CN104557287B - A kind of green ecological potash fertilizer and preparation method - Google Patents
A kind of green ecological potash fertilizer and preparation method Download PDFInfo
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- CN104557287B CN104557287B CN201410823963.1A CN201410823963A CN104557287B CN 104557287 B CN104557287 B CN 104557287B CN 201410823963 A CN201410823963 A CN 201410823963A CN 104557287 B CN104557287 B CN 104557287B
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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
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B17/00—Other phosphatic fertilisers, e.g. soft rock phosphates, bone meal
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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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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pest Control & Pesticides (AREA)
- Soil Sciences (AREA)
- Fertilizers (AREA)
Abstract
The invention belongs to Crop fertilizer fields, and in particular to a kind of green ecological potash fertilizer and preparation method.It is mainly formed as potash fertilizer, water hyacinth, rock phosphate in powder and reactive conditioners the present invention, is first removed the processing of heavy metal to water hyacinth, then with potash fertilizer and activating conditioner and carrying out being mixed to get the green ecological potash fertilizer.The green ecological potash fertilizer is using water hyacinth as main organic matter, the leaching of potash fertilizer in the soil can be avoided to be lost in, while can also improve soil, improve the hardened of soil, increase soil with organic matter, microbial activity is improved, enhances the degeneration-resistant disease resistance of crop, the water hyacinth for having certain negative effect to environment can be rationally utilized while potash fertilizer is provided, reduce environmental pressure, it is environmentally protective to people, animal, safe and non-toxic, it is a kind of ecological fertilizer of environment-friendly type.
Description
Technical field
The invention belongs to the fertilizer field of crops, be more precisely related to a kind of environmentally protective ecological potash fertilizer and its
Preparation method.
Background technology
Ecological fertilizer is a kind of environmental friendly fertilizer, containing substantial amounts of organic matter, can promote soil in being manured into soil
The activity of middle microorganism enhances the degeneration-resistant disease resistance of crop, reduces continuous cropping, and application year after year can alleviate continuous cropping obstacle significantly,
Promote quality of agricultural product；Soil texture can be also improved, increases the porosity of soil, keeps soil from packing together；Moisture can be reduced simultaneously
The pressure arid with evaporation, mitigation, fertilizer conservation are lost in, chemical fertilizer is reduced, mitigates saline and alkaline damage, soil fertility is promoted, offer battalion is provided
While supporting, improve the effect of soil.
With increasing for world population, grain yield problem is an important topic in agricultural production.In order to improve grain
Yield, the use of chemical fertilizer is essential, is mainly the use of N P and K in chemical fertilizer, and wherein potash fertilizer has the growth of crop very heavy
The effect wanted.Potash fertilizer exists in soil in the form of ion, and potash fertilizer small part is absorbed by crops, and rest part leaching is lost in, and
Its subsidiary sulfate radical or chlorion form calcium sulfate or calcium chloride with the calcium ion in soil, reduce calcium content in soil, cause
Soil hardening reduces soil fertility.Therefore the not scientifical use of chemical fertilizer has had resulted in the different degrees of pollution of natural ecological environment
And destruction.Food security has become an important topic of current livelihood issues, people to the serious hope of pollution-free ecological environment and
The demand of pollution-free food is more and more urgent.
Water hyacinth is a kind of water plant, the ability with the stronger nitrogen phosphorus nutrient absorbed in water body and soil pick-up, together
When can absorb heavy metal in water body, be effective plant of water ecology reparation and prevention and cure of pollution.But water hyacinth is in water
Reproduction speed quickly, is such as cleared up not in time, it will is blocked river, is influenced traffic, and it occupies a large amount of nutrients, triggers river Zhong Shui
Plant and the extinction of animal, destroy the ecological environment in river.The water hyacinth salvaged at present adds on a small quantity as feed
Agent, most of be idle are thrown away, and cause secondary pollution.Also there is the report using producing organic fertilizer by using water hyacinth in recent years.In
State invention patent publication number CN101962308A discloses a kind of method that water keeping fertilizer is prepared using water plant, is with water calabash
Reed class water plant is raw material, by the modified water plant fiber obtained with water suction with water-retaining property performance, then with chemical fertilizer etc.
Mixing generates a kind of fertilizer with water retention property.Containing substantial amounts of heavy metal in water hyacinth, the invention not to heavy metal into
Row processing, in being manured into soil, Heavy Metal Pollution is all caused to plant and soil.Chinese invention patent publication number
CN102674934A discloses a kind of water-retaining type amino acid bio-organic fertilizer prepared with water hyacinth, by fresh new water hyacinth powder
It is broken, beneficial bacterium is added, lignite, common organic materials and agricultural rare-earth mixing are added in after mixing, fermentation and is fermented again, sub-sieve is made
Finished product.Chinese invention patent publication number CN103601566A discloses a kind of Water hyacinth organic fertilizer, raw by water hyacinth dry product
Object bacterium, turf, mineral fertilizer mixed fermentation gained.Chinese invention patent publication number CN101913932A discloses a kind of water hyacinth
Relieving haperacidity produces organic phosphatic fertiliser method, which ferments sour after being mixed using plant acid bacterial strain mother liquor with the fresh water hyacinth shredded
Liquid adds and organic phosphatic fertiliser is made after rock phosphate in powder is mixed evenly.More than patent is all the technique hand by hyacinth fermentation
The production of Duan Jinhang fertilizer is not handled the heavy metal in water hyacinth, can all heavy metal be caused to endanger crop and soil
Evil.
The content of the invention
In order to improve the utilization rate of potash fertilizer, harm of the heavy metal to crop and soil in water hyacinth is solved, the present invention proposes
A kind of green ecological potash fertilizer, which is that water hyacinth is removed heavy metal processing, then is lived with potash fertilizer on surface
Property agent under the action of be combined, can effectively prevent that potash fertilizer leaching in the soil is lost in, improve the utilization rate of potash fertilizer, simultaneously also
Soil can be improved, prevent the heavy metal pollution in soil, increase the fertility of the organic matter and soil in soil, microorganism is improved and live
Property, the product quality of crops is promoted, is a kind of green ecological potash fertilizer harmless to crop and soil.
Invention further provides a kind of preparation method of green ecological potash fertilizer, this method is first to crush water hyacinth,
Removing heavy metals are removed again, are adding in potash fertilizer and activation conditioner after filtering, potash fertilizer is made to be tied with the nutriment in water hyacinth
It closes, generates a kind of green ecological potash fertilizer with sustained release performance.
A kind of green ecological potash fertilizer of the present invention, it is characterised in that：Its each material composition is following parts by weight：
Potash fertilizer：20 ~ 30 parts,
Water hyacinth：30 ~ 50 parts,
Activate conditioner：15 ~ 30 parts,
Rock phosphate in powder：5 ~ 10 parts,
Surfactant：2 ~ 5 parts,
Potash fertilizer described above for it is following any one or a few：Potassium sulfate, potassium chloride, potassium nitrate, potassium dihydrogen phosphate.Water
The fresh water hyacinth that cucurbit is salvaged for May to the October in river or pond.Water hyacinth is salvaged from river or pond
Afterwards, small part is as feed addictive, and major part is then idle, and is caused the waste of space and resource, while will also be caused
Secondary pollution.Contain relatively rich sugar, protein, fat, amino acid, brass and trace element etc., polysaccharide in water hyacinth
Substance can directly be absorbed by crop root in the soil by microorganism decomposition into small molecule carbohydrate, C, H, O are provided for crop, promote
Carbohydrate synthesizes in into crop body, promotes plant growth.Protein, amino acid and brass are natural plant growth regulating
Agent, the in vivo various enzymatic activitys of direct activation crop promote absorption and utilization of the crop to nutritional ingredient.Water hyacinth also has simultaneously
There is certain absorption property, can be in the case where potassium ion be kept not to be lost in, the various nutritional ingredients in Enriching soil are made for
Object absorbs.Water hyacinth is fast to the nitrogen phosphorus nutrient uptake and utilization in water body, therefore the compound of its internal Nitrogen-and Phosphorus-containing is more, these changes
It closes object and various small organic molecules is converted by water hyacinth mostly, applied in the soil as fertilizer, crop can be total to and directly absorbed,
Nitrogen phosphorus nutrient is provided for crop, so as to promote the growth of crop.
Activation conditioner described above is following material composition：Natural minerals and gelatin discarded object, and its ratio be days
Right mineral：Gelatin discarded object=2 ~ 4:1. the wherein described natural minerals are one or more of following several substances mixture：
Bentonite, kaolin, diatomite, attapulgite, sepiolite and medical stone.Containing micro needed for plant in these natural minerals
Element and rare earth element can promote plant growth, improve the disease-resistant degeneration-resistant insect resistace of crop, improve the quality of crop；Simultaneously
Also there is certain absorption property, potassium ion can be adsorbed, potassium ion is prevented to be leached loss；It can also improve soil simultaneously, increase
Add the crumb structure of soil and the quantity of soil micelle, promote the activity of microorganism, improve the fertility of soil, promote crop
Growth.Contain substantial amounts of animal bone powder and the in vivo organic matter of animal, amino acid etc. in gelatin discarded object described above, this
A little discarded objects can promote the growth of microorganism, improve the activity of microorganism, so as to carry as the growth raw material of Soil Microorganism
Height is increase soil fertility as the absorption to nutritional ingredient.
Surfactant described above is any one in following substance：Poly- propylhomoserin, maleic acid, xanthans are transparent
Matter acid, rhamnose.These surfactants can change water hyacinth surface tension, can be combined with potassium ion, fixed potassium
Ion prevents the leaching of potassium ion to be lost in, achievees the purpose that sustained release, improves the utilization rate of potassium ion.
A kind of preparation method of green ecological potash fertilizer of the present invention, it is characterised in that：Comprise the following steps：
（1）After the fresh water hyacinth of salvaging is rinsed well sludge with clear water, 5 are crushed to using pulverizer ~
10cm sizes, it is spare；
（2）Water hyacinth after crushing is added in into reactive tank, while adds in clear water and floods solid water hyacinth, adds in soda acid
Conditioning agent adjusts pH value to 5 ~ 7, sets reaction temperature as 30 DEG C, after being kept for 2 ~ 4 days with this condition, filters to obtain solid；
（3）By step（2）In solid water hyacinth be dehydrated to moisture be 20% ~ 25%, recycle pulverizer powder
Granularity is broken to as 50 ~ 100 mesh；
（4）By step（3）In obtained solid add in into stirred autoclave, while add in potash fertilizer, rock phosphate in powder and table
Face activating agent, adjustment pH value is 5 ~ 7, is sufficiently mixed 9 ~ 11h of reaction；
（5）Activation conditioner is added in, after continuing 3 ~ 5h of stirring, drying to moisture is 3% ~ 5%, you can obtains a kind of green
Ecological potash fertilizer.
Above-mentioned steps（2）With（4）In acid-base modifier in, wherein acidity regulator be nitric acid（HNO3）And sodium hydroxide
（NaOH）, be 30 DEG C in temperature, under the conditions of pH value is 5 ~ 7 clear water, most of heavy metal in water hyacinth can with separate out,
It is dissolved in clear water, passes through filtering, you can plurality of heavy metal of going out reduces the content of heavy metal in water hyacinth, avoids water hyacinth
For causing heavy metal pollution to crop and soil in fertilizer, human health and soil environment are endangered.
A kind of green ecological potash fertilizer of the present invention and preparation method thereof, by the use of the water hyacinth of high organic matter and absorption property as
Organic matter and inorganic fertilizer are combined together by the main carriers of potash fertilizer using surfactant, can effectively prevent the leaching of potash fertilizer
It is lost in and is surrounded by silicate in soil and fixed, while can reach sustained release performance, improve the utilization rate of potash fertilizer.Can be again simultaneously
Plant provides a great number of elements and middle trace element, and absorption property can absorb moisture, and be preserved, and can reach water conservation
Purpose.The fertilizer can also increase the crumb structure of soil, improve the hardened of soil, increase the transparent performance of soil, promote soil
Microorganism and plant root activity, promote absorption of the crop to nutrient, enhance the degeneration-resistant disease resistance of crop, promote the product of crop
Matter.The present invention can also prevent heavy metal pollution crop and soil, reduce the content of beary metal in soil, protect soil environment,
Improve soil fertility.
A kind of green ecotypical potassium of the present invention and preparation method thereof, outstanding feature and advantageous effect are：
1st, using rapid water hyacinth offer organic matter is bred, combined with potash fertilizer, the leaching of potash fertilizer is prevented to be lost in, can reach
The purpose that potash fertilizer slowly discharges improves the utilization rate of potash fertilizer；
2nd, improve soil hardening situation, increase the crumb structure of soil, improve Soil Microorganism activity, enhance crop
Degeneration-resistant disease resistance increases organic carbon content in soil, promotes soil fertility.
3rd, by the use of water hyacinth as organic matter, solve the problems, such as that water hyacinth is spread unchecked in river, the water hyacinth that would sit idle for
It makes full use of, reduces content of beary metal in water hyacinth, it is therefore prevented that crop and soil are contaminated by heavy metals, while as fertilizer also
Ecological environment can be balanced.
4th, it is environmentally friendly substance that the present invention, which uses substance, soil environment will not be polluted, long-time service
Soil Environmental Pollution situation, while the suitable large-scale production of the present invention can be improved.
Specific embodiment
In the following, the present invention will be further described in detail by way of specific embodiments, but should not be construed as the model of the present invention
It encloses permission and is only limitted to following example.
Embodiment 1
A kind of green ecological potash fertilizer, consisting of following substance weight part：
20 parts of potash fertilizer, 50 parts of water hyacinth activate 20 parts of conditioner, 5 parts of rock phosphate in powder, 5 parts of surfactant.
It wherein activates conditioner composition and its ratio be natural minerals：Gelatin discarded object=2:1, natural minerals are kaolin
With the arbitrary ratio of sepiolite.
Wherein surfactant is poly- propylhomoserin.
A kind of preparation method of green ecological potash fertilizer, has steps of：
（1）After the fresh water hyacinth of salvaging is rinsed well sludge with clear water, 5 are crushed to using pulverizer ~
10cm sizes, it is spare；
（2）Water hyacinth after crushing is added in into reactive tank, while adds in clear water and floods solid water hyacinth, adds in soda acid
Conditioning agent adjusts pH value to 5 ~ 7, sets reaction temperature as 30 DEG C, after being kept for 2 ~ 4 days with this condition, filters to obtain solid；
（3）By step（2）In solid water hyacinth be dehydrated to moisture be 20% ~ 25%, recycle pulverizer powder
Granularity is broken to as 50 ~ 100 mesh；
（4）By step（3）In obtained solid add in into stirred autoclave, while add in potash fertilizer, rock phosphate in powder and table
Face activating agent, adjustment pH value is 5 ~ 7, is sufficiently mixed 9 ~ 11h of reaction；
（4）Activation conditioner is added in, after continuing 3 ~ 5h of stirring, drying to moisture is 3% ~ 5%, you can obtains a kind of green
Ecological potash fertilizer.
Embodiment 2
A kind of green ecological potash fertilizer, consisting of following substance weight part：
25 parts of potash fertilizer, 40 parts of water hyacinth activate 25 parts of conditioner, 7 parts of rock phosphate in powder, 3 parts of surfactant.
It wherein activates conditioner composition and its ratio be natural minerals：Gelatin discarded object=3:1, natural minerals are concave convex rod
Soil.
Wherein surfactant is maleic acid.
A kind of preparation method of green ecological potash fertilizer, has steps of：
（1）After the fresh water hyacinth of salvaging is rinsed well sludge with clear water, 5 are crushed to using pulverizer ~
10cm sizes, it is spare；
（2）Water hyacinth after crushing is added in into reactive tank, while adds in clear water and floods solid water hyacinth, adds in soda acid
Conditioning agent adjusts pH value to 5 ~ 7, sets reaction temperature as 30 DEG C, after being kept for 2 ~ 4 days with this condition, filters to obtain solid；
（3）By step（2）In solid water hyacinth be dehydrated to moisture be 20% ~ 25%, recycle pulverizer powder
Granularity is broken to as 50 ~ 100 mesh；
（4）By step（3）In obtained solid add in into stirred autoclave, while add in potash fertilizer, rock phosphate in powder and table
Face activating agent, adjustment pH value is 5 ~ 7, is sufficiently mixed 9 ~ 11h of reaction；
（4）Activation conditioner is added in, after continuing 3 ~ 5h of stirring, drying to moisture is 3% ~ 5%, you can obtains a kind of green
Ecological potash fertilizer.
Embodiment 3
A kind of green ecological potash fertilizer, consisting of following substance weight part：
30 parts of potash fertilizer, 35 parts of water hyacinth activate 25 parts of conditioner, 6 parts of rock phosphate in powder, 4 parts of surfactant.
It wherein activates conditioner composition and its ratio be natural minerals：Gelatin discarded object=4:1, natural minerals are bentonite
With the arbitrary ratio of medical stone.
Wherein surfactant is rhamnose.
A kind of preparation method of green ecological potash fertilizer, has steps of：
（1）After the fresh water hyacinth of salvaging is rinsed well sludge with clear water, 5 are crushed to using pulverizer ~
10cm sizes, it is spare；
（2）Water hyacinth after crushing is added in into reactive tank, while adds in clear water and floods solid water hyacinth, adds in soda acid
Conditioning agent adjusts pH value to 5 ~ 7, sets reaction temperature as 30 DEG C, after being kept for 2 ~ 4 days with this condition, filters to obtain solid；
（3）By step（2）In solid water hyacinth be dehydrated to moisture be 20% ~ 25%, recycle pulverizer powder
Granularity is broken to as 50 ~ 100 mesh；
（4）By step（3）In obtained solid add in into stirred autoclave, while add in potash fertilizer, rock phosphate in powder and table
Face activating agent, adjustment pH value is 5 ~ 7, is sufficiently mixed 9 ~ 11h of reaction；
（4）Activation conditioner is added in, after continuing 3 ~ 5h of stirring, drying to moisture is 3% ~ 5%, you can obtains a kind of green
Ecological potash fertilizer.
Embodiment 4
A kind of green ecological potash fertilizer, consisting of following substance weight part：
20 parts of potash fertilizer, 50 parts of water hyacinth activate 15 parts of conditioner, 10 parts of rock phosphate in powder, 5 parts of surfactant.
It wherein activates conditioner composition and its ratio be natural minerals：Gelatin discarded object=3:1, natural minerals are diatomite
Wherein surfactant is xanthans.
A kind of preparation method of green ecological potash fertilizer, has steps of：
（1）After the fresh water hyacinth of salvaging is rinsed well sludge with clear water, 5 are crushed to using pulverizer ~
10cm sizes, it is spare；
（2）Water hyacinth after crushing is added in into reactive tank, while adds in clear water and floods solid water hyacinth, adds in soda acid
Conditioning agent adjusts pH value to 5 ~ 7, sets reaction temperature as 30 DEG C, after being kept for 2 ~ 4 days with this condition, filters to obtain solid；
（3）By step（2）In solid water hyacinth be dehydrated to moisture be 20% ~ 25%, recycle pulverizer powder
Granularity is broken to as 50 ~ 100 mesh；
（4）By step（3）In obtained solid add in into stirred autoclave, while add in potash fertilizer, rock phosphate in powder and table
Face activating agent, adjustment pH value is 5 ~ 7, is sufficiently mixed 9 ~ 11h of reaction；
（4）Activation conditioner is added in, after continuing 3 ~ 5h of stirring, drying to moisture is 3% ~ 5%, you can obtains a kind of green
Ecological potash fertilizer.
Embodiment 5
A kind of green ecological potash fertilizer, consisting of following substance weight part：
30 parts of potash fertilizer, 30 parts of water hyacinth activate 30 parts of conditioner, 8 parts of rock phosphate in powder, 2 parts of surfactant.
It wherein activates conditioner composition and its ratio be natural minerals：Gelatin discarded object=2:1, natural minerals are kaolin
With the arbitrary ratio of sepiolite.
Wherein surfactant is hyaluronic acid.
A kind of preparation method of green ecological potash fertilizer, has steps of：
（1）After the fresh water hyacinth of salvaging is rinsed well sludge with clear water, 5 are crushed to using pulverizer ~
10cm sizes, it is spare；
（2）Water hyacinth after crushing is added in into reactive tank, while adds in clear water and floods solid water hyacinth, adds in soda acid
Conditioning agent adjusts pH value to 5 ~ 7, sets reaction temperature as 30 DEG C, after being kept for 2 ~ 4 days with this condition, filters to obtain solid；
（3）By step（2）In solid water hyacinth be dehydrated to moisture be 20% ~ 25%, recycle pulverizer powder
Granularity is broken to as 50 ~ 100 mesh；
（4）By step（3）In obtained solid add in into stirred autoclave, while add in potash fertilizer, rock phosphate in powder and table
Face activating agent, adjustment pH value is 5 ~ 7, is sufficiently mixed 9 ~ 11h of reaction；
（4）Activation conditioner is added in, after continuing 3 ~ 5h of stirring, drying to moisture is 3% ~ 5%, you can obtains a kind of green
Ecological potash fertilizer.
Claims (2)
1. a kind of green ecological potash fertilizer, it is characterised in that：The green ecological potash fertilizer be rich in polysaccharide and trace element water hyacinth
Organic matter is provided, consisting of the parts by weight of following substance：
Potash fertilizer：20 ~ 30 parts,
Water hyacinth：30 ~ 50 parts,
Activate conditioner：15 ~ 30 parts,
Rock phosphate in powder：5 ~ 10 parts,
Surfactant：2 ~ 5 parts；
The wherein described activation conditioner is natural minerals and the mixture of gelatin discarded object, and its ratio be natural minerals：It is bright
Glue discarded object=2 ~ 4:1；The surfactant is any one in following substance：Poly- propylhomoserin, maleic acid, xanthans, thoroughly
Bright matter acid, rhamnose；
A kind of green ecological potash fertilizer, is prepared by the following method：
（1）After the fresh water hyacinth of salvaging is rinsed well sludge with clear water, it is big to be crushed to 5 ~ 10cm using pulverizer
It is small, it is spare；
（2）Water hyacinth after crushing is added in into reactive tank, while adds in clear water and floods solid water hyacinth, adds in acid-base accommodation
Agent adjusts pH values to 5 ~ 7, sets reaction temperature as 30 DEG C, after being kept for 2 ~ 4 days with this condition, filters to obtain solid；
（3）By step（2）In solid water hyacinth be dehydrated to moisture be 20% ~ 25%, recycle pulverizer be crushed to
Granularity is 50 ~ 100 mesh；
（4）By step（3）In obtained solid add in into stirred autoclave, while add in potash fertilizer, rock phosphate in powder and surface and live
Property agent, adjustment pH values are 5 ~ 7, are sufficiently mixed 9 ~ 11h of reaction；
（5）Activation conditioner is added in, after continuing 3 ~ 5h of stirring, drying to moisture is 3% ~ 5%, you can it is raw to obtain a kind of green
State potash fertilizer.
2. a kind of green ecological potash fertilizer according to claim 1, it is characterised in that：Wherein step（2）With（4）In acid
In alkali conditioning agent, wherein acidity regulator is nitric acid（HNO3）And sodium hydroxide（NaOH）.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1267655A (en) * | 1999-03-19 | 2000-09-27 | 中国科学院水生生物研究所 | Preparation of re-compounded fertilizer |
| CN101274863A (en) * | 2008-05-08 | 2008-10-01 | 陈桓峰 | Organic fertilizer |
| CN101486613A (en) * | 2009-02-18 | 2009-07-22 | 沃邦（江苏）生态肥业有限公司 | Method for preparing organic fertilizer by mixed fermentation of water hyacinth and dewatered sludge |
| CN101781140A (en) * | 2010-02-03 | 2010-07-21 | 北京海亚地大生化科技有限公司 | Organic fertilizer and preparation method and application thereof |
-
2014
- 2014-12-26 CN CN201410823963.1A patent/CN104557287B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1267655A (en) * | 1999-03-19 | 2000-09-27 | 中国科学院水生生物研究所 | Preparation of re-compounded fertilizer |
| CN101274863A (en) * | 2008-05-08 | 2008-10-01 | 陈桓峰 | Organic fertilizer |
| CN101486613A (en) * | 2009-02-18 | 2009-07-22 | 沃邦（江苏）生态肥业有限公司 | Method for preparing organic fertilizer by mixed fermentation of water hyacinth and dewatered sludge |
| CN101781140A (en) * | 2010-02-03 | 2010-07-21 | 北京海亚地大生化科技有限公司 | Organic fertilizer and preparation method and application thereof |
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