CN110256146A - A kind of slow-releasing granules compound fertilizer and preparation method thereof of stalk film forming - Google Patents
A kind of slow-releasing granules compound fertilizer and preparation method thereof of stalk film forming Download PDFInfo
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- CN110256146A CN110256146A CN201910548340.0A CN201910548340A CN110256146A CN 110256146 A CN110256146 A CN 110256146A CN 201910548340 A CN201910548340 A CN 201910548340A CN 110256146 A CN110256146 A CN 110256146A
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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
- 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
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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
- 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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- 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
- C05G5/00—Fertilisers characterised by their form
- C05G5/30—Layered or coated, e.g. dust-preventing coatings
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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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- General Chemical & Material Sciences (AREA)
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Abstract
The invention discloses a kind of slow-releasing granules compound fertilizers and preparation method thereof of stalk film forming.The slow-releasing granules compound fertilizer of stalk film forming, it includes fertilizer inner core and stalk coating；Stalk coating is coated on the outer layer of fertilizer inner core；The mass ratio of fertilizer inner core and stalk coating is 1:2~4；Fertilizer inner core includes that the component of following mass parts is made: 20~45 parts of urea；25~50 parts of Diammonium phosphate (DAP)；20 parts of potassium sulfate；Stalk coating includes that the component of following mass parts is made: 40~55 parts of straw powder；3~5 parts of straw biological carbon dust；5~8 parts of peanut shell powder；5~8 parts of beanpod powder；5~15 parts of sunflower disk meal；5~15 parts of bagasse；5~8 parts of zeolite powder；3 parts of brown coal powder: straw powder and the stalk of straw biological carbon dust use are selected from least one of rice, corn, wheat, soybean, sunflower, cotton, peanut and sorghum.The present invention utilizes chemical fertilizer and stalk, wraps up layer by layer, realizes the sustained release of fertilizer and the returning to the field of organic matter, production cost is low, had good sustained release effect.
Description
Technical field
The present invention relates to a kind of slow-releasing granules compound fertilizers and preparation method thereof of stalk film forming, belong to the soil in agriculture field
Loamy texture amount regulation technology field.
Background technique
China is one of country that fertilizer amount is most in the world (Gao Xiangzhao, 2001), since the establishment of the nation, fertilizer application amount
Increase brings increasing considerably for grain yield, is made that huge contribution to solve the problem of food and clothing of our people.But
Fertilizer application amount increases year by year in recent years, but same period grain yield increases seldom, and fertilizer application and grain output occur seriously
Contrast.As improvement soil texture, the effective way of agricultural product quality is improved, the development and application of China's organic fertilizer are relatively stagnant
(Li Guangsheng, 2014) afterwards.China is a large agricultural country, and agricultural crop straw is the maximum byproduct of agricultural production, stock number ten
Divide and enrich, is that source organic fertilizer the most abundant processes raw material, has many advantages, such as low in cost, easy be easy to get.Mainly make in China
Object stalk type has nearly 20 kinds, and annual output accounts for about the 25% of world's stalk resource yield at 800,000,000 tons or more.China's stalk at present
Utilization rate only 50% or so, every year less than 100,000,000 tons, is used as feed wherein collected manure, returning to the field (including collecting loss) account for about 15%
Account for about 15~25%, the stalk resource less than 50% or more 10%, Shang You as the raw material of industry is burned off or abandons, conversion
Efficiency is only 10%~20% or so, and unused stalk not only causes the waste of resource, while also polluted environment.
Summary of the invention
The object of the present invention is to provide a kind of slow-releasing granules compound fertilizer and preparation method thereof of stalk film forming, the present invention is utilized
Chemical fertilizer and stalk, are wrapped up layer by layer, realize the sustained release of fertilizer and the returning to the field of organic matter, and production cost is low, had good sustained release effect.
A kind of slow-releasing granules compound fertilizer of stalk film forming provided by the invention, it includes fertilizer inner core and stalk coating；
The stalk coating is coated on the outer layer of the fertilizer inner core；The quality of the fertilizer inner core and the stalk coating
Than for 1:2~4；
The fertilizer inner core includes that the component of following mass parts is made: 20~45 parts of urea；25~50 parts of Diammonium phosphate (DAP)；Sulphur
20 parts of sour potassium；
The stalk coating includes that the component of following mass parts is made: 40~55 parts of straw powder；Straw biological carbon dust 3~5
Part；5~8 parts of peanut shell powder；5~8 parts of beanpod powder；5~15 parts of sunflower disk meal；5~15 parts of bagasse；Zeolite powder 5~8
Part；3 parts of brown coal powder:
The stalk that the straw powder and the straw biological carbon dust use be selected from rice, corn, wheat, soybean, sunflower,
At least one of cotton, peanut and sorghum.
In above-mentioned slow-releasing granules compound fertilizer, the straw powder, the peanut shell, the beanpod powder, the sunflower flower
Disk powder, the bagasse partial size be 1~2mm, the stalk carbon dust, the zeolite powder, the brown coal powder are crushed to respectively
Fine-powdered is concretely below 1mm through the smashed partial size of raw material；
The straw biological carbon dust is crushed after 400~500 DEG C of carbonizations by the stalk and is made；
The fertilizer inner core further includes trace element fertilizer；The quality of the trace element fertilizer and the urea, the phosphoric acid
The ratio of diammonium and the potassium sulfate gross mass is 1~2:100.
In above-mentioned slow-releasing granules compound fertilizer, the trace element fertilizer includes the component of following mass parts: zinc sulfate 35~
45 parts；35~45 parts of manganese sulfate；5~10 parts of borax；3~5 parts of ferric sulfate；3~5 parts of copper sulphate；1 part of ammonium molybdate.
In above-mentioned slow-releasing granules compound fertilizer, the slow-releasing granules compound fertilizer further includes polyurethane coated layer, and coating quantity accounts for
Total chemical fertilizer inner core mass percentage may adjust painting hierachy number generally 0.8~1% according to the actual situation, play package,
The effect of slow release chemical fertilizer；
The fertilizer inner core successively coats the polyurethane coated layer and the stalk coating.
In above-mentioned slow-releasing granules compound fertilizer, the slow-releasing granules compound fertilizer further includes sodium alginate peplos, the sea
Mosanom peplos is coated on the outer layer of the stalk coating；Water is added in sodium alginate when specific preparation, is added by several times, does not stop to stir
It mixes, appropriate small fire interruption heating forms the solution that mass percentage concentration is 0.5~0.8%, is sprayed on outer layer and forms the seaweed
Sour sodium peplos；
The slow-releasing granules compound fertilizer further includes that its fertiliser granulates surface is processed several apertures, is then sprayed on its surface
The bacterium solution of 0.01% compound sodium nitrophenolate solution and EM, the outer membrane formed after dry.
In above-mentioned slow-releasing granules compound fertilizer, when coating the stalk coating, carried out using the mixed liquor of filtrate and starch
The granulation of the slow-releasing granules compound fertilizer；
The filtrate is prepared to include the following steps: the stalk, rabbit excrement, sheep dung ox urine and water, closed hair is added
Ferment extracts liquid up to the filtrate.
In the present invention, the starch is that starch is commonly used well known to ability, concretely tapioca.
In above-mentioned slow-releasing granules compound fertilizer, the stalk, the rabbit excrement, the sheep dung mass ratio be 75~
80:10:10~15；
The stalk, the rabbit excrement, the sheep dung gross mass urinated with the ox and the mass ratio of the water is
100:10~20:30~40；
The time of the sealed fermenting can be 15~20d.
The present invention also provides a kind of preparation methods of the slow-releasing granules compound fertilizer of stalk film forming, include the following steps: 1)
The urea, the Diammonium phosphate (DAP), the potassium sulfate are mixed through disc granulation, the fertilizer inner core is made；
2) the fertilizer inner core mixed with each component of the stalk coating through disc granulation to get to the stalk at
The slow-releasing granules compound fertilizer of film.
Further include the steps that the trace element fertilizer mixing is added in above-mentioned preparation method, in step 1)；
Further include the steps that the fertilizer inner core coating the polyurethane coated layer after step 1)；
Further include that sodium alginate is added after disc granulation in step 2), sprays water, the stalk coating forms the sea
The step of mosanom peplos；
It further include that the slow-releasing granules compound fertilizer granules surface that the stalk forms a film processes several apertures after step 2), so
Afterwards the bacterium solution of its surface sprinkling 0.01% compound sodium nitrophenolate solution and EM, the outer membrane formed after dry the step of.
In above-mentioned preparation method, carried out when disc granulation using the mixed liquor of filtrate and starch in step 2) described slow
Release the granulation of granular compound fertilizer；
The filtrate is prepared to include the following steps: the stalk, rabbit excrement, sheep dung ox urine and water, closed hair is added
Ferment extracts liquid up to the filtrate.
In above-mentioned preparation method, the stalk, the rabbit excrement, the sheep dung mass ratio can be 75~80:10:
10~15；
The stalk, the rabbit excrement, the sheep dung gross mass urinated with the ox and the mass ratio of the water can be
100:10~20:30~40；
The time of the sealed fermenting can be 15~20d.
In preparation method of the present invention, the straw powder, the peanut shell, the beanpod powder, the sunflower disk meal, institute
The partial size for stating bagasse can be 1~2mm；
The straw biological carbon dust is crushed after 400~500 DEG C of carbonizations by the stalk and is made.
1) preparation method of the slow-releasing granules compound fertilizer of stalk film forming of the present invention, specifically comprises the following steps: institute
Urea, the Diammonium phosphate (DAP), the potassium sulfate and trace element fertilizer mixing are stated through disc granulation, is made in the fertilizer
Core；
2) the fertilizer inner core is sprayed into polyurethane, coats the polyurethane coated layer；
3) the fertilizer inner core for coating polyurethane coated layer is mixed to sprinkling filter with each component of the stalk coating
The mixed liquor of liquid and starch obtains chemical fertilizer granule through disc granulation；
The filtrate is prepared to include the following steps: the stalk, rabbit excrement, sheep dung ox urine and water, closed hair is added
Ferment extracts liquid up to the filtrate；
4) sodium alginate is added in the chemical fertilizer granule, sprays into water, forms the alginic acid in the stalk coating outer layer
Sodium peplos；
5) the chemical fertilizer granule surface that step 4) surface coats the sodium alginate peplos is processed into several apertures, then existed
The bacterium solution of 0.01% compound sodium nitrophenolate solution and EM is sprayed on its surface, and the outer membrane formed after dry is to get to stalk film forming
Slow-releasing granules compound fertilizer.
The slow-releasing granules compound fertilizer of stalk film forming of the present invention may be used also as maize planting, apple and the fertilizer of Chinese cabbage
It is adjusted and is formulated according to crop species, be suitable for other more crops.
The usage amount of the slow-releasing granules compound fertilizer of stalk film forming of the present invention is 100~200kg/ mus, specifically can basis
Crop demand mainly calculates the demand of nitrogen, phosphorus and potassium fertilizer, concretely 100kg/ mus, 150kg/ mus or 200kg/ mus, 150
~200kg/ mus or 100~150kg/ mus.
The invention has the following advantages that
1, there is layered structure, be good achievable fertilizer for a long time with the slow release fertilizer combined that takes effect at once.Chemical fertilizer
Wrap up it is polyurethane coated, have multilayer release membranes, fertilizer efficiency release slowly, improve utilization rate of fertilizer；
2, mixed straw powder can provide a variety of nutrition, and low in cost, rich and easy to get.It is that a kind of ecological safety is efficiently native
Earth upgrade materials.
3, urea, Diammonium phosphate (DAP), potassium sulfate etc. can provide nutrient for plant growth.
4, trace element fertilizer can provide microelement for plant growth.
5, stalk charcoal can largely improve soil organic matter in a short time, improve soil texture.
6, the mixed filtrates such as stalk and rabbit excrement sheep dung can promote stalk containing great amount of soluble nutrient and microorganism
Decomposition improves nutrient availability.
7, peanut shell powder (5~8%), beanpod powder (5~8%), sunflower disk meal (5~15%), bagasse (5~
Etc. 15%) containing there are many nutrient elements；
8, zeolite powder (5~8%), brown coal powder (3%) etc. not only can provide nutrient or adsorbent, and soil group can be improved
Aggressiveness content, saves soil moisture；
9, EM bacterium is sprayed on particle surface layer, can quickly improve ecological environment of soil.
10, particle surface contains composite plant growth regulator compound sodium nitrophenolate, has growth promoting effect.
Specific embodiment
Experimental method used in following embodiments is conventional method unless otherwise specified.
The materials, reagents and the like used in the following examples is commercially available unless otherwise specified.
Embodiment 1, for corn stalk form a film slow-releasing granules compound fertilizer preparation
Fertilizer formula: urea, Diammonium phosphate (DAP), potassium sulfate are uniformly mixed according to 43%, 39%, 18% ratio, according to matter
Amount than 1% addition trace element fertilizer, trace element fertilizer include zinc sulfate 45%, manganese sulfate 38%, borax 5%, ferric sulfate 5%,
Copper sulphate 5%, ammonium molybdate 2%.
Filtrate formula: by stalk (including corn, wheat, soybean, peanut, sorghum, mass ratio 1:1:1:1:1) 80%,
Rabbit excrement 10%, sheep dung 10% are added ox urine of the solid masses than 20%, the water of solid matter mass ratio 40% are added, close
15~20d of fermentation is closed, filtrate is extracted；
Stalk coating formula: straw powder (55%), stalk carbon dust (5%), peanut shell powder (5%), beanpod powder (7%), to
Day sunflower disk powder (10%), bagasse (10%), zeolite powder (5%), brown coal powder (3%).
The preparation method for the slow-releasing granules compound fertilizer that stalk for corn forms a film, specifically comprises the following steps:
1, urea, Diammonium phosphate (DAP), potassium sulfate are proportionally uniformly mixed, add trace element fertilizer according to mass ratio, it is micro-
Secondary element fertilizer.By chemical fertilizer through disc granulation, coarse round granule 1 is made.
2, in coarse round granule surface layer spray material, polyurethane coated layer, the total chemical fertilizer inner core matter of coating quantity Zhan are formed
Percentage composition is measured generally 0.8~1%, is formed with polyurethane coated fertilizer little particle.
3, by stalk (corn, wheat, soybean, peanut, sorghum, mass ratio 1:1:1:1:1), rabbit excrement, sheep dung, add
Enter solid masses to urinate than ox, the water of solid matter mass ratio 40% is added, sealed fermenting 20d, extraction liquid is spare, referred to as filters
Liquid；
4, that stalk is crushed to 1~2mm is spare；
5, agricultural crop straw (rice, corn, wheat, soybean, cotton, peanut, mass ratio 1:1:1:1:1:1) is through 500
It is crushed after DEG C carbonization, obtains straw biological carbon, crush spare.
6, by straw powder, (through corn, wheat, soybean, peanut, sorghum, mass ratio 1:1:1:1:1, partial size is 1 after crushing
~2mm), stalk carbon dust, peanut shell powder, beanpod powder, sunflower disk meal, bagasse, zeolite powder, brown coal powder, be sufficiently mixed.Its
Middle peanut shell, beanpod powder, sunflower disk meal, bagasse partial size be 1~2mm
7, it by gained filtrate in third step, is added tapioca thin liquid (starchiness).
8, mixed-powder is added outside polyurethane coated fertilizer little particle having, sprays into the mixing of filtrate and starch thin liquid
Coarse round granule 2 is made in liquid, disc granulation.
9, sodium alginate is added in round granule 2, water spray forms the solution that mass percentage concentration is 0.7%, forms outsourcing
Particle is made in film, drying；
10, multiple apertures finally are processed on the surface of gained particle, by the bacterium solution mist of 0.01% compound sodium nitrophenolate solution and EM
Change the surface for being sprayed at particle, air drying is to get the slow-releasing granules compound fertilizer to form a film for the stalk of corn.
Slow-releasing granules compound fertilizer of the present invention base is applied before broadcasting.It is total to apply 100kg/ mus.Control group normally applies fertilizer, and (corn is with again
Hefei (25-10-10), Leo fertilizer industry produce chemical fertilizer), 100kg/ mus of dose.Compared with the control, example corn ear length of the present invention
2.1cm is averagely improved, fringe brings up again high by 8.5%, yield increase by 12.5~18.6%.
Embodiment 2, for apple stalk form a film slow-releasing granules compound fertilizer preparation
Fertilizer formula: urea, Diammonium phosphate (DAP), potassium sulfate are uniformly mixed according to 35%, 40%, 25% ratio, according to
Mass ratio 2% adds trace element fertilizer, and trace element fertilizer includes zinc sulfate 45%, manganese sulfate 35%, borax 10%, ferric sulfate
5%, copper sulphate 3%, ammonium molybdate 2%.
Filtrate formula: by stalk (corn, wheat, soybean, peanut, sorghum, mass ratio 1:1:1:1:1) 75%, rabbit
Excrement 15%, sheep dung 10% are added ox urine of the solid masses than 15%, the water of solid matter mass ratio 30%, closed hair are added
15~20d of ferment extracts filtrate；
Stalk coating formula: by straw powder (43%), stalk carbon dust (3%), peanut shell powder (8%), beanpod powder (8%),
Sunflower disk meal (15%), bagasse (10%), zeolite powder (8%), brown coal powder (5%).
For apple stalk form a film slow-releasing granules compound fertilizer preparation method in the embodiment of the present invention 1 be used for corn
Stalk film forming slow-releasing granules compound fertilizer preparation method.
Late September to bottom application in October enters, at age tree use " radial canal " fertilization method, 30~40cm of furrow width, ditch depth 30~
40cm, earthing after slow-releasing granules compound fertilizer fertilising of the present invention, applies 150kg per acre.Control group normally applies (apple specific complex
Fertile (15-14-16), the plump industry in ocean produce chemical fertilizer), 150kg/ mus of dose.
Compared with the control group, example of the present invention, apple production increase by 9.5~14.7%, percentage of fertile fruit increase by 7.4~9.2% with
On, fruit shape increases, and fragrance increases, and Vc and content of mineral substances are promoted in fruit, and edible rate improves, sweet mouthfeel, quality improving.
Embodiment 3, for Chinese cabbage stalk form a film slow-releasing granules compound fertilizer preparation
Fertilizer formula: urea, Diammonium phosphate (DAP), potassium sulfate are uniformly mixed according to 45%, 35%, 20% ratio, according to matter
For amount than 1.5% addition trace element fertilizer, trace element fertilizer includes zinc sulfate 40%, manganese sulfate 40%, borax 13%, ferric sulfate
3%, copper sulphate 3%, ammonium molybdate 1%.
Filtrate formula: by stalk (corn, wheat, soybean, peanut, sorghum, mass ratio 1:1:1:1:1) 80%, rabbit
Excrement 5%, sheep dung 15% are added ox urine of the solid masses than 20%, the water of solid matter mass ratio 30%, sealed fermenting are added
15~20d extracts filtrate；
Stalk coating formula: by straw powder (41%), stalk carbon dust (5%), peanut shell powder (8%), beanpod powder (8%),
Sunflower disk meal (15%), bagasse (15%), zeolite powder (5%), brown coal powder (3%).
For Chinese cabbage stalk form a film slow-releasing granules compound fertilizer preparation method in the embodiment of the present invention 1 be used for corn
Stalk film forming slow-releasing granules compound fertilizer preparation method.
Before Chinese cabbage sowing, in conjunction with turning over, slow-releasing granules compound fertilizer of the present invention is applied into 20cm soil layer, sowing amount 100kg/ deeply
Mu, rosette state impose 50kg per acre.Control group applies 100kg/ mus of compound fertilizer (ternary compound fertilizer 15-15-15) per acre before arable land,
Rosette state imposes 50kg per acre.Compared with the control group, example of the present invention, Chinese cabbage volume increase 15.1~23.2%.Appearance investigation, taste are more
Juice is tasty and refreshing, and soluble sugar content increases, and quality improves.
Claims (10)
1. a kind of slow-releasing granules compound fertilizer of stalk film forming, it includes fertilizer inner core and stalk coating；
The stalk coating is coated on the outer layer of the fertilizer inner core；The mass ratio of the fertilizer inner core and the stalk coating is
1:2~4；
The fertilizer inner core includes that the component of following mass parts is made: 20~45 parts of urea；25~50 parts of Diammonium phosphate (DAP)；Potassium sulfate
20 parts；
The stalk coating includes that the component of following mass parts is made: 40~55 parts of straw powder；3~5 parts of straw biological carbon dust；Flower
Raw 5~8 parts of shell powder；5~8 parts of beanpod powder；5~15 parts of sunflower disk meal；5~15 parts of bagasse；5~8 parts of zeolite powder；Lignite
3 parts of powder:
The stalk that the straw powder and the straw biological carbon dust use is selected from rice, corn, wheat, soybean, sunflower, cotton
At least one of flower, peanut and sorghum.
2. slow-releasing granules compound fertilizer according to claim 1, it is characterised in that: the straw powder, the peanut shell, described
Beanpod powder, the sunflower disk meal, the bagasse partial size be 1~2mm；
The straw biological carbon dust is crushed after 400~500 DEG C of carbonizations by the stalk and is made；
The fertilizer inner core further includes trace element fertilizer；The quality of the trace element fertilizer and the urea, the Diammonium phosphate (DAP)
Ratio with the potassium sulfate gross mass is 1~2:100.
3. slow-releasing granules compound fertilizer according to claim 2, it is characterised in that: the trace element fertilizer includes following quality
The component of part: 35~45 parts of zinc sulfate；35~45 parts of manganese sulfate；5~10 parts of borax；3~5 parts of ferric sulfate；3~5 parts of copper sulphate；
1 part of ammonium molybdate.
4. slow-releasing granules compound fertilizer according to any one of claim 1-3, it is characterised in that: the slow-releasing granules are compound
Fertilizer further includes polyurethane coated layer；
The fertilizer inner core successively coats the polyurethane coated layer and the stalk coating.
5. slow-releasing granules compound fertilizer described in any one of -4 according to claim 1, it is characterised in that: the slow-releasing granules are compound
Fertilizer further includes sodium alginate peplos, and the sodium alginate peplos is coated on the outer layer of the stalk coating；
The slow-releasing granules compound fertilizer further includes that its fertiliser granulates surface is processed several apertures, is then sprayed on its surface
The bacterium solution of 0.01% compound sodium nitrophenolate solution and EM, the outer membrane formed after dry.
6. slow-releasing granules compound fertilizer according to any one of claims 1-5, it is characterised in that: coat the stalk coating
When, the granulation of the slow-releasing granules compound fertilizer is carried out using the mixed liquor of filtrate and starch；
The filtrate is prepared to include the following steps: the stalk, rabbit excrement, sheep dung, addition ox urine and water, sealed fermenting,
Liquid is extracted up to the filtrate.
7. slow-releasing granules compound fertilizer according to claim 6, it is characterised in that: the stalk, the rabbit excrement, described
The mass ratio of sheep dung is 75~80:10:10~15；
The stalk, the rabbit excrement, the gross mass of the sheep dung and the ox urinate and the mass ratio of the water is 100:10
~20:30~40；
The time of the sealed fermenting is 15~20d.
8. 1) a kind of preparation method of the slow-releasing granules compound fertilizer of stalk film forming, includes the following steps: the urea, the phosphorus
The fertilizer inner core is made through disc granulation in sour diammonium, potassium sulfate mixing；
2) the fertilizer inner core mixed with each component of the stalk coating through disc granulation to get to the stalk film forming
Slow-releasing granules compound fertilizer.
9. preparation method according to claim 8, it is characterised in that: further include that the trace element fertilizer is added in step 1)
The step of mixing；
Further include the steps that the fertilizer inner core coating the polyurethane coated layer after step 1)；
Further include that sodium alginate is added after disc granulation in step 2), sprays water, the stalk coating forms the alginic acid
The step of sodium peplos；
Further include that the slow-releasing granules compound fertilizer granules surface that the stalk forms a film processes several apertures after step 2), then exists
The step of bacterium solution of the sprinkling of its surface 0.01% compound sodium nitrophenolate solution and EM, the outer membrane formed after dry.
10. preparation method according to claim 8 or claim 9, it is characterised in that: through using filtrate when disc granulation in step 2)
The granulation of the slow-releasing granules compound fertilizer is carried out with the mixed liquor of starch；
The filtrate is prepared to include the following steps: the stalk, rabbit excrement, sheep dung, addition ox urine and water, sealed fermenting,
Liquid is extracted up to the filtrate.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111744946A (en) * | 2020-07-02 | 2020-10-09 | 尹东 | Method for adjusting proportion of carbon, nitrogen and phosphorus in petroleum-polluted soil |
| CN114933505A (en) * | 2022-06-17 | 2022-08-23 | 广东福利龙复合肥有限公司 | Compound fertilizer added with active additive and preparation method thereof |
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| CN114957964A (en) * | 2022-06-17 | 2022-08-30 | 宋伟杰 | Degradable automobile foot mat material and preparation method thereof |
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Application publication date: 20190920 |