CN108863636A - A kind of alkaline complex fertilizer and preparation method thereof for preventing and improveing soil acidification - Google Patents
A kind of alkaline complex fertilizer and preparation method thereof for preventing and improveing soil acidification Download PDFInfo
- Publication number
- CN108863636A CN108863636A CN201710328150.9A CN201710328150A CN108863636A CN 108863636 A CN108863636 A CN 108863636A CN 201710328150 A CN201710328150 A CN 201710328150A CN 108863636 A CN108863636 A CN 108863636A
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- CN
- China
- Prior art keywords
- dap
- diammonium phosphate
- potassium sulfate
- complex fertilizer
- calcium carbonate
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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
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Soil Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Fertilizers (AREA)
Abstract
The invention discloses a kind of alkaline complex fertilizers and preparation method thereof for preventing and improveing soil acidification, belong to complex fertilizer technical field.Its raw material and weight percent are：Urea 10%-30%, Diammonium phosphate (DAP) 6%-40%, potassium sulfate 0%-30%, calcium oxide 1%-5% and calcium carbonate 1%-15%.Preparation method is：Calcium oxide, calcium carbonate, urea and potassium sulfate are taken according to the ratio and is broken for powdery, and heating enters roller pelletizer and is granulated after mixing, is uniformly mixed to obtain finished product after entering mixer with Diammonium phosphate (DAP) particle according to the ratio after the completion of being granulated.The alkalinity complex fertilizer is using calcium oxide as alkaline components; using calcium carbonate as interleaving agent and pH value buffer; particle is made with the premixing of the potassium sulfate of physiological phenomenon in basic materials to mix with the much the same Diammonium phosphate (DAP) particle of its pH value again, then basic materials will not react with Diammonium phosphate (DAP) causes nitrogen loss and P elements activity to reduce.
Description
Technical field
The invention belongs to complex fertilizer technical field, in particular to a kind of prevention and the alkaline compound fertilizer for improveing soil acidification
Material and preparation method thereof.
Background technique
Current chemical fertilizer largely uses, and the nitrogen and potassium in chemical fertilizer exist in the form of sulfate and hydrochloride mostly（Such as
NH4CL、NH4SO4、KCL、K2SO4）.The cation after chemical fertilizer of this form is applied to soil, in salt（NH4+、K+）By crop
It is a large amount of to absorb, and corresponding anion（CL-、SO42-）Still retain in the soil with the H in soil+Ions binding generates phase
The inorganic acid answered, leads to soil acidification, and this situation is in south China and protecting field（Greenhouse）Middle performance is particularly acute.Soil
PH value can be even lower down to 5, and pH value needed for crops normal growth is generally proper in 6-7, thus leads to crop cut
It produces.Tradition improvement soil acidification is to apply white lime Ca in the soil by the way of（OH）2, the bad control of dosage, white lime
Property stable in the air is bad, is easy to lose activity with the carbon dioxide reaction in air, and application is also inconvenient, increases artificial
Cost, application is improper to be also possible to damage crop.
Summary of the invention
In order to mitigate and improve the problem of chemical fertilizer leads to soil acidification, be added in the production process of chemical fertilizer appropriate alkalinity at
Point, remaining acid ion can be neutralized, to reach soil acidification problem caused by mitigating chemical fertilizer, properly increases alkaline components
Content, can also play a part of improve acidified soil.But alkaline components are directly added in complex fertilizer, alkaline components are easy
With raw materials other in complex fertilizer（Such as phosphorus and nitrogen）It chemically reacts, causes nitrogen volatilization and P elements activity to reduce, lead
Complex fertilizer is caused to be unable to reach the corresponding quality requirement of country.Therefore, in fertilizer add alkaline components should solve additive with
The problem that fertilizer nutrient coexists is allowed to meet the state quality standard of complex fertilizer.The alkaline components that the present invention uses is oxidations
Calcium adds neutral calcium carbonate as interleaving agent and pH value buffer, while P elements raw material does not select physiological phenomenon
Monoammonium phosphate, and the Diammonium phosphate (DAP) of physiological alkalinity is selected, alkaline components pre-granulation is used in production, by basic materials and physiology
Acid potassium sulfate premixing, improves the pH value of its mixture, due to the presence of buffer calcium carbonate, improves alkaline components oxygen
Change the stability of calcium, while the pH value for avoiding mixture is excessively high, is then mixed again with Diammonium phosphate (DAP) particle, two kinds at this time
Particle pH value difference is little, can stablize and coexist, therefore alkaline components will not react with Diammonium phosphate (DAP) nitrogen is caused to be damaged
P elements activity of becoming estranged reduces.
On the one hand, the embodiment of the invention provides a kind of alkaline complex fertilizer prevented and improve soil acidification, the alkalinity
Complex fertilizer is the alkaline fertilizer of total nutrient 30%-45%, soil acidification problem caused by can improveing because of long-term mugineic acid chemical fertilizer.
Wherein, complex fertilizer particle made of calcium oxide, calcium carbonate, urea and potassium sulfate and Diammonium phosphate (DAP) particle mix；
Wherein, the weight percent of each raw material is：Urea 10%-30%, Diammonium phosphate (DAP) 6%-40%, potassium sulfate 0%-30%, calcium oxide 1%-5%
With calcium carbonate 1%-15%.
Wherein, calcium oxide, calcium carbonate, urea and potassium sulfate are granulated by roller pelletizer in the embodiment of the present invention
（Using conventional granulation processes）.In addition, particle made of calcium oxide, calcium carbonate, urea and potassium sulfate in the embodiment of the present invention
PH value（By adjusting the ratio of each raw material）Almost and be physiological alkalinity with the pH value of Diammonium phosphate (DAP) particle.
On the other hand, the embodiment of the invention also provides the preparation method of aforementioned base complex fertilizer, this method includes：It presses
Proportion takes calcium oxide, calcium carbonate, urea and potassium sulfate and is broken for powdery, and heating enters roller pelletizer and carries out after mixing
It is granulated, is uniformly mixed to obtain finished product after entering mixer with Diammonium phosphate (DAP) particle according to the ratio after the completion of being granulated.
To sum up, technical solution bring beneficial effect provided in an embodiment of the present invention is：
1, the alkaline components that use of the present invention are for calcium oxide, add the calcium carbonate of neutrality as interleaving agent and pH value buffer,
The stability of alkaline components calcium oxide is improved, while the pH value for avoiding mixture is excessively high.
2, P elements raw material does not select the monoammonium phosphate of physiological phenomenon, and selects the Diammonium phosphate (DAP) of physiological alkalinity, in life
Alkaline components pre-granulation is used when production, and the potassium sulfate of basic materials and physiological phenomenon is pre-mixed, the pH value of its mixture is improved.
3, basic materials and Diammonium phosphate (DAP) are separated, avoid nitrogen loss and ensure that the activity of P elements, used
Particle made of basic materials is mixed with Diammonium phosphate (DAP) particle, two kinds of particles pH value difference is little at this time, can stablize
It coexists.
4, this alkalinity complex fertilizer is stable and application is convenient.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, the present invention will be made below further detailed
Description.
1, each content of raw material（Weight percent）：Urea 22%.Diammonium phosphate (DAP) 32%.Potassium sulfate 30%, calcium oxide 2%, carbon
Sour calcium 14%.
2, preparation method：It is uniformly mixed after urea, potassium sulfate, calcium oxide and calcium carbonate are crushed respectively, passes through after heating
Roller pelletizer is granulated, and is added after Diammonium phosphate (DAP) particle enters mixer and is uniformly mixed after the completion of being granulated, as finished product is multiple
Complex fertilizer material.
3, crop field effect test：
For trying fertilizer：General acidic compound fertilizer 45%（Nitrogen：Phosphorus：Potassium 15-15-15）, alkaline complex fertilizer（Product above-mentioned, nitrogen：
Phosphorus：Potassium 15-15-15）.
For trying soil：Yellowish soil, pH value 5.11, organic matter 40g/kg, alkali-hydrolyzable nitrogen 126.3mg/kg, available phosphorus 15.8mg/
Kg, available potassium 171mg/kg；
Crop：Potato, kind：Meter La；
Experimental design：2 processing, 4 repetitions, 20 ㎡ of plot area；
Processing 1：10kg/ mus of 30kg+ urea of general acidic compound fertilizer；
Processing 2：10kg/ mus of alkaline compound fertilizer 30kg+ urea；
Test and management：On November 16th, 2012 applies fertilizer to the subsoil（Compound fertilizer）After sow, on March 2nd, 2013 imposes urea, May 27
Day harvests.
As a result with analysis：
Table 1 is that complex fertilizer influences soil pH value
Table 1
| Processing | PH before applying fertilizer | Apply fertilizer January after pH | PH increases and decreases after January | After harvest | PH increases and decreases after harvest |
| 1 | 5.11 | 4.94 | -0.17 | 4.95 | -0.16 |
| 2 | 5.11 | 5.36 | +0.25 | 5.30 | +0.19 |
Table 2 is influence of the complex fertilizer to potato yield
Table 2
Conclusion (of pressure testing)：As can be seen from Table 1 and Table 2, on soil, applying alkaline complex fertilizer can be improved the production of potato
Amount, but increase rate is general（But the effect compared with general acidic compound fertilizer cooperation white lime is good, and verified its can only improve soil pH
Value, cannot improve yield substantially）But it is obvious to promote soil pH value effect, it is contemplated that continuous administration, which can achieve, increases substantially soil
PH value and the effect for promoting yield.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (3)
1. a kind of prevention and the alkaline complex fertilizer for improveing soil acidification, which is characterized in that its raw material and weight percent are：Urine
Plain 10%-30%, Diammonium phosphate (DAP) 6%-40%, potassium sulfate 0%-30%, calcium oxide 1%-5% and calcium carbonate 1%-15%.
2. prevention according to claim 2 and the alkaline complex fertilizer for improveing soil acidification, which is characterized in that by aoxidizing
Particle made of calcium, calcium carbonate, urea and potassium sulfate and Diammonium phosphate (DAP) particle mix.
3. preventing and improveing as claimed in claim 1 or 2 the preparation method of the alkaline complex fertilizer of soil acidification, feature exists
In, take calcium oxide, calcium carbonate, urea and potassium sulfate according to the ratio and be broken for powdery, after mixing heating enter roller be granulated
Machine is granulated, and is uniformly mixed to obtain finished product after entering mixer with Diammonium phosphate (DAP) particle according to the ratio after the completion of being granulated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710328150.9A CN108863636A (en) | 2017-05-11 | 2017-05-11 | A kind of alkaline complex fertilizer and preparation method thereof for preventing and improveing soil acidification |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710328150.9A CN108863636A (en) | 2017-05-11 | 2017-05-11 | A kind of alkaline complex fertilizer and preparation method thereof for preventing and improveing soil acidification |
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| Publication Number | Publication Date |
|---|---|
| CN108863636A true CN108863636A (en) | 2018-11-23 |
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| CN201710328150.9A Pending CN108863636A (en) | 2017-05-11 | 2017-05-11 | A kind of alkaline complex fertilizer and preparation method thereof for preventing and improveing soil acidification |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110249771A (en) * | 2019-06-20 | 2019-09-20 | 中国农业科学院农业资源与农业区划研究所 | A kind of chemical nitrogen fertilizer and acylate match the method for applying prevention and treatment red soil acidification |
-
2017
- 2017-05-11 CN CN201710328150.9A patent/CN108863636A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110249771A (en) * | 2019-06-20 | 2019-09-20 | 中国农业科学院农业资源与农业区划研究所 | A kind of chemical nitrogen fertilizer and acylate match the method for applying prevention and treatment red soil acidification |
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Application publication date: 20181123 |