CN110436999A - Dedicated charcoal base composite fertilizer in a kind of solonchak area cotton field and preparation method thereof - Google Patents
Dedicated charcoal base composite fertilizer in a kind of solonchak area cotton field and preparation method thereof Download PDFInfo
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- CN110436999A CN110436999A CN201910747488.7A CN201910747488A CN110436999A CN 110436999 A CN110436999 A CN 110436999A CN 201910747488 A CN201910747488 A CN 201910747488A CN 110436999 A CN110436999 A CN 110436999A
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
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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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Abstract
The invention discloses dedicated charcoal base composite fertilizers in a kind of solonchak area cotton field and preparation method thereof, are made of the raw material of following number: 15-18 parts of Diammonium phosphate (DAP), 2-5 parts of urea, 30-45 parts of applewood biomass carbon, 8-16 parts of gypsum, 8-16 parts of bentonite.The preparation method comprises the following steps: (1) will uniformly spray wood vinegar on applewood biomass carbon；(2) bentonite and gypsum are sieved with 100 mesh sieve, applewood biomass carbon is crossed into 60 meshes；(3) it is admixed together and stir evenly that Diammonium phosphate (DAP), urea, applewood biomass carbon, gypsum and bentonite are weighed respectively, and charcoal base fertiliser mixtures are made；(4) preliminary granulation is carried out with rotary drum granulator first to above-mentioned charcoal base fertiliser mixtures, then carries out integer granulation with granulating disc, fertiliser granulates is made；(5) fertiliser granulates are dried with drying machine.Charcoal base composite fertilizer of the invention, which has, promotes plant growth, and effect of increasing production is good, the advantages of effectively improving soil fertility, and can improve soil.
Description
Technical field
The present invention relates to charcoal base technical field of fertilizers, compound more particularly to a kind of dedicated charcoal base in solonchak area cotton field
Fertilizer and preparation method thereof.
Background technique
Biomass carbon is that the organic materials such as crop material, timber, feces of livestock and poultry crack carbonization under low temperature limited oxygen condition, rich
Stable material containing organic carbon.With multifrequency natures such as porosity, adsorptivity, stability.It is reported that application is biological in the soil
Crop yield can be improved in matter charcoal, increases soil organic matter content, improves soil physicochemical properties.
Currently based on the charcoal base manure that biomass carbon produces, there is the dedicated charcoal base manure such as large cherry, soybean, beet.Above-mentioned charcoal base
Chemical fertilizer is added in fertilizer, but it is good to specific crop or fruit tree effect, and not meet the regulation of fertilizer requirement of cotton, it is ground for cotton
The charcoal base manure of system has not been reported.
Delta Region of The Yellow River has the tradition of plant cotton.The solonchak plant cotton area of especially this area is larger,
It is long to plant historical time.But local farmers apply fertilizer still empirically, for a long time not according to soil regime and cotton
Flower regulation of fertilizer requirement adjustment fertilising.Such as solonchak pH meta-alkalescence, local farmers are accustomed to application of phosphoric acid diammonium, are easy under alkaline condition
Generate volatilization；The problems such as not application of potash fertilizer simultaneously, application of potash fertilizer is not easy to cause soil potassium insufficient for a long time.There is also changes
The problems such as fertile utilization rate is not high, and soil organic matter content is low, and then influences output of cotton, increase planting cost.
Applicant applied before a kind of dedicated charcoal base manure in cotton field and preparation method thereof (application number:
CN201910033200.X, the applying date: 2019-01-14), the dedicated charcoal base manure in the cotton field is made of the raw material of following parts by weight: phosphorus
Sour 15~18 parts by weight of diammonium, 2~5 parts by weight of urea, 2~5 parts by weight of potassium sulfate, 30~45 weight of cotton stalk charcoal
Part, 8~16 parts by weight of gypsum, 8~16 parts by weight of bentonite.Preparation method is the following steps are included: step 1, cotton stalk exist
Biomass carbon is made in 450-550 DEG C of limit oxygen charing, while wood vinegar being uniformly sprayed on the biomass carbon after being made；Step
2, bentonite and gypsum are sieved with 100 mesh sieve, cotton stalk biomass carbon crosses 60 meshes；Step 3, each raw material is admixed together simultaneously
It stirs evenly, charcoal base fertiliser mixtures is made；Step 4, fertiliser granulates are made to above-mentioned charcoal base fertiliser mixtures；Step 5, with dry
Fertiliser granulates are dried in dry machine, obtain cotton stalk charcoal base manure.Chemical fertilizer utilization can be improved in the charcoal base manure to a certain degree,
Soil organic matter content is improved, output of cotton is increased, but the charcoal base manure fertilizer amount is more, and soil with organic matter content mentions
High level is limited.
In this regard, the application is directed to Delta Region of The Yellow River solonchak Nutrient Characteristic and cotton regulation of fertilizer requirement, develop with apple
The wooden biomass carbon is raw material, and applewood biomass carbon, chemical fertilizer and wood vinegar are combined and develop the dedicated applewood biology of cotton
Matter charcoal base manure, wherein biomass carbon can be improved soil organic matter content and slow down chemical fertilizer discharges process, raisingization in the soil
Fertile utilization rate, and nitrogen and phosphorous fertilizer ratio meets cotton regulation of fertilizer requirement, biomass carbon itself contains potassium, using potassium in fruit tree charcoal to soil
Potassium is supplemented in earth, plays the effect of potash fertilizer.Wood vinegar can reduce biomass carbon pH simultaneously, so that applewood biomass carbon base
It is suitble to apply on solonchak.
Summary of the invention
In view of the deficienciess of the prior art, regulation of fertilizer requirement and Study On The Nutrient Absorption Characters of the present invention according to cotton, pass through by
Applewood biomass carbon and pyroligneous acid, chemical fertilizer combine, and obtaining one kind has promotion plant growth, and effect of increasing production is good, effectively mentions
High soil fertility, and the dedicated charcoal base composite fertilizer in solonchak area cotton field of soil can be improved.
In order to solve the above technical problems, the technical solution used in the present invention is:
A kind of dedicated charcoal base composite fertilizer in solonchak area cotton field, the charcoal base composite fertilizer are made of the raw material of following number: phosphoric acid
15-18 parts of diammonium, 2-5 parts of urea, 30-45 parts of applewood biomass carbon, 8-16 parts of gypsum, 8-16 parts of bentonite.
Preferably, which is made of the raw material of following number: 17 parts of Diammonium phosphate (DAP), 3.5 parts of urea, apple
38 parts of the wooden biomass carbon, 12 parts of gypsum, 13 parts of bentonite.
Preferably, the applewood biomass carbon the preparation method comprises the following steps: applewood is crushed, by broken apple
Fruit tree, which is put into zinc acetate solution, boils, and is then filtered, and drying obtains applewood particle, under the atmosphere of limit oxygen, and in
It is carbonized at 450-550 DEG C, obtains applewood biomass carbon.
Preferably, the limit oxygen atmosphere refers to high pure nitrogen or argon atmosphere, or for nitrogen and vapor, argon gas with
The gaseous mixture of vapor.
Preferably, the present invention also provides the preparation methods of the dedicated charcoal base composite fertilizer in above-mentioned solonchak area cotton field, including
Following steps:
(1) wood vinegar will uniformly be sprayed on applewood biomass carbon；
(2) bentonite and gypsum are sieved with 100 mesh sieve, applewood biomass carbon is crossed into 60 meshes；
(3) it is admixed together and stir that Diammonium phosphate (DAP), urea, applewood biomass carbon, gypsum and bentonite are weighed respectively
Uniformly, charcoal base fertiliser mixtures are made；
(4) preliminary granulation is carried out with rotary drum granulator first to above-mentioned charcoal base fertiliser mixtures, then uses granulating disc
Integer granulation is carried out, fertiliser granulates are made；
(5) fertiliser granulates are dried with drying machine, obtain the dedicated charcoal base composite fertilizer in solonchak area cotton field.
Preferably, the fountain height of pyroligneous acid is that 1 ton of applewood biomass carbon sprays 4.5L wood vinegar in the step (1)
Liquid.
Preferably, during carrying out preliminary granulation with rotary drum first to the fertiliser mixtures in the step (4)
Fertiliser mixtures temperature is 65-75 DEG C, and the water content of fertiliser mixtures is 5-8%.
Preferably, the inlet temperature of drying machine is 200-240 DEG C in the step (5).
Compared with prior art, the present invention have it is following the utility model has the advantages that
(1) apple charcoal base manure provides a kind of approach for solving applewood resource utilization.Applewood biomass is added
The charcoal base manure of charcoal can delay chemical fertilizer to discharge process in the soil, be conducive to improve chemical fertilizer utilization ratio；
(2) wood vinegar nutrient rich in, is conducive to plant growth.Wood vinegar itself is in the acid biomass with alkalinity
Charcoal compounding application can reduce biomass carbon pH.Be conducive to apply in solonchak；
(3) apple charcoal base manure meets national fertilizer standard, while having the characteristics that improve soil, supports after wood vinegar is added
Divide richer；
(4) compared with conventional fertilizer application, the dedicated applewood biomass carbon base of cotton is applied than Single fertilizer Yield Increase In Cotton
11%, soil organic matter content improves 30%, and 40mg/kg, 2.7mg/kg is respectively increased in alkali-hydrolyzable nitrogen, available phosphorus and quick-acting potassium content
And 99mg/kg.Chemical fertilizer 50-70% is saved simultaneously.From material composition, applewood is more than lignin contained by stalk, more surely
Fixed, manufactured biomass carbon is bigger to soil organism raising amount compared with other biological matter charcoal base manure；
(5) compared with conventional fertilizer application, the application dedicated applewood biomass carbon base of cotton saves fertilizer 50- than Single fertilizer
70%；
(6) the apple charcoal organic carbon content in the present invention is 682g/kg, and the cotton stalk charcoal organic carbon in background technique contains
Amount is 436g/kg, therefore apple charcoal organic carbon content of the present invention is higher with respect to cotton stalk charcoal, and the full potassium of applewood is
39.42g/kg, quick-acting potassium content are 957.11g/kg, and potassium content is high, can be used as potash fertilizer and use and reduce or partially substitute potassium
Fertilizer mends potassium by biomass carbon, reduces chemical fertilizer application without the purpose of the underproduction to play；
(7) applewood biomass carbon base can reduce the volatilization loss of ammonium nitrogen, and then improve the content of soil alkali-hydrolyzable nitrogen.
Detailed description of the invention
Fig. 1 apple charcoal infrared spectroscopy structural analysis figure；
Fig. 2 cotton stalk charcoal infrared spectroscopy structural analysis figure.
Specific embodiment
Form by the following examples is described in further detail above content of the invention again, but should not be by this
The range for being interpreted as the above-mentioned theme of the present invention is only limitted to following embodiment, all technologies based on realization belonging to above content of the present invention
It all belongs to the scope of the present invention.
Embodiment 1
The dedicated charcoal base composite fertilizer in solonchak area cotton field of the present embodiment, is made: Diammonium phosphate (DAP) 15 of the raw material of following number
Part, 2 parts of urea, 30 parts of applewood biomass carbon, 8 parts of gypsum, 8 parts of bentonite.
Wherein, the applewood biomass carbon the preparation method comprises the following steps: applewood is crushed, by broken applewood
It is put into zinc acetate solution and boils, be then filtered, dry, obtain applewood particle, under the atmosphere of limit oxygen, and in 450
It is carbonized at DEG C, obtains applewood biomass carbon.
Wherein, the limit oxygen atmosphere refers to high pure nitrogen or argon atmosphere, or steams for nitrogen and vapor, argon gas and water
The gaseous mixture of gas.
In addition, present embodiments providing the preparation method of the dedicated charcoal base composite fertilizer in above-mentioned solonchak area cotton field, including following
Step:
(1) wood vinegar will uniformly be sprayed on applewood biomass carbon；
(2) bentonite and gypsum are sieved with 100 mesh sieve, applewood biomass carbon is crossed into 60 meshes；
(3) it is admixed together and stir that Diammonium phosphate (DAP), urea, applewood biomass carbon, gypsum and bentonite are weighed respectively
Uniformly, charcoal base fertiliser mixtures are made；
(4) preliminary granulation is carried out with rotary drum granulator first to above-mentioned charcoal base fertiliser mixtures, then uses granulating disc
Integer granulation is carried out, fertiliser granulates are made；
(5) fertiliser granulates are dried with drying machine, obtain the dedicated charcoal base composite fertilizer in solonchak area cotton field.
Wherein, the fountain height of pyroligneous acid is that 1 ton of applewood biomass carbon sprays 4.5L wood vinegar in the step (1).
Wherein, fertilizer during carrying out preliminary granulation with rotary drum first to the fertiliser mixtures in the step (4)
Mixture temperature is 65 DEG C, and the water content of fertiliser mixtures is 5%.
Wherein, the inlet temperature of drying machine is 200 DEG C in the step (5).
Embodiment 2
The dedicated charcoal base composite fertilizer in solonchak area cotton field of the present embodiment, is made: Diammonium phosphate (DAP) 18 of the raw material of following number
Part, 5 parts of urea, 45 parts of applewood biomass carbon, 16 parts of gypsum, 16 parts of bentonite.
Wherein, the applewood biomass carbon the preparation method comprises the following steps: applewood is crushed, by broken applewood
It is put into zinc acetate solution and boils, be then filtered, dry, obtain applewood particle, under the atmosphere of limit oxygen, and in 550
It is carbonized at DEG C, obtains applewood biomass carbon.
Wherein, the limit oxygen atmosphere refers to high pure nitrogen or argon atmosphere, or steams for nitrogen and vapor, argon gas and water
The gaseous mixture of gas.
In addition, the present invention provides the preparation method of the dedicated charcoal base composite fertilizer in above-mentioned solonchak area cotton field, including following step
It is rapid:
(1) wood vinegar will uniformly be sprayed on applewood biomass carbon；
(2) bentonite and gypsum are sieved with 100 mesh sieve, applewood biomass carbon is crossed into 60 meshes；
(3) it is admixed together and stir that Diammonium phosphate (DAP), urea, applewood biomass carbon, gypsum and bentonite are weighed respectively
Uniformly, charcoal base fertiliser mixtures are made；
(4) preliminary granulation is carried out with rotary drum granulator first to above-mentioned charcoal base fertiliser mixtures, then uses granulating disc
Integer granulation is carried out, fertiliser granulates are made；
(5) fertiliser granulates are dried with drying machine, obtain the dedicated charcoal base composite fertilizer in solonchak area cotton field.
Wherein, the fountain height of pyroligneous acid is that 1 ton of applewood biomass carbon sprays 4.5L wood vinegar in the step (1).
Wherein, fertilizer during carrying out preliminary granulation with rotary drum first to the fertiliser mixtures in the step (4)
Mixture temperature is 75 DEG C, and the water content of fertiliser mixtures is 8%.
Wherein, the inlet temperature of drying machine is 240 DEG C in the step (5).
Embodiment 3
The dedicated charcoal base composite fertilizer in solonchak area cotton field of the present embodiment, is made: Diammonium phosphate (DAP) 17 of the raw material of following number
Part, 3.5 parts of urea, 38 parts of applewood biomass carbon, 12 parts of gypsum, 13 parts of bentonite.
Wherein, the applewood biomass carbon the preparation method comprises the following steps: applewood is crushed, by broken applewood
It is put into zinc acetate solution and boils, be then filtered, dry, obtain applewood particle, under the atmosphere of limit oxygen, and in 500
It is carbonized at DEG C, obtains applewood biomass carbon.
Wherein, the limit oxygen atmosphere refers to high pure nitrogen or argon atmosphere, or steams for nitrogen and vapor, argon gas and water
The gaseous mixture of gas.
In addition, the present invention also provides the preparation method of the dedicated charcoal base composite fertilizer in above-mentioned solonchak area cotton field, including it is following
Step:
(1) wood vinegar will uniformly be sprayed on applewood biomass carbon；
(2) bentonite and gypsum are sieved with 100 mesh sieve, applewood biomass carbon is crossed into 60 meshes；
(3) it is admixed together and stir that Diammonium phosphate (DAP), urea, applewood biomass carbon, gypsum and bentonite are weighed respectively
Uniformly, charcoal base fertiliser mixtures are made；
(4) preliminary granulation is carried out with rotary drum granulator first to above-mentioned charcoal base fertiliser mixtures, then uses granulating disc
Integer granulation is carried out, fertiliser granulates are made；
(5) fertiliser granulates are dried with drying machine, obtain the dedicated charcoal base composite fertilizer in solonchak area cotton field.
Wherein, the fountain height of pyroligneous acid is that 1 ton of applewood biomass carbon sprays 4.5L wood vinegar in the step (1).
Wherein, fertilizer during carrying out preliminary granulation with rotary drum first to the fertiliser mixtures in the step (4)
Mixture temperature is 70 DEG C, and the water content of fertiliser mixtures is 6.5%.
Wherein, the inlet temperature of drying machine is 220 DEG C in the step (5).
Embodiment 4
The dedicated charcoal base composite fertilizer in solonchak area cotton field of the present embodiment, is made: Diammonium phosphate (DAP) 16 of the raw material of following number
Part, 3 parts of urea, 35 parts of applewood biomass carbon, 10 parts of gypsum, 10 parts of bentonite.
Wherein, the applewood biomass carbon the preparation method comprises the following steps: applewood is crushed, by broken applewood
It is put into zinc acetate solution and boils, be then filtered, dry, obtain applewood particle, under the atmosphere of limit oxygen, and in 480
It is carbonized at DEG C, obtains applewood biomass carbon.
Wherein, the limit oxygen atmosphere refers to high pure nitrogen or argon atmosphere, or steams for nitrogen and vapor, argon gas and water
The gaseous mixture of gas.
In addition, the present invention also provides the preparation method of the dedicated charcoal base composite fertilizer in above-mentioned solonchak area cotton field, including it is following
Step:
(1) wood vinegar will uniformly be sprayed on applewood biomass carbon；
(2) bentonite and gypsum are sieved with 100 mesh sieve, applewood biomass carbon is crossed into 60 meshes；
(3) it is admixed together and stir that Diammonium phosphate (DAP), urea, applewood biomass carbon, gypsum and bentonite are weighed respectively
Uniformly, charcoal base fertiliser mixtures are made；
(4) preliminary granulation is carried out with rotary drum granulator first to above-mentioned charcoal base fertiliser mixtures, then uses granulating disc
Integer granulation is carried out, fertiliser granulates are made；
(5) fertiliser granulates are dried with drying machine, obtain the dedicated charcoal base composite fertilizer in solonchak area cotton field.
Wherein, the fountain height of pyroligneous acid is that 1 ton of applewood biomass carbon sprays 4.5L wood vinegar in the step (1).
Wherein, fertilizer during carrying out preliminary granulation with rotary drum first to the fertiliser mixtures in the step (4)
Mixture temperature is 68 DEG C, and the water content of fertiliser mixtures is 6%.
Wherein, the inlet temperature of drying machine is 210 DEG C in the step (5).
Embodiment 5
The dedicated charcoal base composite fertilizer in solonchak area cotton field of the present embodiment, is made: Diammonium phosphate (DAP) 17 of the raw material of following number
Part, 4 parts of urea, 40 parts of applewood biomass carbon, 14 parts of gypsum, 14 parts of bentonite.
Wherein, the applewood biomass carbon the preparation method comprises the following steps: applewood is crushed, by broken applewood
It is put into zinc acetate solution and boils, be then filtered, dry, obtain applewood particle, under the atmosphere of limit oxygen, and in 520
It is carbonized at DEG C, obtains applewood biomass carbon.
Wherein, the limit oxygen atmosphere refers to high pure nitrogen or argon atmosphere, or steams for nitrogen and vapor, argon gas and water
The gaseous mixture of gas.
Wherein, the present invention also provides the preparation method of the dedicated charcoal base composite fertilizer in above-mentioned solonchak area cotton field, including it is following
Step:
(1) wood vinegar will uniformly be sprayed on applewood biomass carbon；
(2) bentonite and gypsum are sieved with 100 mesh sieve, applewood biomass carbon is crossed into 60 meshes；
(3) it is admixed together and stir that Diammonium phosphate (DAP), urea, applewood biomass carbon, gypsum and bentonite are weighed respectively
Uniformly, charcoal base fertiliser mixtures are made；
(4) preliminary granulation is carried out with rotary drum granulator first to above-mentioned charcoal base fertiliser mixtures, then uses granulating disc
Integer granulation is carried out, fertiliser granulates are made；
(5) fertiliser granulates are dried with drying machine, obtain the dedicated charcoal base composite fertilizer in solonchak area cotton field.
Wherein, the fountain height of pyroligneous acid is that 1 ton of applewood biomass carbon sprays 4.5L wood vinegar in the step (1).
Wherein, fertilizer during carrying out preliminary granulation with rotary drum first to the fertiliser mixtures in the step (4)
Mixture temperature is 72 DEG C, and the water content of fertiliser mixtures is 7%.
Wherein, the inlet temperature of drying machine is 230 DEG C in the step (5).
Test example 1
1, the dedicated charcoal base composite fertilizer field trial in solonchak area cotton field
In Dongying Area, the solonchak of long-term plant cotton carries out 1 year field trial.Setting is not applied fertilizer (CK), is not applied any
Fertilizer；Single fertilizer (F) applies urea 20kg/ mus, 40kg/ mus of Diammonium phosphate (DAP), 666kg/ mus of apple charcoal base manure (WBF).Three
A processing, repeats three times, each cell 30m2, random district's groups arrangement.Apple charcoal base manure is as base manure in 4-5 month sowing cotton seed
Preceding base is applied.Test result is shown in Table 1.
1 different disposal output of cotton of table and soil chemical properties difference
By table 1 it is found that application apple charcoal base manure is than Single fertilizer Yield Increase In Cotton 37%, soil organic matter content is improved
28%, alkali-hydrolyzable nitrogen, available phosphorus and quick-acting potassium content are respectively increased 35%, 41% and 13%.Chemical fertilizer 50-70% is saved simultaneously.With
Control is compared, and soil pH reduces 0.1.
Test example 2
Fig. 1 and Fig. 2 is apple charcoal and cotton stalk charcoal infrared spectroscopy structural analysis figure respectively.
From figure absorption peak variation it is found that apple charcoal compared with cotton stalk charcoal, 2920cm-1、2850cm-1And 1355cm-1
Locating absorption peak strength reduces, and aliphatic carbon content reduces, and in 1635cm-1Locate absorption peak strength and is higher than cotton stalk charcoal, aromatic series
It is higher to close object content.Apple charcoal is in 1600cm-1And 1385cm-1Locate absorption peak strength and be lower than cotton stalk charcoal, illustrates to contain in fruit tree charcoal
Oxygen functional group reduces, and in 1600cm-1Place's absorption peak strength, which reduces, also to be illustrated compared with cotton stalk charcoal, carbon aquation in apple charcoal
Closing object and aliphatic carbon content reduces.
The above result shows that apple charcoal compared with cotton stalk charcoal, is rich in aromatic compounds, aliphatic carbon content is less, knot
Structure is more stable, is more advantageous to raising soil organic matter content.
In conclusion the present invention is directed to Delta Region of The Yellow River solonchak feature and cotton regulation of fertilizer requirement, by applewood biology
Matter charcoal, chemical fertilizer and wood vinegar combine and develop the dedicated applewood biomass carbon base of cotton, and wherein soil can be improved in biomass carbon
The earth content of organic matter discharges process with chemical fertilizer is slowed down in the soil, improves chemical fertilizer utilization ratio, and nitrogen and phosphorous fertilizer ratio meets cotton
Regulation of fertilizer requirement, biomass carbon itself contain potassium, supplement potassium into soil using potassium in fruit tree charcoal, play the effect of potash fertilizer.Together
When wood vinegar can reduce biomass carbon pH so that applewood biomass carbon base is suitble to apply on solonchak.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, although referring to aforementioned reality
Applying example, invention is explained in detail, for those skilled in the art, still can be to aforementioned each implementation
Technical solution documented by example is modified or equivalent replacement of some of the technical features.It is 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 (8)
1. a kind of dedicated charcoal base composite fertilizer in solonchak area cotton field, which is characterized in that the charcoal base composite fertilizer by following number raw material
It is made: 15-18 parts of Diammonium phosphate (DAP), 2-5 parts of urea, 30-45 parts of applewood biomass carbon, 8-16 parts of gypsum, 8-16 parts of bentonite.
2. the dedicated charcoal base composite fertilizer in solonchak area according to claim 1 cotton field, which is characterized in that the charcoal base composite fertilizer by
The raw material of following number is made: 17 parts of Diammonium phosphate (DAP), 3.5 parts of urea, 38 parts of applewood biomass carbon, 12 parts of gypsum, bentonite
13 parts.
3. the dedicated charcoal base composite fertilizer in solonchak area according to claim 1 cotton field, which is characterized in that the applewood biology
Matter charcoal the preparation method comprises the following steps: applewood is crushed, broken applewood is put into zinc acetate solution and is boiled, then into
Row filtering, drying obtain applewood particle, under the atmosphere of limit oxygen, and are carbonized at 450-550 DEG C, obtain applewood
Biomass carbon.
4. the dedicated charcoal base composite fertilizer in solonchak area according to claim 3 cotton field, which is characterized in that the limit oxygen atmosphere is
Refer to high pure nitrogen or argon atmosphere, or the gaseous mixture for nitrogen and vapor, argon gas and vapor.
5. the preparation method of the dedicated charcoal base composite fertilizer in solonchak area according to claim 1-4 cotton field, feature
It is, comprising the following steps:
(1) wood vinegar will uniformly be sprayed on applewood biomass carbon；
(2) bentonite and gypsum are sieved with 100 mesh sieve, applewood biomass carbon is crossed into 60 meshes；
(3) it is admixed together and stir evenly that Diammonium phosphate (DAP), urea, applewood biomass carbon, gypsum and bentonite are weighed respectively,
Charcoal base fertiliser mixtures are made；
(4) preliminary granulation is carried out with rotary drum granulator first to above-mentioned charcoal base fertiliser mixtures, is then carried out with granulating disc
Integer is granulated, and fertiliser granulates are made；
(5) fertiliser granulates are dried with drying machine, obtain the dedicated charcoal base composite fertilizer in solonchak area cotton field.
6. the preparation method of the dedicated charcoal base composite fertilizer in solonchak area according to claim 5 cotton field, which is characterized in that described
The fountain height of pyroligneous acid is that 1 ton of applewood biomass carbon sprays 4.5L wood vinegar in step (1).
7. the preparation method of the dedicated charcoal base composite fertilizer in solonchak area according to claim 5 cotton field, which is characterized in that described
Fertiliser mixtures temperature is 65-75 during carrying out preliminary granulation with rotary drum first to the fertiliser mixtures in step (4)
DEG C, the water content of fertiliser mixtures is 5-8%.
8. the preparation method of the dedicated charcoal base composite fertilizer in solonchak area according to claim 5 cotton field, which is characterized in that described
The inlet temperature of drying machine is 200-240 DEG C in step (5).
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