Example
This test sets 6 processing altogether, and random district's groups arrangement is repeated 3 times, test area 40m2。
Control group: conventional fertilizer application, common fertilizer, per acre dosage 100kg.
Processing 2: the biological organic complex fertilizer of embodiment 1, per acre dosage 60g.
Processing 3: the biological organic complex fertilizer of embodiment 2, per acre dosage 60g.
Processing 4: the biological organic complex fertilizer of embodiment 3, per acre dosage 60g.
Processing 5: the biological organic complex fertilizer of embodiment 4, per acre dosage 60g.
Processing 6: the biological organic complex fertilizer of embodiment 5, per acre dosage 60g.
6 processing groups are except in addition to base manure fertilising, other steps such as sowing, watering are identical, comparing result such as following tables
It is shown:
From the above data, it can be seen that biological organic complex fertilizer yield of the invention is apparently higher than control group, i.e., it is of the invention
Biological organic complex fertilizer there is fertilizer efficiency to be apparently higher than common fertilizer.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of preparation method of biological organic complex fertilizer, it is characterised in that include the following steps:
(1) straw is added in pulverizer, is crushed, it is spare；
(2) pond sugar sludge, vinasse and cow dung are added in blender, are stirred evenly, is added plus rattan bacterium and EM bacterium, it is heated to 45~
50 DEG C 30~35 hours decomposed；
(3) bacillus subtilis, lactic acid bacteria and smashed straw are uniformly mixed, be added in step (2) it is decomposed after object
In material, stir evenly, it is 35~40 hours decomposed at 30~35 DEG C；
(4) material dewatering to the water content after fermenting is 20~30%, is crushed, is sieved after natural drying, is then added and be modified
Attapulgite, vermiculite power, urea, ferrous sulfate, ammonium molybdate, potassium chloride, magnesium sulfate and humic acid, are uniformly mixed, drying,
To obtain the final product.
2. a kind of preparation method of biological organic complex fertilizer according to claim 1, it is characterised in that: by weight,
It is 10-20 parts that pond sugar sludge, which is 30-60 parts, spills grain, cow dung is 10-20 parts, straw is 20-30 parts, it is attapulgite modified be 5-
10 parts,
Vermiculite power is 3-5 parts, urea is 15-25 parts, ferrous sulfate is 1-2 parts, ammonium molybdate is 0.4-0.6 parts, potassium chloride is
0.5-0.8 parts, magnesium sulfate be 1.4-1.6 parts, humic acid is 1-3 parts.
3. a kind of preparation method of biological organic complex fertilizer according to claim 1, it is characterised in that: the step (2)
In plus rattan bacterium additional amount be pond sugar sludge, vinasse and cow dung total amount 1~2%, the additional amount of the EM bacterium be pond sugar sludge,
The 1~2% of vinasse and cow dung total amount.
4. a kind of preparation method of biological organic complex fertilizer according to claim 1, it is characterised in that: the step (3)
Described in the additional amount of bacillus subtilis be the 0.5~1.5% of straw, the additional amount of the lactic acid bacteria be straw 0.5~
1.5%.
5. a kind of preparation method of biological organic complex fertilizer according to claim 1, it is characterised in that: described modified concave-convex
The preparation method of stick soil is first to use salt acid soak attapulgite 1-2 hours, stands, clarifies, and centrifugation, solid is washed with water to neutrality,
After drying, it is added odium stearate ball milling 1-2 hours in the ball mill, then washing filtering, drying obtain attapulgite modified.
6. a kind of preparation method of biological organic complex fertilizer according to claim 5, it is characterised in that: the matter of the hydrochloric acid
Measuring percent concentration is 18~25%.
7. a kind of preparation method of biological organic complex fertilizer according to claim 5, it is characterised in that: the attapulgite
Weight ratio with the odium stearate is 8~10:1.
8. a kind of preparation method of biological organic complex fertilizer according to claim 1, it is characterised in that: the sludge contains
Water is 50~60%.
9. a kind of preparation method of biological organic complex fertilizer according to claim 1, it is characterised in that: the straw is small
Wheat straw bar or corn stalk.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110015825A (en) * | 2019-04-30 | 2019-07-16 | 中国科学院水生生物研究所 | A kind of environmental host material and preparation method and application promoting microorganism overlay film and growth |
| CN113142014A (en) * | 2020-12-31 | 2021-07-23 | 中建三局绿色产业投资有限公司 | Alkaline river silt-based garden green planting soil and preparation method thereof |
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